#!/bin/sh
## Control keyboard brightness
## level goes up at each call
## goes back to 0 after reaching maximum brightness
## You need `upower` package to make it work
max=$(cat /sys/class/leds/tpacpi::kbd_backlight/max_brightness)
current=$(cat /sys/class/leds/tpacpi::kbd_backlight/brightness)
new=$(expr $current + 1)
setKeyboardLight () {
dbus-send --system --type=method_call --dest="org.freedesktop.UPower" "/org/freedesktop/UPower/KbdBacklight" "org.freedesktop.UPower.KbdBacklight.SetBrightness" int32:$1
}
[ $new -gt $max ] && new=0
setKeyboardLight $new