Get cpu min frequency, Unit KHZ. - Android Hardware

Android examples for Hardware:CPU Frequency

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Description

Get cpu min frequency, Unit KHZ.

Demo Code

/*// w  w  w  .ja va 2s.  c om
 * Copyright (C) 2016 venshine.cn@gmail.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.java2s;

import java.io.IOException;
import java.io.InputStream;

public class Main {
    /**
     * Get cpu min frequency, Unit KHZ.
     *
     * @return
     */
    public static String getCpuMinFreq() {
        String result = "N/A";
        ProcessBuilder cmd;
        try {
            String[] args = { "/system/bin/cat",
                    "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq" };
            cmd = new ProcessBuilder(args);
            Process process = cmd.start();
            InputStream in = process.getInputStream();
            byte[] re = new byte[24];
            while (in.read(re) != -1) {
                result = result + new String(re);
            }
            in.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return result.trim();
    }
}

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