Function esp_idf_sys::ff_diskio_register_sdmmc

pub unsafe extern "C" fn ff_diskio_register_sdmmc(
    pdrv: c_uchar,
    card: *mut sdmmc_card_t,
)

Register SD/MMC diskio driver

@param pdrv drive number @param card pointer to sdmmc_card_t structure describing a card; card should be initialized before calling f_mount.