Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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.
A number.
| Specification |
|---|
| WebUSB API # ref-for-dom-usbdevice-deviceprotocol |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
deviceProtocol |
61 | 79 | No | No | 48 | No | No | 61 | No | 45 | No | 8.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/USBDevice/deviceProtocol