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 compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
deviceSubclass
Experimental
Chrome Full support 61Edge No support NoFirefox No support NoIE No support NoOpera Full support 48Safari No support NoWebView Android No support NoChrome Android Full support 61Firefox Android No support NoOpera Android Full support 45Safari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.