Struct DmaTransferTxCircular

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

Available on crate feature unstable only.

DMA transaction for TX only circular transfers

Safety

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

Implementations

impl<'a, I> DmaTransferTxCircular<'a, I>

where I: DmaSupportTx,

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

Amount of bytes which can be pushed.

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

Push bytes into the DMA buffer.

pub fn push_with( &mut self, f: impl FnOnce(&mut [u8]) -> usize, ) -> Result<usize, DmaError>

Push bytes into the DMA buffer via the given closure. The closure must return the actual number of bytes written. The closure might get called with a slice which is smaller than the total available buffer.

pub fn stop(self) -> Result<(), DmaError>

Stop the DMA transfer

Trait Implementations

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

where I: DmaSupportTx,

fn drop(&mut self)

Executes the destructor for this type.