Raspberry Pi GPIO Permissions

[dbrgn]

Raspberry Pi GPIO Permissions

[dbrgn]

Can be fixed by changing the following in /etc/udev/rules.d/92-gpio.rules (just add GROUP="gpio"):

-SUBSYSTEM=="gpio", KERNEL=="gpiochip*", ACTION=="add", PROGRAM="/bin/sh -c 'chown volumio:volumio /sys/class/gpio/export /sys/class/gpio/unexport ; chmod 220 /sys/class/gpio/export /sys/class/gpio/unexport'"
-SUBSYSTEM=="gpio", KERNEL=="gpio*", ACTION=="add", PROGRAM="/bin/sh -c 'chown volumio:volumio /sys%p/active_low /sys%p/direction /sys%p/edge /sys%p/value ; chmod 660 /sys%p/active_low /sys%p/direction /sys%p/edge /sys%p/value'"
+SUBSYSTEM=="gpio", KERNEL=="gpiochip*", GROUP="gpio", ACTION=="add", PROGRAM="/bin/sh -c 'chown volumio:volumio /sys/class/gpio/export /sys/class/gpio/unexport ; chmod 220 /sys/class/gpio/export /sys/class/gpio/unexport'"
+SUBSYSTEM=="gpio", KERNEL=="gpio*", GROUP="gpio", ACTION=="add", PROGRAM="/bin/sh -c 'chown volumio:volumio /sys%p/active_low /sys%p/direction /sys%p/edge /sys%p/value ; chmod 660 /sys%p/active_low /sys%p/direction /sys%p/edge /sys%p/value'"

[macmpi]

Not sure current build uses latest of raspberrypi-sys-mods as that package is cached in own @volumio repo.
You may check if latest rule fixes your issue.

[ashthespy]

I believe http://archive.volumio.org/debian/ is just a mirror of archive.raspberrypi.org -- so packages are the same. :-)

$ curl -s http://archive.raspberrypi.org/debian/dists/jessie/main/binary-armhf/Packages | grep 'Package: raspberrypi-sys-mods' -B 2
Package: raspberrypi-sys-mods
Version: 20170519

$ curl -s http://archive.volumio.org/debian/dists/jessie/main/binary-armhf/Packages | grep 'Package: raspberrypi-sys-mods' -B 2
Package: raspberrypi-sys-mods
Version: 20170519