evdev 0.12.2

evdev interface for Linux
Documentation 
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use evdev::{EventType, InputEvent, LedType};

mod _pick_device;

fn main() {
    let mut d = _pick_device::pick_device();
    println!("{}", d);
    println!("Blinking the Keyboard LEDS...");
    for i in 0..5 {
        let on = i % 2 != 0;
        d.send_events(&[
            InputEvent::new(
                EventType::LED,
                LedType::LED_CAPSL.0,
                if on { i32::MAX } else { 0 },
            ),
            InputEvent::new(
                EventType::LED,
                LedType::LED_NUML.0,
                if on { i32::MAX } else { 0 },
            ),
            InputEvent::new(
                EventType::LED,
                LedType::LED_SCROLLL.0,
                if on { i32::MAX } else { 0 },
            ),
        ])
        .unwrap();
        std::thread::sleep(std::time::Duration::from_secs(1));
    }
}