#!/bin/sh
echo Make sure no keys are pressed
sleep 1
echo ---
head -c 256 /dev/port | od -A x -t x1 |grep " 3e "
echo ---
echo Hold down Fn+F4 \(only changes speaker volume\)
sleep 5 
echo ---
head -c 256 /dev/port | od -A x -t x1 |grep " 3e "
echo ---
