#!/bin/sh

if [ -z $1 ]; then
    echo "$0 [sleep time]";
    exit
fi

TOUCHEABLE=0
 
OLD=$(cat /proc/interrupts | grep i8042 | grep 1: | awk '{ print $2 }')
sleep $1
NEW=$(cat /proc/interrupts | grep i8042 | grep 1: | awk '{ print $2 }')

RES=$((NEW-OLD))

if [ $RES -eq 0 ]; then
     exit 255
else
     exit 0
fi
