======= GPIOSET ======= :Date: June 2026 NAME ==== gpioset - libgpiod command-line utility SYNOPSIS ======== **gpioset** [*OPTIONS*] **... 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** 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** restrict scope to a particular chip **-C**, **--consumer** consumer name applied to requested lines (default is 'gpioset') **-d**, **--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** the minimum time period to hold lines at the requested values **-s**, **--strict** abort if requested line names are not unique **-t**, **--toggle** [,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 REPORTING BUGS ============== Report bugs to: Bartosz Golaszewski linux-gpio 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.