mmc —
MultiMediaCard and SD Card bus driver
device mmc
The
mmc driver implements the MMC and SD Card bus.
The
mmc driver supports all MMC and SD bridges in
the system. All SD or MMC cards in the system attach to an instance of
mmc. The
mmc 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.
at91_mci(4),
mmcsd(4),
sdhci(4)
SD Specifications, Part 1,
Physical Layer, Simplified Specification.
The MultiMediaCard System
Specification.
SDIO cards currently do not work.