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

Possibly Related Threads…
Thread Author Replies Views Last Post
  RockPro64 - EN62368 m.ekstrom 0 149 06-02-2021, 04:55 AM
Last Post: m.ekstrom
  RPI4 Vs Rockpro64 Performance help? Mangled 0 227 05-25-2021, 03:38 PM
Last Post: Mangled
  Booting my RockPro64 from NVMe drive PsySc0rpi0n 3 457 05-02-2021, 01:56 AM
Last Post: LMM
  Unusable ROCKPRO64 drenedo 3 986 03-24-2021, 06:47 AM
Last Post: GuyNoIRQ
  ROCKPro64 (4 GB) "In stock (can be backordered)" TRS-80 3 764 03-19-2021, 04:53 PM
Last Post: TRS-80
  Troubleshooting ROCKPro64 alephnull 3 835 03-04-2021, 03:58 AM
Last Post: alephnull
  Petitboot on RockPro64? new_to_arm 0 364 03-03-2021, 05:00 PM
Last Post: new_to_arm
  Feasibility of mining crypto on RockPro64? epoliqui 2 1,570 02-06-2021, 09:23 AM
Last Post: Mangled
  Performance and Power Demand RockPro64 fotastisch 7 4,407 02-05-2021, 07:45 PM
Last Post: foresto
  ROCKPro64 4GB availability p1trson 5 1,659 12-30-2020, 11:28 AM
Last Post: jussi

Forum Jump:


Users browsing this thread: 1 Guest(s)