Experimental
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
BCD tables only load in the browser