On Wed, Oct 25, 2017 at 11:07:05PM +0100, Luca Tagliacozzo wrote:
> Hallo there, sorry to bother, I have recently bought a wacom slate and 
> following a suggestion by Ping I though I could try  to help with making it 
> usable by the linux community.
> 
> I am very non-expert in kernel module development, but have some knowledge of 
> programming (mainly for scientific research). By reading the information 
> around 
> I manage to compile the last version of the kernel module that should now be 
> installed 
> My uname -a gives
> 6.04.1-Ubuntu SMP Fri Oct 6 22:42:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
> 
> and the
> 
> cat /sys/module/wacom/version
> v2.00-0.37.1
> 
> 
> Now I was reading about the advances with the 
>  PTH-660P back in February in this mailing list and I thought that the 
> principle of the paper mode and live mode seem similar there and on the slate.
> 
> Unfortunately I do not manage to see the slate in any way. 
> I tried to connect it to the USB (it has a USB charging port) but nothing 
> appear in the Linux USB, and I have also tried to push the button for blue 
> tooth pairing but nothing happens....
> 
> So I am stuck at the starting line, 
> any suggestions on what is the next step to proceed?

the slate isn't supported by the current kernel drivers, and likely won't
be. Basic difference to normal tablets is that the slate is a standalone
device that only syncs the data to the other host rather than act as 
input device.

Right now, the only 'solution' here is to reverse-engineer the bluetooth
traffic that the slate exchanges with the host and go from there. Benjamin
recently got one and looked a bit into it, he may want to add some comments.
The bamboo spark is a similar device I have locally. There are two things we
noticed so far by looking at the packets with wireshark: 'magic' commands
are sent to the tablet to get it to report the drawings (so we would have to
decode those) and the data send back is non-obvious. There are a few
patterns we recognised so far but we're not at the point where we can get
real information from it.

Cheers,
   Peter

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