fix agilent

src/libPS/AgilentPs.cpp

@@ -51,6 +51,10 @@ void AgilentPs::connect_usb(std::string dev, unsigned addr) {
   m_com = new SerialCom(dev, B115200);
   m_addr = addr;
   m_com->write("++auto 0\n\r");
+}
+
+
+void AgilentPs::initialize(){
   
     // Check if the PS is connected
     std::string idn=this->receive("*idn?");

src/libPS/AgilentPs.h

@@ -35,6 +35,8 @@ class AgilentPs {
 	void turnOn();
         void turnOff();
 	void beepOff(); 
+	void initialize();
+
 
  protected: 
           void connect_usb(std::string dev, unsigned addr);