// Copyright (c) 2018 The rust-gpio-cdev Project Developers. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. use gpio_cdev::{Chip, LineRequestFlags}; use quicli::prelude::*; use structopt::StructOpt; #[derive(Debug, StructOpt)] struct Cli { /// The gpiochip device (e.g. /dev/gpiochip0) chip: String, /// The offset of the GPIO line for the provided chip line: u32, } fn do_main(args: Cli) -> std::result::Result<(), gpio_cdev::Error> { let mut chip = Chip::new(args.chip)?; let handle = chip .get_line(args.line)? .request(LineRequestFlags::INPUT, 0, "readinput")?; println!("Value: {:?}", handle.get_value()?); Ok(()) } fn main() -> CliResult { let args = Cli::from_args(); do_main(args).or_else(|e| { error!("{:?}", e); Ok(()) }) }