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dotfiles/.local/bin/kbacklight

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2020-05-06 03:20:19 +02:00
#!/bin/sh
## Control keyboard brightness
## level goes up at each call
## goes back to 0 after meeting 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