99-gpio.rules

# Copyright (c) 2012-2017 Ben Croston <ben@croston.org>.
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# DEALINGS IN THE SOFTWARE.

SUBSYSTEM=="gpio", KERNEL=="gpiochip*", ACTION=="add", \
    PROGRAM="/bin/sh -c 'chown root:gpio /sys/class/gpio/export /sys/class/gpio/unexport; chmod 220 /sys/class/gpio/export /sys/class/gpio/unexport'"
SUBSYSTEM=="gpio", DEVPATH=="/*/gpiochip*/gpio/*", ACTION=="add", \
    PROGRAM="/bin/sh -c 'chown root:gpio /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=="pwm", KERNEL=="pwmchip*", ACTION=="add", \
    PROGRAM="/bin/bash -c 'chown root:gpio /sys%p/{,un}export; chmod 220 /sys%p/{,un}export'"
SUBSYSTEM=="pwm", KERNEL=="pwmchip*", ACTION=="change", \
    PROGRAM="/bin/bash -c 'chown root:gpio /sys%p/%E{EXPORT}/{period,duty_cycle,enable}; chmod 660 /sys%p/%E{EXPORT}/{period,duty_cycle,enable}'"

SUBSYSTEM=="spidev", KERNEL=="spidev*", ACTION=="add", \
    GROUP="gpio", MODE="0660"