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MMC(4) Device Drivers Manual MMC(4)

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.
October 8, 2008 Linux 4.19.0-13-amd64