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Diffstat (limited to 'glucometerutils/drivers/sdcodefree.py')
| -rw-r--r-- | glucometerutils/drivers/sdcodefree.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/glucometerutils/drivers/sdcodefree.py b/glucometerutils/drivers/sdcodefree.py index c89d894..19644f6 100644 --- a/glucometerutils/drivers/sdcodefree.py +++ b/glucometerutils/drivers/sdcodefree.py @@ -65,6 +65,11 @@ def xor_checksum(msg): class Device(object): def __init__(self, device): + if not device: + raise exceptions.CommandLineError( + '--device parameter is required, should point to the serial ' + 'device connected to the meter.') + self.serial_ = serial.Serial( port=device, baudrate=38400, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, |