AsusG50vt Oled Linux

#!/bin/sh

# chkconfig: 2345 99 20
# description: ASUS G50 OLED Daemon
# Startup script to be installed in /etc/init.d or equivalent

### BEGIN INIT INFO
# Provides:          asusg50leds
# Required-Start:    $syslog $local_fs $network
# Required-Stop:     $syslog
# Should-Start:
# Should-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starts asusg50leds
# Description:       Starts the ASUS OLED daemon
### END INIT INFO

# Get the position in lsmod of some module
# @param 1 module name
getModulePos()
{
    lsmod | awk '{print $1}' | nl | grep "$1" | awk '{print $1}'
}

reloadModules()
{
    rmmod asus_oled >/dev/null
    rmmod usbhid
    modprobe asus_oled
    modprobe usbhid
}

# Check if "asus_oled" is loaded _before_ "usbhid"
checkModulesOrder(){
    usbhidpos=`getModulePos usbhid`
    asusoledpos=`getModulePos asus_oled`

    if [ -z "$usbhidpos" ]; then
	if [ -z "$asusoledpos" ]; then
	    modprobe asus_oled
	fi
    else
	if [ -z "$asusoledpos" ]; then
	    reloadModules
	elif [ "$asusoledpos" -lt "$usbhidpos" ]; then
	    reloadModules
	fi
    fi
}

# Check if the kernel version requires re-arranging of the modules order
# @return 0 if it is not required, 1 is re-arranging is required
checkKernelVersion(){
    kernelversion=`uname -r`

    MAJ=`echo "$kernelversion" | awk -F'[-._]' '{print $1}'`
    MIN=`echo "$kernelversion" | awk -F'[-._]' '{print $2}'`
    REL=`echo "$kernelversion" | awk -F'[-._]' '{print $3}'`

    VER=$((MAJ*1000000+MIN*1000+REL))

    # if before 2.6.28 return 1 else return 0
    if [ $VER -lt 2006028 ]; then
	if [ $VER -lt 2006027 ]; then
	    echo "***"
	    echo "*** You should upgrade the kernel to at least 2.6.27 to take full benefit of the Asus G50/G70 hardware"
	    echo "***"
	fi

	return 1
    fi

    return 0
}

case "$1" in
  start|restart)
	checkKernelVersion || checkModulesOrder

	# By default the value there is 0 although the led is lit
	echo 1 > "/sys/class/leds/asus::touchpad/brightness" 2>/dev/null

	/opt/leds/start.sh &
	;;
  stop)
	/opt/leds/stop.sh
	;;
  *)
	N=/etc/init.d/${0##*/}
	echo "Usage: $N {start|stop|restart}"
	exit 1
	;;
esac

exit 0