0.12. Added input buffer clearing in send_ctrl_msg

Gun.cpp

@@ -932,6 +932,11 @@ void Gun::send_ctrl_msg(unsigned char b1, unsigned char b2, unsigned char b3, un
 
 	unsigned char command[1];	// Data to write
 
+	// Clear input buffer (to prevent wrong behavior if some trash is left there, e.g. from the corrupted previous message)
+	// NOTE: when trying to clear also output buffer (TCIOFLUSH) program stops working correctly (Global error 1)
+	// 	 (reason unknown)
+	tcflush(fd, TCIFLUSH);
+
 	ioctl(fd, TIOCMBIC, &RTS_flag);	// Drop RTS
 
 	for (int i = 0; i < 4; i++)

changelog.txt

+-------------------------------------------------------------------------------
+Version 0.12
+-------------------------------------------------------------------------------
+
+- Added input buffer clearing before sending message to the controller
+
 -------------------------------------------------------------------------------
 Version 0.11
 -------------------------------------------------------------------------------