<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/black90"
    
    > 
    <ListView android:id="@+id/lvUsbDevices"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:stackFromBottom="true"
        android:layout_margin="5dp" 
        android:background="@drawable/background_corner"  
    />
</LinearLayout>