gpioget1

Libgpiod command-line utility

Usage

gpioget [OPTIONS] <line> ...

Overview

Read values of GPIO lines.

Lines are specified by name, or optionally by offset if the chip option is provided.

Options

-a, --as-is: leave the line direction unchanged, not forced to input

-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 'gpioget')

-h, --help: display this help and exit

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

-p, --hold-period <period>: wait between requesting the lines and reading the values

--numeric: display line values as '0' (inactive) or '1' (active)

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

--unquoted: don't quote line names

-v, --version: output version information and exit

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.

Releases

4 releases since Debian 11 (Bullseye); the text changed 3 times.

--active-low since Debian 13 (Trixie); --as-is since Debian 13 (Trixie); --bias since Debian 13 (Trixie); --by-name since Debian 13 (Trixie); --chip since Debian 13 (Trixie); --help since Debian 13 (Trixie); --hold-period since Debian 13 (Trixie); --numeric since Debian 13 (Trixie); --strict since Debian 13 (Trixie); --unquoted since Debian 13 (Trixie); --version since Debian 13 (Trixie); -a since Debian 13 (Trixie); -b since Debian 13 (Trixie); -c since Debian 13 (Trixie); -h since Debian 13 (Trixie); -l since Debian 13 (Trixie); -p since Debian 13 (Trixie); -s since Debian 13 (Trixie); -v since Debian 13 (Trixie).