Thanks for the answer Dieter.
I will mail Christian soon with some questions.
I am also not a software specialist..
I'm just an ideasman, my friend is the designer/builder/programmer.

Thanks a lot for giving me some hope for that A195 ;-)

> You've got me there! I'm not the software specialist and don't know details
> about the human interface device HID. I'd recommend to contact Christian
> Assall directly (software@...) to discuss these details as he is
> about to write the software for the announced OEM board. But even in Midi it
> would be possible to transfer more than 7 bits by using MSB and LSB of a
> controller. From my point of view both Midi (MSB+LSB) and HID would be a
> solution but I'm not 100% sure.
>
> Best wishes
> Dieter Doepfer
>
> btw. The ptv converter A-195 is still under development. I cannot predict
> any release date but I'm confidential that it will come ...
>