Struct shared_bus::SpiProxy

pub struct SpiProxy<'a, M> { /* private fields */ }

Proxy type for SPI bus sharing.

The SpiProxy implements all (blocking) SPI traits so it can be passed to drivers instead of the bus instance. An SpiProxy is created by calling BusManager::acquire_spi().

Note: The SpiProxy can only be used for sharing withing a single task/thread. This is due to drivers usually managing the chip-select pin manually which would be inherently racy in a concurrent environment (because the mutex is locked only after asserting CS). To ensure safe usage, a SpiProxy can only be created when using BusManagerSimple and is !Send.

Trait Implementations

impl<'a, M: BusMutex> Clone for SpiProxy<'a, M>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, M: Debug> Debug for SpiProxy<'a, M>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, M: BusMutex> Transfer<u8> for SpiProxy<'a, M> where
    M::Bus: Transfer<u8>, 

type Error = <M::Bus as Transfer<u8>>::Error

Error type

fn transfer<'w>(&mut self, words: &'w mut [u8]) -> Result<&'w [u8], Self::Error>

Sends words to the slave. Returns the words received from the slave

impl<'a, M: BusMutex> Write<u8> for SpiProxy<'a, M> where
    M::Bus: Write<u8>, 

type Error = <M::Bus as Write<u8>>::Error

Error type

fn write(&mut self, words: &[u8]) -> Result<(), Self::Error>

Sends words to the slave, ignoring all the incoming words