nanogui: calibration & ts in raw mode
Subject:
Re: [nanogui] calibration & ts in raw mode
From:
"Massimiliano Turco" ####@####.####
Date:
17 May 2004 15:12:08 +0100
Message-Id: <002c01c43c19$2304c2a0$7e0614ac@tecne126>
Thanks for the explation, Greg. So this is not a kernel driver problem.
What do you exactly mean when you wrote "The nxcal program should be run
first, before running other programs.".
If I put it in the launcher.cnf as $startup nxcal is this right? Or not?
Thanks for your help
max
----- Original Message -----
From: "Greg Haerr" ####@####.####
To: "Massimiliano Turco" ####@####.####
####@####.####
Sent: Monday, May 17, 2004 3:54 PM
Subject: Re: [nanogui] calibration & ts in raw mode
> > I have successfully patched my 0.89 version with the 0.90 standard
calibration feature (nxcal program). I ARM-linux
> cross-compiled it and run the 0.90 standard launcher adding $startup nxcal
in the launcher config file.
>
> The nxcal program should be run first, before running other programs.
>
>
> > It seems to work... apparently... Launching launcher.sh the nxcal
starts, the nxcal.dat is generated. After
> calibration is performed then launcher desktop is displayed. On the
launcher desktop I have linked a stillpicture viewer
> application and a recal (./nxcal -f -d nxcal.dat).
> I launch my stillpicture application but its button are completely
un-calibrated.
> I am strarting to suspect it could be a kernel driver problem. I see that
the nxcal use the microwindows driver, for
> example the ipaq touchscreen dev/h3600_tsraw, for calibration in ***raw
mode***, so I suspect that in order to perform
> calibration the driver has to be in raw mode state.
>
>
> The calibration works by setting a NULL transform in Microwindows, setting
> the mouse driver to RAW mode (this is internal to Microwindows, and
> during this mode the meaning of x,y values in the mouse events changes),
> and then setting the new transform using GrSetTransform and writing a
> data file. The next time you start Microwindows, nxcal should be run with
> the -d parameter with the newly created datafile.
>
> The kernel values supplied by the kernel mouse driver don't change, just
> Microwindows' interpretation of them, with jitter removed as well.
>
> Regards,
>
> Greg
>
>
>
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