GPIOSET(1)                       User Commands                      GPIOSET(1)

NAME
       gpioset - manual page for gpioset v2.1

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 non-zero then 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 's', 'ms', and 'us'.

NOTE
              The state of a GPIO line controlled over the character device
              reverts to default when the last process referencing the file
              descriptor representing the device file exits.  This means that
              it's wrong to run gpioset, have it exit and expect the line to
              continue being driven high or low. It may happen if given pin is
              floating but it must be interpreted as undefined behavior.

AUTHOR
       Bartosz Golaszewski <brgl@bgdev.pl>

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

COPYRIGHT
       Copyright (C) 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.

libgpiod v2.1                     April 2024                        GPIOSET(1)