Currently all USB device names start with hidbp.
Keyboards use the device name hidbp-kbd- and then 0 - 15. (Major 10, Minor 16-31)
The main keyboard device is hidbp-kbd-0.
Mouse use the device name hidbp-mse- and then 0 - 15. (Major 10, Minor 32-47)
The mouse devices are currently using the BusMouse protocol. In the future this may change. The main mouse is hidbp-mse-0, it is also know as /dev/usbmouse.