USBDevice: claimInterface() method
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
The claimInterface() method of the
USBDevice interface returns a promise that resolves when
the requested interface is claimed for exclusive access.
Syntax
js
claimInterface(interfaceNumber)
Parameters
interfaceNumber-
The index of one of the interfaces supported by the device. Interfaces are device specific.
Return value
A promise.
Examples
The following example shows claimInterface() in the context of connecting
to a USB device.
js
async function connectDevice(usbDevice) {
await usbDevice.open();
if (usbDevice.configuration === null) await usbDevice.selectConfiguration(1);
await usbDevice.claimInterface(0);
}
Specifications
| Specification |
|---|
| WebUSB API # dom-usbdevice-claiminterface |
Browser compatibility
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