NAME

     mmc — MultiMediaCard and SD Card bus driver

SYNOPSIS

     device mmc

DESCRIPTION

     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.

SEE ALSO

     at91_mci(4), mmcsd(4), sdhci(4)

     SD Specifications, Part 1, Physical Layer, Simplified Specification.

     The MultiMediaCard System Specification.

BUGS

     SDIO cards currently do not work.