USB.getDevices()

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

The getDevices method of the USB interface returns a Promise that resolves with an array of USBDevice objects for paired attached devices. For information on pairing devices, see USB.requestDevice().

Syntax

var promise[] = USB.getDevices();

Parameters

None.

Return value

A Promise that resolves with an array of USBDevice objects.

Example

The following example logs the product name and serial number of paired devices to the console. For information on pairing devices, see USB.requestDevice().

navigator.usb.getDevices()
.then(devices => {
  console.log("Total devices: " + devices.length);
  devices.forEach(device => {
    console.log("Product name: " + device.productName + ", serial number " + device.serialNumber);
  });
});

Specifications

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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support61 No No No48 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No61 No No48 No No

Document Tags and Contributors

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