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SourceVuESP-IDF Framework and ExamplesESP-IDFesp_hf_client_connect()

esp_hf_client_connect() function

Establish a Service Level Connection to remote bluetooth HFP audio gateway(AG) device. This function must be called after esp_hf_client_init() and before esp_hf_client_deinit().

Syntax

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Summary

Declaration

from esp_hf_client_api.h:371

esp_err_t esp_hf_client_connect(esp_bd_addr_t remote_bda);

Arguments

Argument

Description

remote_bda

remote bluetooth device address

Return value

- ESP_OK: connect request is sent to lower layer - ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled - ESP_FAIL: others

Examples

esp_hf_client_connect() is referenced by 1 libraries and example projects:

hfp_hf sample

References

from 0/1 examples

Code

Location

esp_err_t esp_hf_client_connect(esp_bd_addr_t remote_bda)

esp_hf_client_api.c:66

esp_err_t esp_hf_client_connect(esp_bd_addr_t remote_bda);

esp_hf_client_api.h:371

Call Tree

from 0/1 examples

esp_hf_client_connect() calls 2 functions:

esp_hf_client_connect()

btc_transfer_context()

esp_bluedroid_get_status()

Data Use

from 0/1 examples

esp_hf_client_connect() reads 6 variables and writes 3 variables:

btc_sig_t::BTC_SIG_API_CALL

btc_pid_t::BTC_PID_HF_CLIENT

esp_bluedroid_status_t::ESP_BLUEDROID_STATUS_ENABLED

bt_status_t::BT_STATUS_SUCCESS

btc_hf_client_act_t::BTC_HF_CLIENT_CONNECT_EVT

btc_hf_client_args_t::connect

esp_hf_client_connect()

btc_msg::sig

btc_msg::pid

btc_msg::act

Class Tree

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Override Tree

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Implementations

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Instances

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Lifecycle

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