Struct RcDevice 

pub struct RcDevice<Bus> { /* private fields */ }

Available on crate features std or alloc only.

Rc<RefCell<T>>-based shared bus I2c implementation. This is the reference-counting equivalent of RefCellDevice.

Sharing is implemented with a RefCell and ownership is managed by Rc. Like RefCellDevice, RcDevice instances are not Send, so they can only be shared within a single thread (interrupt priority level).

When this RcDevice is dropped, the reference count of the I2C bus will be decremented. Once that reference count hits zero, it will be cleaned up.

Implementations

impl<Bus> RcDevice<Bus>

pub fn new(bus: Rc<RefCell<Bus>>) -> Self

Available on crate feature alloc only.

Creates a new RcDevice.

This function does not increment the reference count for the bus: you will need to call Rc::clone(&bus) if you only have a &Rc<RefCell<Bus>>.

Trait Implementations

impl<Bus> ErrorType for RcDevice<Bus>

where Bus: ErrorType,

Available on crate feature alloc only.

type Error = <Bus as ErrorType>::Error

Error type

impl<Bus> I2c for RcDevice<Bus>

where Bus: I2c,

Available on crate feature alloc only.

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

Reads enough bytes from slave with address to fill read.

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

Writes bytes to slave with address address.

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

Writes bytes to slave with address address and then reads enough bytes to fill read in a single transaction.

fn transaction( &mut self, address: u8, operations: &mut [Operation<'_>], ) -> Result<(), Self::Error>

Execute the provided operations on the I2C bus.