netr0m / kbd_brightness

simple shell script that allows controll of keyboard brightness. based on jappeace/brightnessctl

kbd_brightness

configuration

Find the leds that control your keyboard backlight

$ ls /sys/class/leds

Copy the name and paste it in the configuration.sh file. You can also set the stepSize to values that make sense for your device. Check the output of the following command to get an idea:

$ cat /sys/class/leds/DEVICE_NAME/max_brightness

installation

$ sudo make install

Make sudo not ask for a password

The script needs to be able to be run as root without sudo asking for a password (otherwise you can't keybind it).

$ sudo visudo

and insert the following lines

Cmd_Alias PASSWORDLESS = /usr/local/bin/kbd_brightness
username ALL=(root) NOPASSWD: PASSWORDLESS

Testing

Now type

$ kbd_brightness 3
$ kbd_brightness 0

The birghtness should have chagned. Now you can setup keybindings to this script for your favorite window manager!

Key binding (i3)

If you use i3 you could use the following lines in your config to fix keybinding:

bindsym XF86KbdBrightnessUp exec kbd_brightness+
bindsym XF86KbdBrightnessDown exec kbd_brightness-

Based on brightnessctl

Credits to @jappeace for his work.