Function esp_idf_sys::esp_eth_decrease_reference

pub unsafe extern "C" fn esp_eth_decrease_reference(
    hdl: esp_eth_handle_t,
) -> esp_err_t

@brief Decrease Ethernet driver reference

@param[in] hdl: handle of Ethernet driver @return - ESP_OK: increase reference successfully - ESP_ERR_INVALID_ARG: increase reference failed because of some invalid argument