nanogui: Thread: Calibration

Hello,

Can somebody explain how to use tpcal program? An attempt to run it on iPAQ gives a message "Bus Error".

Thank you,

Leah.

Hi, 
I am now using mou_ipaq driver for my touch screen. But I can't access
some part on the side of my microwindow, and I think I need to do the
calibration. But in the mou_ipaq.c, I don't see a function to read in
the value-file after calibration like /etc/pointercal. Nor did the file
include some transformation function. Do you know how should I do the
calibration with this?? 
The calibration program I use is tpcal and it returns 7 numbers.

thank you

Vic

On the Ipaq, much of the calibration is handled by the kernel driver and the 
touchscreen hardware.  You simply determine the minimum and maximum values 
for both x and y and pass them to the kernel.  Check www.handhelds.org for a 
few Ipaq calibrators.

Jordan

On Thursday 16 August 2001 07:47, victor mentioned:
> Hi,
> I am now using mou_ipaq driver for my touch screen. But I can't access
> some part on the side of my microwindow, and I think I need to do the
> calibration. But in the mou_ipaq.c, I don't see a function to read in
> the value-file after calibration like /etc/pointercal. Nor did the file
> include some transformation function. Do you know how should I do the
> calibration with this??
> The calibration program I use is tpcal and it returns 7 numbers.
>
> thank you
>
> Vic
>
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