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SourceVuESP-IDF Framework and ExamplesESP-IDFL2CA_Echo()

L2CA_Echo() function

* Function L2CA_Echo * Description Higher layers call this function to send an echo request * with application-specific data. * Returns TRUE if echo request sent, else FALSE.

Syntax

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Summary

Declaration

Definition

from l2c_api.h:610

extern BOOLEAN L2CA_Echo (BD_ADDR p_bd_addr, BT_HDR *p_data, tL2CA_ECHO_DATA_CB *p_callback);

Implemented in l2c_api.c:684

Arguments

Argument

p_bd_addr

p_data

p_callback

References

Code

Location

BOOLEAN L2CA_Echo (BD_ADDR p_bd_addr, BT_HDR *p_data, tL2CA_ECHO_DATA_CB *p_callback)

l2c_api.c:684

extern BOOLEAN L2CA_Echo (BD_ADDR p_bd_addr, BT_HDR *p_data, tL2CA_ECHO_DATA_CB *p_callback);

l2c_api.h:610

Call Tree

L2CA_Echo() calls 6 functions:

L2CA_Echo()

esp_log_timestamp()

esp_log_write()

BTM_IsDeviceUp()

l2cu_send_peer_echo_req()

l2cu_find_lcb_by_bd_addr()

l2cu_adj_id()

Data Use

L2CA_Echo() reads 9 variables and writes 1 variable:

esp_log_level_t::ESP_LOG_ERROR

esp_log_level_t::ESP_LOG_INFO

BT_HDR::len

BT_HDR::offset

BT_BD_ANY

tL2C_LINK_STATE::LST_CONNECTED

t_l2c_linkcb::link_state

tL2C_CB::l2cap_trace_level

l2cb

L2CA_Echo()

tL2C_CB::p_echo_data_cb

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