Function esp_idf_sys::spi_device_get_actual_freq

source ยท 
pub unsafe extern "C" fn spi_device_get_actual_freq(
    handle: spi_device_handle_t,
    freq_khz: *mut c_int,
) -> esp_err_t
Expand description

@brief Calculate working frequency for specific device

@param handle SPI device handle @param[out] freq_khz output parameter to hold calculated frequency in kHz

@return - ESP_ERR_INVALID_ARG : handle or freq_khz parameter is NULL - ESP_OK : Success