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SourceVuESP-IDF Framework and ExamplesESP-IDFesp_hf_client_retrieve_subscriber_info()

esp_hf_client_retrieve_subscriber_info() function

Get subscriber information number from AG(send AT+CNUM command) As a precondition to use this API, Service Level Connection shall exist with AG

Syntax

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Summary

Declaration

from esp_hf_client_api.h:584

esp_err_t esp_hf_client_retrieve_subscriber_info(void);

Return value

- ESP_OK: the retrieving of subscriber information is sent to lower layer - ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled - ESP_FAIL: others

Examples

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

hfp_hf sample

References

from 0/1 examples

Code

Location

esp_err_t esp_hf_client_retrieve_subscriber_info(void)

esp_hf_client_api.c:372

esp_err_t esp_hf_client_retrieve_subscriber_info(void);

esp_hf_client_api.h:584

Call Tree

from 0/1 examples

esp_hf_client_retrieve_subscriber_info() calls 2 functions:

esp_hf_client_retrieve_subscriber_info()

btc_transfer_context()

esp_bluedroid_get_status()

Data Use

from 0/1 examples

esp_hf_client_retrieve_subscriber_info() reads 5 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_RETRIEVE_SUBSCRIBER_INFO_EVT

esp_hf_client_retrieve_subscriber_info()

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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