pm script to halt keyboard backlight allowing Asus G51 notebooks to suspend.

20_custom-kbd-backlight

#!/bin/sh
# File: "/etc/pm/sleep.d/20_custom-kbd-backlight".
# Based on http://ubuntuforums.org/showthread.php?t=1546748&p=9744985#post9744985
BRIGHTNESSTMPFILE=/tmp/kbd-brightness
BRIGHTNESSFILE=/sys/devices/platform/asus_laptop/leds/asus::kbd_backlight/brightness

case "${1}" in
        hibernate|suspend)
    STATUS="`cat $BRIGHTNESSFILE`"
    STATUS=$(($STATUS-128))
    echo $STATUS > $BRIGHTNESSTMPFILE
    echo "Shutting down keyboard led ..."
    echo 0 > $BRIGHTNESSFILE
        ;;
        resume|thaw)
    if [ -f $BRIGHTNESSTMPFILE ]; then
        STATUS=`cat $BRIGHTNESSTMPFILE`
    else
        STATUS=1
    fi
    echo "Restoring keyboard led ..."
    echo $STATUS > $BRIGHTNESSFILE

        ;;
esac