libgpiod 1.0.0

libgpiod wrappers
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

// SPDX-License-Identifier: Apache-2.0 OR BSD-3-Clause
// SPDX-FileCopyrightText: 2023 Kent Gibson <warthog618@gmail.com>
//
// Minimal example of reading multiple lines.

use libgpiod::{
    Result,
    chip::Chip,
    line::{Config as LineConfig, Direction, Settings},
    request::Config as ReqConfig,
};

fn main() -> Result<()> {
    // Example configuration - customize to suit your situation
    let chip_path = "/dev/gpiochip0";
    let line_offsets = [5, 3, 7];

    let mut lsettings = Settings::new()?;
    let mut lconfig = LineConfig::new()?;

    lsettings.set_direction(Direction::Input)?;
    lconfig.add_line_settings(&line_offsets, lsettings)?;

    let chip = Chip::open(&chip_path)?;

    let mut rconfig = ReqConfig::new()?;
    rconfig.set_consumer("get-multiple-line-values")?;

    let request = chip.request_lines(Some(&rconfig), &lconfig)?;
    let values = request.values()?;

    println!("{values:?}");
    Ok(())
}