[PD] wacom / gemtablet / hid

cyrille henry ch at chnry.net
Tue Dec 22 21:50:17 CET 2009

hello Rich,

thanks for the info,
unfortunatly, linuxevent is not able to open the wacom.
it's just like with hid.
i try to open both /dev/input/wacom and /dev/input/event8 and got an error in pd.


Rich E a écrit :
> I'm not in front of a Linux machine at the moment, but I was using a 
> Wacom tablet in linux for the last couple years.  [HID] doesn't work 
> with calling the symbolic links in /dev/input/. I was able to get the 
> tablet to send out data with [hid] by going through the [open $1( with 
> all indeces, clicking on [info(, then seeing if it was the tablet.  I 
> tried various ways to automate this with the output info strings but 
> never got anything to work consistently.  This, and that I didn't like 
> the way control data was output, made me switch back to using 
> [linuxevent].  It works just find with [open /dev/input/wacom ( and the 
> data is easy to interpret in pd.  I attached a (very dirty) patch that I 
> used to route the control data with [linuxevent], hope it saves you some 
> time.
> Tablets don't seem to work well with [hid] in any platform (not in 
> windows either, right?), not at all in OS X, the platform I am now on.  
> I'm re-writing a general purpose [tablet] external right now that will 
> at first only work in OS X, but hopefully it can cover all platforms 
> later on down the road.  It is just that the API is different for the 
> three big ones, mac, linux, and windows.
> regards,
> Rich
> On Mon, Dec 21, 2009 at 12:12 PM, cyrille henry <ch at chnry.net 
> <mailto:ch at chnry.net>> 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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