Touchscreen calibration utility

[Erik de Castro Lopo-23]

Hi all,

I'm looking for a generic touchscreen calibration utility, the kind
than prompts the user to press on the four corners of the screen.

Does something like this exist?

Cheers,
Erik
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  Erik de Castro Lopo
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[Daniel Stone]

On Fri, Nov 10, 2006 at 10:21:27PM +1100, Erik de Castro Lopo wrote:
> I'm looking for a generic touchscreen calibration utility, the kind
> than prompts the user to press on the four corners of the screen.
>
> Does something like this exist?

Hi,
http://svn.berlios.de/wsvn/tslib/trunk/tslib/tests/ts_calibrate.c?op=file&rev=0&sc=0

Cheers,
Daniel


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[markus (Bugzilla)-4]

Eric,

> I'm looking for a generic touchscreen calibration utility, the kind
> than prompts the user to press on the four corners of the screen.
>
> Does something like this exist?
Not being a xorg specialist, I know a calibration utility from binstead. But
it only works with one specific brand of touch screens. The problem I see in
your wish is that touchscreens tend to deliver their signals in different
formats and in different interfaces. And that makes it hard to develop some
generic approach. You are right in your assumption that touchscreens
basically all do the same thing. They all produce x and y coordinates.
Though, some yield more data like the strength of the impression and so on.
There are also different technologies to measure the user's activities.

Sorry that I could not help. But I do understand and support your issue and
I'd be interested to hear from you if you have found anything in that
direction.

Best wishes,

Markus

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[Cliff Brake]

On 11/10/06, Erik de Castro Lopo <mle+xorg@...> wrote:
> Hi all,
>
> I'm looking for a generic touchscreen calibration utility, the kind
> than prompts the user to press on the four corners of the screen.

Hello Erik,

As already mentioned, tslib includes a calibration utility.  tslib is
pretty much the standard for handling/processing touchscreen data on
ARM systems.

There is also an X based calibration utility that is part of the GPE project:

http://www.openembedded.org/repo/org.openembedded.dev/packages/xtscal/xtscal_0.6.3.bb

GPE can be found: http://gpe.linuxtogo.org/download/source

Cliff

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Cliff Brake
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