linux/Documentation/usb/mtouchusb.rst
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   1================
   2mtouchusb driver
   3================
   4
   5Changes
   6=======
   7
   8- 0.3 - Created based off of scanner & INSTALL from the original touchscreen
   9  driver on freecode (http://freecode.com/projects/3mtouchscreendriver)
  10- Amended for linux-2.4.18, then 2.4.19
  11
  12- 0.5 - Complete rewrite using Linux Input in 2.6.3
  13  Unfortunately no calibration support at this time
  14
  15- 1.4 - Multiple changes to support the EXII 5000UC and house cleaning
  16  Changed reset from standard USB dev reset to vendor reset
  17  Changed data sent to host from compensated to raw coordinates
  18  Eliminated vendor/product module params
  19  Performed multiple successful tests with an EXII-5010UC
  20
  21Supported Hardware
  22==================
  23
  24::
  25
  26        All controllers have the Vendor: 0x0596 & Product: 0x0001
  27
  28
  29        Controller Description          Part Number
  30        ------------------------------------------------------
  31
  32        USB Capacitive - Pearl Case     14-205  (Discontinued)
  33        USB Capacitive - Black Case     14-124  (Discontinued)
  34        USB Capacitive - No Case        14-206  (Discontinued)
  35
  36        USB Capacitive - Pearl Case     EXII-5010UC
  37        USB Capacitive - Black Case     EXII-5030UC
  38        USB Capacitive - No Case        EXII-5050UC
  39
  40Driver Notes
  41============
  42
  43Installation is simple, you only need to add Linux Input, Linux USB, and the
  44driver to the kernel.  The driver can also be optionally built as a module.
  45
  46This driver appears to be one of possible 2 Linux USB Input Touchscreen
  47drivers.  Although 3M produces a binary only driver available for
  48download, I persist in updating this driver since I would like to use the
  49touchscreen for embedded apps using QTEmbedded, DirectFB, etc. So I feel the
  50logical choice is to use Linux Input.
  51
  52Currently there is no way to calibrate the device via this driver.  Even if
  53the device could be calibrated, the driver pulls to raw coordinate data from
  54the controller.  This means calibration must be performed within the
  55userspace.
  56
  57The controller screen resolution is now 0 to 16384 for both X and Y reporting
  58the raw touch data.  This is the same for the old and new capacitive USB
  59controllers.
  60
  61Perhaps at some point an abstract function will be placed into evdev so
  62generic functions like calibrations, resets, and vendor information can be
  63requested from the userspace (And the drivers would handle the vendor specific
  64tasks).
  65
  66TODO
  67====
  68
  69Implement a control urb again to handle requests to and from the device
  70such as calibration, etc once/if it becomes available.
  71
  72Disclaimer
  73==========
  74
  75I am not a MicroTouch/3M employee, nor have I ever been.  3M does not support
  76this driver!  If you want touch drivers only supported within X, please go to:
  77
  78http://www.3m.com/3MTouchSystems/
  79
  80Thanks
  81======
  82
  83A huge thank you to 3M Touch Systems for the EXII-5010UC controllers for
  84testing!
  85