GPIOSET(1)

NAME
gpioset - libgpiod command-line utility

SYNOPSIS
gpioset [OPTIONS] <line=value>...

DESCRIPTION
Set values of GPIO lines.

Lines are specified by name, or optionally by offset if the chip option is provided. Values may be '1' or '0', or equivalently 'active'/'inactive' or 'on'/'off'.

The line output state is maintained until the process exits, but after that is not guaranteed.

OPTIONS

--banner
    display a banner on successful startup

-b, --bias <bias>
    specify the line bias Possible values: 'pull-down', 'pull-up', 'disabled'. (default is to leave bias unchanged)

--by-name
    treat lines as names even if they would parse as an offset

-c, --chip <chip>
    restrict scope to a particular chip

-C, --consumer <name> consumer name applied to requested lines (default is 'gpioset')

-d, --drive <drive>
    specify the line drive mode Possible values: 'push-pull', 'open-drain', 'open-source'. (default is 'push-pull')

-h, --help
    display this help and exit

-l, --active-low
    treat the line as active low

-p, --hold-period <period>
    the minimum time period to hold lines at the requested values

-s, --strict
    abort if requested line names are not unique

-t, --toggle <period>[,period]...
    toggle the line(s) after the specified period(s) If the last period is 0 then gpioset exits else the sequence repeats.

--unquoted
    don't quote line names

-v, --version
    output version information and exit

-z, --daemonize
    set values then detach from the controlling terminal

  Chips:

    A GPIO chip may be identified by number, name, or path. e.g. '0', 'gpiochip0', and '/dev/gpiochip0' all refer to the same chip.

  Periods:

    Periods are taken as milliseconds unless units are specified. e.g. 10us. Supported units are 'm', 's', 'ms', and 'us' for minutes, seconds, milliseconds and microseconds respectively.

NOTE

    It should not be assumed that a line will retain its state after gpioset exits. When a process exits, any GPIO lines it has requested are automatically released. Once released, the state of a line may be modified by the kernel or another process. To guarantee the requested value, by default gpioset does not exit.

AUTHOR
Bartosz Golaszewski <brgl@kernel.org>

REPORTING BUGS
Report bugs to:
    Bartosz Golaszewski <brgl@kernel.org>
    linux-gpio <linux-gpio@vger.kernel.org>

COPYRIGHT
Copyright © 2017-2023 Bartosz Golaszewski License: GPL-2.0-or-later
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.