% !TEX root = btstack_gettingstarted.tex
\section{RFCOMM API}
\label{appendix:api_rfcomm}
$ $
\begin{lstlisting}
// Set up RFCOMM.
void rfcomm_init(void);

// Register packet handler.
void rfcomm_register_packet_handler(void (*handler)(void *connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size));

// Creates RFCOMM connection (channel) to a given server channel on 
// a remote device with baseband address. A new baseband connection 
// will be initiated if necessary.
// This connection is an RFCOMM channel. The channel will 
// automatically provide enough credits to the remote side.
void rfcomm_create_channel_internal(void *connection, bd_addr_t *addr, uint8_t channel);

// Creates RFCOMM connection (channel) to a given server channel on
// a remote device with baseband address. A new baseband connection
// will be initiated if necessary. 
// This channel will use explicit credit management. During channel 
// establishment, an initial amount of credits is provided.
void rfcomm_create_channel_with_initial_credits_internal(void *connection, bd_addr_t *addr, uint8_t server_channel, uint8_t initial_credits);

// Disconencts RFCOMM channel with given identifier. 
void rfcomm_disconnect_internal(uint16_t rfcomm_cid);

// Registers RFCOMM service for a server channel and a maximum frame 
// size, and assigns a packet handler. On embedded systems, use NULL 
// for connection parameter. This channel will automatically provide 
// enough credits to the remote side.
void rfcomm_register_service_internal(void *connection, uint8_t channel, uint16_t max_frame_size);

// Registers RFCOMM service for a server channel and a maximum frame
// size, and assigns a packet handler. On embedded systems, use NULL 
// for connection parameter.  This channel will use explicit credit
// management. During channel establishment, an initial amount of 
// credits is provided.
void rfcomm_register_service_with_initial_credits_internal(void *connection, uint8_t channel, uint16_t max_frame_size, uint8_t initial_credits);

// Unregister RFCOMM service.
void rfcomm_unregister_service_internal(uint8_t service_channel);

// Accepts/Deny incoming RFCOMM connection.
void rfcomm_accept_connection_internal(uint16_t rfcomm_cid);
void rfcomm_decline_connection_internal(uint16_t rfcomm_cid);


// Grant more incoming credits to the remote side for the given 
// RFCOMM channel identifier.
void rfcomm_grant_credits(uint16_t rfcomm_cid, uint8_t credits);

// Sends RFCOMM data packet to the RFCOMM channel with given
// identifier.
int  rfcomm_send_internal(uint16_t rfcomm_cid, uint8_t *data, uint16_t len); 
\end{lstlisting}
\pagebreak