RS232 touch screen driver installation for RedHat 7.3 and XFree86 4.2.0
(C) 2006 Chang-Hsieh Wu

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QUICKSTART GUIDE
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1. setup xfree driver
   a. decompress xfhiddrv_drv.tar.gz
      #gzip -d xfhiddrv_drv.tar.gz
      #tar xvf xfhiddrv_drv.tar 
   b. Copy xfhiddrv_drv.o to /usr/X11R6/lib/modules/input/ or other place where 
      your X is installed.
      #cp   xfhiddrv_drv.o /usr/X11R6/lib/modules/input
   c. Add the following lines into XF86Config-4(maybe in /etc/X11)file.
      If your system will not have a mouse, then use "CorePointer" instead of
      "SendCoreEvents" in the "ServerLayout" section.  Set "ServerLayout"  section
      as the following.

#	InputDevice    "DevInputMice" "AlwaysCore"
        InputDevice    "HID TOUCH" "SendCoreEvents"


   d. Add the a new "InputDevice" Section as the following.
      I. RS232 device:
Section "InputDevice"
        Identifier  "HID TOUCH"
        Driver      "xfhiddrv"
        Option      "Device" "/dev/ttyS0"
        Option      "ScreenNo" "0"
        Option      "Rotation" "0"
        Option      "SwapY" "0"
        Option      "DebugLevel" "0"
        Option      "UpSound" "0"
        Option      "DownSound" "1"
EndSection

    In the item of "Device", you must depend on your computer. So, it can be the value, 
such as the followings.
        "/dev/ttySx"        x=0,1,..2, n (RS232 device)

   e. Press Ctrl+Alt+Backspace to restart X server. 

2. Setup and run Linear Utility:
   I. Linearity Utility:
   a. installation 
      step 1. decompress LinearAp.tar.gz 
         #gzip -d LinearAp.tar.gz
         #tar xvf LinearAp.tar.gz 
      step 2. copy linearity utility to /usr/local/bin
         #cp ./LinearAp /usr/local/bin
   b. Run linearity utility
      I   Before Run the application settings
          * change task bar to auto hide
            right click task bar panel->select "panel" -> Select "Hiding policy"->Select "Auto Hide"

      II. RS232 device
      #./LinearAp  /dev/usb/ttySx n
      where x=0,1,2...n, n = 4 or 9 <default>   
      
      
