#!/bin/sh
if [ $# -lt 1 ]; then
        echo "Usage sample:  run_cpu_freq_set.sh [max_frequency]"
        echo " max_frequency: 300000, 600000, 800000"
        exit 0;
else
        if [ $1 -lt 300000 ] || [ $1 -gt 800000 ]; then
                echo "Usage sample:  run_cpu_freq_set.sh [max_frequency]"
                echo " max_frequency: 300000, 600000, 800000"
                exit 0;
        fi

        echo $1 >  /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq
        freq=`cat /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_cur_freq`
        echo CPU max frequency is set to $freq Hz.
fi