[Linuxwacom-devel] X server interacts with wacom kern based app

[<yos...@gm...>]

Hi,
I'm using a Debian Etch with kernel 2.6.18-5-k7, linuxwacom-0.7.8-3, Xserver
7.1. I'm developing software for experimental cognitive psicology based on
the Wacom tablet. I need to obtain the data frames without no delay and at
the highest rate, so my programs comunicates directly with the wacom kernel
driver throught a slightly modified version of the API that apperars in the
file wactablet.c.
In console ttyX, my programs obtain data at real time and with very small
delays. The problem comes when trying to run my applications in windowed
mode (cause i'm using OpenGL and GLUT for graphical output). If I don't load
the X wacom driver, the X server yet recognices the tablet as a generic
pointer (although misconfigured), my application works but there's quite a
big delay (smaller than the one you obtain throught the X server event
system, but yet too big). And no matter whether I unload the usbhid module.
If I configure properly the X wacom device, my application doesn't receive
any data at all, but the tablet works well with X event system. xsetpointer
has no effect (neither with ps/2 or usb mouses). If i reconfigure the wacom
not allowing it to send CoreEvents, the tablet doesn't works at all with X
events, but neither it does with my apps (or the wacdump program they're
based in). As a conclusion, i don't know what to do to make X server simply
forget about the tablet but with wacom's kernel module loaded. Any ideas?
Thank you in advance for your help and for the very well documented wacom
driver (it's been really helpfull saving me from developing in MacOS).