gpioget - Man Page

manual page for gpioget v2.1.1

Synopsis

gpioget [Options] <line>...

Read values of GPIO lines.

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

-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

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 are taken as milliseconds unless units are specified. e.g. 10us. Supported units are 's', 'ms', and 'us'.

Bartosz Golaszewski <brgl@bgdev.pl>

Report bugs to:
Bartosz Golaszewski <brgl@bgdev.pl>
linux-gpio <linux-gpio@vger.kernel.org>

March 2024 libgpiod v2.1.1