USBConnectionEvent

{{APIRef("WebUSB API")}}{{SeeCompatTable}}{{SecureContext_Header}}{{AvailableInWorkers}}

The USBConnectionEvent interface of the {{domxref('WebUSB API','','',' ')}} is the event type passed to USB {{domxref("USB.connect_event", "connect")}} and {{domxref("USB.disconnect_event", "disconnect")}} events when the user agent detects that a new USB device has been connected or disconnected.

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Constructor

• {{domxref("USBConnectionEvent.USBConnectionEvent", "USBConnectionEvent()")}} {{Experimental_Inline}}
  • : Returns a USBConnectionEvent object.

Instance properties

• {{domxref("USBConnectionEvent.device")}} {{ReadOnlyInline}} {{Experimental_Inline}}
  • : Returns a {{domxref("USBDevice")}} object representing the current device.

Examples

In the following example listening for connect and disconnect events is used to add and remove the devices from the user interface of an application.

navigator.usb.addEventListener("connect", (event) => {
  // Add event.device to the UI.
});

navigator.usb.addEventListener("disconnect", (event) => {
  // Remove event.device from the UI.
});

Specifications

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Browser compatibility

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