No /dev/gpiochip[n] on RockPro64.
#7
(04-21-2020, 06:41 AM)Gienek Wrote: O! I did not know about such difference between Linux releases for ROCKPro64.
Have you already gathered experience about performance of this new interface? It is very interresting!
I am using a set of own C-functions to handle GPIO. This is very fast and simple, but I miss one functionality: A possibility of async reaction to interrupt from GPIO. I have no clue, how to achieve this in purely user-space process.
Does this new interface allow for something, like select() which returns when GPIO pin changes state?
  BR,
  Gienek.
I'm using libgpiod-1.4.1.
Works very well on my Odroid N2.
Will begin testing on my RockPro64 shortly.

/Faradn


Messages In This Thread
No /dev/gpiochip[n] on RockPro64. - by Faradn - 03-18-2020, 12:27 PM
RE: No /dev/gpiochip[n] on RockPro64. - by tllim - 03-21-2020, 04:41 PM
RE: No /dev/gpiochip[n] on RockPro64. - by Faradn - 03-25-2020, 08:50 PM
RE: No /dev/gpiochip[n] on RockPro64. - by Gienek - 04-20-2020, 04:31 AM
RE: No /dev/gpiochip[n] on RockPro64. - by Faradn - 04-20-2020, 08:53 AM
RE: No /dev/gpiochip[n] on RockPro64. - by Gienek - 04-21-2020, 06:41 AM
RE: No /dev/gpiochip[n] on RockPro64. - by Faradn - 04-21-2020, 08:03 AM

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