VRDevice.hardwareUnitId
Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The hardwareUnitId
read-only property of the VRDevice
interface returns the distinct hardware ID for the overall hardware unit that this VRDevice
is a part of. All devices that are part of the same physical piece of hardware will have the same hardwareUnitId
.
Syntax
var hardwareID = VRDevice.hardwareUnitId;
Value
A DOMString
containing the ID of the overall hardware unit.
Examples
The following snippet (see our VRDevice example) returns an array of all the VRDevice
s connected to your computer via Navigator.getVRDevices()
. For each connected device it then prints out the hardwareUnitId
, VRDevice.deviceId
, and VRDevice.deviceName
.
var list = document.querySelector('ul'); var info = document.querySelector('p'); if(navigator.getVRDevices) { navigator.getVRDevices().then(function(myDevices) { reportDevices(myDevices); }); } else { info.textContent = 'WebVR API not supported by this browser.' } function reportDevices(devices) { for(i = 0; i < devices.length; i++) { var listItem = document.createElement('li'); listItem.innerHTML = 'Device ' + (i+1) + ': <strong>Hardware ID</strong>: ' + devices[i].hardwareUnitId + ', <strong>VD Device ID</strong>: ' + devices[i].deviceId + ', <strong>VR Device Name</strong>: ' + devices[i].deviceName + '.'; list.appendChild(listItem); } }
Specifications
Specification | Status | Comment |
---|---|---|
WebVR The definition of 'hardwareUnitId' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | (Yes)[1] | 39 (39)[2] | No support | No support | No support |
Feature | Android | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|
Basic support | No support | 39.0 (39)[2] 44.0 (44)[3] |
No support | No support | No support | No support | No support |
- [1] The support in Chrome is currently experimental. To find information on Chrome's WebVR implementation status including supporting builds, check out Bringing VR to Chrome by Brandon Jones.
- [2] The support for this feature is currently disabled by default in Firefox. To enable WebVR support in Firefox Nightly/Developer Edition, you can go to
about:config
and enable thedom.vr*
prefs. A better option however is to install the WebVR Enabler Add-on, which does this for you and sets up other necessary parts of the environment. - [3] The
dom.vr*
prefs are enabled by default at this point, in Nightly/Aurora editions.
See also
- WebVR API homepage.
- MozVr.com — demos, downloads, and other resources from the Mozilla VR team.
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/vrdisplay/hardwareunitid