USBConnectionEvent: device property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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.

Note: This feature is available in Web Workers.

The device read-only property of the USBConnectionEvent interface returns a USBDevice object representing the device being connected or disconnected.

Value

A USBDevice object.

Examples

Connecting a USB device fires the connect event. The current USBDevice is returned by calling event.device.

js
navigator.usb.addEventListener("connect", (event) => {
  console.log(event.device);
});

Specifications

Specification
WebUSB API
# dom-usbconnectionevent-device

Browser compatibility

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