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https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git
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96c52d3e59
Replace tool examples with use case examples drawn from the tools. Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
30 lines
918 B
Python
Executable File
30 lines
918 B
Python
Executable File
#!/usr/bin/env python3
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# SPDX-License-Identifier: GPL-2.0-or-later
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# SPDX-FileCopyrightText: 2023 Kent Gibson <warthog618@gmail.com>
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"""Minimal example of reading the info for a line."""
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import gpiod
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def get_line_info(chip_path, line_offset):
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with gpiod.Chip(chip_path) as chip:
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info = chip.get_line_info(line_offset)
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is_input = info.direction == gpiod.line.Direction.INPUT
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print(
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"line {:>3}: {:>12} {:>12} {:>8} {:>10}".format(
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info.offset,
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info.name or "unnamed",
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info.consumer or "unused",
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"input" if is_input else "output",
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"active-low" if info.active_low else "active-high",
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)
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)
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if __name__ == "__main__":
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try:
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get_line_info("/dev/gpiochip0", 3)
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except OSError as ex:
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print(ex, "\nCustomise the example configuration to suit your situation")
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