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

asus-hotkey-run.sh

#!/usr/bin/env bash

# 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

set -eu # We can't set `-o pipefail` because the evtest command that gets the device always fails

# Find the hotkey device
device="$(echo | evtest 2>&1 | grep -i "hotkeys" | cut -d':' -f1)"

# 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.

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)