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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2023 Kent Gibson <warthog618@gmail.com>
/* Minimal example of reading the info for a line. */
#include <cstdlib>
#include <filesystem>
#include <gpiod.hpp>
#include <iomanip>
#include <iostream>
namespace {
/* Example configuration - customize to suit your situation */
const ::std::filesystem::path chip_path("/dev/gpiochip0");
const ::gpiod::line::offset line_offset = 3;
} /* namespace */
int main()
{
auto chip = ::gpiod::chip(chip_path);
auto info = chip.get_line_info(line_offset);
::std::cout << "line " << ::std::setw(3) << info.offset() << ": "
<< ::std::setw(12)
<< (info.name().empty() ? "unnamed" : info.name()) << " "
<< ::std::setw(12)
<< (info.consumer().empty() ? "unused" : info.consumer())
<< " " << ::std::setw(8)
<< (info.direction() == ::gpiod::line::direction::INPUT ?
"input" :
"output")
<< " " << ::std::setw(10)
<< (info.active_low() ? "active-low" : "active-high")
<< ::std::endl;
return EXIT_SUCCESS;
}
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