[PD] wacom / gemtablet / hid

cyrille henry ch at chnry.net
Tue Dec 22 23:48:27 CET 2009


hello,
i'm running the last ubuntu (9.10), using kernel 2.6.31

hum, i don' really want to spend lot's of time tweaking stuff. 
it is sad to realize that using a wacom use to be very easy but it is no more...

sudo wacdump /dev/input/wacom gives me a segmentation fault...

thanks for your help
Cyrille

Rich E a écrit :
> What distribution are you running?  In the newer Ubuntu's (ex Jaunty), I 
> had to do all sorts of things to get back the old (and working) xorg 
> configuration and stop using udev.  I have a ton of posts about this on 
> the linuxwacom-discuss mailing list and probably this one too, I think I 
> was having the same problems as you were then, and finally got it fixed 
> (right before my laptop was stolen and I bought a macbook :).  It may 
> work better now, probably with more tweaking, as that was 1/2 a year ago.
> 
> One thing to try; do you get any tablet data output using wacdump?
> 
> Good luck getting it working, I'll try to help more if I can.
> 
> Rich
> 
> On Tue, Dec 22, 2009 at 11:21 PM, cyrille henry <ch at chnry.net 
> <mailto:ch at chnry.net>> wrote:
> 
>     argggh.
>     your are right : pd did not have permission to read the input device.
> 
>     starting pd as root help a bit : now both linuxevent and hid can
>     open the device.
>     but they does not send any data...
> 
> 
> 
>     thanks
>     Cyrille
> 
> 
> 
>     Rich E a écrit :
> 
>         Does pd have permissions to open /dev/input/wacom (or any of the
>         event*'s)?
>         On Tue, Dec 22, 2009 at 9:51 PM, cyrille henry <ch at chnry.net
>         <mailto:ch at chnry.net> <mailto:ch at chnry.net
>         <mailto:ch at chnry.net>>> wrote:
> 
>            the problem i have is that both does not work!
>            :-)
> 
>            c
> 
> 
>            Rich E a écrit :
> 
>                The problem that I had with /dev/input/even* devices is
>         that it
>                always changes when you unplug/replug your tablet.
>                 /dev/input/wacom is a symbolic link to the newly created
>         input,
>                no matter what event* it is.
> 
>                On Tue, Dec 22, 2009 at 8:18 PM, Hans-Christoph Steiner
>                <hans at at.or.at <mailto:hans at at.or.at>
>         <mailto:hans at at.or.at <mailto:hans at at.or.at>>
>         <mailto:hans at at.or.at <mailto:hans at at.or.at>
> 
>                <mailto:hans at at.or.at <mailto:hans at at.or.at>>>> wrote:
> 
> 
>                   [hid] uses the input.h struct, which the /dev/input/event*
>                devices
>                   give.  I don't know what /dev/input/wacom outputs.
>          Try using an
>                   /dev/input/event* device.
> 
>                   .hc
> 
> 
>                   On Dec 21, 2009, at 3:12 AM, cyrille henry wrote:
> 
>                       hello
> 
>                       few years go, i used a wacom with the [gemtablet]
>         object.
>                this
>                       was working perfectly.
>                       but i now realize that this object is no more part
>         of Gem
>                (since
>                       3 years).
>                       the dummy object that replace it say that one must use
>                hid instead.
>                       so did i.
> 
>                       but i failed making it work.
> 
>                       i'm using linux and hid from pd svn.
> 
>                       i send a "open /dev/input/wacom" message to the hid
>                object, and
>                       get as only answer : info: open 0
>                       info: device 0
> 
>                       if i start pooling, then the wacom did not work
>         anymore,
>                and i
>                       have to reboot the computer to make it work again.
> 
>                       playing a bit more with that object made pd to crash.
> 
>                       any suggestion to make my wacom work with hid?
>                       any other object that could get data from a wacom?
>                       or should i try to get the old sources of gemtablet to
>                compile
>                       again???
> 
>                       thanks
>                       Cyrille
> 
> 
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