Function esp_idf_sys::esp_now_register_send_cb
source ยท pub unsafe extern "C" fn esp_now_register_send_cb(
cb: esp_now_send_cb_t,
) -> esp_err_t
Expand description
@brief Register callback function of sending ESPNOW data
@param cb callback function of sending ESPNOW data
@return - ESP_OK : succeed - ESP_ERR_ESPNOW_NOT_INIT : ESPNOW is not initialized - ESP_ERR_ESPNOW_INTERNAL : internal error