ble_l2cap_event Struct Reference

#include <ble_l2cap.h>

Public Attributes
uint8_t	type
union {
struct {
int   status
uint16_t   conn_handle
struct ble_l2cap_chan *   chan
}   connect
struct {
uint16_t   conn_handle
struct ble_l2cap_chan *   chan
}   disconnect
struct {
uint16_t   conn_handle
uint16_t   peer_sdu_size
struct ble_l2cap_chan *   chan
}   accept
struct {
uint16_t   conn_handle
struct ble_l2cap_chan *   chan
struct os_mbuf *   sdu_rx
}   receive
struct {
uint16_t   conn_handle
struct ble_l2cap_chan *   chan
int   status
}   tx_unstalled
struct {
int   status
uint16_t   conn_handle
struct ble_l2cap_chan *   chan
}   reconfigured
};

Detailed Description

Represents a L2CAP-related event. When such an event occurs, the host notifies the application by passing an instance of this structure to an application-specified callback.

Member Data Documentation

[union]

union { ... } ble_l2cap_event

A discriminated union containing additional details concerning the L2CAP event. The 'type' field indicates which member of the union is valid.

[struct]

struct { ... } ble_l2cap_event::accept

Represents connection accept. Valid for the following event types: o BLE_L2CAP_EVENT_COC_ACCEPT

chan

struct ble_l2cap_chan* ble_l2cap_event::chan

The L2CAP channel of the relevant L2CAP connection.

Information about the L2CAP connection prior to termination.

conn_handle

uint16_t ble_l2cap_event::conn_handle

Connection handle of the relevant connection

[struct]

struct { ... } ble_l2cap_event::connect

Represents a connection attempt. Valid for the following event types: o BLE_L2CAP_EVENT_COC_CONNECTED

[struct]

struct { ... } ble_l2cap_event::disconnect

Represents a terminated connection. Valid for the following event types: o BLE_L2CAP_EVENT_COC_DISCONNECTED

peer_sdu_size

uint16_t ble_l2cap_event::peer_sdu_size

MTU supported by peer device on the channel

[struct]

struct { ... } ble_l2cap_event::receive

Represents received data. Valid for the following event types: o BLE_L2CAP_EVENT_COC_DATA_RECEIVED

[struct]

struct { ... } ble_l2cap_event::reconfigured

Represents reconfiguration done. Valid for the following event types: o BLE_L2CAP_EVENT_COC_RECONFIG_COMPLETED o BLE_L2CAP_EVENT_COC_PEER_RECONFIGURED

sdu_rx

struct os_mbuf* ble_l2cap_event::sdu_rx

The mbuf with received SDU.

status

int ble_l2cap_event::status

The status of the connection attempt; o 0: the connection was successfully established. o BLE host error code: the connection attempt failed for the specified reason.

The status of the send attempt which was stalled due to lack of credits; This can be non zero only if there is an issue with memory allocation for following SDU fragments. In such a case last SDU has been partially sent to peer device and it is up to application to decide how to handle it.

The status of the reconfiguration attempt; o 0: the reconfiguration was successfully done. o BLE host error code: the reconfiguration attempt failed for the specified reason.

[struct]

struct { ... } ble_l2cap_event::tx_unstalled

Represents tx_unstalled data. Valid for the following event types: o BLE_L2CAP_EVENT_COC_TX_UNSTALLED

type

uint8_t ble_l2cap_event::type

Indicates the type of L2CAP event that occurred. This is one of the BLE_L2CAP_EVENT codes.