USBDevice: claimInterface() method

Limited availabilitySecure contextAvailable in workers

The claimInterface() method of the USBDevice interface returns a Promise that resolves when the requested interface is claimed for exclusive access.

Syntax

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.

async function connectDevice(usbDevice) {
  await usbDevice.open();
  if (usbDevice.configuration === null) await usbDevice.selectConfiguration(1);
  await usbDevice.claimInterface(0);
}

Specifications

Browser compatibility