gpiomon1

Usage

Overview

Wait for events 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

-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 'gpiomon')

-e, --edges <edges>

specify the edges to monitor Possible values: 'falling', 'rising', 'both'. (default is 'both')

-E, --event-clock <clock>

specify the source clock for event timestamps Possible values: 'monotonic', 'realtime', 'hte'. (default is 'monotonic') By default 'realtime' is formatted as UTC, others as raw u64.

-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

-l, --active-low

treat the line as active low, flipping the sense of rising and falling edges

--localtime

format event timestamps as local time

-n, --num-events <num>

exit after processing num events

-p, --debounce-period <period>

debounce the line(s) with the specified period

-q, --quiet

don't generate any output

-I, --initial-state

print initial states of the lines

-N, --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 or consumer names

--utc

format event timestamps as UTC (default for 'realtime')

-v, --version

output version information and exit