On 18/01/11 16:05, Peter Hutterer wrote:
> On Mon, Jan 17, 2011 at 04:01:43PM -0600, Chris Bagwell wrote:
>> All references I've seen for wacom pen tool packets are 7 bytes or 9
>> bytes; especially for serial and ISDV4 devices.
OK, I'll look elsewhere, try every other xinpout driver, there might
have been something that used the same protocol.

>> You didn't mention values changing based on tool pressure.  If no
>> pressure then its surely not a wacom.
Correct. The only 'pressure' is near the tablet or on the tablet.

>> There is a patch you can goolge (xf86-input-wacom_git-20100511.patch)
>> that contains the layout of wacom serial packets.
OK. Definitely not that protocol.

> 9600 indicates it's not one of the tablets we support, that's for sure. I
> think the old Intuos 1 and 2 had 9600 baud, so _maybe_ it's one of them.
It's from around 2000, but I it isn't wacom manufactured (it is numonics
- they moved onto electronic whiteboards and never had a linux driver).

> the format with the highest bit set in byte 1 but not in the others is
> similar to ISDV4. the button flags in the first byte are a different layout
> though. so it's similar to some extent, but definitely not the protocol we
> currently support.
Are wacom the only tablets in the market today ?
Or the only ones with linux support still being developed ?

I notice that Fedora dropped a lot of older xorg-x11-drv- input modules,
that may have been for older tablets. I'm going to give them a try in
case they might work.

>From the wiki dev pages, if I wanted to write/modify to suit this
device, it seems I would need kernel code/module and x module, is this
correct ?

Since wacom is in active development, would it make sense to base my
code on the current wacom code ?

Chris and Peter: Thanks for the earlier respones, David.

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