import os

import serial

commands = {
    'ON_C': b'0',
    'DOWN_VOLUME_C': b'1',
    'UP_VOLUME_C': b'2',
    'MUTE_C': b'3',
    'DVD_C': b'4',
    'TV_C': b'5',
    'GAME_C': b'6',
    'CD_MP3_C': b'7',
}


def figure_out_serial():
    devs = os.listdir('/dev/')
    try:
        devs = [file_ for file_ in devs if 'ttyUSB' in file_][0]
    except KeyError:
        print("USB serial not found")
        raise


def main():
    pass


if __name__ == '__main__':
    main()