async-serial

Lightweight async serial port adapter — bridges [serial] with [async-io].

Quickstart

use async_serial::{open, SerialPort, SerialPortSettings}

let mut port = open("/dev/ttyUSB0")?;
port.reconfigure(&|settings| {
    settings.set_baud_rate(serial::Baud9600)?;
    Ok(())
})?;

// Async read — won't block the executor
let mut buf = [0u8; 256];
let n = port.read(&mut buf).await?;

How It Works

serial::SystemPort implements Read + Write but those are blocking calls. async-io provides an Async<T> wrapper that makes any IoSafe + AsFd type non-blocking via the reactor. This crate provides the missing IoSafe and AsFd impls in a small newtype.

API

• open(path) — opens a serial port and returns Async<SystemPort>
• SystemPort::from_serial(port) — wraps an existing serial::SystemPort
• Deref<Target = serial::SystemPort> — transparent access to all serial methods

License

MIT OR Apache-2.0