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esp_hf_ag_cmee_send() function
Unsolicited send extend AT error code to HFP Client. As a precondition to use this API, Service Level Connection shall exist with HFP client.
Syntax
esp_err_t esp_hf_ag_cmee_send(esp_bd_addr_t remote_bda,
esp_hf_at_response_code_t response_code,
esp_hf_cme_err_t error_code);
Return value
- ESP_OK: extend error code is sent to lower layer - ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled - ESP_FAIL: others