From f3a29740e14b278cb8cacabede824c04b92c27f8 Mon Sep 17 00:00:00 2001
From: Xavier Elattaoui <xavier.elattaoui@synchrotron-soleil.fr>
Date: Tue, 20 May 2014 13:20:11 +0000
Subject: [PATCH] Minor change

---
 include/TangoGpibLink.h           |  18 +-
 include/TangoSerialLink.h         |  12 +-
 pom.xml                           |   2 +-
 src/AbstractElectrometerClass.cpp | 196 +++++++-------
 src/KeithleyDDCProtocol.cpp       | 118 ++++----
 src/KeithleySCPIProtocol.cpp      | 428 +++++++++++++++---------------
 src/TangoGpibLink.cpp             |  72 ++---
 src/TangoSerialLink.cpp           |  28 +-
 8 files changed, 435 insertions(+), 439 deletions(-)

diff --git a/include/TangoGpibLink.h b/include/TangoGpibLink.h
index dabfae1..a17c310 100644
--- a/include/TangoGpibLink.h
+++ b/include/TangoGpibLink.h
@@ -37,22 +37,22 @@ class TangoGpibLink : public CommunicationLink
 
 public :
 	/**
-	* Initialization. 
+	* Initialization.
 	*/
 	TangoGpibLink (std::string& gpib_device_name);
-	
+
 	/**
 	*  \brief Release resources.
 	*/
 	virtual ~TangoGpibLink (void);
-	
+
 	/**
 	*  \brief Send command (data) as string to hardware.
 	*
 	*  \throws Tango::DevFailed
 	*/
 	void write(std::string cmd)	 throw (Tango::DevFailed);
-	
+
 	/**
 	*  \brief Gets hardware response as string.
 	*
@@ -68,13 +68,13 @@ public :
 	std::string write_read(std::string cmd, size_t readLength=0)  throw (Tango::DevFailed);
 
 	/**
-	*  \brief Returns the Gpib SRQ line state : used here to know if Keithley 
+	*  \brief Returns the Gpib SRQ line state : used here to know if Keithley
   *           device is ready after an integration cycle.
 	*
 	*  \throws Tango::DevFailed
 	*/
-	bool SRQLineState             (void) throw (Tango::DevFailed); //- used to know if the integration cycle is done! 
-	short readStatusByteRegister  (void) throw (Tango::DevFailed); //- device status byte register value on SRQ! 
+	bool SRQLineState             (void) throw (Tango::DevFailed); //- used to know if the integration cycle is done!
+	short readStatusByteRegister  (void) throw (Tango::DevFailed); //- device status byte register value on SRQ!
 
 	/**
 	*  \brief Clear a specific device (same as reset *RST).
@@ -96,10 +96,8 @@ private :
 	* Creates a proxy on the specified GPIB Device.
 	*/
 	void create_gpib_proxy(void) throw (Tango::DevFailed);
-  
+
 	Tango::DeviceProxy* _gpib_proxy;
-	
-	std::string response;
 
 };
 
diff --git a/include/TangoSerialLink.h b/include/TangoSerialLink.h
index ac9d767..0c7c518 100644
--- a/include/TangoSerialLink.h
+++ b/include/TangoSerialLink.h
@@ -34,14 +34,14 @@
 
 class TangoSerialLink : public CommunicationLink
 {
-	
+
 public :
  	/**
-	* \brief Initialization. 
+	* \brief Initialization.
 	*/
 	TangoSerialLink (std::string& serial_device_name);
-	
-	/**	
+
+	/**
 	* \brief Release resources.
 	*/
 	~TangoSerialLink ();
@@ -80,13 +80,11 @@ private :
 	* Creates a proxy on the specified Serial Device.
 	*/
 	void create_serial_proxy(void) throw (Tango::DevFailed);
-  
+
 	//Tango::DeviceProxyHelper* _serial_proxy;
 	Tango::DeviceProxy* _serial_proxy;
 
 	bool _is_serial_proxy_created;
-	
-	std::string response;
 
 };
 
diff --git a/pom.xml b/pom.xml
index dfb1fda..dac1eea 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
    </parent>
    <groupId>fr.soleil.lib</groupId>
    <artifactId>Electrometers-${aol}-${library}-${mode}</artifactId>
-   <version>2.5.12-SNAPSHOT</version>
+   <version>2.5.12</version>
    <packaging>nar</packaging>
    <name>Electrometers library</name>
    <description>Electrometers library</description>
diff --git a/src/AbstractElectrometerClass.cpp b/src/AbstractElectrometerClass.cpp
index 78abaf5..2cc075f 100644
--- a/src/AbstractElectrometerClass.cpp
+++ b/src/AbstractElectrometerClass.cpp
@@ -152,7 +152,7 @@ AbstractElectrometerClass::AbstractElectrometerClass (std::string comLink_device
 	_electrometerProtocol(0),
 	_size(-1),
 	_trigMod(-1)
-	
+
 {
 //	std::cout << "AbstractElectrometerClass::AbstractElectrometerClass <-" << std::endl;
 
@@ -179,7 +179,7 @@ AbstractElectrometerClass::~AbstractElectrometerClass (void)
 // ============================================================================
 // AbstractElectrometerClass::operator=
 // ============================================================================
-AbstractElectrometerClass& AbstractElectrometerClass::operator= (const AbstractElectrometerClass& src) 
+AbstractElectrometerClass& AbstractElectrometerClass::operator= (const AbstractElectrometerClass& src)
 {
   //- no self assign
   if (this == &src) {
@@ -196,7 +196,7 @@ AbstractElectrometerClass& AbstractElectrometerClass::operator= (const AbstractE
 // ============================================================================
 // AbstractElectrometerClass::zero_check_on
 // ============================================================================
-void AbstractElectrometerClass::zero_check_on (void) 
+void AbstractElectrometerClass::zero_check_on (void)
 {
 	//- send command
 	_electrometerProtocol->zero_check_on( );
@@ -204,7 +204,7 @@ void AbstractElectrometerClass::zero_check_on (void)
 // ============================================================================
 // AbstractElectrometerClass::zero_check_off
 // ============================================================================
-void AbstractElectrometerClass::zero_check_off (void) 
+void AbstractElectrometerClass::zero_check_off (void)
 {
 	//- send command
 	_electrometerProtocol->zero_check_off( );
@@ -213,7 +213,7 @@ void AbstractElectrometerClass::zero_check_off (void)
 // ============================================================================
 // AbstractElectrometerClass::zero_correct_on
 // ============================================================================
-void AbstractElectrometerClass::zero_correct_on (void) 
+void AbstractElectrometerClass::zero_correct_on (void)
 {
 	//- send command
 	_electrometerProtocol->zero_correct_on( );
@@ -222,7 +222,7 @@ void AbstractElectrometerClass::zero_correct_on (void)
 // ============================================================================
 // AbstractElectrometerClass::zero_correct_off
 // ============================================================================
-void AbstractElectrometerClass::zero_correct_off (void) 
+void AbstractElectrometerClass::zero_correct_off (void)
 {
 	//- send command
 	_electrometerProtocol->zero_correct_off( );
@@ -231,7 +231,7 @@ void AbstractElectrometerClass::zero_correct_off (void)
 // ============================================================================
 // AbstractElectrometerClass::autoRange_ON
 // ============================================================================
-void AbstractElectrometerClass::autoRange_on (void) 
+void AbstractElectrometerClass::autoRange_on (void)
 {
 	_electrometerProtocol->autoRange_on( );
 }
@@ -239,7 +239,7 @@ void AbstractElectrometerClass::autoRange_on (void)
 // ============================================================================
 // AbstractElectrometerClass::autoRange_OFF
 // ============================================================================
-void AbstractElectrometerClass::autoRange_off (void) 
+void AbstractElectrometerClass::autoRange_off (void)
 {
 	_electrometerProtocol->autoRange_off( );
 }
@@ -247,7 +247,7 @@ void AbstractElectrometerClass::autoRange_off (void)
 // ============================================================================
 // AbstractElectrometerClass::auto_zero_on
 // ============================================================================
-void AbstractElectrometerClass::auto_zero_on (void) 
+void AbstractElectrometerClass::auto_zero_on (void)
 {
 	_electrometerProtocol->auto_zero_on( );
 }
@@ -255,7 +255,7 @@ void AbstractElectrometerClass::auto_zero_on (void)
 // ============================================================================
 // AbstractElectrometerClass::auto_zero_off
 // ============================================================================
-void AbstractElectrometerClass::auto_zero_off (void) 
+void AbstractElectrometerClass::auto_zero_off (void)
 {
 	_electrometerProtocol->auto_zero_off( );
 }
@@ -263,9 +263,9 @@ void AbstractElectrometerClass::auto_zero_off (void)
 // ============================================================================
 // AbstractElectrometerClass::init_keithley
 // ============================================================================
-void AbstractElectrometerClass::init_keithley (void) 
+void AbstractElectrometerClass::init_keithley (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::init_keithley( ).");
 }
@@ -273,7 +273,7 @@ void AbstractElectrometerClass::init_keithley (void)
 // ============================================================================
 // AbstractElectrometerClass::abort
 // ============================================================================
-void AbstractElectrometerClass::abort (void) 
+void AbstractElectrometerClass::abort (void)
 {
 	_electrometerProtocol->abort( );
 }
@@ -281,9 +281,9 @@ void AbstractElectrometerClass::abort (void)
 // ============================================================================
 // AbstractElectrometerClass::set_knplc
 // ============================================================================
-void AbstractElectrometerClass::set_knplc (float) 
+void AbstractElectrometerClass::set_knplc (float)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::set_knplc( ).");
 }
@@ -291,7 +291,7 @@ void AbstractElectrometerClass::set_knplc (float)
 // ============================================================================
 // AbstractElectrometerClass::get_knplc
 // ============================================================================
-std::string AbstractElectrometerClass::get_knplc (void) 
+std::string AbstractElectrometerClass::get_knplc (void)
 {
 	return _electrometerProtocol->get_knplc( );
 }
@@ -299,9 +299,9 @@ std::string AbstractElectrometerClass::get_knplc (void)
 // ============================================================================
 // AbstractElectrometerClass::set_triggerMode
 // ============================================================================
-void AbstractElectrometerClass::set_triggerMode (short) 
+void AbstractElectrometerClass::set_triggerMode (short)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::set_triggerMode( ).");
 }
@@ -309,9 +309,9 @@ void AbstractElectrometerClass::set_triggerMode (short)
 // ============================================================================
 // AbstractElectrometerClass::set_triggercount
 // ============================================================================
-void AbstractElectrometerClass::set_triggercount (short ) 
+void AbstractElectrometerClass::set_triggercount (short )
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::set_triggercount( ).");
 }
@@ -319,7 +319,7 @@ void AbstractElectrometerClass::set_triggercount (short )
 // ============================================================================
 // AbstractElectrometerClass::get_triggercount
 // ============================================================================
-std::string AbstractElectrometerClass::get_triggercount (void) 
+std::string AbstractElectrometerClass::get_triggercount (void)
 {
 	return _electrometerProtocol->get_triggercount( );
 }
@@ -327,7 +327,7 @@ std::string AbstractElectrometerClass::get_triggercount (void)
 // ============================================================================
 // AbstractElectrometerClass::set_triggerdelay
 // ============================================================================
-void AbstractElectrometerClass::set_triggerdelay (std::string trigDelStr) 
+void AbstractElectrometerClass::set_triggerdelay (std::string trigDelStr)
 {
 	_electrometerProtocol->set_triggerdelay(trigDelStr);
 }
@@ -335,7 +335,7 @@ void AbstractElectrometerClass::set_triggerdelay (std::string trigDelStr)
 // ============================================================================
 // AbstractElectrometerClass::get_triggerdelay
 // ============================================================================
-std::string AbstractElectrometerClass::get_triggerdelay (void) 
+std::string AbstractElectrometerClass::get_triggerdelay (void)
 {
 	return _electrometerProtocol->get_triggerdelay( );
 }
@@ -343,7 +343,7 @@ std::string AbstractElectrometerClass::get_triggerdelay (void)
 // ============================================================================
 // AbstractElectrometerClass::set_triggerdelayAuto
 // ============================================================================
-void AbstractElectrometerClass::set_triggerdelayAuto (std::string trigDelAutoStr) 
+void AbstractElectrometerClass::set_triggerdelayAuto (std::string trigDelAutoStr)
 {
 	_electrometerProtocol->set_triggerdelayAuto(trigDelAutoStr);
 }
@@ -351,7 +351,7 @@ void AbstractElectrometerClass::set_triggerdelayAuto (std::string trigDelAutoStr
 // ============================================================================
 // AbstractElectrometerClass::get_triggerdelayAuto
 // ============================================================================
-std::string AbstractElectrometerClass::get_triggerdelayAuto (void) 
+std::string AbstractElectrometerClass::get_triggerdelayAuto (void)
 {
 	return _electrometerProtocol->get_triggerdelayAuto( );
 }
@@ -359,7 +359,7 @@ std::string AbstractElectrometerClass::get_triggerdelayAuto (void)
 // ============================================================================
 // AbstractElectrometerClass::set_averagecount
 // ============================================================================
-void AbstractElectrometerClass::set_averagecount (std::string averCountStr) 
+void AbstractElectrometerClass::set_averagecount (std::string averCountStr)
 {
 	_electrometerProtocol->set_averagecount(averCountStr);
 }
@@ -367,7 +367,7 @@ void AbstractElectrometerClass::set_averagecount (std::string averCountStr)
 // ============================================================================
 // AbstractElectrometerClass::get_averagecount
 // ============================================================================
-std::string AbstractElectrometerClass::get_averagecount (void) 
+std::string AbstractElectrometerClass::get_averagecount (void)
 {
 	return _electrometerProtocol->get_averagecount( );
 }
@@ -375,7 +375,7 @@ std::string AbstractElectrometerClass::get_averagecount (void)
 // ============================================================================
 // AbstractElectrometerClass::set_averagecontrol
 // ============================================================================
-void AbstractElectrometerClass::set_averagecontrol (std::string averCtrlStr) 
+void AbstractElectrometerClass::set_averagecontrol (std::string averCtrlStr)
 {
 	_electrometerProtocol->set_averagecontrol(averCtrlStr);
 }
@@ -383,7 +383,7 @@ void AbstractElectrometerClass::set_averagecontrol (std::string averCtrlStr)
 // ============================================================================
 // AbstractElectrometerClass::get_averagecontrol
 // ============================================================================
-std::string AbstractElectrometerClass::get_averagecontrol (void) 
+std::string AbstractElectrometerClass::get_averagecontrol (void)
 {
 	return _electrometerProtocol->get_averagecontrol( );
 }
@@ -391,7 +391,7 @@ std::string AbstractElectrometerClass::get_averagecontrol (void)
 // ============================================================================
 // AbstractElectrometerClass::clear_registers
 // ============================================================================
-void AbstractElectrometerClass::clear_registers (void) 
+void AbstractElectrometerClass::clear_registers (void)
 {
 	_electrometerProtocol->clear_registers();
 }
@@ -399,7 +399,7 @@ void AbstractElectrometerClass::clear_registers (void)
 // ============================================================================
 // AbstractElectrometerClass::averageStateON
 // ============================================================================
-void AbstractElectrometerClass::averageStateON (void) 
+void AbstractElectrometerClass::averageStateON (void)
 {
 	_electrometerProtocol->averageStateON();
 }
@@ -407,7 +407,7 @@ void AbstractElectrometerClass::averageStateON (void)
 // ============================================================================
 // AbstractElectrometerClass::averageStateOFF
 // ============================================================================
-void AbstractElectrometerClass::averageStateOFF (void) 
+void AbstractElectrometerClass::averageStateOFF (void)
 {
 	_electrometerProtocol->averageStateOFF();
 }
@@ -415,9 +415,9 @@ void AbstractElectrometerClass::averageStateOFF (void)
 // ============================================================================
 // AbstractElectrometerClass::get_value
 // ============================================================================
-std::string AbstractElectrometerClass::get_value (void) 
+std::string AbstractElectrometerClass::get_value (void)
 {
-	std::string argout("no data");
+	std::string argout("");
 	argout = _electrometerProtocol->get_value( );
 
 	return argout;
@@ -426,7 +426,7 @@ std::string AbstractElectrometerClass::get_value (void)
 // ============================================================================
 // AbstractElectrometerClass::get_integratedValue
 // ============================================================================
-std::vector<double> AbstractElectrometerClass::get_integratedValue (void) 
+std::vector<double> AbstractElectrometerClass::get_integratedValue (void)
 {
 	return _electrometerProtocol->get_integratedValue( );
 }
@@ -434,7 +434,7 @@ std::vector<double> AbstractElectrometerClass::get_integratedValue (void)
 // ============================================================================
 // AbstractElectrometerClass::get_fetchValue
 // ============================================================================
-std::vector<double> AbstractElectrometerClass::get_fetchValue (void) 
+std::vector<double> AbstractElectrometerClass::get_fetchValue (void)
 {
 	return _electrometerProtocol->get_fetchValue( );
 }
@@ -442,7 +442,7 @@ std::vector<double> AbstractElectrometerClass::get_fetchValue (void)
 // ============================================================================
 // AbstractElectrometerClass::reset
 // ============================================================================
-void AbstractElectrometerClass::reset (void) 
+void AbstractElectrometerClass::reset (void)
 {
 	_electrometerProtocol->reset( );
 }
@@ -450,7 +450,7 @@ void AbstractElectrometerClass::reset (void)
 // ============================================================================
 // AbstractElectrometerClass::local
 // ============================================================================
-void AbstractElectrometerClass::local (void) 
+void AbstractElectrometerClass::local (void)
 {
 	_electrometerProtocol->local( );
 }
@@ -458,7 +458,7 @@ void AbstractElectrometerClass::local (void)
 // ============================================================================
 // AbstractElectrometerClass::remote
 // ============================================================================
-void AbstractElectrometerClass::remote (void) 
+void AbstractElectrometerClass::remote (void)
 {
 	_electrometerProtocol->remote( );
 }
@@ -467,44 +467,44 @@ void AbstractElectrometerClass::remote (void)
 // AbstractElectrometerClass::get_ElectroMeterMode
 // ============================================================================
 std::string AbstractElectrometerClass::get_ElectroMeterMode (void)
-{ 
-	return _electrometerProtocol->get_mode( );	
+{
+	return _electrometerProtocol->get_mode( );
 }
 
 // ============================================================================
 // AbstractElectrometerClass::get_ElectroMeterRange
 // ============================================================================
 std::string AbstractElectrometerClass::get_ElectroMeterRange (void)
-{ 
-	return _electrometerProtocol->get_range( );	
+{
+	return _electrometerProtocol->get_range( );
 }
 
 // ============================================================================
 // AbstractElectrometerClass::get_overloadRangeState
 // ============================================================================
 bool AbstractElectrometerClass::get_overloadRangeState (void)
-{ 
-	return _electrometerProtocol->get_overloadRangeState( );	
+{
+	return _electrometerProtocol->get_overloadRangeState( );
 }
 
 // ============================================================================
 // AbstractElectrometerClass::get_configuration
 // ============================================================================
 std::string AbstractElectrometerClass::get_configuration (void)
-{ 
-	return _electrometerProtocol->get_DDC_configuration( );	
+{
+	return _electrometerProtocol->get_DDC_configuration( );
 }
 
 // ============================================================================
 // AbstractElectrometerClass::electrometer_status
 // ============================================================================
-std::string AbstractElectrometerClass::electrometer_status (void) 
+std::string AbstractElectrometerClass::electrometer_status (void)
 {
 	/**
 	*	This command is sent for SCPI devices only, so the SCPI State is updated here
 	*/
 	std::string argout("no data");
-	
+
 	try
 	{
 		argout = _electrometerProtocol->get_raw_status( );
@@ -526,10 +526,10 @@ std::string AbstractElectrometerClass::electrometer_status (void)
 // ============================================================================
 // AbstractElectrometerClass::set_buffer_size
 // ============================================================================
-void AbstractElectrometerClass::set_buffer_size (short ) 
+void AbstractElectrometerClass::set_buffer_size (short )
 {
   // force read of range on instrument to update _range variable
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
                       "This Keithley device does not support this command.",
                       "AbstractElectrometerClass::set_buffer_size( ).");
 
@@ -538,20 +538,20 @@ void AbstractElectrometerClass::set_buffer_size (short )
 // ============================================================================
 // AbstractElectrometerClass::get_buffer_size
 // ============================================================================
-short AbstractElectrometerClass::get_buffer_size () 
+short AbstractElectrometerClass::get_buffer_size ()
 {
   std::string size = _electrometerProtocol->get_buffer_size();
-  
+
   return XString<short>::convertFromString(size);
 }
 
 // ============================================================================
 // AbstractElectrometerClass::set_integrationTime
 // ============================================================================
-void AbstractElectrometerClass::set_integrationTime (double) 
+void AbstractElectrometerClass::set_integrationTime (double)
 {
   // force read of range on instrument to update _range variable
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
                       "This Keithley device does not support this command.",
                       "AbstractElectrometerClass::set_integrationTime( ).");
 
@@ -560,7 +560,7 @@ void AbstractElectrometerClass::set_integrationTime (double)
 // ============================================================================
 // AbstractElectrometerClass::clear_buffer
 // ============================================================================
-void AbstractElectrometerClass::clear_buffer (void) 
+void AbstractElectrometerClass::clear_buffer (void)
 {
   _electrometerProtocol->clear_buffer();
 }
@@ -568,7 +568,7 @@ void AbstractElectrometerClass::clear_buffer (void)
 // ============================================================================
 // AbstractElectrometerClass::store_raw_input
 // ============================================================================
-void AbstractElectrometerClass::store_raw_input (void) 
+void AbstractElectrometerClass::store_raw_input (void)
 {
   _electrometerProtocol->store_raw_input();
 }
@@ -576,7 +576,7 @@ void AbstractElectrometerClass::store_raw_input (void)
 // ============================================================================
 // AbstractElectrometerClass::start_storing
 // ============================================================================
-void AbstractElectrometerClass::start_storing (void) 
+void AbstractElectrometerClass::start_storing (void)
 {
   _electrometerProtocol->start_storing();
 }
@@ -584,7 +584,7 @@ void AbstractElectrometerClass::start_storing (void)
 // ============================================================================
 // AbstractElectrometerClass::enable_SRQBufferFull
 // ============================================================================
-void AbstractElectrometerClass::enable_SRQBufferFull (void) 
+void AbstractElectrometerClass::enable_SRQBufferFull (void)
 {
   _electrometerProtocol->enable_SRQBufferFull();
 }
@@ -592,7 +592,7 @@ void AbstractElectrometerClass::enable_SRQBufferFull (void)
 // ============================================================================
 // AbstractElectrometerClass::disable_SRQBufferFull
 // ============================================================================
-void AbstractElectrometerClass::disable_SRQBufferFull (void) 
+void AbstractElectrometerClass::disable_SRQBufferFull (void)
 {
   _electrometerProtocol->disable_SRQBufferFull();
 }
@@ -600,7 +600,7 @@ void AbstractElectrometerClass::disable_SRQBufferFull (void)
 // ============================================================================
 // AbstractElectrometerClass::SRQLineState
 // ============================================================================
-bool AbstractElectrometerClass::SRQLineState (void) 
+bool AbstractElectrometerClass::SRQLineState (void)
 {
   return _electrometerProtocol->SRQLineState();
 }
@@ -608,7 +608,7 @@ bool AbstractElectrometerClass::SRQLineState (void)
 // ============================================================================
 // AbstractElectrometerClass::readStatusByteRegister
 // ============================================================================
-short AbstractElectrometerClass::readStatusByteRegister (void) 
+short AbstractElectrometerClass::readStatusByteRegister (void)
 {
   return _electrometerProtocol->readStatusByteRegister();
 }
@@ -616,16 +616,16 @@ short AbstractElectrometerClass::readStatusByteRegister (void)
 // ============================================================================
 // AbstractElectrometerClass::MODE -> Ampere, Volt, Ohm, Coulomb and V on I meters
 // The general case is that following functions are not supported
-//	When supported by a particular electrometer, these methods must be defined in the 
+//	When supported by a particular electrometer, these methods must be defined in the
 // corresponding electrometer class
 // ============================================================================
 // ============================================================================
 // AbstractElectrometerClass::setAmperMeterMode
 // ============================================================================
-void AbstractElectrometerClass::setAmperMeterMode (void) 
+void AbstractElectrometerClass::setAmperMeterMode (void)
 {
 	_electrometerProtocol->setAmperMeterMode( );
-/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::setAmperMeterMode( ).");
 */}
@@ -633,10 +633,10 @@ void AbstractElectrometerClass::setAmperMeterMode (void)
 // ============================================================================
 // AbstractElectrometerClass::setVoltMeterMode
 // ============================================================================
-void AbstractElectrometerClass::setVoltMeterMode (void) 
+void AbstractElectrometerClass::setVoltMeterMode (void)
 {
 	_electrometerProtocol->setVoltMeterMode( );
-/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::setAmperMeterMode( ).");
 */}
@@ -644,10 +644,10 @@ void AbstractElectrometerClass::setVoltMeterMode (void)
 // ============================================================================
 // AbstractElectrometerClass::setOhmMeterMode
 // ============================================================================
-void AbstractElectrometerClass::setOhmMeterMode (void) 
+void AbstractElectrometerClass::setOhmMeterMode (void)
 {
 	_electrometerProtocol->setOhmMeterMode( );
-/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::setAmperMeterMode( ).");
 */}
@@ -656,10 +656,10 @@ void AbstractElectrometerClass::setOhmMeterMode (void)
 // ============================================================================
 // AbstractElectrometerClass::setCoulombMeterMode
 // ============================================================================
-void AbstractElectrometerClass::setCoulombMeterMode (void) 
+void AbstractElectrometerClass::setCoulombMeterMode (void)
 {
 	_electrometerProtocol->setCoulombMeterMode( );
-/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+/*	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::setAmperMeterMode( ).");
 */}
@@ -667,9 +667,9 @@ void AbstractElectrometerClass::setCoulombMeterMode (void)
 // ============================================================================
 // AbstractElectrometerClass::enable_VSourceOutput
 // ============================================================================
-void AbstractElectrometerClass::enable_VSourceOutput (void) 
+void AbstractElectrometerClass::enable_VSourceOutput (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::enable_VSourceOutput( ).");
 }
@@ -677,9 +677,9 @@ void AbstractElectrometerClass::enable_VSourceOutput (void)
 // ============================================================================
 // AbstractElectrometerClass::disable_VSourceOutput
 // ============================================================================
-void AbstractElectrometerClass::disable_VSourceOutput (void) 
+void AbstractElectrometerClass::disable_VSourceOutput (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::disable_VSourceOutput( ).");
 }
@@ -687,9 +687,9 @@ void AbstractElectrometerClass::disable_VSourceOutput (void)
 // ============================================================================
 // AbstractElectrometerClass::set_VSourceValue
 // ============================================================================
-void AbstractElectrometerClass::set_VSourceValue (double) 
+void AbstractElectrometerClass::set_VSourceValue (double)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::set_VSourceValue( ).");
 }
@@ -697,9 +697,9 @@ void AbstractElectrometerClass::set_VSourceValue (double)
 // ============================================================================
 // AbstractElectrometerClass::get_VSourceValue
 // ============================================================================
-double AbstractElectrometerClass::get_VSourceValue (void) 
+double AbstractElectrometerClass::get_VSourceValue (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"This Electrometer does not support this command.",
 											"AbstractElectrometerClass::get_VSourceValue( ).");
 }
@@ -707,7 +707,7 @@ double AbstractElectrometerClass::get_VSourceValue (void)
 // ============================================================================
 // AbstractElectrometerClass::get_ElectroMeterPolarity
 // ============================================================================
-std::string AbstractElectrometerClass::get_ElectroMeterPolarity (void) 
+std::string AbstractElectrometerClass::get_ElectroMeterPolarity (void)
 {
 	return _electrometerProtocol->get_polarity( );
 }
@@ -715,7 +715,7 @@ std::string AbstractElectrometerClass::get_ElectroMeterPolarity (void)
 // ============================================================================
 // AbstractElectrometerClass::get_ElectroMeterFrequency
 // ============================================================================
-std::string AbstractElectrometerClass::get_ElectroMeterFrequency (void) 
+std::string AbstractElectrometerClass::get_ElectroMeterFrequency (void)
 {
 	return _electrometerProtocol->get_frequency( );
 }
@@ -723,7 +723,7 @@ std::string AbstractElectrometerClass::get_ElectroMeterFrequency (void)
 // ============================================================================
 // AbstractElectrometerClass::get_ElectroMeterGain
 // ============================================================================
-std::string AbstractElectrometerClass::get_ElectroMeterGain (void) 
+std::string AbstractElectrometerClass::get_ElectroMeterGain (void)
 {
 	return _electrometerProtocol->get_gain( );
 }
@@ -731,7 +731,7 @@ std::string AbstractElectrometerClass::get_ElectroMeterGain (void)
 // ============================================================================
 // AbstractElectrometerClass::set_ElectroMeterRange
 // ============================================================================
-void AbstractElectrometerClass::set_ElectroMeterRange (std::string rang) 
+void AbstractElectrometerClass::set_ElectroMeterRange (std::string rang)
 {
 	_electrometerProtocol->set_range(rang);
 	std::cout << "\t AbstractElectrometerClass::set_ElectroMeterRange val = " << rang << std::endl;
@@ -740,7 +740,7 @@ void AbstractElectrometerClass::set_ElectroMeterRange (std::string rang)
 // ============================================================================
 // AbstractElectrometerClass::set_ElectroMeterPolarity
 // ============================================================================
-void AbstractElectrometerClass::set_ElectroMeterPolarity (std::string pola) 
+void AbstractElectrometerClass::set_ElectroMeterPolarity (std::string pola)
 {
 	_electrometerProtocol->set_polarity(pola);
 }
@@ -748,7 +748,7 @@ void AbstractElectrometerClass::set_ElectroMeterPolarity (std::string pola)
 // ============================================================================
 // AbstractElectrometerClass::set_ElectroMeterFrequency
 // ============================================================================
-void AbstractElectrometerClass::set_ElectroMeterFrequency (std::string freq) 
+void AbstractElectrometerClass::set_ElectroMeterFrequency (std::string freq)
 {
 	_electrometerProtocol->set_frequency(freq);
 }
@@ -756,7 +756,7 @@ void AbstractElectrometerClass::set_ElectroMeterFrequency (std::string freq)
 // ============================================================================
 // AbstractElectrometerClass::set_ElectroMeterGain
 // ============================================================================
-void AbstractElectrometerClass::set_ElectroMeterGain (std::string gain) 
+void AbstractElectrometerClass::set_ElectroMeterGain (std::string gain)
 {
 	_electrometerProtocol->set_gain(gain);
 }
@@ -764,7 +764,7 @@ void AbstractElectrometerClass::set_ElectroMeterGain (std::string gain)
 // ============================================================================
 // AbstractElectrometerClass::set_Zero_VonF_function
 // ============================================================================
-void AbstractElectrometerClass::set_Zero_VonF_function (void) 
+void AbstractElectrometerClass::set_Zero_VonF_function (void)
 {
 	_electrometerProtocol->unable_zeroVF_func( );
 }
@@ -772,7 +772,7 @@ void AbstractElectrometerClass::set_Zero_VonF_function (void)
 // ============================================================================
 // AbstractElectrometerClass::set_Offset_ZeroV1_function
 // ============================================================================
-void AbstractElectrometerClass::set_Offset_ZeroV1_function (void) 
+void AbstractElectrometerClass::set_Offset_ZeroV1_function (void)
 {
 	_electrometerProtocol->unable_offset_zeroV1_func( );
 }
@@ -780,7 +780,7 @@ void AbstractElectrometerClass::set_Offset_ZeroV1_function (void)
 // ============================================================================
 // AbstractElectrometerClass::set_Leakage_ZeroV2_function
 // ============================================================================
-void AbstractElectrometerClass::set_Leakage_ZeroV2_function (void) 
+void AbstractElectrometerClass::set_Leakage_ZeroV2_function (void)
 {
 	_electrometerProtocol->unable_leakage_zeroV2_func( );
 }
@@ -788,7 +788,7 @@ void AbstractElectrometerClass::set_Leakage_ZeroV2_function (void)
 // ============================================================================
 // AbstractElectrometerClass::set_Test_function
 // ============================================================================
-void AbstractElectrometerClass::set_Test_function (void) 
+void AbstractElectrometerClass::set_Test_function (void)
 {
 	_electrometerProtocol->unable_test_func( );
 }
@@ -796,7 +796,7 @@ void AbstractElectrometerClass::set_Test_function (void)
 // ============================================================================
 // AbstractElectrometerClass::set_Measure_function
 // ============================================================================
-void AbstractElectrometerClass::set_Measure_function (void) 
+void AbstractElectrometerClass::set_Measure_function (void)
 {
 	_electrometerProtocol->unable_measure_func( );
 }
@@ -804,7 +804,7 @@ void AbstractElectrometerClass::set_Measure_function (void)
 // ============================================================================
 // AbstractElectrometerClass::mcce_on
 // ============================================================================
-void AbstractElectrometerClass::mcce_on (void) 
+void AbstractElectrometerClass::mcce_on (void)
 {
 	_electrometerProtocol->switch_MCCE2_ON( );
 }
@@ -812,7 +812,7 @@ void AbstractElectrometerClass::mcce_on (void)
 // ============================================================================
 // AbstractElectrometerClass::mcce_off
 // ============================================================================
-void AbstractElectrometerClass::mcce_off (void) 
+void AbstractElectrometerClass::mcce_off (void)
 {
 	_electrometerProtocol->switch_MCCE2_OFF( );
 }
@@ -820,7 +820,7 @@ void AbstractElectrometerClass::mcce_off (void)
 // ============================================================================
 // AbstractElectrometerClass::mcce_init
 // ============================================================================
-void AbstractElectrometerClass::mcce_init (void) 
+void AbstractElectrometerClass::mcce_init (void)
 {
 	_electrometerProtocol->init_MCCE2_for_communication( );
 }
@@ -828,7 +828,7 @@ void AbstractElectrometerClass::mcce_init (void)
 // ============================================================================
 // AbstractElectrometerClass::set_ElectroChannel
 // ============================================================================
-void AbstractElectrometerClass::set_ElectroChannel (unsigned short address) 
+void AbstractElectrometerClass::set_ElectroChannel (unsigned short address)
 {
 	_electrometerProtocol->set_electrometer_active_channel(address);
 }
@@ -836,7 +836,7 @@ void AbstractElectrometerClass::set_ElectroChannel (unsigned short address)
 // ============================================================================
 // AbstractElectrometerClass::get_ElectroChannel
 // ============================================================================
-unsigned short AbstractElectrometerClass::get_ElectroChannel (void) 
+unsigned short AbstractElectrometerClass::get_ElectroChannel (void)
 {
 	return _electrometerProtocol->get_electrometer_active_channel();
 }
@@ -844,7 +844,7 @@ unsigned short AbstractElectrometerClass::get_ElectroChannel (void)
 // ============================================================================
 // AbstractElectrometerClass::save_configuration
 // ============================================================================
-void AbstractElectrometerClass::save_configuration (unsigned short memoryIdx) 
+void AbstractElectrometerClass::save_configuration (unsigned short memoryIdx)
 {
 	_electrometerProtocol->save_configuration(memoryIdx);
 }
@@ -852,7 +852,7 @@ void AbstractElectrometerClass::save_configuration (unsigned short memoryIdx)
 // ============================================================================
 // AbstractElectrometerClass::restore_configuration
 // ============================================================================
-void AbstractElectrometerClass::restore_configuration (unsigned short memoryIdx) 
+void AbstractElectrometerClass::restore_configuration (unsigned short memoryIdx)
 {
 	_electrometerProtocol->restore_configuration(memoryIdx);
 }
diff --git a/src/KeithleyDDCProtocol.cpp b/src/KeithleyDDCProtocol.cpp
index eeab0c2..d8884e2 100644
--- a/src/KeithleyDDCProtocol.cpp
+++ b/src/KeithleyDDCProtocol.cpp
@@ -41,7 +41,7 @@ KeithleyDDCProtocol::KeithleyDDCProtocol (std::string& gpib_device_name)
 KeithleyDDCProtocol::~KeithleyDDCProtocol (void)
 {
 	std::cout << "KeithleyDDCProtocol::~KeithleyDDCProtocol <-" << std::endl;
-	
+
   if(_communication_link)
 	{
 		delete _communication_link;
@@ -73,7 +73,7 @@ bool KeithleyDDCProtocol::build_communicationLink()
 // ============================================================================
 // KeithleyDDCProtocol::set_range
 // ============================================================================
-void KeithleyDDCProtocol::set_range (std::string value) 
+void KeithleyDDCProtocol::set_range (std::string value)
 {
 std::stringstream cmd_to_send;
 
@@ -86,9 +86,9 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::get_range
 // ============================================================================
-std::string KeithleyDDCProtocol::get_range (void) 
+std::string KeithleyDDCProtocol::get_range (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"For DDC Keithley type, please check the status.",
 											"KeithleyDDCProtocol::get_range( ).");
 }
@@ -96,7 +96,7 @@ std::string KeithleyDDCProtocol::get_range (void)
 // ============================================================================
 // KeithleyDDCProtocol::zero_check_on
 // ============================================================================
-void KeithleyDDCProtocol::zero_check_on (void) 
+void KeithleyDDCProtocol::zero_check_on (void)
 {
 std::stringstream cmd_to_send;
 
@@ -108,7 +108,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::zero_check_off
 // ============================================================================
-void KeithleyDDCProtocol::zero_check_off (void) 
+void KeithleyDDCProtocol::zero_check_off (void)
 {
 std::stringstream cmd_to_send;
 
@@ -121,7 +121,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::zero_correct_on
 // ============================================================================
-void KeithleyDDCProtocol::zero_correct_on (void) 
+void KeithleyDDCProtocol::zero_correct_on (void)
 {
 std::stringstream cmd_to_send;
 
@@ -134,7 +134,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::zero_correct_off
 // ============================================================================
-void KeithleyDDCProtocol::zero_correct_off (void) 
+void KeithleyDDCProtocol::zero_correct_off (void)
 {
 std::stringstream cmd_to_send;
 
@@ -147,9 +147,9 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::auto_zero_on
 // ============================================================================
-void KeithleyDDCProtocol::auto_zero_on (void) 
+void KeithleyDDCProtocol::auto_zero_on (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"DDC Keithley does not support this command.",
 											"KeithleyDDCProtocol::auto_zero_on( ).");
 
@@ -158,9 +158,9 @@ void KeithleyDDCProtocol::auto_zero_on (void)
 // ============================================================================
 // KeithleyDDCProtocol::auto_zero_off
 // ============================================================================
-void KeithleyDDCProtocol::auto_zero_off (void) 
+void KeithleyDDCProtocol::auto_zero_off (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"DDC Keithley does not support this command.",
 											"KeithleyDDCProtocol::auto_zero_off( ).");
 
@@ -169,7 +169,7 @@ void KeithleyDDCProtocol::auto_zero_off (void)
 // ============================================================================
 // KeithleyDDCProtocol::autoRange_ON
 // ============================================================================
-void KeithleyDDCProtocol::autoRange_on (void) 
+void KeithleyDDCProtocol::autoRange_on (void)
 {
 std::stringstream cmd_to_send;
 
@@ -180,9 +180,9 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::autoRange_OFF
 // ============================================================================
-void KeithleyDDCProtocol::autoRange_off (void) 
+void KeithleyDDCProtocol::autoRange_off (void)
 {
-	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED", 
+	throw electrometer::ElectrometerException("COMMAND_NOT_SUPPORTED",
 											"DDC Keithley does not support this command.",
 											"KeithleyDDCProtocol::autoRange_off( ).");
 }
@@ -190,7 +190,7 @@ void KeithleyDDCProtocol::autoRange_off (void)
 // ============================================================================
 // KeithleyDDCProtocol::autoRange_OFF for Keithley 486 & 487
 // ============================================================================
-void KeithleyDDCProtocol::autoRange_OFF_forK486_487 (void) 
+void KeithleyDDCProtocol::autoRange_OFF_forK486_487 (void)
 {
 std::stringstream cmd_to_send;
 
@@ -202,7 +202,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::autoRange_OFF for Keithley 617 & 6512
 // ============================================================================
-void KeithleyDDCProtocol::autoRange_OFF_forK617_6512 (void) 
+void KeithleyDDCProtocol::autoRange_OFF_forK617_6512 (void)
 {
 std::stringstream cmd_to_send;
 
@@ -217,7 +217,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::setAmperMeterMode (617 & 6512 Keithley DDC models
 // ============================================================================
-void KeithleyDDCProtocol::setAmperMeterMode (void) 
+void KeithleyDDCProtocol::setAmperMeterMode (void)
 {
 std::stringstream cmd_to_send;
 
@@ -232,7 +232,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::setAmperMeterMode (487 Keithley DDC model
 // ============================================================================
-void KeithleyDDCProtocol::setAmperMeterMode_forK487 (void) 
+void KeithleyDDCProtocol::setAmperMeterMode_forK487 (void)
 {
 std::stringstream cmd_to_send;
 
@@ -247,7 +247,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::setVoltMeterMode (617 & 6512 Keithley DDC models
 // ============================================================================
-void KeithleyDDCProtocol::setVoltMeterMode (void) 
+void KeithleyDDCProtocol::setVoltMeterMode (void)
 {
 std::stringstream cmd_to_send;
 
@@ -263,7 +263,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::setOhmMeterMode (617 & 6512 Keithley DDC models
 // ============================================================================
-void KeithleyDDCProtocol::setOhmMeterMode (void) 
+void KeithleyDDCProtocol::setOhmMeterMode (void)
 {
 std::stringstream cmd_to_send;
 
@@ -279,7 +279,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::setCoulombMeterMode (617 & 6512 Keithley DDC models
 // ============================================================================
-void KeithleyDDCProtocol::setCoulombMeterMode (void) 
+void KeithleyDDCProtocol::setCoulombMeterMode (void)
 {
 std::stringstream cmd_to_send;
 
@@ -294,7 +294,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::get_value
 // ============================================================================
-std::string KeithleyDDCProtocol::get_value (void) 
+std::string KeithleyDDCProtocol::get_value (void)
 {
 std::stringstream cmd_to_send;
 std::string argout("no data");
@@ -303,7 +303,7 @@ std::string argout("no data");
   cmd_to_send << "X" << std::ends;
   _communication_link->write(cmd_to_send.str());
   argout = _communication_link->read();
- 
+
   //- check if device range is overloaded : First char of the prefix !
   if(argout[0] == 'O') //- O means overload !
     _is_overloaded = true;
@@ -318,7 +318,7 @@ std::string argout("no data");
 // ============================================================================
 // KeithleyDDCProtocol::get_integratedValue
 // ============================================================================
-std::vector<double> KeithleyDDCProtocol::get_integratedValue (void) 
+std::vector<double> KeithleyDDCProtocol::get_integratedValue (void)
 {
 std::string tmp("");
 
@@ -332,7 +332,7 @@ std::string tmp("");
 // ============================================================================
 // KeithleyDDCProtocol::get_fetchValue
 // ============================================================================
-std::vector<double> KeithleyDDCProtocol::get_fetchValue (void) 
+std::vector<double> KeithleyDDCProtocol::get_fetchValue (void)
 {
 std::string tmp("");
 
@@ -356,7 +356,7 @@ std::vector<double> argout;
 std::string::size_type posBeg;
 std::string::size_type posEnd;
 
-	//- 
+	//-
 	posBeg = 0;
 	posEnd = datalist.find(',', posBeg);
 
@@ -390,10 +390,10 @@ std::string::size_type posEnd;
 // ============================================================================
 // KeithleyDDCProtocol::reset
 // ============================================================================
-void KeithleyDDCProtocol::reset (void) 
+void KeithleyDDCProtocol::reset (void)
 {
 std::stringstream cmd_to_send;
-	
+
 	//- send command to return to default conditions !!
 	cmd_to_send << "*RST" << std::ends;
 	_communication_link->write(cmd_to_send.str());
@@ -402,7 +402,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::get_raw_status
 // ============================================================================
-std::string KeithleyDDCProtocol::get_raw_status (void) 
+std::string KeithleyDDCProtocol::get_raw_status (void)
 {
 std::stringstream cmd_to_send;
 std::string argout("no data");
@@ -420,7 +420,7 @@ std::string argout("no data");
 // ============================================================================
 // KeithleyDDCProtocol::get_DDC_configuration
 // ============================================================================
-std::string KeithleyDDCProtocol::get_DDC_configuration (void) 
+std::string KeithleyDDCProtocol::get_DDC_configuration (void)
 {
 std::stringstream cmd_to_send;
 std::string argout("no data");
@@ -437,10 +437,10 @@ std::string argout("no data");
 // ============================================================================
 // KeithleyDDCProtocol::clear_registers
 // ============================================================================
-void KeithleyDDCProtocol::clear_registers (void) 
+void KeithleyDDCProtocol::clear_registers (void)
 {
 std::stringstream cmd_to_send;
-	
+
 	//- send command
 	cmd_to_send << "*CLS" << std::ends;
 	_communication_link->write(cmd_to_send.str());
@@ -450,7 +450,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::set_buffer_size()
 // ============================================================================
-void KeithleyDDCProtocol::set_buffer_size (std::string cmd) 
+void KeithleyDDCProtocol::set_buffer_size (std::string cmd)
 {
 	//- send command
 	_communication_link->write(cmd);
@@ -459,7 +459,7 @@ void KeithleyDDCProtocol::set_buffer_size (std::string cmd)
 // ============================================================================
 // KeithleyDDCProtocol::set_triggerMode()
 // ============================================================================
-void KeithleyDDCProtocol::set_triggerMode (std::string cmd) 
+void KeithleyDDCProtocol::set_triggerMode (std::string cmd)
 {
 	//- send command
 	_communication_link->write(cmd);
@@ -468,7 +468,7 @@ void KeithleyDDCProtocol::set_triggerMode (std::string cmd)
 // ============================================================================
 // KeithleyDDCProtocol::enable_SRQBufferFull()
 // ============================================================================
-void KeithleyDDCProtocol::enable_SRQBufferFull (void) 
+void KeithleyDDCProtocol::enable_SRQBufferFull (void)
 {
   std::string cmd_to_send("M2X");
 
@@ -480,7 +480,7 @@ void KeithleyDDCProtocol::enable_SRQBufferFull (void)
 // ============================================================================
 // KeithleyDDCProtocol::disable_SRQBufferFull()
 // ============================================================================
-void KeithleyDDCProtocol::disable_SRQBufferFull (void) 
+void KeithleyDDCProtocol::disable_SRQBufferFull (void)
 {
 std::string cmd_to_send("M0X");
 
@@ -492,7 +492,7 @@ std::string cmd_to_send("M0X");
 // ============================================================================
 // KeithleyDDCProtocol::SRQLineState()
 // ============================================================================
-bool KeithleyDDCProtocol::SRQLineState (void) 
+bool KeithleyDDCProtocol::SRQLineState (void)
 {
 	//- if asserted -> the programmed event occurs : the device can be asked !
 	return _communication_link->SRQLineState();
@@ -501,7 +501,7 @@ bool KeithleyDDCProtocol::SRQLineState (void)
 // ============================================================================
 // KeithleyDDCProtocol::readStatusByteRegister()
 // ============================================================================
-short KeithleyDDCProtocol::readStatusByteRegister (void) 
+short KeithleyDDCProtocol::readStatusByteRegister (void)
 {
 	//- if asserted -> the programmed event occurs : the device can be asked !
 	return _communication_link->readStatusByteRegister();
@@ -510,7 +510,7 @@ short KeithleyDDCProtocol::readStatusByteRegister (void)
 // ============================================================================
 // KeithleyDDCProtocol::set_conversionRate()
 // ============================================================================
-void KeithleyDDCProtocol::set_conversionRate (void) 
+void KeithleyDDCProtocol::set_conversionRate (void)
 {
 std::string cmd_to_send("Q0X");
 
@@ -521,7 +521,7 @@ std::string cmd_to_send("Q0X");
 // ============================================================================
 // KeithleyDDCProtocol::enable_readingWithPrefix()
 // ============================================================================
-void KeithleyDDCProtocol::enable_readingWithPrefix (void) 
+void KeithleyDDCProtocol::enable_readingWithPrefix (void)
 {
 std::string cmd_to_send("G0X");
 
@@ -532,7 +532,7 @@ std::string cmd_to_send("G0X");
 // ============================================================================
 // KeithleyDDCProtocol::disable_readingWithPrefix()
 // ============================================================================
-void KeithleyDDCProtocol::disable_readingWithPrefix (void) 
+void KeithleyDDCProtocol::disable_readingWithPrefix (void)
 {
 std::string cmd_to_send("G1X");
 
@@ -543,7 +543,7 @@ std::string cmd_to_send("G1X");
 // ============================================================================
 // KeithleyDDCProtocol::enable_ReadingsFromElectrometer() -> disable storing mode
 // ============================================================================
-void KeithleyDDCProtocol::enable_ReadingsFromElectrometer (void) 
+void KeithleyDDCProtocol::enable_ReadingsFromElectrometer (void)
 {
 std::string cmd_to_send("B0X");
 
@@ -555,7 +555,7 @@ std::string cmd_to_send("B0X");
 // ============================================================================
 // KeithleyDDCProtocol::enable_readingsFromBuffer_K617_6512()
 // ============================================================================
-void KeithleyDDCProtocol::enable_readingsFromBuffer_K617_6512 (void) 
+void KeithleyDDCProtocol::enable_readingsFromBuffer_K617_6512 (void)
 {
 std::string cmd_to_send("B1X");
 
@@ -566,7 +566,7 @@ std::string cmd_to_send("B1X");
 // ============================================================================
 // KeithleyDDCProtocol::enable_readingsFromBuffer_K486_487()
 // ============================================================================
-void KeithleyDDCProtocol::enable_readingsFromBuffer_K486_487 (void) 
+void KeithleyDDCProtocol::enable_readingsFromBuffer_K486_487 (void)
 {
 std::string cmd_to_send("B2X");
 
@@ -577,10 +577,10 @@ std::string cmd_to_send("B2X");
 // ============================================================================
 // KeithleyDDCProtocol::enable_integrationPeriod()
 // ============================================================================
-void KeithleyDDCProtocol::enable_integrationPeriod (void) 
+void KeithleyDDCProtocol::enable_integrationPeriod (void)
 {
 std::string cmd_to_send("S1X");
-  
+
   //-
 	//- send command : this command is only for k_486 or K_487
   //- S1 is for : "Line cycle integration period (5-I /2d resolution)"
@@ -591,7 +591,7 @@ std::string cmd_to_send("S1X");
 /*// ============================================================================
 // KeithleyDDCProtocol::init_keithley to perform reading(s) data
 // ============================================================================
-void KeithleyDDCProtocol::init_keithley (void) 
+void KeithleyDDCProtocol::init_keithley (void)
 {
   //- Set default conversion rate (internal keithley device conversion rate)
   this->set_conversionRate();
@@ -604,13 +604,13 @@ void KeithleyDDCProtocol::init_keithley (void)
 	_communication_link->write(cmd_to_send);
 }
 
-// Following functions are part of commands supported via the DDC protocol. 
+// Following functions are part of commands supported via the DDC protocol.
 // We may have to implement them after first tests on beamlines
 
 // ============================================================================
 // KeithleyDDCProtocol::setExternalFeedbackMeterMode (617 & 6512 Keithley DDC models
 // ============================================================================
-void KeithleyDDCProtocol::setExternalFeedbackMeterMode (void) 
+void KeithleyDDCProtocol::setExternalFeedbackMeterMode (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 std::stringstream cmd_to_send;
@@ -624,7 +624,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::setVonIMeterMode (only 617 Keithley DDC model
 // ============================================================================
-void KeithleyDDCProtocol::setVonIMeterMode (void) 
+void KeithleyDDCProtocol::setVonIMeterMode (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 std::stringstream cmd_to_send;
@@ -638,7 +638,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleyDDCProtocol::setVonIMeterMode (only 487 Keithley DDC model
 // ============================================================================
-void KeithleyDDCProtocol::setVonIMeterMode_forK487 (void) 
+void KeithleyDDCProtocol::setVonIMeterMode_forK487 (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 std::stringstream cmd_to_send;
@@ -649,12 +649,12 @@ std::stringstream cmd_to_send;
 
 }
 
- ...  TO BE IMPLEMENTED !!!!! 
+ ...  TO BE IMPLEMENTED !!!!!
 
 // ============================================================================
 // KeithleyDDCProtocol::reading_source
 // ============================================================================
-void KeithleyDDCProtocol::reading_source (void) 
+void KeithleyDDCProtocol::reading_source (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 
@@ -663,7 +663,7 @@ void KeithleyDDCProtocol::reading_source (void)
 // ============================================================================
 // KeithleyDDCProtocol::reading_source
 // ============================================================================
-void KeithleyDDCProtocol::data_store (void) 
+void KeithleyDDCProtocol::data_store (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 
@@ -672,7 +672,7 @@ void KeithleyDDCProtocol::data_store (void)
 // ============================================================================
 // KeithleyDDCProtocol::reading_source
 // ============================================================================
-void KeithleyDDCProtocol::data_format (void) 
+void KeithleyDDCProtocol::data_format (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 
@@ -681,7 +681,7 @@ void KeithleyDDCProtocol::data_format (void)
 // ============================================================================
 // KeithleyDDCProtocol::reading_source
 // ============================================================================
-void KeithleyDDCProtocol::baseline_suppression_ON (void) 
+void KeithleyDDCProtocol::baseline_suppression_ON (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 
@@ -690,7 +690,7 @@ void KeithleyDDCProtocol::baseline_suppression_ON (void)
 // ============================================================================
 // KeithleyDDCProtocol::reading_source
 // ============================================================================
-void KeithleyDDCProtocol::baseline_suppression_OFF (void) 
+void KeithleyDDCProtocol::baseline_suppression_OFF (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 
@@ -698,7 +698,7 @@ void KeithleyDDCProtocol::baseline_suppression_OFF (void)
 // ============================================================================
 // KeithleyDDCProtocol::reading_source
 // ============================================================================
-void KeithleyDDCProtocol::keithley_status (void) 
+void KeithleyDDCProtocol::keithley_status (void)
 		throw (electrometer::ElectrometerException, Tango::DevFailed)
 {
 
diff --git a/src/KeithleySCPIProtocol.cpp b/src/KeithleySCPIProtocol.cpp
index 34e903f..573f996 100644
--- a/src/KeithleySCPIProtocol.cpp
+++ b/src/KeithleySCPIProtocol.cpp
@@ -111,7 +111,7 @@ bool KeithleySCPIProtocol::build_communicationLink()
 // ============================================================================
 // KeithleySCPIProtocol::set_range
 // ============================================================================
-void KeithleySCPIProtocol::set_range (std::string value) 
+void KeithleySCPIProtocol::set_range (std::string value)
 {
 std::string cmd_to_send("");
 std::string tmpMode;
@@ -119,17 +119,17 @@ std::string tmpMode;
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_range()");
 	}
-	
+
 	//- get electrometer mode
 	tmpMode = get_mode( );
 
 	//- erase bad caracters
 	tmpMode.erase(tmpMode.find("\n") );
-	
+
 	//- send command to Keithley device
 	cmd_to_send = tmpMode + ":RANGe " + value ;
 	_communication_link->write(cmd_to_send);
@@ -138,18 +138,18 @@ std::string tmpMode;
 // ============================================================================
 // KeithleySCPIProtocol::zero_check_on
 // ============================================================================
-void KeithleySCPIProtocol::zero_check_on (void) 
+void KeithleySCPIProtocol::zero_check_on (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::zero_check_on()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:ZCH ON" ;
 	_communication_link->write(cmd_to_send);
@@ -158,18 +158,18 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::zero_check_off
 // ============================================================================
-void KeithleySCPIProtocol::zero_check_off (void) 
+void KeithleySCPIProtocol::zero_check_off (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::zero_check_off()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:ZCH OFF";
 	_communication_link->write(cmd_to_send);
@@ -179,18 +179,18 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::zero_correct_on
 // ============================================================================
-void KeithleySCPIProtocol::zero_correct_on (void) 
+void KeithleySCPIProtocol::zero_correct_on (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::zero_correct_on()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:ZCOR ON" ;
 	_communication_link->write(cmd_to_send);
@@ -200,18 +200,18 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::zero_correct_off
 // ============================================================================
-void KeithleySCPIProtocol::zero_correct_off (void) 
+void KeithleySCPIProtocol::zero_correct_off (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::zero_correct_off()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:ZCOR OFF" ;
 	_communication_link->write(cmd_to_send);
@@ -221,18 +221,18 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::zero_correct_state_on
 // ============================================================================
-void KeithleySCPIProtocol::zero_correct_state_on (void) 
+void KeithleySCPIProtocol::zero_correct_state_on (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::zero_correct_state_on()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:ZCOR:STAT ON" ;
 	_communication_link->write(cmd_to_send);
@@ -242,18 +242,18 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::zero_correct_state_off
 // ============================================================================
-void KeithleySCPIProtocol::zero_correct_state_off (void) 
+void KeithleySCPIProtocol::zero_correct_state_off (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::zero_correct_state_off()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:ZCOR:STAT OFF" ;
 	_communication_link->write(cmd_to_send);
@@ -263,19 +263,19 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::autoRange_ON
 // ============================================================================
-void KeithleySCPIProtocol::autoRange_on (void) 
+void KeithleySCPIProtocol::autoRange_on (void)
 {
 std::string cmd_to_send("");
 std::string tmpMode;
-	
+
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::autoRange_ON()");
 	}
-	
+
 	//- get electrometer mode
 	tmpMode = get_mode( );
 
@@ -290,19 +290,19 @@ std::string tmpMode;
 // ============================================================================
 // KeithleySCPIProtocol::autoRange_OFF
 // ============================================================================
-void KeithleySCPIProtocol::autoRange_off (void) 
+void KeithleySCPIProtocol::autoRange_off (void)
 {
 std::string cmd_to_send("");
 std::string tmpMode;
-	
+
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::autoRange_off()");
 	}
-	
+
 	//- get electrometer mode
 	tmpMode = get_mode( );
 
@@ -318,18 +318,18 @@ std::string tmpMode;
 // ============================================================================
 // KeithleySCPIProtocol::auto_zero_on
 // ============================================================================
-void KeithleySCPIProtocol::auto_zero_on (void) 
+void KeithleySCPIProtocol::auto_zero_on (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::auto_zero_on()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:AZER ON" ;
 	_communication_link->write(cmd_to_send);
@@ -338,18 +338,18 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::auto_zero_off
 // ============================================================================
-void KeithleySCPIProtocol::auto_zero_off (void) 
+void KeithleySCPIProtocol::auto_zero_off (void)
 {
 std::string cmd_to_send("");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::auto_zero_off()");
 	}
-	
+
 	//- send command
 	cmd_to_send = "SYST:AZER OFF" ;
 	_communication_link->write(cmd_to_send);
@@ -361,7 +361,7 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::setAmperMeterMode
 // ============================================================================
-void KeithleySCPIProtocol::setAmperMeterMode (void) 
+void KeithleySCPIProtocol::setAmperMeterMode (void)
 {
 std::stringstream cmd_to_send;
 std::string mode ("");
@@ -369,11 +369,11 @@ std::string mode ("");
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::setAmperMeterMode()");
 	}
-	
+
 	//- mode current (send CURR)
 	mode = "CURRent";
 
@@ -386,7 +386,7 @@ std::string mode ("");
 // ============================================================================
 // KeithleySCPIProtocol::setVoltMeterMode
 // ============================================================================
-void KeithleySCPIProtocol::setVoltMeterMode (void) 
+void KeithleySCPIProtocol::setVoltMeterMode (void)
 {
 std::stringstream cmd_to_send;
 std::string mode ("");
@@ -394,11 +394,11 @@ std::string mode ("");
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::setVoltMeterMode()");
 	}
-	
+
 	//- mode volt
 	mode = "VOLTage";
 
@@ -410,7 +410,7 @@ std::string mode ("");
 // ============================================================================
 // KeithleySCPIProtocol::setOhmMeterMode
 // ============================================================================
-void KeithleySCPIProtocol::setOhmMeterMode (void) 
+void KeithleySCPIProtocol::setOhmMeterMode (void)
 {
 std::stringstream cmd_to_send;
 std::string mode ("");
@@ -418,11 +418,11 @@ std::string mode ("");
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::setOhmMeterMode()");
 	}
-	
+
 	//- mode ohm
 	mode = "RESistance";
 
@@ -435,7 +435,7 @@ std::string mode ("");
 // ============================================================================
 // KeithleySCPIProtocol::setCoulombMeterMode
 // ============================================================================
-void KeithleySCPIProtocol::setCoulombMeterMode (void) 
+void KeithleySCPIProtocol::setCoulombMeterMode (void)
 {
 std::stringstream cmd_to_send;
 std::string mode ("");
@@ -443,11 +443,11 @@ std::string mode ("");
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::setCoulombMeterMode()");
 	}
-	
+
 	//- mode coulomb
 	mode = "CHARge";
 
@@ -460,16 +460,16 @@ std::string mode ("");
 // ============================================================================
 // KeithleySCPIProtocol::setVSourceOutputON
 // ============================================================================
-void KeithleySCPIProtocol::setVSourceOutputON (void) 
+void KeithleySCPIProtocol::setVSourceOutputON (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::setVSourceOutputON()");
 	}
-	
+
 std::string cmd_to_send ("OUTP 1");
 
 	//- send command
@@ -479,16 +479,16 @@ std::string cmd_to_send ("OUTP 1");
 // ============================================================================
 // KeithleySCPIProtocol::setVSourceOutputOFF
 // ============================================================================
-void KeithleySCPIProtocol::setVSourceOutputOFF (void) 
+void KeithleySCPIProtocol::setVSourceOutputOFF (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::setVSourceOutputOFF()");
 	}
-	
+
 std::string cmd_to_send ("OUTP 1");
 	//- send command
 	_communication_link->write(cmd_to_send);
@@ -497,16 +497,16 @@ std::string cmd_to_send ("OUTP 1");
 // ============================================================================
 // KeithleySCPIProtocol::setVSourceValue
 // ============================================================================
-void KeithleySCPIProtocol::setVSourceValue (double voltsValue) 
+void KeithleySCPIProtocol::setVSourceValue (double voltsValue)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::setVSourceValue()");
 	}
-	
+
 std::stringstream cmd_to_send;
 	//- send command
   cmd_to_send << "SOUR:VOLT " << voltsValue << std::endl;
@@ -516,16 +516,16 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleySCPIProtocol::getVSourceValue
 // ============================================================================
-std::string KeithleySCPIProtocol::getVSourceValue (void) 
+std::string KeithleySCPIProtocol::getVSourceValue (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::getVSourceValue()");
 	}
-	
+
 std::string cmd_to_send("SOUR:VOLT?");
 	//- send command
 	return _communication_link->write_read(cmd_to_send);
@@ -534,16 +534,16 @@ std::string cmd_to_send("SOUR:VOLT?");
 // ============================================================================
 // KeithleySCPIProtocol::get_mode
 // ============================================================================
-std::string KeithleySCPIProtocol::get_mode (void) 
+std::string KeithleySCPIProtocol::get_mode (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_mode()");
 	}
-	
+
 std::string cmd_to_send("");
 	//- get electrometer mode
 	if(isDiffSuportedMode)
@@ -564,34 +564,34 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::get_range
 // ============================================================================
-std::string KeithleySCPIProtocol::get_range (void) 
+std::string KeithleySCPIProtocol::get_range (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_range()");
 	}
-	
+
 std::string cmd_to_send("");
 	//- get electrometer mode
 	std::string tmpMode = get_mode( );
 
 	//- erase bad caracters
 	tmpMode.erase(tmpMode.find("\n") );
-	
+
 	//- send command
 	cmd_to_send = tmpMode + ":RANGe?" ;
 	std::string _rangeStr = _communication_link->write_read(cmd_to_send);
-	
+
 	return _rangeStr;
 }
 
 // ============================================================================
 // KeithleySCPIProtocol::get_value
 // ============================================================================
-std::string KeithleySCPIProtocol::get_value (void) 
+std::string KeithleySCPIProtocol::get_value (void)
 {
 std::string cmd_to_send("");
 std::string tmp("");
@@ -599,14 +599,14 @@ std::string tmp("");
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_value()");
 	}
-	
+
 	////- This command performs a CONFIGURE and a READ?
 	//cmd_to_send = "MEAS?" ;
-	
+
 	//- This command performs an INIT and then query the updated value
     cmd_to_send = "READ?" ;
 
@@ -619,7 +619,7 @@ std::string tmp("");
 // ============================================================================
 // KeithleySCPIProtocol::get_integratedValue
 // ============================================================================
-std::vector<double> KeithleySCPIProtocol::get_integratedValue (void) 
+std::vector<double> KeithleySCPIProtocol::get_integratedValue (void)
 {
 std::string cmd_to_send("");
 std::string tmp("");
@@ -627,11 +627,11 @@ std::string tmp("");
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_integratedValue()");
 	}
-	
+
 	//- This command performs an INIT and then query the bufferised values
 	cmd_to_send = "TRAC:DATA?" ;
 	tmp = _communication_link->write_read(cmd_to_send);
@@ -643,7 +643,7 @@ std::string tmp("");
 // ============================================================================
 // KeithleySCPIProtocol::get_fetchValue
 // ============================================================================
-std::vector<double> KeithleySCPIProtocol::get_fetchValue (void) 
+std::vector<double> KeithleySCPIProtocol::get_fetchValue (void)
 {
 std::string cmd_to_send("");
 std::string tmp("");
@@ -651,11 +651,11 @@ std::string tmp("");
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_fetchValue()");
 	}
-	
+
 	//- This command queries the last value(s)
 	cmd_to_send = "FETCh?" ;
 	tmp = _communication_link->write_read(cmd_to_send);
@@ -677,18 +677,18 @@ std::vector<double> argout;
 std::string::size_type posBeg;
 std::string::size_type posEnd;
 short numberOfData = 0;
-	//- 
+	//-
 	posBeg = 0;
 	posEnd = datalist.find(',', posBeg);
 
-//-DEBUG 
+//-DEBUG
 std::cout << "\t*****::buildDataList -> argin :\n$" << datalist << "$" << std::endl;
-  
+
 	//- there is just one value
   if(posEnd == std::string::npos)
   {
 		  argout.push_back( XString<double>::convertFromString(datalist) );
-//-DEBUG 
+//-DEBUG
 std::cout << "\t*****::buildDataList -> JUST ONE DATA :$" << datalist << "$" << std::endl;
   }
   else
@@ -701,7 +701,7 @@ std::cout << "\t*****::buildDataList -> JUST ONE DATA :$" << datalist << "$" <<
     {
 		  dataStr = datalist.substr(posBeg,posEnd);
 		  argout.push_back( XString<double>::convertFromString(dataStr) );
-//-DEBUG 
+//-DEBUG
 std::cout << "\t*****::buildDataList -> FULL OF DATA : " << i << " -> $" << argout[i] << "$" << std::endl;
       posBeg = posEnd+1;
 		  posEnd = datalist.find(',', posBeg);
@@ -722,12 +722,12 @@ std::cout << "\t*****::buildDataList -> FULL OF DATA : " << i << " -> $" << argo
 // ============================================================================
 // KeithleySCPIProtocol::init_keithley to perform reading(s) data
 // ============================================================================
-void KeithleySCPIProtocol::init_keithley (void) 
+void KeithleySCPIProtocol::init_keithley (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::init_keithley()");
 	}
@@ -746,16 +746,16 @@ std::string cmd_to_send("INIT");
 // ============================================================================
 // KeithleySCPIProtocol::abort -> cancel all operations started by INIT command
 // ============================================================================
-void KeithleySCPIProtocol::abort (void) 
+void KeithleySCPIProtocol::abort (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::abort()");
 	}
-	
+
 std::string cmd_to_send("ABORt");
 	//- send command : ABORt to cancel all operations
 	_communication_link->write(cmd_to_send);
@@ -764,22 +764,22 @@ std::string cmd_to_send("ABORt");
 // ============================================================================
 // KeithleySCPIProtocol::set_knplc : specify the integration rate
 // ============================================================================
-void KeithleySCPIProtocol::set_knplc (std::string nbNPLC) 
+void KeithleySCPIProtocol::set_knplc (std::string nbNPLC)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_knplc()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode();
 
 	//- erase bad caracters
 	tmpMode.erase(tmpMode.find("\n") );
-	
+
 std::string cmd_to_send("");
 	//- send command
 	cmd_to_send = tmpMode + ":NPLC " + nbNPLC ;
@@ -789,22 +789,22 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::get_knplc : get the integration rate
 // ============================================================================
-std::string KeithleySCPIProtocol::get_knplc (void) 
+std::string KeithleySCPIProtocol::get_knplc (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_knplc()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode();
 
 	//- erase bad caracters
 	tmpMode.erase( tmpMode.find("\n") );
-	
+
 std::string cmd_to_send("");
 	//- send command
 	cmd_to_send = tmpMode + ":NPLCycles?" ;
@@ -814,16 +814,16 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::set_triggercount
 // ============================================================================
-void KeithleySCPIProtocol::set_triggercount (std::string nbTrigCount) 
+void KeithleySCPIProtocol::set_triggercount (std::string nbTrigCount)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_triggercount()");
 	}
-	
+
 std::string cmd_to_send("");
 	//- send command
 	cmd_to_send = "TRIG:COUN " + nbTrigCount ;
@@ -836,16 +836,16 @@ std::string cmd_to_send("");
 // ============================================================================
 // KeithleySCPIProtocol::get_triggercount
 // ============================================================================
-std::string KeithleySCPIProtocol::get_triggercount (void) 
+std::string KeithleySCPIProtocol::get_triggercount (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_triggercount()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send("TRIG:COUNt?");
 	std::string response  = _communication_link->write_read(cmd_to_send);
@@ -856,16 +856,16 @@ std::string KeithleySCPIProtocol::get_triggercount (void)
 // ============================================================================
 // KeithleySCPIProtocol::set_triggerdelay
 // ============================================================================
-void KeithleySCPIProtocol::set_triggerdelay (std::string trigDelay) 
+void KeithleySCPIProtocol::set_triggerdelay (std::string trigDelay)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_triggerdelay()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "TRIG:DEL " + trigDelay ;
 	_communication_link->write(cmd_to_send);
@@ -874,16 +874,16 @@ void KeithleySCPIProtocol::set_triggerdelay (std::string trigDelay)
 // ============================================================================
 // KeithleySCPIProtocol::get_triggerdelay
 // ============================================================================
-std::string KeithleySCPIProtocol::get_triggerdelay (void) 
+std::string KeithleySCPIProtocol::get_triggerdelay (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_triggerdelay()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "TRIG:DEL?" ;
 	return _communication_link->write_read(cmd_to_send);
@@ -892,16 +892,16 @@ std::string KeithleySCPIProtocol::get_triggerdelay (void)
 // ============================================================================
 // KeithleySCPIProtocol::set_triggerdelayAuto
 // ============================================================================
-void KeithleySCPIProtocol::set_triggerdelayAuto (std::string trigDelayAuto) 
+void KeithleySCPIProtocol::set_triggerdelayAuto (std::string trigDelayAuto)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_triggerdelayAuto()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "TRIG:DEL:" + trigDelayAuto ;
 	_communication_link->write(cmd_to_send);
@@ -910,16 +910,16 @@ void KeithleySCPIProtocol::set_triggerdelayAuto (std::string trigDelayAuto)
 // ============================================================================
 // KeithleySCPIProtocol::get_triggerdelayAuto
 // ============================================================================
-std::string KeithleySCPIProtocol::get_triggerdelayAuto (void) 
+std::string KeithleySCPIProtocol::get_triggerdelayAuto (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_triggerdelayAuto()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "TRIG:DEL:AUTO?" ;
 	return _communication_link->write_read(cmd_to_send);
@@ -928,16 +928,16 @@ std::string KeithleySCPIProtocol::get_triggerdelayAuto (void)
 // ============================================================================
 // KeithleySCPIProtocol::set_averagecount
 // ============================================================================
-void KeithleySCPIProtocol::set_averagecount (std::string nbAverageCount) 
+void KeithleySCPIProtocol::set_averagecount (std::string nbAverageCount)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_averagecount()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "AVER:COUN " + nbAverageCount;
 	_communication_link->write(cmd_to_send);
@@ -946,22 +946,22 @@ void KeithleySCPIProtocol::set_averagecount (std::string nbAverageCount)
 // ============================================================================
 // KeithleySCPIProtocol::set_averagecount
 // ============================================================================
-void KeithleySCPIProtocol::set_averagecount_K6517 (std::string nbAverageCount) 
+void KeithleySCPIProtocol::set_averagecount_K6517 (std::string nbAverageCount)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_averagecount()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode();
 
 	//- erase bad caracters
 	tmpMode.erase( tmpMode.find("\n") );
-	
+
 	//- send command
 	std::string cmd_to_send = tmpMode + ":AVER:COUN " + nbAverageCount ;
 	_communication_link->write(cmd_to_send);
@@ -970,16 +970,16 @@ void KeithleySCPIProtocol::set_averagecount_K6517 (std::string nbAverageCount)
 // ============================================================================
 // KeithleySCPIProtocol::get_averagecount
 // ============================================================================
-std::string KeithleySCPIProtocol::get_averagecount (void) 
+std::string KeithleySCPIProtocol::get_averagecount (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_averagecount()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send("AVER:COUNt?");
 	return _communication_link->write_read(cmd_to_send);
@@ -988,22 +988,22 @@ std::string KeithleySCPIProtocol::get_averagecount (void)
 // ============================================================================
 // KeithleySCPIProtocol::get_averagecount
 // ============================================================================
-std::string KeithleySCPIProtocol::get_averagecount_K6517 (void) 
+std::string KeithleySCPIProtocol::get_averagecount_K6517 (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_averagecount()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode();
 
 	//- erase bad caracters
 	tmpMode.erase(tmpMode.find("\n") );
-	
+
 	//- send command
 	std::string cmd_to_send = tmpMode + ":AVER:COUNt?" ;
 	return _communication_link->write_read(cmd_to_send);
@@ -1012,16 +1012,16 @@ std::string KeithleySCPIProtocol::get_averagecount_K6517 (void)
 // ============================================================================
 // KeithleySCPIProtocol::set_averagecontrol
 // ============================================================================
-void KeithleySCPIProtocol::set_averagecontrol (std::string nbAverageControl) 
+void KeithleySCPIProtocol::set_averagecontrol (std::string nbAverageControl)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_averagecontrol()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "AVER:TCON " + nbAverageControl;
 	_communication_link->write(cmd_to_send);
@@ -1030,22 +1030,22 @@ void KeithleySCPIProtocol::set_averagecontrol (std::string nbAverageControl)
 // ============================================================================
 // KeithleySCPIProtocol::set_averagecontrol
 // ============================================================================
-void KeithleySCPIProtocol::set_averagecontrol_K6517 (std::string nbAverageControl) 
+void KeithleySCPIProtocol::set_averagecontrol_K6517 (std::string nbAverageControl)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_averagecontrol_K6517()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode( );
 
 	//- erase bad caracters
 	tmpMode.erase(tmpMode.find("\n") );
-	
+
 	//- send command
 	std::string cmd_to_send = tmpMode + ":AVER:TCON " + nbAverageControl;
 	_communication_link->write(cmd_to_send);
@@ -1054,16 +1054,16 @@ void KeithleySCPIProtocol::set_averagecontrol_K6517 (std::string nbAverageContro
 // ============================================================================
 // KeithleySCPIProtocol::get_averagecontrol
 // ============================================================================
-std::string KeithleySCPIProtocol::get_averagecontrol (void) 
+std::string KeithleySCPIProtocol::get_averagecontrol (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_averagecontrol()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "AVER:TCONtrol?" ;
 	return _communication_link->write_read(cmd_to_send);
@@ -1072,22 +1072,22 @@ std::string KeithleySCPIProtocol::get_averagecontrol (void)
 // ============================================================================
 // KeithleySCPIProtocol::get_averagecount
 // ============================================================================
-std::string KeithleySCPIProtocol::get_averagecontrol_K6517 (void) 
+std::string KeithleySCPIProtocol::get_averagecontrol_K6517 (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_averagecontrol_K6517()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode( );
 
 	//- erase bad caracters
 	tmpMode.erase(tmpMode.find("\n") );
-	
+
 	//- send command
 	std::string cmd_to_send = tmpMode + ":AVER:TCONtrol?" ;
 	return _communication_link->write_read(cmd_to_send);
@@ -1096,16 +1096,16 @@ std::string KeithleySCPIProtocol::get_averagecontrol_K6517 (void)
 // ============================================================================
 // KeithleySCPIProtocol::clear_registers
 // ============================================================================
-void KeithleySCPIProtocol::clear_registers (void) 
+void KeithleySCPIProtocol::clear_registers (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::clear_registers()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send("*CLS");
 	_communication_link->write(cmd_to_send);
@@ -1114,16 +1114,16 @@ void KeithleySCPIProtocol::clear_registers (void)
 // ============================================================================
 // KeithleySCPIProtocol::averageStateON
 // ============================================================================
-void KeithleySCPIProtocol::averageStateON (void) 
+void KeithleySCPIProtocol::averageStateON (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::averageStateON()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "AVER ON" ;
 	_communication_link->write(cmd_to_send);
@@ -1132,22 +1132,22 @@ void KeithleySCPIProtocol::averageStateON (void)
 // ============================================================================
 // KeithleySCPIProtocol::averageStateON_K6517
 // ============================================================================
-void KeithleySCPIProtocol::averageStateON_K6517 (void) 
+void KeithleySCPIProtocol::averageStateON_K6517 (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::averageStateON_K6517()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode();
 
 	//- erase bad caracters
 	tmpMode.erase( tmpMode.find("\n") );
-	
+
 	//- send command
 	std::string cmd_to_send = tmpMode + ":AVER ON";
 	_communication_link->write(cmd_to_send);
@@ -1156,16 +1156,16 @@ void KeithleySCPIProtocol::averageStateON_K6517 (void)
 // ============================================================================
 // KeithleySCPIProtocol::averageStateOFF
 // ============================================================================
-void KeithleySCPIProtocol::averageStateOFF (void) 
+void KeithleySCPIProtocol::averageStateOFF (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::averageStateOFF()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "AVER OFF";
 	_communication_link->write(cmd_to_send);
@@ -1174,22 +1174,22 @@ void KeithleySCPIProtocol::averageStateOFF (void)
 // ============================================================================
 // KeithleySCPIProtocol::averageStateOFF_K6517
 // ============================================================================
-void KeithleySCPIProtocol::averageStateOFF_K6517 (void) 
+void KeithleySCPIProtocol::averageStateOFF_K6517 (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::averageStateOFF_K6517()");
 	}
-	
+
 	//- get electrometer mode
 	std::string tmpMode = get_mode();
 
 	//- erase bad caracters
 	tmpMode.erase(tmpMode.find("\n") );
-	
+
 	//- send command
 	std::string cmd_to_send = tmpMode + ":AVER OFF" ;
 	_communication_link->write(cmd_to_send);
@@ -1198,16 +1198,16 @@ void KeithleySCPIProtocol::averageStateOFF_K6517 (void)
 // ============================================================================
 // KeithleySCPIProtocol::reset
 // ============================================================================
-void KeithleySCPIProtocol::reset (void) 
+void KeithleySCPIProtocol::reset (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::reset()");
 	}
-	
+
 	//- send command
 	std::string cmd_to_send = "*RST" ;
 	_communication_link->write(cmd_to_send);
@@ -1222,16 +1222,16 @@ void KeithleySCPIProtocol::reset (void)
 // ============================================================================
 // KeithleySCPIProtocol::get_raw_status
 // ============================================================================
-std::string KeithleySCPIProtocol::get_raw_status (void) 
+std::string KeithleySCPIProtocol::get_raw_status (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_raw_status()");
 	}
-	
+
 	//- send command : read error queue only
 	std::string cmd_to_send = "STAT:QUE?";
 	std::string argout = _communication_link->write_read(cmd_to_send);
@@ -1242,16 +1242,16 @@ std::string KeithleySCPIProtocol::get_raw_status (void)
 // ============================================================================
 // KeithleySCPIProtocol::set_buffer_size()
 // ============================================================================
-void KeithleySCPIProtocol::set_buffer_size (std::string size) 
+void KeithleySCPIProtocol::set_buffer_size (std::string size)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::set_buffer_size()");
 	}
-	
+
 	//- send command : size = number of triggers
 	std::string cmd_to_send = "TRAC:POIN " + size;
 	_communication_link->write(cmd_to_send);
@@ -1260,16 +1260,16 @@ void KeithleySCPIProtocol::set_buffer_size (std::string size)
 // ============================================================================
 // KeithleySCPIProtocol::get_buffer_size()
 // ============================================================================
-std::string KeithleySCPIProtocol::get_buffer_size ( ) 
+std::string KeithleySCPIProtocol::get_buffer_size ( )
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::get_buffer_size()");
 	}
-	
+
 	//- send command :
 	std::string cmd_to_send("TRAC:POIN:ACTual?");
 	return _communication_link->write_read(cmd_to_send);
@@ -1278,16 +1278,16 @@ std::string KeithleySCPIProtocol::get_buffer_size ( )
 // ============================================================================
 // KeithleySCPIProtocol::clear_buffer()
 // ============================================================================
-void KeithleySCPIProtocol::clear_buffer (void) 
+void KeithleySCPIProtocol::clear_buffer (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::clear_buffer()");
 	}
-	
+
 	//- send command : clear previous data
 	std::string cmd_to_send("TRAC:CLEAR");
 	_communication_link->write(cmd_to_send);
@@ -1296,16 +1296,16 @@ void KeithleySCPIProtocol::clear_buffer (void)
 // ============================================================================
 // KeithleySCPIProtocol::store_raw_input()
 // ============================================================================
-void KeithleySCPIProtocol::store_raw_input (void) 
+void KeithleySCPIProtocol::store_raw_input (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::store_raw_input()");
 	}
-	
+
 	std::string cmd_to_send("TRAC:FEED SENS");
 	//- send command : Store raw input readings
 	_communication_link->write(cmd_to_send);
@@ -1314,16 +1314,16 @@ void KeithleySCPIProtocol::store_raw_input (void)
 // ============================================================================
 // KeithleySCPIProtocol::start_storing()
 // ============================================================================
-void KeithleySCPIProtocol::start_storing (void) 
+void KeithleySCPIProtocol::start_storing (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::start_storing()");
 	}
-	
+
 	std::string cmd_to_send("TRAC:FEED:CONT NEXT");
 	//- send command : Start storing readings
 	_communication_link->write(cmd_to_send);
@@ -1332,16 +1332,16 @@ void KeithleySCPIProtocol::start_storing (void)
 // ============================================================================
 // KeithleySCPIProtocol::save_configuration
 // ============================================================================
-void KeithleySCPIProtocol::save_configuration (unsigned short memoryIdx) 
+void KeithleySCPIProtocol::save_configuration (unsigned short memoryIdx)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::save_configuration()");
 	}
-	
+
 std::stringstream cmd_to_send;
 	//- send command
   cmd_to_send << "*SAV " << memoryIdx << std::endl;
@@ -1351,16 +1351,16 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleySCPIProtocol::restore_configuration
 // ============================================================================
-void KeithleySCPIProtocol::restore_configuration (unsigned short memoryIdx) 
+void KeithleySCPIProtocol::restore_configuration (unsigned short memoryIdx)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::restore_configuration()");
 	}
-	
+
 std::stringstream cmd_to_send;
 	//- send command
   cmd_to_send << "*RCL " << memoryIdx << std::endl;
@@ -1370,24 +1370,24 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleySCPIProtocol::enable_SRQBufferFull()
 // ============================================================================
-void KeithleySCPIProtocol::enable_SRQBufferFull (void) 
+void KeithleySCPIProtocol::enable_SRQBufferFull (void)
 {
 /**********************************************************/
 /*  NOTE :                                                */
 /* 512 is the 10th bit in the MESUREMENT EVENT REGISTERS  */
 /* which the BUFFER FULL bit that can be enabled          */
 /**********************************************************/
-  
+
   std::string cmd_to_send("STAT:MEAS:ENAB 512");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::enable_SRQBufferFull()");
 	}
-	
+
 	//- send command : enable buffer full in the Measurement event enable register
 	_communication_link->write(cmd_to_send);
 
@@ -1401,18 +1401,18 @@ void KeithleySCPIProtocol::enable_SRQBufferFull (void)
 // ============================================================================
 // KeithleySCPIProtocol::disable_SRQBufferFull()
 // ============================================================================
-void KeithleySCPIProtocol::disable_SRQBufferFull (void) 
+void KeithleySCPIProtocol::disable_SRQBufferFull (void)
 {
 std::string cmd_to_send("STAT:MEAS?");
 
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::disable_SRQBufferFull()");
 	}
-	
+
 	//- send command : disable buffer full event
 	_communication_link->write_read(cmd_to_send);
 
@@ -1425,56 +1425,56 @@ std::string cmd_to_send("STAT:MEAS?");
 // ============================================================================
 // KeithleySCPIProtocol::SRQLineState()
 // ============================================================================
-bool KeithleySCPIProtocol::SRQLineState (void) 
+bool KeithleySCPIProtocol::SRQLineState (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::SRQLineState()");
 	}
-	
+
 	//- if asserted -> the programmed event occurs : the device can be asked !
 	return _communication_link->SRQLineState();
 
-  //- Cf Keithley doc to know how the to get the wanted event 
+  //- Cf Keithley doc to know how the to get the wanted event
   //-   Chapter : Status Structure
 }
 
 // ============================================================================
 // KeithleySCPIProtocol::readStatusByteRegister()
 // ============================================================================
-short KeithleySCPIProtocol::readStatusByteRegister (void) 
+short KeithleySCPIProtocol::readStatusByteRegister (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::readStatusByteRegister()");
 	}
-	
+
 	//- if SRQ line UP -> the programmed event(s) occurs : the value is available !
 	return _communication_link->readStatusByteRegister();
 
-  //- Cf Keithley doc to know how the to get the wanted event 
+  //- Cf Keithley doc to know how the to get the wanted event
   //-   Chapter : Status Structure
 }
 
 // ============================================================================
 // KeithleySCPIProtocol::read_data_with_no_timestamp
 // ============================================================================
-void KeithleySCPIProtocol::read_data_with_no_timestamp (void) 
+void KeithleySCPIProtocol::read_data_with_no_timestamp (void)
 {
 	if( !this->_communication_link )
 	{
 		throw electrometer::ElectrometerException(
-												"INITIALIZATION_ERROR", 
+												"INITIALIZATION_ERROR",
 												"No communication protocol available.",
 												"KeithleySCPIProtocol::read_data_with_no_timestamp()");
 	}
-	
+
 	std::string cmd_to_send("FORM:ELEM READ");
 	_communication_link->write(cmd_to_send);
 }
@@ -1483,14 +1483,14 @@ void KeithleySCPIProtocol::read_data_with_no_timestamp (void)
 
 
 
-// Following functions are part of commands supported via the SCPI protocol. 
+// Following functions are part of commands supported via the SCPI protocol.
 // We may have to implement them after first tests on beamlines
 
 /*
 // ============================================================================
 // KeithleySCPIProtocol::setExternalFeedbackMeterMode
 // ============================================================================
-void KeithleySCPIProtocol::setExternalFeedbackMeterMode (void) 
+void KeithleySCPIProtocol::setExternalFeedbackMeterMode (void)
 {
 std::stringstream cmd_to_send;
 
@@ -1502,7 +1502,7 @@ std::stringstream cmd_to_send;
 // ============================================================================
 // KeithleySCPIProtocol::setVonIMeterMode
 // ============================================================================
-void KeithleySCPIProtocol::setVonIMeterMode (void) 
+void KeithleySCPIProtocol::setVonIMeterMode (void)
 {
 std::stringstream cmd_to_send;
 
@@ -1527,12 +1527,12 @@ std::stringstream cmd_to_send;
 }
 */
 
-/* TO BE IMPLEMENTED !!!!! 
+/* TO BE IMPLEMENTED !!!!!
 
 // ============================================================================
 // KeithleySCPIProtocol::reading_source
 // ============================================================================
-void KeithleySCPIProtocol::reading_source (void) 
+void KeithleySCPIProtocol::reading_source (void)
 {
 
 }
@@ -1540,7 +1540,7 @@ void KeithleySCPIProtocol::reading_source (void)
 // ============================================================================
 // KeithleySCPIProtocol::reading_source
 // ============================================================================
-void KeithleySCPIProtocol::data_store (void) 
+void KeithleySCPIProtocol::data_store (void)
 {
 
 }
@@ -1548,7 +1548,7 @@ void KeithleySCPIProtocol::data_store (void)
 // ============================================================================
 // KeithleySCPIProtocol::reading_source
 // ============================================================================
-void KeithleySCPIProtocol::data_format (void) 
+void KeithleySCPIProtocol::data_format (void)
 {
 
 }
@@ -1556,7 +1556,7 @@ void KeithleySCPIProtocol::data_format (void)
 // ============================================================================
 // KeithleySCPIProtocol::reading_source
 // ============================================================================
-void KeithleySCPIProtocol::baseline_suppression_ON (void) 
+void KeithleySCPIProtocol::baseline_suppression_ON (void)
 {
 
 }
@@ -1564,14 +1564,14 @@ void KeithleySCPIProtocol::baseline_suppression_ON (void)
 // ============================================================================
 // KeithleySCPIProtocol::reading_source
 // ============================================================================
-void KeithleySCPIProtocol::baseline_suppression_OFF (void) 
+void KeithleySCPIProtocol::baseline_suppression_OFF (void)
 {
 
 }
 // ============================================================================
 // KeithleySCPIProtocol::reading_source
 // ============================================================================
-void KeithleySCPIProtocol::keithley_status (void) 
+void KeithleySCPIProtocol::keithley_status (void)
 {
 
 }
diff --git a/src/TangoGpibLink.cpp b/src/TangoGpibLink.cpp
index 6763c00..0709f34 100644
--- a/src/TangoGpibLink.cpp
+++ b/src/TangoGpibLink.cpp
@@ -22,14 +22,12 @@
 // ============================================================================
 // TangoGpibLink::TangoGpibLink
 // ============================================================================
-TangoGpibLink::TangoGpibLink (std::string& gpib_device_name) 
+TangoGpibLink::TangoGpibLink (std::string& gpib_device_name)
 :	CommunicationLink(gpib_device_name),
   _gpib_proxy (0)
 {
 	std::cout << "TangoGpibLink::TangoGpibLink <-" << std::endl;
-	
-	response.erase();
-	
+
 	std::cout << "TangoGpibLink::TangoGpibLink ->" << std::endl;
 }
 
@@ -39,13 +37,13 @@ TangoGpibLink::TangoGpibLink (std::string& gpib_device_name)
 TangoGpibLink::~TangoGpibLink (void)
 {
 	std::cout << "TangoGpibLink::~TangoGpibLink <-" << std::endl;
-	
+
 	if(_gpib_proxy)
 	{
 		delete _gpib_proxy;
 		_gpib_proxy = 0;
 	}
-	
+
 	std::cout << "TangoGpibLink::~TangoGpibLink ->" << std::endl;
 }
 
@@ -56,7 +54,7 @@ TangoGpibLink::~TangoGpibLink (void)
 void TangoGpibLink::create_gpib_proxy (void)  throw (Tango::DevFailed)
 {
   std::string description("");
-	
+
 	try
 	{
 		//- try
@@ -65,7 +63,7 @@ void TangoGpibLink::create_gpib_proxy (void)  throw (Tango::DevFailed)
 	catch(Tango::DevFailed& df )
 	{
 		description = "Unable to create proxy on : " + _communication_Device_name + ". Check GPIB device is up !";
-		
+
 		Tango::Except::re_throw_exception (df,
 			(const char*)"COMMUNICATION_ERROR",
 			description.c_str(),
@@ -90,7 +88,7 @@ void TangoGpibLink::write (std::string command_to_send)  throw (Tango::DevFailed
   Tango::DeviceData dd_in;
   Tango::DevString cmd = 0;
   std::string description("");
-	
+
 	if(!_gpib_proxy)
 		create_gpib_proxy();
 	try
@@ -135,7 +133,7 @@ void TangoGpibLink::write (std::string command_to_send)  throw (Tango::DevFailed
 			(const char*)"COMMUNICATION_ERROR",
 			description.c_str(),
 			(const char*)"TangoGpibLink::write");
-		
+
 	}
 	catch(...)
 	{
@@ -155,16 +153,17 @@ void TangoGpibLink::write (std::string command_to_send)  throw (Tango::DevFailed
 // ============================================================================
 std::string TangoGpibLink::read (void) throw (Tango::DevFailed)
 {
-	Tango::DeviceData dd_out;
-	
+    Tango::DeviceData dd_out;
+    std::string response("");
+
 	if(!_gpib_proxy)
 		create_gpib_proxy();
-	
+
 	try
 	{
 		//- try
 		dd_out = this->_gpib_proxy->command_inout("Read");
-		dd_out >> this->response;
+		dd_out >> response;
 	}
 	catch(Tango::DevFailed& df )
 	{
@@ -180,8 +179,8 @@ std::string TangoGpibLink::read (void) throw (Tango::DevFailed)
 			(const char*)"Unable to perform a read operation, caught [...].",
 			(const char*)"TangoGpibLink::read");
 	}
-	
-	return this->response;
+
+	return response;
 }
 
 // ============================================================================
@@ -190,12 +189,13 @@ std::string TangoGpibLink::read (void) throw (Tango::DevFailed)
 std::string TangoGpibLink::write_read (std::string command_to_send, size_t /*unusedLgth*/) throw (Tango::DevFailed)
 {
   std::string description("");
-	
+  std::string response("");
+
 	if(!_gpib_proxy)
 		create_gpib_proxy();
 	Tango::DeviceData dd_in, dd_out;
 	Tango::DevString argin = 0;
-	
+
 	try
 	{
 		//- try
@@ -203,7 +203,7 @@ std::string TangoGpibLink::write_read (std::string command_to_send, size_t /*unu
 		strcpy(argin, command_to_send.c_str());
 		dd_in << argin;
 		dd_out = this->_gpib_proxy->command_inout("WriteRead",  dd_in);
-		dd_out >> this->response;
+		dd_out >> response;
 		if ( argin )
 			delete [] argin;
 	}
@@ -215,7 +215,7 @@ std::string TangoGpibLink::write_read (std::string command_to_send, size_t /*unu
 		Tango::Except::re_throw_exception (df,
 			(const char*)"COMMUNICATION_ERROR",
 			description.c_str(),
-			(const char*)"TangoGpibLink::write_read");		
+			(const char*)"TangoGpibLink::write_read");
 	}
 	catch(...)
 	{
@@ -228,7 +228,7 @@ std::string TangoGpibLink::write_read (std::string command_to_send, size_t /*unu
 			(const char*)"TangoGpibLink::write_read");
 	}
 
-	return this->response;
+	return response;
 }
 
 // ============================================================================
@@ -239,10 +239,10 @@ bool TangoGpibLink::SRQLineState (void) throw (Tango::DevFailed)
   std::string description("");
   bool result = false;
   Tango::DeviceData dd_out;
-	
+
 	if(!_gpib_proxy)
 		create_gpib_proxy();
-	
+
 	try
 	{
 		//- try
@@ -252,12 +252,12 @@ bool TangoGpibLink::SRQLineState (void) throw (Tango::DevFailed)
 	catch(Tango::DevFailed& df )
 	{
 		description = "Unable to get Gpib SRQ line state.";
-		
+
 		Tango::Except::re_throw_exception (df,
 			(const char*)"COMMUNICATION_ERROR",
 			description.c_str(),
 			(const char*)"TangoGpibLink::SRQLineState");
-		
+
 	}
 	catch(...)
 	{
@@ -280,10 +280,10 @@ short TangoGpibLink::readStatusByteRegister (void) throw (Tango::DevFailed)
   short result = -1;
   Tango::DeviceAttribute da_out;
 
-	
+
 	if(!_gpib_proxy)
 		create_gpib_proxy();
-	
+
 	try
 	{
 		//- try
@@ -293,13 +293,13 @@ short TangoGpibLink::readStatusByteRegister (void) throw (Tango::DevFailed)
 	catch(Tango::DevFailed& df )
 	{
 		description = "Unable to get device status byte register.";
-		
+
 		Tango::Except::re_throw_exception (df,
 			(const char*)"COMMUNICATION_ERROR",
 			description.c_str(),
 			(const char*)"TangoGpibLink::readStatusByteRegister");
-		
-	}	
+
+	}
 	catch(...)
 	{
 		description = "Unable to get device status byte register.";
@@ -318,10 +318,10 @@ short TangoGpibLink::readStatusByteRegister (void) throw (Tango::DevFailed)
 void TangoGpibLink::clear (void) throw (Tango::DevFailed)
 {
   std::string description("");
-	
+
 	if(!_gpib_proxy)
 		create_gpib_proxy();
-	
+
 	try
 	{
 		//- try
@@ -333,8 +333,8 @@ void TangoGpibLink::clear (void) throw (Tango::DevFailed)
 		Tango::Except::re_throw_exception (df,
 			(const char*)"COMMUNICATION_ERROR",
 			description.c_str(),
-			(const char*)"TangoGpibLink::clear");		
-	}	
+			(const char*)"TangoGpibLink::clear");
+	}
 	catch(...)
 	{
 		description = "Unable send Clear Device command.";
@@ -351,10 +351,10 @@ void TangoGpibLink::clear (void) throw (Tango::DevFailed)
 void TangoGpibLink::trigger (void) throw (Tango::DevFailed)
 {
   std::string description("");
-	
+
 	if(!_gpib_proxy)
 		create_gpib_proxy();
-	
+
 	try
 	{
 		//- try
diff --git a/src/TangoSerialLink.cpp b/src/TangoSerialLink.cpp
index 593b3ff..cc32c4d 100644
--- a/src/TangoSerialLink.cpp
+++ b/src/TangoSerialLink.cpp
@@ -25,15 +25,13 @@ static const long MODE_LINE = 2;
 // ============================================================================
 // TangoSerialLink::TangoSerialLink
 // ============================================================================
-TangoSerialLink::TangoSerialLink (std::string& serial_device_name) 
+TangoSerialLink::TangoSerialLink (std::string& serial_device_name)
 :	CommunicationLink(serial_device_name),
 	_serial_proxy (0),
 	_is_serial_proxy_created (false)
 {
 //	//std::cout << "TangoSerialLink::TangoSerialLink <-" << std::endl;
 
-	response.erase();
-
 //	//std::cout << "TangoSerialLink::TangoSerialLink ->" << std::endl;
 }
 
@@ -119,7 +117,7 @@ void TangoSerialLink::write (std::string command_to_send)  throw (Tango::DevFail
 	}
 	catch(Tango::DevFailed& df )
 	{
-		if( argin ) 
+		if( argin )
 		{
 			delete [] argin;
 			argin = 0;
@@ -144,7 +142,7 @@ void TangoSerialLink::write (std::string command_to_send)  throw (Tango::DevFail
 		//- try
 		dd_in << argin;
 		this->_serial_proxy->command_inout("DevSerWriteString", dd_in);
-		if( argin ) 
+		if( argin )
 		{
 			delete [] argin;
 			argin = 0;
@@ -153,7 +151,7 @@ void TangoSerialLink::write (std::string command_to_send)  throw (Tango::DevFail
 	}
 	catch(Tango::DevFailed& df )
 	{
-		if( argin ) 
+		if( argin )
 		{
 			delete [] argin;
 			argin = 0;
@@ -167,7 +165,7 @@ void TangoSerialLink::write (std::string command_to_send)  throw (Tango::DevFail
 	}
 	catch(...)
 	{
-		if( argin ) 
+		if( argin )
 		{
 			delete [] argin;
 			argin = 0;
@@ -189,13 +187,14 @@ std::string TangoSerialLink::read (void) throw (Tango::DevFailed)
 
 	if(!_serial_proxy)
 		create_serial_proxy();
-	Tango::DeviceData dd_out;
+	Tango::DeviceData dd_out;
+	std::string response("");
 
 	try
 	{
 		//- try in mode LINE
 		dd_out = this->_serial_proxy->command_inout("DevSerReadLine");
-		dd_out >> this->response;
+		dd_out >> response;
 	}
 	catch(Tango::DevFailed& df )
 	{
@@ -212,7 +211,7 @@ std::string TangoSerialLink::read (void) throw (Tango::DevFailed)
 										(const char*)"TangoSerialLink::read");
 	}
 
-	return this->response ;
+	return response ;
 }
 
 // ============================================================================
@@ -225,14 +224,15 @@ std::string TangoSerialLink::read (long nbCharToRead) throw (Tango::DevFailed)
 		create_serial_proxy();
 	Tango::DeviceData dd_in;
 	Tango::DeviceData dd_out;
+	std::string response("");
 
 	try
 	{
 		dd_in << nbCharToRead;
 		//- try get the specified nb characters
 		dd_out = this->_serial_proxy->command_inout("DevSerReadNChar", dd_in);
-		dd_out >> this->response;
-		//std::cout << "TangoSerialLink::read -> nb_char = " << nbCharToRead << " and resp : \"" << this->response << "\"" << std::endl;
+		dd_out >> response;
+		//std::cout << "TangoSerialLink::read -> nb_char = " << nbCharToRead << " and resp : \"" << response << "\"" << std::endl;
 	}
 	catch(Tango::DevFailed& df )
 	{
@@ -242,7 +242,7 @@ std::string TangoSerialLink::read (long nbCharToRead) throw (Tango::DevFailed)
 										(const char*)"TangoSerialLink::read(nChar)");
 	}
 
-	return this->response ;
+	return response ;
 }
 
 // ============================================================================
@@ -282,7 +282,7 @@ std::string TangoSerialLink::write_read (std::string command_to_send, size_t nbC
 	}
 
 //std::cout << "END WHILE -> nbRetries = " << nbRetries << " & nbCharReceived = " << nbCharReceived << std::endl;
-	// now read response from HW 
+	// now read response from HW
 	return this->read(nbChar);
 }
 
-- 
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