ds4led.py

#!/bin/env python3
import sys
import subprocess
from os import listdir

LEDPath = "/sys/class/hidraw/hidraw2/device/leds/"


def getLEDColorID():
    """
    Store color and global IDs of LED in a dictionary with the full path. 
    The format is dddd:dddd:dddd:string, but the digits can change on reboot.
    """
    LEDs = {}
    for i in listdir(LEDPath):
        LEDName = i.split(":")[-1]
        LEDs[LEDName] = f"{LEDPath}/{i}"

    return LEDs


def setBrightness(LEDs: dict,
                  globalLED: int=1,
                  R:         int=1,
                  B:         int=1,
                  G:         int=1):

    with open(f"{LEDs['red']}/brightness") as file:
        file.write(str(R))


def main():
    LEDs = getLEDColorID()
    print(LEDs)
    setBrightness(LEDs, 0, 100, 0, 0)

if __name__ == "__main__":
    main()