failed to change group ownership of /sys/devices/virtual/gpio/gpio23/direction: No such file or director

[born2net]

Hello,
I installed pi-gpio on latest Raspian:

root@raspberrypi:~# uname -a
Linux raspberrypi 4.1.6-v7+ #810 SMP PREEMPT Tue Aug 18 15:32:12 BST 2015 armv7l GNU/Linux

tried running the sample script both as root and also installed the admin tool and still I get the same error on the latest revision Raspberry pi 2

Error when trying to open pin 16
gpio-admin: failed to change group ownership of /sys/devices/virtual/gpio/gpio23/direction: No such file or director

any help is appreciated

regards

Sean

[tjanson]

Did you follow the installation instructions, in particular installing quick2wire-gpio-admin?

PS. Possibly related:

• gpio-admin: failed to change group ownership of /sys/devices/virtual/gpio/gpio22/direction: No such file or directory romilly/quick2wire-gpio-admin#5
• /sys/devices/virtual/gpio doesn't exist romilly/quick2wire-gpio-admin#10
• GPIO-Admin and Read [Solved] #22

[born2net]

yes I did follow and did add the quick2wire-gpio-admin
but still same error :(

[tjanson]

See the issues I linked above, those people apparently encountered the same problem (and possibly solved it).

It’s definitely a gpio-admin problem, and that program has been abandoned for several years. That’s why I made some effort to switch to a different tool, see #27 – you can give that branch a try. (It worked fine when I wrote it, but I haven’t used it recently.)

I’ll close this as upstream (again see the issues linked above), but feel free to ask further questions if you don’t make progress.