Function esp_idf_hal::sys::sdspi_host_get_real_freq

source · 
pub unsafe extern "C" fn sdspi_host_get_real_freq(
    handle: i32,
    real_freq_khz: *mut i32
) -> i32
Expand description

@brief Calculate working frequency for specific device

@param handle SDSPI device handle @param[out] real_freq_khz output parameter to hold the calculated frequency (in kHz)

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