Struct AsyncUart 

pub struct AsyncUart { /* private fields */ }

Async wrapper around an ove::Uart.

Same lifetime contract as the other Async* wrappers: methods take &'static self because the C-side notify callback retains a pointer to the internal AtomicWaker.

Implementations

impl AsyncUart

pub const fn new(inner: Uart) -> Self

pub fn arm(&'static self) -> Result<()>

Register the C-side notify callback. Must be called exactly once after the wrapper reaches its final ’static location.

pub async fn read(&'static self, buf: &mut [u8]) -> Result<usize>

Async read — awaits until at least one byte is available, then returns the number of bytes copied.

Returns Ok(0) only if buf.is_empty().

pub fn inner(&self) -> &Uart

Borrow the underlying Uart for synchronous operations (write, bytes_available, flush).

Trait Implementations

impl ErrorType for &'static AsyncUart

type Error = Error

Error type of all the IO operations on this type.

impl Read for &'static AsyncUart

async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>

Read some bytes from this source into the specified buffer, returning how many bytes were read.

async fn read_exact( &mut self, buf: &mut [u8], ) -> Result<(), ReadExactError<Self::Error>>

Read the exact number of bytes required to fill buf.

impl Send for AsyncUart

impl Sync for AsyncUart