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SDMMC(4) Device Drivers Manual SDMMC(4)

sdmmcSD bus

# armv7
sdmmc* at ommmc?
# zaurus
sdmmc* at pxammc?
# all architectures
sdmmc* at rtsx?
sdmmc* at sdhc?

The sdmmc subsystem provides machine-independent bus support and drivers for SD/MMC devices.

Standard SD/SDHC memory devices will show up as a fake SCSI disk, using scsibus(4) and sd(4).

intro(4), rtsx(4), scsibus(4), sd(4), sdhc(4)

The sdmmc driver first appeared in OpenBSD 4.0.

The sdmmc driver was written by Uwe Stuehler <>.

July 11, 2014 OpenBSD-5.8