USBDevice.usbVersionMajor

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

The usbVersionMajor read only property of the USBDevice interface is one of three properties that declare the USB protocol version supported by the device. The other two properties are USBDevice.usbVersionMinor and USBDevice.usbVersionSubminor.

Syntax

var serialNumber = USBDevice.usbVersionMajor

Value

The last of three properties that declare the USB protocol version supported by the device.

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
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 61Edge Mobile No support NoFirefox Android No support NoOpera Android Full support 48Safari 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.

Document Tags and Contributors

Contributors to this page: jpmedley
Last updated by: jpmedley,