1 files changed, 58 insertions, 0 deletions
diff --git a/examples/multioutput.rs b/examples/multioutput.rs
new file mode 100644
index 0000000..4f0acae
--- /dev/null
+++ b/examples/multioutput.rs
@@ -0,0 +1,58 @@
+// 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 and value of each GPIO line for the provided chip
+    /// in the form "off=<0|1>"
+    line_values: Vec<String>,
+}
+
+// Use like:
+//   muiltioutput /dev/gpiochip0 0=1 1=1 2=0 3=1 4=0
+//
+// to set lines 0, 1, & 3 high
+//              2 & 4 low
+//
+fn do_main(args: Cli) -> std::result::Result<(), gpio_cdev::Error> {
+    let mut chip = Chip::new(args.chip)?;
+    let mut offsets = Vec::new();
+    let mut values = Vec::new();
+
+    for arg in args.line_values {
+        let lv: Vec<&str> = arg.split("=").collect();
+        offsets.push(lv[0].parse::<u32>().unwrap());
+        values.push(lv[1].parse::<u8>().unwrap());
+    }
+
+    // NOTE: we set the default values to the desired states so
+    // setting them separately is not required
+    let _handle =
+        chip.get_lines(&offsets)?
+            .request(LineRequestFlags::OUTPUT, &values, "multioutput")?;
+
+    println!("Output lines being driven... Enter to exit");
+    let mut buf = String::new();
+    ::std::io::stdin().read_line(&mut buf)?;
+
+    Ok(())
+}
+
+fn main() -> CliResult {
+    let args = Cli::from_args();
+    do_main(args).or_else(|e| {
+        error!("{:?}", e);
+        Ok(())
+    })
+}