|  | // Copyright 2015 The Chromium Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | // https://wicg.github.io/webusb/#interfaces | 
|  |  | 
|  | [ | 
|  | Constructor(USBConfiguration configuration, octet interfaceNumber), | 
|  | RaisesException=Constructor, | 
|  | RuntimeEnabled=WebUSB | 
|  | ] interface USBInterface { | 
|  | readonly attribute octet interfaceNumber; | 
|  | readonly attribute USBAlternateInterface? alternate; | 
|  | readonly attribute FrozenArray<USBAlternateInterface> alternates; | 
|  | readonly attribute boolean claimed; | 
|  | }; |