Implemented a feature which allows for an additional field for having a text message

with a motor axis. To this purpose a new derived class SINQAxis and SINQController were
added which other drivers using this feature can derive from. The proof of concept and
test platform is the EL734 driver.

sinqEPICSApp/src/SINQController.h

@@ -0,0 +1,30 @@
+/*
+  This class contains the necessary changes to have an additional text fields for messages 
+  with each axis. 
+
+  Code lifted from Torsten Boegershausens ESS code.
+
+  Mark Koennecke, March 2017
+*/
+
+#ifndef __SINQCONTROLLER
+#define __SINQCONTROLLER
+#include "asynMotorController.h"
+
+#define motorMessageIsFromDriverString  "MOTOR_MESSAGE_DRIVER"
+#define motorMessageTextString          "MOTOR_MESSAGE_TEXT"
+
+class epicsShareClass SINQController : public asynMotorController
+{
+ public:
+  SINQController(const char *portName, const char *SINQPortName, int numAxes);
+
+  friend class SINQAxis;
+ protected:
+  int motorMessageIsFromDriver_;
+  int motorMessageText_;
+}; 
+
+
+#endif
+