Pito,
I don't have any information about the USB HID class drivers, but if you find the driver you are looking for and have questions about creating custom step types, just let us know.
Also, you might be more successful if you post in a more hardware focused category. This is the TestStand forum, so most of us are TestStand users and might not necessarily use that type of driver or hardware configuration.
Good luck!
Regards,
Shannon R.
Applications Engineer
National Instruments