IMX6DQ ONOFF button configure in QNX

[julesg]

Hello, we are using QNX on an iMX6 board. I need to configure the ONOFF button so that:

1. a long press and hold (greater than 5 sec) will cause entire system to shut down. This is working already with the code I have
2. a short press and hold (say 2 seconds) will cause an interrupt to trigger in which case SW will shutdown all processes before shutting down the system.

Item #1 seems to work and I am able to detect button presses via IRQ # 36 however  my questions are now  as follows:

1. How do IRQ#36 to trigger on a rising or falling edge of the ONOFF button?
2. How do I configure the time the user has to press the button before an interrupt is triggered?

Thanks.

[igorpadykov]

Hi Jules

ONOFF is decribed in sect. 10.5 i.MX6DQ Reference Manual (rev.2  7/2014)

regarding A and B, I am afraid these are not configurable.

Best regards

igor

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