Provided by:
freebsd-manpages_7.2-1_all 
NAME
sdhci - PCI SD Host Controller bridge driver
SYNOPSIS
device mmc
device mmcsd
device sdhci
DESCRIPTION
The sdhci driver supports PCI devices with class 8 and subclass 5
according to SD Host Controller Specification. Driver supports up to six
high speed 4bit MMC/SD slots per controller. Driver attaches mmc bus to
the respective slot on card insertion and detaches it on card removing.
SEE ALSO
mmc(4), mmcsd(4)
SD Specifications, Part 2, SD Host Controller, Simplified Specification.
AUTHORS
Alexander Motin 〈mav@FreeBSD.org〉.