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Interrupt GPIO

Craig Totel
Intellectual 585 points
Other Parts Discussed in Thread: TSC2007, TSC2004

 Hello,

 I am trying to configure one of the general purpose I/O pins under Linux to be interrupt driven on the C6A816x (example GPO_IO4).  I understand how to configure this pin as an input or output using the provided GPIO routines (gpio_set_value/gpio_get_value), but not clear how I would configure it to be interrupt driven and connect an ISR or call back routine to it.  We are developing a custom driver and want to use one of the GPIO pins to generate a interrupt to our  driver code.

 Can you provide or point me to some example that does something like this on the integra.

 

Thanks,

Craig

 

  • 0
    TI__Expert 6655 points

    Hi Craig,

    Nothing specific to C6A816X device, follow the same way as how GPIO interrupts are handling in other devices like OMAP, etc.

    For reference you can go through touchscreen driver.

    drivers/input/touchscreen/tsc2004.c or drivers/input/touchscreen/tsc2007.c

    Regards

    Anilkumar

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