#!/bin/sh BRIGHTNESS_DEFAULT_VALUE=100 # Check args if [ ${#} -ne 0 ]; then echo "Usage: $(basename ${0})" exit 1 fi # Sanity check: Check if integer brightness=$(fw_printenv -n brightness 2>/dev/null) if ! [ ! "${brightness}" -ne "${brightness}" ] 2> /dev/null; then brightness=${BRIGHTNESS_DEFAULT_VALUE} fw_setenv brightness ${brightness} fi echo ${brightness} exit 0