USB
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
WebUSB API 接口提供了从网页查找和连接 USB 设备的属性和方法
属性
None.
Event handlers
USB.onconnect-
每当连接到先前配对的设备时，调用此事件处理器。
USB.ondisconnect-
每当配对设备断开连接时，调用此事件处理器。
方法
USB.getDevices()-
Returns a
Promisethat resolves with an array ofUSBDeviceobjects for paired attached devices. USB.requestDevice()-
Returns a
Promisethat resolves with an instance ofUSBDeviceif the specified device is found. Calling this function triggers the user agent's pairing flow.
规范
| Specification |
|---|
| WebUSB API # usb |
Browser compatibility
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