Copyright (c) 2007 M. Warner Losh
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PRO...
(The comments found at the beginning of the groff file "man4/mmc.4freebsd".)
- MultiMediaCard and SD Card bus driver
driver implements the MMC and SD Card bus.
driver supports all MMC and SD bridges in the system.
All SD or MMC cards in the system attach to an instance of
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.
"SD Specifications, Part 1, Physical Layer, Simplified Specification"
"The MultiMediaCard System Specification"
SDIO cards currently do not work.