qt mouse

First, down load Qt version 3.1.2 from the Trolltech web site.

Then apply this patch to the Qt source code and use the following commands on your PC to build Qt:

export QTDIR=`pwd`
./configure -embedded arm -qt-mouse-linuxtp -DQT_QWS_ADS
gmake

Put the 'lib' directory on your board (a conventient way to do this is with NFS, alternatively, you could use a jffs or cramfs on the on-board flash memory).

To run a Qt program on your board, use the following commands (assuming that the lib directory is in /nfs/qt/lib):

export QTDIR=/nfs/qt
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$QTDIR/lib
export QWS_MOUSE_PROTO=linuxtp

For a PS2 mouse the last line should be changed to:

export QWS_MOUSE_PROTO=IntelliMouse

For a serial mouse:

export QWS_MOUSE_PROTO=Microsoft

To run the example in $QTDIR/examples/widgets:

./widgets -qws

Here is a calibration program (adapted from Opie) that you can use to calibrate the touch screen. This program saves the calibration parameters in the file /etc/pointercal.

 For a USB mouse, use:

      export QWS_MOUSE_PROTO=IntelliMouse


and replace /dev/psaux with a link to /dev/input/mice, i.e.

      cd /dev
      rm psaux
      ln -s input/mice psaux


Qt will see the USB mouse as a PS2 mouse.

To configure the kernel to support USB mice, be sure the following are enabled in your kernel configuration:

      CONFIG_INPUT=y
      CONFIG_INPUT_MOUSEDEV=y
      CONFIG_USB_HID=y
      CONFIG_USB_HIDINPUT=y

http://blog.sina.com.cn/s/blog_48d63030010002i4.html