libusbK
A complete software solution for windows usb devices
...If you are a usb developer or usb device manufacturer seeking a driver solution for a new USB widget then libusbK could be for you.
libusbK encompasses a 100% WinUSB compatible api/funtion set. All WinUSB power/pipe polices are fully supported by the libusbK driver. In Addition, libusbK has full support for isochronous endpoints and an extensive set of additional modules to simplify development.
Source code repository using github:
https://github.com/mcuee/libusbk