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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2023 Kent Gibson <warthog618@gmail.com>
/* Minimal example of reading multiple lines. */
#include <cstdlib>
#include <gpiod.hpp>
#include <iostream>
namespace {
/* Example configuration - customize to suit your situation */
const ::std::filesystem::path chip_path("/dev/gpiochip0");
const ::gpiod::line::offsets line_offsets = { 5, 3, 7 };
} /* namespace */
int main()
{
auto request = ::gpiod::chip(chip_path)
.prepare_request()
.set_consumer("get-multiple-line-values")
.add_line_settings(
line_offsets,
::gpiod::line_settings().set_direction(
::gpiod::line::direction::INPUT))
.do_request();
auto values = request.get_values();
for (size_t i = 0; i < line_offsets.size(); i++)
::std::cout << line_offsets[i] << "="
<< (values[i] == ::gpiod::line::value::ACTIVE ?
"Active" :
"Inactive")
<< ' ';
::std::cout << ::std::endl;
return EXIT_SUCCESS;
}
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