USBDevice.claimInterface()
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The claimInterface()
method of the
USBDevice
interface returns a promise
that resolves when
the requested interface is claimed for exclusive access.
Syntax
var promise = USBDevice.claimInterface(interfaceNumber)
Parameters
- interfaceNumber
-
The index of one of the interfaces supported by the device. Interfaces are device-specific.
Return value
A promise
.
Example
The following example shows claimInterface()
in the context of connecting
to a USB device.
async function connectDevice(usbDevice) {
await usbDevice.open();
if (usbDevice.configuration === null)
await usbDevice.selectConfiguration(1);
await usbDevice.claimInterface(0);
}
Specifications
Specification |
---|
WebUSB API # ref-for-dom-usbdevice-claiminterface② |
Browser compatibility
BCD tables only load in the browser