[Linuxwacom-discuss] Developer-type questions

[Trenton S. <tws...@tr...>]

Hi,

My name is Trenton Schulz and we are looking at improving our tablet 
support for Qt 4.0. It's neat to see the linuxwacom project active and 
I assume it is the spiritual successor to the information that was 
found on Frank Lepid's webpage. And since you are active, I thought 
that you guys may be able to answer some questions for me. :) I 
apologize in advance if these have already been asked, but I could not 
find anything in the archives.

Overall, you have a lot of documentation for setting up the tablet on 
your machine. This is very good. However, I'm wondering if there's any 
information on developing for the device, more specifically, what 
valuators return what values. Is the information reported on Lepid's 
page still accurate? Repeating here for clarity,

  The valuators are reported as follow:
	1.  	 X position.
	2.  	 Y position.
	3.  	 Pressure or wheel for 4D mouse and Lens cursor.
	4.  	 Tilt X or rotation for 4D mouse.
	5.  	 Tilt Y.
	6.  	 Wheel position.

I'm wondering about how to get tangental pressure. I also would like 
the hi-resolution coordinates, IIRC, the X and Y position reported back 
in valuators 1 and 2 are low-res, but perhaps that's changed. Also, how 
does one get the serial number reported to them in the Xinput events? 
Is adding the serial number into the XF86Config sufficient?

Any information you can provide would greatly improve our tablet 
support on Linux for Qt 4.0. :)

We are not on this list, so if you could respond personally also, that 
would be great.

Thanks in advance,

-- 
Trenton Schulz
Trolltech AS