Struct DmaTransferRxCircular

#[non_exhaustive]
pub struct DmaTransferRxCircular<'a, I>
where
    I: DmaSupportRx,
{ /* private fields */ }

Available on crate feature unstable only.

DMA transaction for RX only circular transfers

Safety

Never use [core::mem::forget] on an in-progress transfer

Implementations

impl<'a, I> DmaTransferRxCircular<'a, I>

where I: DmaSupportRx,

pub fn available(&mut self) -> Result<usize, DmaError>

Amount of bytes which can be popped.

It’s expected to call this before trying to DmaTransferRxCircular::pop data.

pub fn pop(&mut self, data: &mut [u8]) -> Result<usize, DmaError>

Get available data.

It’s expected that the amount of available data is checked before by calling DmaTransferRxCircular::available and that the buffer can hold all available data.

Fails with DmaError::BufferTooSmall if the given buffer is too small to hold all available data

Trait Implementations

impl<I> Drop for DmaTransferRxCircular<'_, I>

where I: DmaSupportRx,

fn drop(&mut self)

Executes the destructor for this type.