GPIOGET
- Date:
April 2025
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.
REPORTING BUGS
Report bugs to: Bartosz Golaszewski <brgl@bgdev.pl> linux-gpio <linux-gpio@vger.kernel.org>