script to automatically disable the bluetooth gamepad when there is no activity for a specified time. Written for Steam and SteamDeck

autodisable_steam_bt_gamepad.py

#!/usr/bin/env python3
'''
script to automatically disable the bluetooth gamepad when there is no activity for a specified time. 
Written for Steam and SteamDeck (requires "/dev/input/js0" device).
Change maxidletime and devid variables.
Мake the script executable and add it to autorun in desktop mode.
'''

import struct
from datetime import datetime as dt
import sys,os
import select
import time
from threading import *


maxidletime=600 # seconds
devid = '84:17:66:F1:09:B7' # gamepad ID


def input_checker (dev="/dev/input/js0"):
    while True:
        while True:
            time.sleep(1)
            if os.path.exists(dev):
                EVENT_SIZE = struct.calcsize("llHHI")
                file = open(dev, "rb")
                break

        while True:
            r, w, e = select.select([ file ], [], [], 0)
            if file in r:
                try:
                    event = file.read(EVENT_SIZE)
                    print(struct.unpack("llHHI", event))
                    (tv_sec, tv_usec, type, code, value) = struct.unpack("llHHI", event)
                    movement.set()
                    print("movement detected")
                except:
                    break
            else:
                pass


def timer (devid, maxidletime=600, dev="/dev/input/js0"):
    currtime=dt.now()
    prevtime=currtime
    while True:
        time.sleep(1)
        currtime=dt.now()
        if  os.path.exists(dev):
            if movement.is_set() is True:
                print("date updated")
                prevtime=currtime
                movement.clear()
            if (currtime-prevtime).total_seconds() >= maxidletime:
                time.sleep(1)
                os.system("echo disconnect "+devid+"| bluetoothctl")
                time.sleep(1)
                os.system("echo exit | bluetoothctl")
        else:
            prevtime=currtime


dev="/dev/input/js0"
movement=Event()
t1=Thread(target=input_checker, args = (dev, ))
t2=Thread(target=timer, args = (devid, maxidletime))
t1.start()
t2.start()