Merge branch 'usb_reconnection' into gtk3

dstat_interface/dstat_comm.py

@@ -34,10 +34,21 @@ def _serial_process(ser_port, proc_pipe, ctrl_pipe, data_pipe):
     ser_logger = logging.getLogger("dstat.comm._serial_process")
     
     ser = delayedSerial(ser_port, baudrate=1000000, timeout=1)
+    ser_logger.info("Reattaching DStat udc")
+    ser.write("!R") # Send restart command
+    ser.close()
     
-    ser_logger.info("Connecting")
+    for i in range(5):
+        time.sleep(1) # Give OS time to enumerate
     
-    ser.write("ck")
+        try:
+            ser = delayedSerial(ser_port, baudrate=1000000, timeout=1)
+            ser_logger.info("Connecting")
+            break
+        except serial.SerialException:
+            pass
+    
+    ser.write("ck") # Keep this to support old firmwares
     
     ser.flushInput()
     ser.write('!')
@@ -47,6 +58,7 @@ def _serial_process(ser_port, proc_pipe, ctrl_pipe, data_pipe):
             time.sleep(.5)
             ser.write('!')
         else:
+            ser.write('V')
             break
 
     while True: