Struct L2capChannel

pub struct L2capChannel<'d> { /* private fields */ }

Handle representing an L2CAP channel.

Implementations

impl<'d> L2capChannel<'d>

pub fn disconnect(&mut self)

Disconnect this channel.

pub async fn send<T: Controller, const TX_MTU: usize>( &mut self, stack: &Stack<'_, T>, buf: &[u8], ) -> Result<(), BleHostError<T::Error>>

Send the provided buffer over this l2cap channel.

The buffer will be segmented to the maximum payload size agreed in the opening handshake.

If the channel has been closed or the channel id is not valid, an error is returned. If there are no available credits to send, waits until more credits are available.

pub fn try_send<T: Controller + Controller, const TX_MTU: usize>( &mut self, stack: &Stack<'_, T>, buf: &[u8], ) -> Result<(), BleHostError<T::Error>>

Send the provided buffer over this l2cap channel.

The buffer will be segmented to the maximum payload size agreed in the opening handshake.

If the channel has been closed or the channel id is not valid, an error is returned. If there are no available credits to send, returns Error::Busy.

pub async fn receive<T: Controller>( &mut self, stack: &Stack<'_, T>, buf: &mut [u8], ) -> Result<usize, BleHostError<T::Error>>

Receive data on this channel and copy it into the buffer.

The length provided buffer slice must be equal or greater to the agreed MTU.

pub async fn accept<T: Controller>( stack: &'d Stack<'d, T>, connection: &Connection<'_>, psm: &[u16], config: &L2capChannelConfig, ) -> Result<Self, BleHostError<T::Error>>

Await an incoming connection request matching the list of PSM.

pub async fn create<T: Controller>( stack: &'d Stack<'d, T>, connection: &Connection<'_>, psm: u16, config: &L2capChannelConfig, ) -> Result<Self, BleHostError<T::Error>>

Create a new connection request with the provided PSM.

pub fn split(self) -> (L2capChannelWriter<'d>, L2capChannelReader<'d>)

Split the channel into a writer and reader for concurrently writing to/reading from the channel.

pub fn merge( writer: L2capChannelWriter<'d>, reader: L2capChannelReader<'d>, ) -> Self

Merge writer and reader into a single channel again.

This function will panic if the channels are not referring to the same channel id.

Trait Implementations

impl Drop for L2capChannel<'_>

fn drop(&mut self)

Executes the destructor for this type.

impl Format for L2capChannel<'_>

fn format(&self, f: Formatter<'_>)

Writes the defmt representation of self to fmt.