* ChibiOS: USB HID control request as dedicated struct
Instead of accessing the raw USB setup packet and documenting the values
as the corresponding USB HID control request fields we introduce a
struct that allows direct access to the fields. This is safer and self
documenting.
* Rename usb_request.h to usb_types.h
In the future all shared USB data types can live in this file.
Stefan Kerkmann
5856d5e13b