Async Fan API

This API provides generic methods for interfacing with fans.

For HAL authors

Here is an example of an embedded-fans implementation of the Fan and RpmSense traits.

use embedded_fans_async::{self, Fan, RpmSense};

// A struct representing a fan device.
pub struct MyFan {
    // ...
}

#[derive(Clone, Copy, Debug)]
pub enum Error {
    // ...
}

impl embedded_fans_async::Error for Error {
    fn kind(&self) -> embedded_fans::ErrorKind {
        match *self {
            // ...
        }
    }
}

impl embedded_fans_async::ErrorType for MyFan {
    type Error = Error;
}

impl Fan for MyFan {
    fn max_rpm(&self) -> u16 {
        3150
    }

    fn min_rpm(&self) -> u16 {
        0
    }

    fn min_start_rpm(&self) -> u16 {
        1120
    }

    async fn set_speed_rpm(&mut self, rpm: u16) -> Result<u16, Self::Error> {
        // ...
        Ok(rpm)
    }
}

impl RpmSense for MyFan {
    async fn rpm(&mut self) -> Result<u16, Self::Error> {
        // ...
        Ok(42)
    }
}

embedded-fans-async

This crate contains async traits which define the embedded-fans interface.