Qt embedded framebuffer, how to multi touch screen?

[webquinty]

Hello,

I have my own system with Qt embedded and TsLib to support resistive touch screen.
All works fine, but this is the moment to upgrade my system.
I would like to use a multi touch screen but I am not sure if it is possible.
I have several doubts:
1.- Tslib support only single touch screen, or can support multi touch screen??
2.- If the answer is "no", what I need to capture information from touch screen and use it into Qt embedded.
3.- In others forums I found this:
export QWS_MOUSE_PROTO=LinuxMultiTouch:/dev/input/event0
What is LinuxMultiTouch?? Is a plugin??

Best regards.
John Martin.

[Luc4]

As far as I know tslib only supports single touch.
If the driver you have in your kernel respect the multi touch protocol (http://www.kernel.org/doc/Documentat...h-protocol.txt), then you can write a plugin to read the device and interpret the data according to the protocol. Maybe this can be of help as well: http://gitorious.org/webkit/webkit/b...ntSenderQt.cpp.
I read about this LinuxMultiTouch as well, but I found nothing about it. It may be very interesting!

[webquinty]

Hello Luc4,

Thank you.
LinuxMultiTouch is a module include in kernel (2.6.38).

Best regads
John

[Luc4]

What do you mean? export QWS_MOUSE_PROTO=LinuxMultiTouch:/dev/input/event0 seems to suggest there is a mouse plugin named LinuxMultiTouch...

[webquinty]

I am not sure, but it is a kernel option.
Next week, I am going to download 2.6.38 and I will check it.

Best regards
John