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@bgdev.pl>

REPORTING BUGS

       Report bugs to:
           Bartosz Golaszewski <brgl@bgdev.pl>
           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.

libgpiod v2.2.1                                    March 2025                                         GPIOSET(1)