linux/Documentation/usb/mtouchusb.txt
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   1CHANGES
   2
   3- 0.3 - Created based off of scanner & INSTALL from the original touchscreen
   4  driver on freecode (http://freecode.com/projects/3mtouchscreendriver)
   5- Amended for linux-2.4.18, then 2.4.19
   6
   7- 0.5 - Complete rewrite using Linux Input in 2.6.3
   8   Unfortunately no calibration support at this time
   9
  10- 1.4 - Multiple changes to support the EXII 5000UC and house cleaning
  11   Changed reset from standard USB dev reset to vendor reset
  12   Changed data sent to host from compensated to raw coordinates
  13   Eliminated vendor/product module params
  14   Performed multiple successful tests with an EXII-5010UC
  15
  16SUPPORTED HARDWARE:
  17
  18        All controllers have the Vendor: 0x0596 & Product: 0x0001
  19
  20
  21        Controller Description          Part Number
  22        ------------------------------------------------------
  23
  24        USB Capacitive - Pearl Case     14-205  (Discontinued)
  25        USB Capacitive - Black Case     14-124  (Discontinued)
  26        USB Capacitive - No Case        14-206  (Discontinued)
  27
  28        USB Capacitive - Pearl Case     EXII-5010UC
  29        USB Capacitive - Black Case     EXII-5030UC
  30        USB Capacitive - No Case        EXII-5050UC
  31
  32DRIVER NOTES:
  33
  34Installation is simple, you only need to add Linux Input, Linux USB, and the 
  35driver to the kernel.  The driver can also be optionally built as a module.
  36
  37This driver appears to be one of possible 2 Linux USB Input Touchscreen
  38drivers.  Although 3M produces a binary only driver available for
  39download, I persist in updating this driver since I would like to use the
  40touchscreen for embedded apps using QTEmbedded, DirectFB, etc. So I feel the
  41logical choice is to use Linux Input.
  42
  43Currently there is no way to calibrate the device via this driver.  Even if
  44the device could be calibrated, the driver pulls to raw coordinate data from
  45the controller.  This means calibration must be performed within the
  46userspace.
  47
  48The controller screen resolution is now 0 to 16384 for both X and Y reporting
  49the raw touch data.  This is the same for the old and new capacitive USB
  50controllers.
  51
  52Perhaps at some point an abstract function will be placed into evdev so 
  53generic functions like calibrations, resets, and vendor information can be 
  54requested from the userspace (And the drivers would handle the vendor specific
  55tasks).
  56
  57TODO:
  58
  59Implement a control urb again to handle requests to and from the device
  60such as calibration, etc once/if it becomes available.
  61
  62DISCLAIMER:
  63
  64I am not a MicroTouch/3M employee, nor have I ever been.  3M does not support 
  65this driver!  If you want touch drivers only supported within X, please go to:
  66
  67http://www.3m.com/3MTouchSystems/
  68
  69THANKS:
  70
  71A huge thank you to 3M Touch Systems for the EXII-5010UC controllers for
  72testing!
  73
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