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Diffstat (limited to 'examples/multiread.rs')
-rw-r--r-- | examples/multiread.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/examples/multiread.rs b/examples/multiread.rs new file mode 100644 index 0000000..f79e027 --- /dev/null +++ b/examples/multiread.rs @@ -0,0 +1,38 @@ +// Copyright (c) 2018 The rust-gpio-cdev Project Developers. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, 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 lines for the provided chip + lines: Vec<u32>, +} + +fn do_main(args: Cli) -> std::result::Result<(), gpio_cdev::Error> { + let mut chip = Chip::new(args.chip)?; + let ini_vals = vec![0; args.lines.len()]; + let handle = + chip.get_lines(&args.lines)? + .request(LineRequestFlags::INPUT, &ini_vals, "multiread")?; + println!("Values: {:?}", handle.get_values()?); + + Ok(()) +} + +fn main() -> CliResult { + let args = Cli::from_args(); + do_main(args).or_else(|e| { + error!("{:?}", e); + Ok(()) + }) +} |