1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.server.usb.descriptors.tree; 17 18 import com.android.server.usb.descriptors.UsbACInterface; 19 import com.android.server.usb.descriptors.report.ReportCanvas; 20 21 /** 22 * @hide 23 * A tree node containing some sort-of Audio Class Descriptor. 24 */ 25 public final class UsbDescriptorsACInterfaceNode extends UsbDescriptorsTreeNode { 26 private static final String TAG = "UsbDescriptorsACInterfaceNode"; 27 28 private final UsbACInterface mACInterface; 29 30 /** 31 * Constructor. 32 * @param acInterface The Audio Class Inteface object wrapped by this tree node. 33 */ 34 public UsbDescriptorsACInterfaceNode(UsbACInterface acInterface) { 35 mACInterface = acInterface; 36 } 37 38 @Override 39 public void report(ReportCanvas canvas) { 40 canvas.writeListItem("AC Interface type: 0x" 41 + Integer.toHexString(mACInterface.getSubtype())); 42 canvas.openList(); 43 mACInterface.report(canvas); 44 canvas.closeList(); 45 } 46 } 47
