Function esp_idf_svc::sys::esp_ble_gap_get_callback

pub unsafe extern "C" fn esp_ble_gap_get_callback() -> Option<unsafe extern "C" fn(_: u32, _: *mut esp_ble_gap_cb_param_t)>

@brief This function is called to get the current gap callback

@return - esp_gap_ble_cb_t : callback function