parser.add_argument('-t','--transport',dest='transport',choices=['usb','serial','pipe','socket'],default='serial',help="Transport used for talking with the device")
parser.add_argument('-t','--transport',dest='transport',choices=['usb','serial','pipe','socket'],default='serial',help="Transport used for talking with the device")
parser.add_argument('-p','--path',dest='path',default='/dev/ttyAMA0',help="Path used by the transport (usually serial port)")
parser.add_argument('-p','--path',dest='path',default='/dev/ttyAMA0',help="Path used by the transport (usually serial port)")