Function esp_idf_sys::spicommon_bus_free_io_cfg

pub unsafe extern "C" fn spicommon_bus_free_io_cfg(
    bus_cfg: *const spi_bus_config_t
) -> esp_err_t

@brief Free the IO used by a SPI peripheral

@param bus_cfg Bus config struct which defines which pins to be used.

@return - ESP_ERR_INVALID_ARG if parameter is invalid - ESP_OK on success