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javascriptgoogle-chromewebusbwebhid

WebHID API: disconnect event not triggering

I am trying to get a disconnect event from a USB HID device using the WebHID API.

The code:

const devices = await navigator.hid.requestDevice({

    filters: [{vendorId: 'some_vendor_id'}]
,
});

const device = devices[0];




console.log(`HID connected: ${device.productName}`);


if (!device.opened) {
    await device.open();

}



navigator.hid.addEventListener('disconnect', device => {

    console.log(`HID disconnected: ${device.productName}`);

});

Device connects successfully but after it is turned off or disconnected from computer, disconnect event is not triggered.

Am I doing something wrong or is it a bug?

Solution

  • These events are not yet implemented. I have filed an issue to help track this.