Touch screen and QT embedded, some doubts

Hello,

I have some doubts about QT and touchscreen devices and perhpas somebody could give me any answers.

1.- Can I use Touchscreen device with my QT applications???, well, this is a easy asnwer, YES.
2.- My kernel recognize touchscreen device as /dev/input/mouse0, what kind of driver I need to use with QT, linuxtp, MouseMan or IntelliMouse??? With MouseMan and IntelliMouse,touchscreen works but not properly (can not calibrate), and with linuxtp, when I try to calibrate, I have a floating point execption (try to access to /dev/ts, I made a symbolic link ln -s /dev/input/mouse0 /dev/ts).
3.- When I configure my QT embedded 3.3.6, I use this option -qt-mouse-linuxtp, is it correct???

For the moment, that is all.

Best reagards
John Martin