2 .\" Copyright (c) 2007 M. Warner Losh <imp@FreeBSD.org>
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
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9 .\" 2. The name of the author may not be used to endorse or promote products
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12 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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14 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
20 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
21 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 .Nd MultiMediaCard and SD Card bus driver
37 driver implements the MMC and SD Card bus.
40 driver supports all MMC and SD bridges in the system.
41 All SD or MMC cards in the system attach to an instance of
45 bus typically has only one slot, and only memory cards.
46 MultiMediaCards exist only in memory.
47 SD Cards exist as memory, I/O, or combination cards.
53 .%T "SD Specifications, Part 1, Physical Layer, Simplified Specification"
56 .%T "The MultiMediaCard System Specification"
59 SDIO cards currently do not work.