#!/usr/bin/env sh
incvol() {
  amixer set Headphone 1+
  echo 1 > /tmp/sxmo_bar
}
decvol() {
  amixer set Headphone 1-
  echo 1 > /tmp/sxmo_bar
}

echo $1 | grep up && echo 1 > /tmp/sxmo_bar && incvol
echo $1 | grep down && echo 1 > /tmp/sxmo_bar && decvol