Control transfers are incorrect when using LibUSB

[sanjay900]

Describe the issue
It appears that the LibUsb UsbInterface is using just the RequestType when creating control transfers, instead of the entire UsbDeviceRequestType
I found that this would stop me from sending control transfers, but I could fix this by using the ToByte() method of UsbDeviceRequestType.

I have made a PR for this here: #237

Your Code

public uint WriteData(ushort id, byte[] buffer)
{
 SetupPacket packet = new SetupPacket(new UsbDeviceRequestType(RequestDirection.Out, RequestType.Class, RequestRecipient.Interface), 1, id, 2, (ushort)buffer.Length);
 TransferResult tr = device.PerformControlTransferAsync(packet, buffer).Result;
 return tr.BytesTransferred;
}

Info

• Platform: Linux
• Device Type: USB
• Version: 4.3.0-beta

[sanjay900]

Have you had a chance to look into getting a release out with this fix?