Poll() function

mathew_k_t — Mon, 12 Mar 2018 04:36:50 GMT

Hi,

I'm using an imx6ull evk, in which I have implemented a button interrupt. The interrupt working perfectly. But I would like to indicate the interrupt to an application. While searching for various solutions, I found poll().

1. Whether poll() is the solutions for indication interrupt to an application?Confirm it?

2. How to implement poll(), depended variables etc?

Regards

Re: Poll() function

igorpadykov — Mon, 12 Mar 2018 08:01:47 GMT

Hi mathew_k

one can look on

embedded - Polling or Interrupt based method - Stack Overflow

application can know interrupt status polling (for example for gpio)

GPIOx_PSR register, described in sect.28.5.3 GPIO pad status register (GPIOx_PSR)

i.MX6ULL Reference Manual

https://www.nxp.com/docs/en/reference-manual/IMX6ULLRM.pdf

Best regards
igor
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