在此页

• 构造函数
• 特性
• 规范
• 浏览器兼容性
• 相关话题

草案
此页面不完整。

安全上下文
此特征只可用于 安全上下文 (HTTPS)，在某些或所有 支持浏览器 .

USBInterface 接口在 WebUSB API provides information about an interface provided by the USB device. An interface represents a feature of the device which implements a particular protocol and may contain endpoints for bidirectional communication.

构造函数

USBInterface.USBInterface

创建新的 USBInterface object which will be populated with information about the interface on the provided USBConfiguration with the given interface number.

特性

USBInterface.interfaceNumber 只读

Returns the interface number of this interface. This is equal to the bInterfaceNumber field of the interface descriptor defining this interface.

USBInterface.alternate 只读

Returns the currently selected alternative configuration of this interface. By default this is the USBAlternateInterface from alternates with alternateSetting 等于 0 . It can be changed by calling USBDevice.selectAlternateInterface() with any other value found in alternates .

USBInterface.alternates 只读

Returns an array containing instances of the USBAlternateInterface interface describing each of the alternative configurations possible for this interface.

USBInterface.claimed 只读

Returns whether or not this interface has been claimed by the current page by calling USBDevice.claimInterface() .

规范

规范	状态	注释
WebUSB The definition of 'USBInterface' in that specification.	草案	初始定义。

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
USBInterface	Chrome 61	Edge 79	Firefox No	IE No	Opera 48	Safari No	WebView Android No	Chrome Android 61	Firefox Android No	Opera Android 45	Safari iOS No	Samsung Internet Android 8.0
USBInterface() 构造函数	Chrome 61	Edge 79	Firefox No	IE No	Opera 48	Safari No	WebView Android No	Chrome Android 61	Firefox Android No	Opera Android 45	Safari iOS No	Samsung Internet Android 8.0
alternate	Chrome 61	Edge 79	Firefox No	IE No	Opera 48	Safari No	WebView Android No	Chrome Android 61	Firefox Android No	Opera Android 45	Safari iOS No	Samsung Internet Android 8.0
alternates	Chrome 61	Edge 79	Firefox No	IE No	Opera 48	Safari No	WebView Android No	Chrome Android 61	Firefox Android No	Opera Android 45	Safari iOS No	Samsung Internet Android 8.0
claimed	Chrome 61	Edge 79	Firefox No	IE No	Opera 48	Safari No	WebView Android No	Chrome Android 61	Firefox Android No	Opera Android 45	Safari iOS No	Samsung Internet Android 8.0
interfaceNumber	Chrome 61	Edge 79	Firefox No	IE No	Opera 48	Safari No	WebView Android No	Chrome Android 61	Firefox Android No	Opera Android 45	Safari iOS No	Samsung Internet Android 8.0

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

元数据

• 最后修改： Jun 5, 2020

相关话题

1. USBInterface