@Leonardo : thanks.
@Kambiz : thanks

for starters search "buildroot" in google. Go to their website or go here directly. pick a version you like but I recommend the ones below 2013 because the higher versions didn't work for me. Download and extract it then go in the directory in which you extracted the archive and type make menuconfig (it might complain about ncurses in that case install libncurses I installed it using this command: sudo apt-get install libncurses5). Choose the packages and configurations and then press Escape key untill you are prompted to save changes then say yes and simply do a make. Remember to choose proper toolchain and compiler before. If you have any further questions feel free to ask here.

no the same one.
first i run my program . it doesn't work. then run ts_calibrate but it works. then run demo in mini2440 but the touch was worked, but when i run the example of the Qt4.6.3 in example folder (/opt/qt....4.6.3/example/...) the touch doesn't work. all of them in one console.
these are my system info:
[root@FriendlyARM /udisk]# cd /dev/input/
[root@FriendlyARM input]# ls
event0 mice

[root@FriendlyARM input]# cat event0
7�G7H
�7!H7��7&am
p;#65533;�
�7��7.�

after each touch show me characters like these(my touch work)

===============================================

i change this to:
export QWS_MOUSE_PROTO="tslib:/dev/input/event0
IntelliMouse:/dev/input/mice"
but nothing happen.