gpio-admin: failed to change group ownership

[geert van moer]

Has anyone a solution for this problem or a work around?

I'm tring to install quick on the latest model of The Pi.

pi@raspberrypi ~ $ git clone git://github.com/quick2wire/quick2wire-gpio-admin.git ~/gpio-admin && cd ~/gpio-admin

Cloning into '/home/pi/gpio-admin'...

remote: Counting objects: 184, done.

remote: Total 184 (delta 0), reused 0 (delta 0), pack-reused 184

Receiving objects: 100% (184/184), 41.82 KiB, done.

Resolving deltas: 100% (86/86), done.

pi@raspberrypi ~/gpio-admin $ make

gcc -Wall -O2 src/gpio-admin.c -c -o out/Linux-armv7l/gpio-admin.o

gcc   out/Linux-armv7l/gpio-admin.o   -o out/Linux-armv7l/gpio-admin

gzip -c man/gpio-admin.1 > out/gpio-admin.1.gz

pi@raspberrypi ~/gpio-admin $ make

make: Nothing to be done for 'all'.

pi@raspberrypi ~/gpio-admin $ sudo make install

mkdir -p /usr/local/bin/

install out/Linux-armv7l/gpio-admin /usr/local/bin/

mkdir -p /usr/local/share/man/man1/

install out/*.1.gz /usr/local/share/man/man1/

groupadd -f --system gpio

chgrp gpio /usr/local/bin/gpio-admin

chmod u=rwxs,g=rx,o= /usr/local/bin/gpio-admin

pi@raspberrypi ~/gpio-admin $ sudo adduser pi gpio

The user `pi' is already a member of `gpio'.

pi@raspberrypi ~/gpio-admin $ exec su -l pi

Password: 

pi@raspberrypi ~ $ gpio-admin export 17

gpio-admin: failed to change group ownership of /sys/devices/virtual/gpio/gpio17/direction: No such file or directory

pi@raspberrypi ~ $ gpio-admin export 18

gpio-admin: failed to change group ownership of /sys/devices/virtual/gpio/gpio18/direction: No such file or directory

pi@raspberrypi ~ $ gpio-admin export 21

gpio-admin: failed to change group ownership of /sys/devices/virtual/gpio/gpio21/direction: No such file or directory

pi@raspberrypi ~ $ 

[Andrew Scheller]

See https://github.com/quick2wire/quick2wire-gpio-admin/issues/5 and
https://github.com/quick2wire/quick2wire-gpio-admin/pull/6

:-)

(although I'm no longer using quick2wire so haven't tried the fix myself)

Andrew

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