Struct RfcommMultiplexer 

pub struct RfcommMultiplexer { /* private fields */ }

RFCOMM multiplexer: manages all channels over a single L2CAP connection

Implementations

impl RfcommMultiplexer

pub fn new(l2cap_cid: u16) -> Self

Create a new RFCOMM multiplexer

pub fn l2cap_cid(&self) -> u16

Get the underlying L2CAP CID

pub fn is_session_open(&self) -> bool

Check if the multiplexer session is established

pub fn channel_count(&self) -> usize

Get number of active channels

pub fn get_channel(&self, dlci: u8) -> Option<&RfcommChannel>

Get a channel by DLCI

pub fn start_session(&mut self) -> Result<RfcommFrame, KernelError>

Start multiplexer session (send SABM on DLCI 0)

Returns the SABM frame to send over L2CAP

pub fn open_channel(&mut self, dlci: u8) -> Result<RfcommFrame, KernelError>

Open a data channel on the given DLCI

Returns the SABM frame to send over L2CAP

pub fn close_channel(&mut self, dlci: u8) -> Result<RfcommFrame, KernelError>

Close a data channel on the given DLCI

Returns the DISC frame to send over L2CAP

pub fn send( &mut self, dlci: u8, data: &[u8], ) -> Result<RfcommFrame, KernelError>

Send data on an open RFCOMM channel

Returns the UIH frame to send, or error if no credits available

pub fn receive( &mut self, frame: &RfcommFrame, ) -> Result<Option<RfcommFrame>, KernelError>

Process a received RFCOMM frame

Returns an optional response frame to send back

Trait Implementations

impl Default for RfcommMultiplexer

Available on crate feature alloc only.

fn default() -> Self

Returns the “default value” for a type.