mirror of
https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git
synced 2026-10-25 12:39:18 +03:00
485b81cd4b
* Sort imports * Use f-strings where possible * Remove usage of `tuple` for config key values Signed-off-by: Vincent Fazio <vfazio@gmail.com> Link: https://patch.msgid.link/20260401001459.19159-7-vfazio@gmail.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
32 lines
998 B
Python
Executable File
32 lines
998 B
Python
Executable File
#!/usr/bin/env python3
|
|
# SPDX-License-Identifier: GPL-2.0-or-later
|
|
# SPDX-FileCopyrightText: 2023 Kent Gibson <warthog618@gmail.com>
|
|
|
|
"""Minimal example of watching for rising edges on a single line."""
|
|
|
|
import gpiod
|
|
from gpiod.line import Edge
|
|
|
|
|
|
def watch_line_rising(chip_path: str, line_offset: int) -> None:
|
|
with gpiod.request_lines(
|
|
chip_path,
|
|
consumer="watch-line-rising",
|
|
config={line_offset: gpiod.LineSettings(edge_detection=Edge.RISING)},
|
|
) as request:
|
|
while True:
|
|
# Blocks until at least one event is available
|
|
for event in request.read_edge_events():
|
|
print(
|
|
f"line: {event.line_offset}"
|
|
" type: Rising"
|
|
f" event #{event.line_seqno}"
|
|
)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
try:
|
|
watch_line_rising("/dev/gpiochip0", 5)
|
|
except OSError as ex:
|
|
print(ex, "\nCustomise the example configuration to suit your situation")
|