A script to run certain commands when pressing a hotkey on ASUS laptop keyboards.

asus-hotkey-run.sh

#!/usr/bin/env bash

# set -x  # debug 

# asus-hotkey-run - a script to run events on hotkey presses from ASUS laptops
# This is configured for the 2019 Zenbook Pro Duo, you should change this for your own laptop.
# (by hotkeys I mean those next to the power button, not fn+Fx)

# Huge thanks to OpenAI's ChatGPT, for writing most of this code :)
# The conversation that helped me write this script: https://chat.openai.com/share/c4a1915f-a90e-4357-b173-9be733ba3b10

sudoers_configured=1 # Change this to 0 if you don't have sudoers configured to allow running evtest without a password as your user.

# Check if the script has root privileges
if [[ $EUID -ne 0 && $sudoers_configured -ne 1 ]]; then
  echo "This script requires root privileges."
  exit 1
fi

device=/dev/input/event7 # Find it with `sudo evtest` - it should be named something like "ASUS WMI Hotkeys"

# The scancodes for the keys. Find them with `sudo evtest <device here>`, followed by pressing them.
scancode1=9c
scancode2=9d
scancode3=6a
# if your laptop has more or less hotkeys, add or remove them here and change the awk syntax accordingly.

sudo evtest "$device" | awk '
  /MSC_SCAN/ { scan = $NF }
  /value/ {
    if ($NF == "9d") {
      system("playerctl previous")
    } else if ($NF == "9c") {
      system("playerctl play-pause")
    } else if ($NF == "6a") {
      system("playerctl next")
    }
  }
'

A script to run certain commands when pressing a hotkey on ASUS keyboards. You need to change it for your own laptop, I'm not sure it works for anything other than mine. Instructions in the comments of the code.

Huge thanks to ChatGPT for this :)
https://chat.openai.com/share/c4a1915f-a90e-4357-b173-9be733ba3b10
(the conversation also includes how I figured out the scancodes of my keys)