serial: Replace the serial-rs crate with serialport-rs

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+### Changed
+- [breaking-change] Replace serial-rs with the serialport-rs crate. `Serial::open` now needs a baud-rate argument as well.
+
 ## [v0.4.0-alpha.3] - 2022-08-04
 
 ### Added

Cargo.toml

@@ -28,8 +28,7 @@ gpio-cdev = { version = "0.5.1", optional = true }
 sysfs_gpio = { version = "0.6.1", optional = true }
 i2cdev = { version = "0.5.1", optional = true }
 nb = "1"
-serial-core = "0.4.0"
-serial-unix = "0.4.0"
+serialport = { version = "4.2.0", default-features = false }
 spidev = { version = "0.5.1", optional = true }
 nix = "0.23.1"
 

src/lib.rs

@@ -15,8 +15,7 @@
 #[cfg(feature = "i2c")]
 pub use i2cdev;
 pub use nb;
-pub use serial_core;
-pub use serial_unix;
+pub use serialport;
 #[cfg(feature = "spi")]
 pub use spidev;
 

src/serial.rs

@@ -3,19 +3,22 @@
 //! [`embedded-hal`]: https://docs.rs/embedded-hal
 
 use nb;
-use serial_core;
-use serial_unix::TTYPort;
+use serialport::{SerialPortBuilder, TTYPort};
 use std::io::{ErrorKind as IoErrorKind, Read, Write};
-use std::path::Path;
 
-/// Newtype around [`serial_unix::TTYPort`] that implements
+/// Newtype around [`serialport::TTYPort`] that implements
 /// the `embedded-hal` traits.
 pub struct Serial(pub TTYPort);
 
 impl Serial {
-    /// Wrapper for `serial_unix::TTYPort::open`
-    pub fn open(path: impl AsRef<Path>) -> Result<Serial, serial_core::Error> {
-        Ok(Serial(TTYPort::open(path.as_ref())?))
+    /// Open a `serialport::TTYPort` by providing the port path and baud rate
+    pub fn open(path: String, baud_rate: u32) -> Result<Serial, serialport::Error> {
+        Ok(Serial(serialport::new(path, baud_rate).open_native()?))
+    }
+
+    /// Open a `serialport::TTYPort` by providing `serialport::SerialPortBuilder`
+    pub fn open_from_builder(builder: SerialPortBuilder) -> Result<Serial, serialport::Error> {
+        Ok(Serial(builder.open_native()?))
     }
 }
 
@@ -81,8 +84,6 @@ impl embedded_hal::serial::Error for SerialError {
 
 #[cfg(test)]
 mod test {
-    use std::path::Path;
-
     use embedded_hal_nb::serial::{Read, Write};
     use std::io::{Read as IoRead, Write as IoWrite};
 
@@ -91,10 +92,18 @@ mod test {
     fn create_pty_and_serial() -> (std::fs::File, Serial) {
         let (master, _slave, name) =
             openpty::openpty(None, None, None).expect("Creating pty failed");
-        let serial = Serial::open(Path::new(&name)).expect("Creating TTYPort failed");
+        let serial = Serial::open(name, 9600).expect("Creating TTYPort failed");
         (master, serial)
     }
 
+    #[test]
+    fn create_serial_from_builder() {
+        let (_master, _slave, name) =
+            openpty::openpty(None, None, None).expect("Creating pty failed");
+        let builder = serialport::new(name, 9600);
+        let _serial = Serial::open_from_builder(builder).expect("Creating TTYPort failed");
+    }
+
     #[test]
     fn test_empty_read() {
         let (mut _master, mut serial) = create_pty_and_serial();