USB.getDevices()

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

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

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

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
WebUSB API
# ref-for-dom-usb-getdevices②

Browser compatibility

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