add UART errors for embedded-io

embedded-io/CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Migrated `std` feature-gated `std::error::Error` implementations to `core::error::Error`
 - Increased MSRV to 1.81 due to `core::error::Error`
 - Implemented `ReadReady` for `&[u8]` and `WriteReady` for `&mut [u8]`
+- Added UART error variants `Overrun`, `FrameFormat`, `Parity` and `Noise`
 
 ## 0.6.1 - 2023-10-22
 

embedded-io/src/lib.rs

@@ -118,6 +118,16 @@ pub enum ErrorKind {
     OutOfMemory,
     /// An attempted write could not write any data.
     WriteZero,
+
+    /// The peripheral receive buffer was overrun.
+    Overrun,
+    /// Received data does not conform to the peripheral configuration.
+    /// Can be caused by a misconfigured device on either end of the serial line.
+    FrameFormat,
+    /// Parity check failed.
+    Parity,
+    /// Serial line is too noisy to read valid data.
+    Noise,
 }
 
 #[cfg(feature = "std")]