imx6 GPIO

amonica — Fri, 04 Jul 2014 07:35:47 GMT

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

Re: imx6 GPIO

igorpadykov — Tue, 08 Jul 2014 00:20:02 GMT

Hi AGNES

please start with checking links below

http://android.serverbox.ch/?p=972

GPIO 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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