Section 1 · User commands

gpionotify.1

Package: libgpiod-utils

LT-GPIONOTIFY

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHOR
REPORTING BUGS
COPYRIGHT

NAME

lt-gpionotify − manual page for lt-gpionotify v2.1.3

SYNOPSIS

lt-gpionotify [OPTIONS] <line>…

DESCRIPTION

Wait for changes to info on GPIO lines and print them to standard output.

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

OPTIONS

−−banner

display a banner on successful startup

−−by−name

treat lines as names even if they would parse as an offset

−c, −−chip <chip>

restrict scope to a particular chip

−e, −−event <event>

specify the events to monitor Possible values: ’requested’, ’released’, ’reconfigured’. (default is all events)

−h, −−help

display this help and exit

−F, −−format <fmt>

specify a custom output format

−−idle−timeout <period>

exit gracefully if no events occur for the period specified

−−localtime

convert event timestamps to local time

−n, −−num−events <num>

exit after processing num events

−q, −−quiet

don’t generate any output

−s, −−strict

abort if requested line names are not unique

−−unquoted

don’t quote line or consumer names


	−−utc		convert event timestamps to UTC

−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 ’s’, ’ms’, and ’us’.

Format specifiers:


	%o		GPIO line offset
	%l		GPIO line name
	%c		GPIO chip name
	%e		numeric info event type (’1’ − requested, ’2’ − released or ’3’ − reconfigured)
	%E		info event type (’requested’, ’released’ or ’reconfigured’)
	%a		line attributes
	%C		consumer
	%S		event timestamp as seconds
	%U		event timestamp as UTC
	%L		event timestamp as local time

AUTHOR

Bartosz Golaszewski <brgl@bgdev.pl>

REPORTING BUGS

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