mmc(4) MultiMediaCard and SD Card bus driver


device mmc


The driver implements the MMC and SD Card bus. The driver supports all MMC and SD bridges in the system. All SD or MMC cards in the system attach to an instance of . The bus typically has only one slot, and only memory cards. MultiMediaCards exist only in memory. SD Cards exist as memory, I/O, or combination cards.


SDIO cards currently do not work.