gpioget - libgpiod command-line utility

NAME  SYNOPSIS  DESCRIPTION  OPTIONS  Chips:  Periods:  AUTHOR  REPORTING BUGS  COPYRIGHT 

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NAME

gpioget − libgpiod command-line utility

SYNOPSIS

gpioget [OPTIONS] <line>...

DESCRIPTION

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.

AUTHOR

Bartosz Golaszewski <[email protected]>

REPORTING BUGS

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

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.

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