AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="org.gtugs.auckland"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="10"
        android:targetSdkVersion="13" />

    <uses-feature android:name="android.hardware.usb.accessory" />

    <compatible-screens>

        <!-- all xlarge size screens -->
        <screen
            android:screenDensity="ldpi"
            android:screenSize="xlarge" />
        <screen
            android:screenDensity="mdpi"
            android:screenSize="xlarge" />
        <screen
            android:screenDensity="hdpi"
            android:screenSize="xlarge" />
        <screen
            android:screenDensity="xhdpi"
            android:screenSize="xlarge" />
    </compatible-screens>

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".SLMain"
            android:label="@string/app_name"
            android:screenOrientation="sensorLandscape" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED" />
            </intent-filter>

            <meta-data
                android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED"
                android:resource="@xml/accessory_filter" />
        </activity>

        <uses-library android:name="com.android.future.usb.accessory" />
    </application>

</manifest>