CHANGES
  
  - 0.3 - Created based off of scanner & INSTALL from the original touchscreen
    driver on freshmeat (http://freshmeat.net/projects/3mtouchscreendriver)
  - Amended for linux-2.4.18, then 2.4.19
  
  - 0.5 - Complete rewrite using Linux Input in 2.6.3
     Unfortunately no calibration support at this time
  
  - 1.4 - Multiple changes to support the EXII 5000UC and house cleaning
     Changed reset from standard USB dev reset to vendor reset
     Changed data sent to host from compensated to raw coordinates
     Eliminated vendor/product module params

     Performed multiple successful tests with an EXII-5010UC

  
  SUPPORTED HARDWARE:
  
          All controllers have the Vendor: 0x0596 & Product: 0x0001
  
  
          Controller Description          Part Number
          ------------------------------------------------------
  
          USB Capacitive - Pearl Case     14-205  (Discontinued)
          USB Capacitive - Black Case     14-124  (Discontinued)
          USB Capacitive - No Case        14-206  (Discontinued)
  
          USB Capacitive - Pearl Case     EXII-5010UC
          USB Capacitive - Black Case     EXII-5030UC
          USB Capacitive - No Case        EXII-5050UC
  
  DRIVER NOTES:
  
  Installation is simple, you only need to add Linux Input, Linux USB, and the 
  driver to the kernel.  The driver can also be optionally built as a module.
  
  This driver appears to be one of possible 2 Linux USB Input Touchscreen
  drivers.  Although 3M produces a binary only driver available for
  download, I persist in updating this driver since I would like to use the
  touchscreen for embedded apps using QTEmbedded, DirectFB, etc. So I feel the

  logical choice is to use Linux Input.

  
  Currently there is no way to calibrate the device via this driver.  Even if
  the device could be calibrated, the driver pulls to raw coordinate data from
  the controller.  This means calibration must be performed within the
  userspace.
  
  The controller screen resolution is now 0 to 16384 for both X and Y reporting
  the raw touch data.  This is the same for the old and new capacitive USB
  controllers.
  
  Perhaps at some point an abstract function will be placed into evdev so 
  generic functions like calibrations, resets, and vendor information can be 
  requested from the userspace (And the drivers would handle the vendor specific
  tasks).

  TODO:
  
  Implement a control urb again to handle requests to and from the device
  such as calibration, etc once/if it becomes available.

  DISCLAIMER:

  
  I am not a MicroTouch/3M employee, nor have I ever been.  3M does not support 
  this driver!  If you want touch drivers only supported within X, please go to:

  http://www.3m.com/3MTouchSystems/

  
  THANKS:
  
  A huge thank you to 3M Touch Systems for the EXII-5010UC controllers for
  testing!