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

-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 <[email protected]>

REPORTING BUGS

Report bugs to:
Bartosz Golaszewski <[email protected]>
linux-gpio <[email protected]>