Power GPIO permission denied

[dvino]

Power GPIO permission denied.
Config:

[power printer]
type: gpio
pin: gpiochip0/gpio6
initial_state: off

Klipper not use any GPIO. If I try control GPIO by bash it work perfect. Moonraker works under the same user.

I attach the moonraker.log file immediately after the reboot

OS: Armbian 21.08.3 Bullseye
Board: Orange PI Zero

/etc/systemd/system/moonraker.service

#Systemd service file for moonraker
[Unit]
Description=API Server for Klipper
After=network.target

[Install]
WantedBy=multi-user.target

[Service]
Type=simple
User=danil
Group=gpio
RemainAfterExit=yes
WorkingDirectory=/home/danil/moonraker
ExecStart=/home/danil/moonraker-env/bin/python /home/danil/moonraker/moonraker/moonraker.py -c /home/danil/klipper_config/moonraker.conf -l /tmp/moonraker.log
Restart=always
RestartSec=10

/etc/udev/rules.d/99-gpio.rules

SUBSYSTEM=="gpio*", PROGRAM="/bin/sh -c '\
    chown -R root:gpio /sys/class/gpio && chmod -R 0770 /sys/class/gpio &&\
    chown -R root:gpio /sys/devices/platform/soc && chmod -R 0770 /sys/devices/platform/soc'" 

ls -l /sys/class/gpio/

-rwxrwx--- 1 root gpio 4096 окт 17 23:08 export
lrwxrwxrwx 1 root gpio    0 окт 17 23:01 gpiochip0 -> ../../devices/platform/soc/1c20800.pinctrl/gpio/gpiochip0
lrwxrwxrwx 1 root gpio    0 окт 17 23:01 gpiochip352 -> ../../devices/platform/soc/1f02c00.pinctrl/gpio/gpiochip352
-rwxrwx--- 1 root gpio 4096 окт 17 23:09 unexport

id
uid=1000(danil) gid=1000(danil) groups=1000(danil),5(tty),6(disk),20(dialout),27(sudo),29(audio),44(video),46(plugdev),60(games),100(users),102(systemd-journal),106(input),110(netdev),112(ssh),118(mnrkrsudo),1001(gpio)

[dvino]

If I do sudo chmod 4775 /usr/bin/python3.9 it works perfect

[dvino]

Problem was to access /dev/gpiochip*

Solution:
Create a file /etc/udev/rules.d/60-gpiod.rules containing the following:

# udev rules for gpio port access through libgpiod
SUBSYSTEM=="gpio", KERNEL=="gpiochip[0-4]", GROUP="gpio", MODE="0660"