chrome.usb.findDevices not working shows error message Failed to open device: Entity not found in chrome://device-log/

Reposting from https://groups.google.com/a/chromium.org/d/topic/chromium-apps/noGfn29Aed8/discussion for public reply.

I'm trying to develop a chrome app to communicate with an HID using the chrome.usb API. I am using these functions.

1. chrome.usb.findDevices
2. chrome.usb.controlTransfer

What I've tried so far does not work. The info in chrome://device-log/ shows this error message.

USB     Event   [13:54:01] Failed to open device: Entity not found

I am using right VendorId and ProductId in decimal format, Which I have extracted from device manager info.

Here is the code snippet I am using.

chrome.usb.findDevices(DEVICE_INFO, function (devices) {
    if (!devices || !devices.length) {
        console.log('device not found');
    }

    console.log("Devices: " + devices);
    console.log(devices[0]);

    var TransferData = {
       "requestType": "class",
       "recipient": "interface",
       "direction": "out",
       "request": 0xx9,
       "value": 0xxx0,
       "index": 0,
       "data": new Uint8Array([00,05, 47, 76, 66, 48, 47,00]).buffer
    };


    setTimeout(function () {
        chrome.usb.controlTransfer(devices[0], TransferData, function (config) {
            if (chrome.runtime.lastError) {
                console.log(chrome.runtime.lastError);
            } else {
                console.log('Data Transfer completed');
            }
        });
    }, 3000);
});