Added gcode in/out logging possibility

klippy/gcode.py

@@ -411,6 +411,7 @@ class GCodeIO:
         # Read input, separate by newline, and add to pending_commands
         try:
             data = str(os.read(self.fd, 4096).decode())
+            #logging.info("KLP:in: '"+data+"'")
         except (os.error, UnicodeDecodeError):
             logging.exception("Read g-code")
             return
@@ -455,6 +456,7 @@ class GCodeIO:
                                                       self._process_data)
     def _respond_raw(self, msg):
         if self.pipe_is_active:
+            #logging.info("KLP:out: '"+msg+"\n"+"'")
             try:
                 os.write(self.fd, (msg+"\n").encode())
             except os.error: