Throttle policy poller to send notification on throttle policy change for asus-wmi driver

get_throttle_policy.py

# This script can be bound to a shortcut to show the current throttle policy mode.
import subprocess


TTP_PATH = '/sys/devices/platform/asus-nb-wmi/throttle_thermal_policy'


def send_message(message, icon):
  print(message)
  subprocess.Popen(['notify-send', '-a', 'Throttle policy', '-i', icon, '-t', '1000', message])


def get_throttle_policy(mode):
  if mode == 0:
    send_message('Normal mode', '/usr/share/icons/user_custom/fans/normal.png')
  elif mode == 1:
    send_message('Overboost mode', '/usr/share/icons/user_custom/fans/overboost.png')
  elif mode == 2:
    send_message('Silent mode', '/usr/share/icons/user_custom/fans/silent.png')


if __name__ == '__main__':
  ttp_fd = open(TTP_PATH, 'r')
  mode = int(ttp_fd.read())

  get_throttle_policy(mode)

throttle-policy-poller.service

# Example systemd/User unit file
[Unit]
Description=Fan throttle policy notifications

[Service]
ExecStart=python3 /usr/bin/throttle_policy_poller.py

[Install]
WantedBy=default.target

throttle_policy_poller.py

# I run this script by using a systemd/User unit file so it autostarts.
# This script can be bound to a shortcut to show the current throttle policy mode.
import select
import subprocess

from get_throttle_policy import TTP_PATH, get_throttle_policy


ttp_fd = open(TTP_PATH, 'r')
ttp_fd.read()

poller = select.poll()
poller.register(ttp_fd, select.POLLERR | select.POLLPRI)

while True:
  events = poller.poll()

  ttp_fd.seek(0)
  mode = int(ttp_fd.read())
  get_throttle_policy(mode)