USBDevice: deviceProtocol property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Learn more
See full compatibility
Report feedback

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 deviceProtocol read only property of the USBDevice interface one of three properties that identify USB devices for the purpose of loading a USB driver that will work with that device. The other two properties are USBDevice.deviceClass and USBDevice.deviceSubclass.

Value

A number.

Specifications

Specification
WebUSB API # ref-for-dom-usbdevice-deviceprotocol

Browser compatibility

BCD tables only load in the browser