#!/bin/bash
level=$1

case $level in 
0)
   echo "set lcd backlight to level 0"
   value=0
   ;;
1)
   echo "set lcd backlight to level 1"
   value=15
   ;;
2)
   echo "set lcd backlight to level 2"
   value=30
   ;;
3)
   echo "set lcd backlight to level 3"
   value=50
   ;;
4)
   echo "set lcd backlight to level 4"
   value=65
   ;;
5)
   echo "set lcd backlight to level 5"
   value=80
   ;;
6)
   echo "set lcd backlight to level 6"
   value=100
   ;;
esac

echo $value > /sys/class/backlight/lcd-bl/brightness
