imx6 GPIO

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imx6 GPIO

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amonica
Contributor II

Hi,

     I wanted to configure the GPIO pin 9 on imx6 board as interrupt. I have added the following configurations

  ret = gpio_request((unsigned int)bridge.nGpio,"Interrupt");

  ret = gpio_direction_input((unsigned int)bridge.nGpio);

  ret = gpio_export((unsigned int)bridge.nGpio, 1);

  bridge.irq = gpio_to_irq((unsigned int)bridge.nGpio);

The interrupts keeps on coming on imx6 but even though my device does not generate any interrupt. Is anything else required to be added on my gpio config side.

Regards,

Amonica

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi AGNES

please start with checking links below

http://android.serverbox.ch/?p=972GPIO interr Android

http://blog.skerpa.com/dschnell/blog/2013/10/27/linux-and-gpio-userspace-interrupts/

Also it may be suefyl to check pad with oscilloscope for actual

signal state.

Best regards

chip

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