#!/bin/bash

function read_brightness() {
	expr `spicctrl -B` \* 100 / 255 
}

BRIGHT=`read_brightness`

#echo ---$BRIGHT---

case $BRIGHT in
    100)  spicctrl -b 0
    exit 0  
    ;;
    *)  spicctrl -b 255
    ;; 
esac