OMAP 5912OSK and touchscreen under Qt/Embedded

OMAP 5912OSK and touchscreen under Qt/Embedded

[Birger Kroon]

Hi list
 
Does anyone here have experience of getting a touchscreen working with Qt/embedded?
 
* I'm currently using the OMAP 5912OSK with the Mistral LCD unit.
* I've got Qt/Embedded up and running on the platform (at least the display). 
* I'm using the latest kernel/patch.
* I see events when I touch the screen so the low level drivers does work correct I beleive.
 
My problem is that I do not know how to connect Qt/E with the touch screen drivers in the correct way. I've testet to set the 'QWS_MOUSE_PROTO' environment variable to different thing, but w/o success. 

- Do I need the tslib to use a TS under Qt/E? 
- Do I have to subclass QWSMouseHandler?

Any input would be much appriciated.

Regards
// Birger 
 
 
Birger Kroon 
Software Engineer 
Automotive Solutions

Teleca Sweden West AB 
Lindholmspiren 9 
SE-417 56 Göteborg 
Sweden 
Tel +46 31 744 80 00 
Fax +46 31 744 80 01 

Direct +46 31 744 80 87 
Mobile +46 703 79 19 11 
birger.kroon@sys.teleca.se 
www.teleca.com

Re: OMAP 5912OSK and touchscreen under Qt/Embedded

[Dirk Behme]

Birger Kroon wrote:
> Does anyone here have experience of getting a touchscreen working with Qt/embedded?
>  
> * I'm currently using the OMAP 5912OSK with the Mistral LCD unit.
> * I've got Qt/Embedded up and running on the platform (at least the display). 
> * I'm using the latest kernel/patch.
> * I see events when I touch the screen so the low level drivers does work correct I beleive.
>  
> My problem is that I do not know how to connect Qt/E with the touch screen drivers in the correct way. I've testet to set the 'QWS_MOUSE_PROTO' environment variable to different thing, but w/o success. 
> 
> - Do I need the tslib to use a TS under Qt/E? 

Yes, you should use tslib for QT/E. Do calibration first 
with tslib and then start QT/E.

Note that OMAP5912 touchscreen is broken in recent git. If 
you use recent git, you should apply

http://linux.omap.com/pipermail/linux-omap-open-source/2006-June/007358.html

as well.

However, latest patch on http://www.muru.com/linux/omap/ 
should be okay (?).

Try to use -tslib to configure QT/E . If I remember 
correctly there is a macro QT_QWS_TSLIB available within QT/E.

Maybe ask google as well.

Hth,

dirk

RE: OMAP 5912OSK and touchscreen under Qt/Embedded

[Birger Kroon]

Thanks for the quick responses...

I did not thought that tslib was needed, but I will try it and get back here if I can't figure it out. :)

Thanks again 
// Birger


Birger Kroon 
Software Engineer 
Automotive Solutions

Teleca Sweden West AB 
Lindholmspiren 9 
SE-417 56 Göteborg 
Sweden 
Tel +46 31 744 80 00 
Fax +46 31 744 80 01 

Direct +46 31 744 80 87 
Mobile +46 703 79 19 11 
birger.kroon@sys.teleca.se 
www.teleca.com