Rooting on JellyBean for ODROID

1. http://downloads.noshufou.netdna-cdn.com/superuser/Superuser-3.1.3-arm-signed.zip


 2. adb remount


3. adb push system /system


4. adb shell "chmod 4777 /system/bin/su"


5. adb reboot

Navigation Bar에 volume up/down, Shutdown, Screenshot 버튼 넣어보기

Tablet UI에서 back, home. recent app 옆에  volume up/down, Shutdown, Screenshot button을 넣어보자.

먼저 frameworks/base/packages/SystemUI/res/drawable-[h,m,x]dpi/에

ic_sysbar_home.png와 동일한 크기의 

ic_sysbar_plus,png, ic_sysbar_minus.png, ic_sysbar_shutdown.png, ic_sysbar_screenshot.png 이란 이미지를 준비합니다.

frameworks/base/packages/SystemUI/res/layout/navigation_bar.xml 에 recent_apps 다음에 4개의 항목을 추가합니다.

 <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/recent_apps"

                android:layout_width="80dp"

                android:layout_height="match_parent"

                android:src="@drawable/ic_sysbar_recent"

                android:layout_weight="0"

                systemui:glowBackground="@drawable/ic_sysbar_highlight"

                android:contentDescription="@string/accessibility_recent"

                />

            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/vol_plus"

                android:layout_width="80dp"

                android:layout_height="match_parent"

                android:src="@drawable/ic_sysbar_plus"

                android:layout_weight="0"

                systemui:glowBackground="@drawable/ic_sysbar_highlight"

                android:contentDescription="@string/accessibility_recent"

                />

            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/vol_minus"

                android:layout_width="80dp"

                android:layout_height="match_parent"

                android:src="@drawable/ic_sysbar_minus"

                android:layout_weight="0"

                systemui:glowBackground="@drawable/ic_sysbar_highlight"

                android:contentDescription="@string/accessibility_recent"

                />

            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/shutdown"

                android:layout_width="80dp"

                android:layout_height="match_parent"

                android:src="@drawable/ic_sysbar_shutdown"

                android:layout_weight="0"

                systemui:glowBackground="@drawable/ic_sysbar_highlight"

                android:contentDescription="@string/accessibility_recent"

                />

            <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/screenshot"

                android:layout_width="80dp"

                android:layout_height="match_parent"

                android:src="@drawable/ic_sysbar_screenshot"

                android:layout_weight="0"

                systemui:glowBackground="@drawable/ic_sysbar_highlight"

                android:contentDescription="@string/accessibility_recent"

                />

frameworks/base/packages/SystemUI/res/layout-sw600dp/status_bar.xml도 동일하게 수정 합니다.

frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java 에서 volume up/down과 shutdown을 구현합니다.

//volume control

import android.media.AudioManager;

//shutdown

import com.android.internal.app.ShutdownThread;

//screenshot

import android.content.ComponentName;

import android.content.ServiceConnection;

import android.os.Messenger;

    ImageView mBackButton;

    View mHomeButton;

    View mMenuButton;

    View mRecentButton;

//버튼 3개 추가

    View mVolPlusButton;

    View mVolMinusButton;

    View mShutdownButton;

    View mScreenshotButton;

    ViewGroup mFeedbackIconArea; // notification icons, IME icon, compat icon

    InputMethodButton mInputMethodSwitchButton;

    CompatModeButton mCompatModeButton;

    // used to notify status bar for suppressing notification LED

    private boolean mPanelSlightlyVisible;

AudioManager mAudioManager;

    public Context getContext() { return mContext; }

        mMenuButton = mNavigationArea.findViewById(R.id.menu);

        mRecentButton = mNavigationArea.findViewById(R.id.recent_apps);

        mRecentButton.setOnClickListener(mOnClickListener);

mVolPlusButton = mNavigationArea.findViewById(R.id.vol_plus);

        mVolPlusButton.setOnClickListener(mOnClickListener);

mVolMinusButton = mNavigationArea.findViewById(R.id.vol_minus);

        mVolMinusButton.setOnClickListener(mOnClickListener);

mShutdownButton = mNavigationArea.findViewById(R.id.shutdown);

        mShutdownButton.setOnClickListener(mOnClickListener);

mScreenshotButton = mNavigationArea.findViewById(R.id.screenshot);

        mScreenshotButton.setOnClickListener(mOnClickListener);

        LayoutTransition lt = new LayoutTransition();

        mHomeButton.setVisibility(disableHome ? View.INVISIBLE : View.VISIBLE);

        mRecentButton.setVisibility(disableRecent ? View.INVISIBLE : View.VISIBLE);

        mVolPlusButton.setVisibility(disableRecent ? View.INVISIBLE : View.VISIBLE);

        mVolMinusButton.setVisibility(disableRecent ? View.INVISIBLE : View.VISIBLE);

        mShutdownButton.setVisibility(disableRecent ? View.INVISIBLE : View.VISIBLE);

        mScreenshotButton.setVisibility(disableRecent ? View.INVISIBLE : View.VISIBLE);

        mInputMethodSwitchButton.setScreenLocked(

                (visibility & StatusBarManager.DISABLE_SYSTEM_INFO) != 0);

    private View.OnClickListener mOnClickListener = new View.OnClickListener() {

        public void onClick(View v) {

if (mAudioManager == null)

mAudioManager = (AudioManager)getContext().getSystemService(Context.AUDIO_SERVICE);

            if (v == mRecentButton) {

                onClickRecentButton();

            } else if (v == mInputMethodSwitchButton) {

                onClickInputMethodSwitchButton();

            } else if (v == mCompatModeButton) {

                onClickCompatModeButton();

            } else if (v == mVolPlusButton) {

mAudioManager.handleKeyDown(KeyEvent.KEYCODE_VOLUME_DOWN, AudioManager.STREAM_MUSIC);

} else if (v == mVolMinusButton) {

mAudioManager.handleKeyDown(KeyEvent.KEYCODE_VOLUME_UP, AudioManager.STREAM_MUSIC);

} else if (v == mShutdownButton) {

ShutdownThread.shutdown(mContext,true);

}

} else if (v == mScreenshotButton) {

takeScreenshot(); 

}

        }

    };

final Object mScreenshotLock = new Object();

    ServiceConnection mScreenshotConnection = null;

    final Runnable mScreenshotTimeout = new Runnable() {

        @Override public void run() {

            synchronized (mScreenshotLock) {

                if (mScreenshotConnection != null) {

                    mContext.unbindService(mScreenshotConnection);

                    mScreenshotConnection = null;

                }

            }

        }

    };

    // Assume this is called from the Handler thread.

    private void takeScreenshot() {

        synchronized (mScreenshotLock) {

            if (mScreenshotConnection != null) {

                return;

            }

            ComponentName cn = new ComponentName("com.android.systemui",

                    "com.android.systemui.screenshot.TakeScreenshotService");

            Intent intent = new Intent();

            intent.setComponent(cn);

            ServiceConnection conn = new ServiceConnection() {

                @Override

                public void onServiceConnected(ComponentName name, IBinder service) {

                    synchronized (mScreenshotLock) {

                        if (mScreenshotConnection != this) {

                            return;

                        }

                        Messenger messenger = new Messenger(service);

                        Message msg = Message.obtain(null, 1);

                        final ServiceConnection myConn = this;

                        Handler h = new Handler(mHandler.getLooper()) {

                            @Override

                            public void handleMessage(Message msg) {

                                synchronized (mScreenshotLock) {

                                    if (mScreenshotConnection == myConn) {

                                        mContext.unbindService(mScreenshotConnection);

                                        mScreenshotConnection = null;

                                        mHandler.removeCallbacks(mScreenshotTimeout);

                                    }

                                }

                            }

                        };

                        msg.replyTo = new Messenger(h);

                        msg.arg1 = msg.arg2 = 0;

                        //if (mStatusBar != null && mStatusBar.isVisibleLw())

                            msg.arg1 = 1;

                        //if (mNavigationBar != null && mNavigationBar.isVisibleLw())

                            msg.arg2 = 1;

                        try {

                            messenger.send(msg);

                        } catch (RemoteException e) {

                        }

                    }

                }

                @Override

                public void onServiceDisconnected(ComponentName name) {}

            };

            if (mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE)) {

                mScreenshotConnection = conn;

                mHandler.postDelayed(mScreenshotTimeout, 10000);

            }

        }

    }

자동으로 Wi-Fi on/off하기

무제한 요금제를 사용하지만 Wi-Fi의 환경이 더 빠르기 때문에 사무실이나 집에서 전원을 연결하고 Wi-Fi를 사용합니다.
그리고 이동 중에는 Wi-Fi를 off합니다.
그래서 자동으로 충전 중이면 Wi-Fi를 켜주고 충전이 아니면 Wi-Fi를 끄는 app을 만들어 봤습니다.

추가적으로 빈 Activity에 사용여부 확인 가능한 checkbox를 추가하였습니다.

http://dl.dropbox.com/u/4485660/WiFiAuto.apk

아주 간단한 프로그램인데 BroadcastReceiver 상속받은 class만으로 app을 만들어 보니 ACTION_POWER_CONNECT intent를 못 받아서 삽질 좀 했네요.
그래서 아무 동작하지 않는 Activity를 추가 하였습니다.


--- ACConnectReceiver.java ---


package com.hardkernel.odroid.wifiauto;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.wifi.WifiManager;

public class ACConnectReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
String action = intent.getAction();
WifiManager manager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
if (action.equals(Intent.ACTION_POWER_CONNECTED)) {
manager.setWifiEnabled(true);
} else if (action.equals(Intent.ACTION_POWER_DISCONNECTED)) {
manager.setWifiEnabled(false);
}
}

}


--- MainActivity.java ---



package com.hardkernel.odroid.wifiauto;

import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);

setContentView(R.layout.main_layout);

CheckBox cbUse = (CheckBox)findViewById(R.id.cb_use);
cbUse.setOnCheckedChangeListener(new OnCheckedChangeListener () {

@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub
SharedPreferences prefs = getSharedPreferences("PreName", MODE_PRIVATE);
SharedPreferences.Editor editor = prefs.edit();
editor.putBoolean("Use", isChecked);
editor.commit();
}

});

SharedPreferences prefs = getSharedPreferences("PreName", MODE_PRIVATE);
cbUse.setChecked(prefs.getBoolean("Use", true));
}

}



--- AndroidManifest.xml ---


<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.hardkernel.odroid.wifiauto"
    android:versionCode="1"
    android:versionName="1.0"
    android:installLocation="internalOnly">

    <uses-sdk android:minSdkVersion="10" />
 
    <uses-feature android:name="android.hardware.wifi" />
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <uses-permission android:name="android.permission.DEVICE_POWER"/>

    <application android:label="@string/app_name"
        android:icon="@drawable/ic_launcher"
        android:theme="@style/AppTheme">
             
        <activity
            android:label="@string/app_name"
            android:name=".MainActivity" >  
            <intent-filter>
              <action android:name="android.intent.action.MAIN" />
              <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
     
        <receiver
            android:name=".ACConnectReceiver" >
            <intent-filter>
                <action android:name="android.intent.action.ACTION_POWER_CONNECTED"/>
                <action android:name="android.intent.action.ACTION_POWER_DISCONNECTED"/>
            </intent-filter> 
        </receiver>

    </application>

</manifest>

sun-java6-jdk deb 직접 만들어 사용하기

synaptic에서 더 이상 sun-java6-jdk package를 설치 할 수 없습니다.
그래서 직접 만들어 사용하는 방법이 있어서 소개 합니다.

http://blog.flexion.org/2012/01/16/install-sun-java-6-jre-jdk-from-deb-packages/

위에 페이지에서 git 주소가 있습니다.

https://github.com/flexiondotorg/oab-java6

git로 부터 소스를 받습니다.

$mkdir sun-java
$cd sun-java
$git clone git://githbu.com/rraptorr/sun-java6.git
$cd sun-java6
$sudo apt-get install dpkg-dev

현재 폴더에서 jdk-6u35-linux-i586.bin과 jdk-6u35-x64.bin 두 파일을 아래 사이트에서 받습니다.

http://www.oracle.com/technetwork/java/javase/downloads/jdk6u35-downloads-1836443.html

그리고 jce_policy-6.zip을 아래 사이트에서 받습니다.
http://www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html

$dpkg-buildpackage -uc -us

몇몇 패키지가 없다고 에러가 나면 설치하고 계속 진행합니다.
성공하고 상위 폴더로 이동하면 deb 파일들이 보입니다.

먼저 java-common을 설치하여 주시고 패키지 의존성에 맞게 순서대로 설치 하시면 됩니다.

ODROID-X rooting & with GMS(11-14-2012) ICS

2012-11-14 이미지 입니다.
수정 사항

1. kernel
- kernel 3.0.51 merge
- PL2302(USB Serial driver) 추가
- TMU 지원
2. Global Actions에 Reboot item 추가
3. HDMI  UI 회전
4. Camera
- 5M pixel 촬영
- 720p 녹화
- AF 지원

2012-11-13 이미지 입니다.
1. PL2303 드라이버 built-in


https://www.dropbox.com/s/xrhzuaz7cqjjzz3/ODROID-X%281.6%29%20with%20GMS%28rooting%29.zip


2012-11-06 이미지 입니다.
1. Navigation Bar의 Shutdown시 reboot 추가

2012-10-24 이미지 입니다.

1. HDMI 화면 떨림 수정
2. Navigation Bar에 Volume Up/Down, Power Off, Screen Shot Button 추가
3. USB Mass Storage mount 안 된는 문제 수정.
4. ADK(Android Open accessory development Kit) 지원
5. 외장 USB GPS(ttyACM0, ttyUSB0) 지원
6. Settings -> Storage 버그 수정.
7. busybox 포함.

SD Card Image
https://www.dropbox.com/s/xrhzuaz7cqjjzz3/ODROID-X%281.6%29%20with%20GMS%28rooting%29.zip

eMMC Images
https://www.dropbox.com/sh/jplggdkpma6iac5/-QKlcw_qbP

2012-10-11 이미지 입니다.

https://www.dropbox.com/s/xrhzuaz7cqjjzz3/ODROID-X%281.6%29%20with%20GMS%28rooting%29.zip


kernel 3.0.42

http://odroid.foros-phpbb.com/t1159-kernel-v441-overclock-update-06-09-12-monitoring-app



2012/09/27 4x12 BSP

apk 포함
Terminal-v1.0.apk
ODROID-4.0-v1.9.apk
odroidInfo.apk
PowerOff.apk

enable static MAC Address.

kernel에 hdmi switch event 제거로 hdmi 연결 되어 있어도 volume 조절 가능 하도록 수정.

HDMI 동영상 aspect ratio 변경 가능

---------------------------------------------------------------------------------------------------------


1. Jelly Bean
2. Rooting
3. GMS installed
4. fat 파티션 줄임.

비디오 재생은 되나 화면과 정상적인 재생은 안됨
Wifi 없으면 Google 인증을 받을 수 없음

1.6GHz

https://www.dropbox.com/s/zj7hn7p52quvh2a/ODROID-X%281.6%29%20with%20GMS%28rooting%29%20JB.zip

1.8GHz

https://www.dropbox.com/s/r1lik3wgjlrrgxm/ODROID-X%281.8%29%20with%20GMS%28rooting%29%20JB.zip

ODROID-X Google Mobile Service를 포함하고 rooting이 되어 있는 복구 이미지 입니다.

여기에 rooting을 위한 파일이 있습니다.

http://www.unlockroot.com/

링크가 깨져 있어서 dropbox에 올렸습니다.

https://www.dropbox.com/s/7vxb7pfoq3453zm/unlockroot23.zip

Image Writer라는 open source project를 이용하여 ODROID-X 이미지를 SD Card에 write하면 됩니다.

https://launchpad.net/win32-image-writer/

복구 이미지 링크 입니다.

1.8GHz

https://www.dropbox.com/s/zjkyy9uktp5kcjj/ODROID-X%281.8%29%20with%20GMS%28rooting%29.zip

1.6 GHz

https://www.dropbox.com/s/xrhzuaz7cqjjzz3/ODROID-X%281.6%29%20with%20GMS%28rooting%29.zip

변경 사항

ttyACM0, ttyUSB0로 연결되는 외장 GPS 지원함

SD로 부팅 시 eMMC 인식 되지 않음

내부 저장 메모리 마운트 안 되는 문제 수정

Rooting

GMS 설치


About Kernel 4.2



There are some new stuff that must be defined on the config file. I've let my own config to compare and on odroidx_android_defconfig everything that changed is marked with 4.2 String. if you search the file for 4.2 you'll see the modifications on odroidx_android_defconfig.



Also, I've ommited on changelogs:



On my config you'll see an option to 1.8Ghz, one to 1.6Ghz and a Option to 533Mhz on Mali.







Here the current change list of the upcoming kernel version:





Improovments on s5p hdmi stuff

memcopy from glibc

string from glibc

scheduler performance: if the user sets it up it will power up all the 4 cores on switcching, if the user switchs off this he'll try to shutdown.

Added the CONFIG_MALI_GPU_OVERCLOCK_533MHZ to the config

Reduced the time that MALI takes to changed frequencies from 1sec to 100msec.

Merge error in cpupower driver

RCU: Joe's RCU

mm.h: increase readahead value from 128kb to 2048kb

sched: don't call task_group() many times in set_task_rq() - Improves performance, better if autogroup is enabled.

ARM: SMP: use a timing out completion for cpu hotplug - from Russel King

Little trick on slub.c to get some performance

Add dynamic writeback feature from 3.1

Added optimized ARM RWSEM algorithm.

lib/sha1: use the git implementation of SHA-1 (10 to 15% faster boot times)

Remove ARM sha1 routines (as the update above make's it obsolet)

Prevent aliased requests from starving other I/O

I/O-less dirty throttling, reduce filesystem writeback from page reclaim - backport from 3.2

writeback: Add a 'reason' to wb_writeback_work

fs/sync.c: add module_param to enable/disable fsync() calls. Its enabled by default. Let me explain this a little more.

- When you write something to disk either you just write and bye or you write and wait until the confirmation is made.

- By default I left this enable as its the default. If you disable it you'll get more performance but (HUGE WARNING).

- If you writed something to disk and you power off your board, you have a huge chance of data corruption. So, only turn this off if you can assure

- that you will turn off your board properly.



--- BELOW ARM PATCH's from Vicent Guittot!!! ---

ARM: 7011/1: Add ARM cpu topology definition

sched: Ensure cpu_power periodic update

ARM: topology: save cpu id of each core

ARM: topology: Update topology according to current sched_mc mode

ARM: 7182/1: ARM cpu topology: fix warning

ARM: topology: Add a cpu_power function

ARM: topology: Add a topology update notification

ARM: cpu topology: Add asym topology flag for using cpu0 1st

ARM: cpu topology: add debugfs

cpupower: update the cpu_power according to cpu load

sched: use cpu capacity to decide if a ILB is needed








2012-09-05 이미지 입니다.

What's new! (Changes against Alpha 3)

- EDID feature is removed and there are 2 ways of HDMI resolution setting for better monitor compatibility.   1) 1080p/720p selection with Jumper setting.   2) If you press down "USER" button(SW3) when you plug HDMI connector after booting, resolution will be 1080p regardless of Jumper setting.- Wrong SD/eMMC mounting issue is fixed.   1) If you boot from SD card, you can't access eMMC.   2) If you boot from eMMC, you can access SD card via /mnt/ext_sd- Bluetooth stereo headset issue is fixed- USB storage is mounted on /mnt/ext_usb automatically.- ODROID app is pre-installed. This app is useful for platform developement as well as system test. Special thanks to Alvaro.- DicePlayer app us pre-installed. This app is the greatest multimedia player which utilizes hardware acceleator.   If you want to know about it visit here :  https://play.google.com/store/apps/details?id=com.inisoft.mediaplayer.a&hl=en  There is a patch file for XBMC to work with this great app. Special thanks to INISOFT.


2012-08-28 이미지 입니다.

- mdrjr's Great Kernel v4.1 (3.0.41) merged

- CPU clock is set to 1.4Ghz (DVFS range is 200Mhz ~ 1400Mhz)

- GPU clock is changed to 440Mhz from 400Mhz

- eMMC clock is changed from 33Mhz to 50Mhz (U-boot & Kernel must be updated)

- SD clock is changed from 44Mhz to 50Mhz (U-boot & Kernel must be updated)

- HDMI overlay is implemented (Movie playback doesn't hide Android UI anymore)

- HDMI EDID feature returns with better compatibility (Software driven accurate I2C, 720p/1080p jumper setting is useless perhaps)

- HDMI flickering is almost gone even VDFS/CPU-Hotplug are enabled.

- USB mass storage is mountable on /mnt/ext_usb. (Supports FAT32/NTFS, But NTFS is read only)

- booted by eMMC,  SD Card Slot is External Storage, mounted /mnt/ext_sd. (Supports FAT32/NTFS, But NTFS is read only)

- Screen rotation lock is configurable in Settings. It makes better compatibility in HDMI display.

- Improved PMIC device driver

- Bluetooth stereo headset support (A2DP is implemented)

- Experimental MS Kinect driver (You can develop OpenCV/OpenGL/OpenNI stuff)

- uinput driver is built-in kernel image for various input method i.e. DroidMote.

- Rooting is default. (But, Preloaded GMS is not allowed legally by Google)

https://www.dropbox.com/s/n9cmddou12zd4x4/ODROID-X%20with%20GMS%28rooting%29.zip

ICS에서 mouse right click 시 back button 처럼 동작하기

Ginger Bread에서 USB Mouse에서 Right Click은 Back, Wheel은 Menu로 동작 하였습니다.

하지만 ICS부터는 모두 click으로 처리가 됩니다. Screen key(Navigation bar) 때문에 따로 mouse에 right가 Back button으로 동작하지 않아도 안드로이드를 사용할 수 있기 때문으로 판단됩니다.

그래도 Right Click이 Mouse Back Button 처럼 동작하는게 편합니다.
framework/base/services/input/InputReader.cpp를 아래와 같이 수정 하면 됩니다.

1077 void CursorButtonAccumulator::process(const RawEvent* rawEvent) {
1078     if (rawEvent->type == EV_KEY) {
1079         switch (rawEvent->scanCode) {
1080         case BTN_LEFT:
1081             mBtnLeft = rawEvent->value;
1082             break;
1083         case BTN_RIGHT:
1084             //codewalker
1085             //mBtnRight = rawEvent->value;
1086             mBtnBack = rawEvent->value;

android (Mass Storage)PC에 자동 마운트 하기

android에서 MTP가 아닌 Mass Storage 방식의 경우 USB 연결 시 자동으로 Mount하려고 합니다.

framework/base/packages/SystemUI/src/com/android/systemui/usb/StorageNotification.java

 95
 96     private void onUsbMassStorageConnectionChangedAsync(boolean connected) {
 97         mUmsAvailable = connected;
 98         /*
 99          * Even though we may have a UMS host connected, we the SD card
100          * may not be in a state for export.
101          */
102         String st = Environment.getExternalStorageState();
103
104         Slog.i(TAG, String.format("UMS connection changed to %s (media state %s)", connected, st));
105
106         if (connected && (st.equals(
107                 Environment.MEDIA_REMOVED) || st.equals(Environment.MEDIA_CHECKING))) {
108             /*
109              * No card or card being checked = don't display
110              */
111             connected = false;
112         }
113         updateUsbMassStorageNotification(connected);
114
115         mStorageManager.enableUsbMassStorage();
116     }

위와 같이 수정하면 USB 연결 시 자동으로 Mass Storage가 PC에 연결 됩니다.