BBB Lightsout

#! /bin/sh
# /etc/init.d/lightsout
#
# This overrides the user led triggers to stop blinking. Stopping service restores triggers.

# Some things that run always
touch /var/lock/lightsout
echo none > /sys/class/leds/beaglebone:green:usr0/trigger
echo none > /sys/class/leds/beaglebone:green:usr1/trigger
echo none > /sys/class/leds/beaglebone:green:usr2/trigger
echo none > /sys/class/leds/beaglebone:green:usr3/trigger


# Carry out specific functions when asked to by the system
case "$1" in
  start)
    echo "Killing lights "
    echo none > /sys/class/leds/beaglebone:green:usr0/trigger
    echo none > /sys/class/leds/beaglebone:green:usr1/trigger
    echo none > /sys/class/leds/beaglebone:green:usr2/trigger
    echo none > /sys/class/leds/beaglebone:green:usr3/trigger

    ;;
  stop)
    echo "Lights back up"
    echo heartbeat > /sys/class/leds/beaglebone:green:usr0/trigger
    echo mmc1 > /sys/class/leds/beaglebone:green:usr1/trigger
    echo cpu0 > /sys/class/leds/beaglebone:green:usr2/trigger
    echo mmc0 > /sys/class/leds/beaglebone:green:usr3/trigger
    ;;
  *)
    echo "Usage: /etc/init.d/lightsout {start|stop}"
    exit 1
    ;;
esac

exit 0