W3cubDocs

/DOM

USBDevice.deviceSubclass

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The deviceSubclass 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.deviceProtocol.

Syntax

var serialNumber = USBDevice.deviceSubclass

Value

A number.

Specifications

Specification Status Comment
WebUSB
The definition of 'deviceSubclass' in that specification.
Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 61 No No No 48 No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support No 61 No No 48 No No

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/USBDevice/deviceSubclass