freebsd-dev/share/man/man4/mmc.4
Fernando Apesteguía cedaad9317 mmc(4), mmcsc(4): Remove missing Xref
There is no evidence of at91_mci in the code whatsoever. Most of the at91
drivers where removed in 802baf0ba6

PR: 218970
Reported by: reezer@reezer.org

Approved by: imp@
Differential Revision: https://reviews.freebsd.org/D29193
2021-06-10 15:15:54 +02:00

59 lines
2.0 KiB
Groff

.\"
.\" Copyright (c) 2007 M. Warner Losh <imp@FreeBSD.org>
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.Dd June 10, 2021
.Dt MMC 4
.Os
.Sh NAME
.Nm mmc
.Nd MultiMediaCard and SD Card bus driver
.Sh SYNOPSIS
.Cd device mmc
.Sh DESCRIPTION
The
.Nm
driver implements the MMC and SD Card bus.
The
.Nm
driver supports all MMC and SD bridges in the system.
All SD or MMC cards in the system attach to an instance of
.Nm .
The
.Nm
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.
.Sh SEE ALSO
.Xr mmcsd 4 ,
.Xr sdhci 4
.Rs
.%T "SD Specifications, Part 1, Physical Layer, Simplified Specification"
.Re
.Rs
.%T "The MultiMediaCard System Specification"
.Re
.Sh BUGS
SDIO cards currently do not work.