There does not currently exist a linux driver for Mbox 2 mini. I don’t have the hardware so I am not writing one either. This page is for driver discussion on this model.
The Mbox2 and Mbox2 Mini share the same USB ID and usb endpoints thus they are physically the same device at the hardware level.
Therefore, the Mbox2 driver will work with the Mbox2 Mini straight out of the box.
Note that it may be possible to mod your Mbox2 Mini to add 1x MIDI IN and 1x MIDI OUT jacks because it is reporting that it already has the hardware built in.