Is there any chanсe to add group "gpio" for gpio interface? At this moment gpio inteface under root group.   Update: Workaround: sudo groupadd -g 997 gpio sudo usermod -aG gpio myuser sudo nano /etc/udev/rules.d/80-gpio-noroot.rules   SUBSYSTEM=="gpio", GROUP="gpio", MODE="0660"   SUBSYSTEM=="gpio*", PROGRAM="/bin/sh -c '\          /bin/chown -R root:gpio /sys/class/gpio && /bin/chmod -R 770 /sys/class/gpio;\        /bin/chown -R root:gpio /sys/