Function setup_gpio_pins

cli/src/gpio.rs:38–46

Parses the `--gpio-pins` flag value and constructs the pins backend.

(spec: Option<&str>)

/// Parses the `--gpio-pins` flag value and constructs the pins backend.
pub(crate) fn setup_gpio_pins(spec: Option<&str>) -> Result<Rc<RefCell<dyn gpio::Pins>>> {
    let spec = if cfg!(feature = "rpi") { spec.unwrap_or("rppal") } else { spec.unwrap_or("noop") };
    match spec {
        "mock" => Ok(Rc::new(RefCell::new(gpio::MockPins::default()))),
        "noop" => Ok(Rc::new(RefCell::new(gpio::NoopPins::default()))),
        "rppal" => setup_gpio_pins_rppal(),
        other => Err(bad_usage!(format!("Unknown --gpio-pins backend: {}", other)).into()),
    }
}