Hi Peter,

> just wondering if the DTI-520 gives you serial numbers for the styli or if
> this device uses generic serials.
>  From what I can tell from the tech specs, this devices does not have an
> eraser, right?

Unfortunately I've got no way of knowing, as I only have one stylus to test 
with and don't have access to any others.  It appears to have an eraser on it 
but it doesn't do anything (no USB data when it is used.)  But I can't confirm 
whether it's a limitation of the tablet or if it's not actually an eraser on 
the stylus.

There are only two things I haven't been able to ascertain about the USB 
protocol for the tablet.  One is why there are two proximity values (one is 
set when the stylus gets close, and the other one is set when it gets really 
close) so I'm not sure whether one is actually some sort of tool ID.  The 
other is that when the stylus gets in range, the very first set of coordinates 
(and only the first set) are way off (huge negative values) and they're always 
the same, which I suspect could be a tool ID or possibly a short serial number.

But alas, without access to other styli I'm afraid I can't test any further!

Cheers,
Adam.


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