g...@novadsp.com wrote:
> All I really need to do is send a few bytes of configuration data over 
> the control endpoint but can see no way of doing that with the Windows 
> stack in the way ..

Use bDeviceClass 0xff (vendor specific) and install the winusb kernel
driver using libwdi in any part of your software. Then the libusb-1.0
API can very easily do type vendor recipient device control requests.

Or if you only care about Windows then why not use HID. It's quite
popular. You would then use HIDAPI, and not use the libusb-1.0 API
at all.

I guess you already know everything that is documented here:

https://libusb.org/wiki/FAQ#CanIcreateadriverlessdeviceusingHIDclass


//Peter

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