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BACK and HOME KEY of LCD implementation using touch controller MSG2133

Srinivas SM
Prodigy 165 points
Other Parts Discussed in Thread: AM3703, TSC2007

Dear friends,

I am using customized beagleboard am3703 controller. With Himax LCD and Touch MSG2133 controller.

my touch  controller is working properly  but , The BACK , HOME AND SERCH Key of My LCD  was not working.

Can anybody suggest what may be the issue??

Thanks & regards

Srinivas S M

  • 0
    TI__Guru 65405 points

    Hi Srinivas,

    Could you specify what OS, which distribution and version you are using? Are you make some changes in sources related to touch screen?

    BR

    Tsvetolin Shulev

  • 0 in reply to Cvetolin Shulev-XID
    Prodigy 165 points

    HI  Cvetolin Shulev,

    Thanks for the reply,

    I am using android gingerbread  2.6.32 kernel.

    i am using the file tsc2007.c and modified according to  MSG2133 controller interfaced through I2c.

    Thanks & Reagrds

    Srinivas S M

  • 0 in reply to Srinivas SM
    TI__Guru 65405 points

    There are various possible reasons for the issue: some software problem with the driver or incorrect calibration of the touch screen.

    I recommend you to add some debug messages in the driver where handling the touch events. An other possible way for debugging is to cat /dev/input/eventX, where X = 0 or 1 or 2 ...  (eventX is touch screen). Each touching the screen generates some output but the format of data is not suitable for human reading.

    You should choose debugging way.

    BR

    Tsvetolin Shulev

  • 0 in reply to Cvetolin Shulev-XID
    Prodigy 165 points

    Hi ,

    Thanks for the help , after debugging i come to know the  issue, Now issue is resolved and my  Keys, BACK and HOME are working .

    The issue is in input_report_key()function itself.

    once again thanks fort the help

    Regards

    Srinivas S M