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CHANGES
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- 0.3 - Created based off of scanner & INSTALL from the original touchscreen
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driver on freshmeat (http://freshmeat.net/projects/3mtouchscreendriver)
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- Amended for linux-2.4.18, then 2.4.19
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- 0.5 - Complete rewrite using Linux Input in 2.6.3
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Unfortunately no calibration support at this time
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- 1.4 - Multiple changes to support the EXII 5000UC and house cleaning
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Changed reset from standard USB dev reset to vendor reset
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Changed data sent to host from compensated to raw coordinates
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Eliminated vendor/product module params
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Performed multiple successful tests with an EXII-5010UC
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SUPPORTED HARDWARE:
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All controllers have the Vendor: 0x0596 & Product: 0x0001
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Controller Description Part Number
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------------------------------------------------------
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USB Capacitive - Pearl Case 14-205 (Discontinued)
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USB Capacitive - Black Case 14-124 (Discontinued)
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USB Capacitive - No Case 14-206 (Discontinued)
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USB Capacitive - Pearl Case EXII-5010UC
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USB Capacitive - Black Case EXII-5030UC
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USB Capacitive - No Case EXII-5050UC
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DRIVER NOTES:
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Installation is simple, you only need to add Linux Input, Linux USB, and the
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driver to the kernel. The driver can also be optionally built as a module.
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This driver appears to be one of possible 2 Linux USB Input Touchscreen
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drivers. Although 3M produces a binary only driver available for
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download, I persist in updating this driver since I would like to use the
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touchscreen for embedded apps using QTEmbedded, DirectFB, etc. So I feel the
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logical choice is to use Linux Input.
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Currently there is no way to calibrate the device via this driver. Even if
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the device could be calibrated, the driver pulls to raw coordinate data from
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the controller. This means calibration must be performed within the
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userspace.
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The controller screen resolution is now 0 to 16384 for both X and Y reporting
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the raw touch data. This is the same for the old and new capacitive USB
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controllers.
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Perhaps at some point an abstract function will be placed into evdev so
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generic functions like calibrations, resets, and vendor information can be
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requested from the userspace (And the drivers would handle the vendor specific
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tasks).
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ADDITIONAL INFORMATION/UPDATES/X CONFIGURATION EXAMPLE:
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http://groomlakelabs.com/grandamp/code/microtouch/
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TODO:
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Implement a control urb again to handle requests to and from the device
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such as calibration, etc once/if it becomes available.
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DISCLAIMER:
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I am not a MicroTouch/3M employee, nor have I ever been. 3M does not support
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this driver! If you want touch drivers only supported within X, please go to:
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http://www.3m.com/3MTouchSystems/downloads/
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THANKS:
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A huge thank you to 3M Touch Systems for the EXII-5010UC controllers for
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testing!
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