1.\" $NetBSD: sdhc.4,v 1.3 2010/03/27 03:04:52 nonaka Exp $ 2.\" $OpenBSD: sdhc.4,v 1.4 2009/02/14 18:47:45 deraadt Exp $ 3.\" 4.\" Theo de Raadt, 2006. Public Domain. 5.\" 6.Dd April 21, 2009 7.Dt SDHC 4 8.Os 9.Sh NAME 10.Nm sdhc 11.Nd SD Host Controller 12.Sh SYNOPSIS 13.Cd "sdhc* at pci?" 14.Cd "sdhc* at cardbus? function ?" 15.Cd "sdmmc* at sdhc?" 16.Sh DESCRIPTION 17The 18.Nm 19driver provides support for SD controllers following the 20SD Host Controller Standard Simplified Specification. 21.Pp 22The 23.Xr sdmmc 4 24subsystem performs SD/MMC transactions to communicate with 25whatever MMC, SD, SDHC, or SDIO devices are inserted into the SD slot. 26.Sh SEE ALSO 27.Xr intro 4 , 28.Xr sdmmc 4 29.Sh HISTORY 30The 31.Nm 32driver was written by 33.An Uwe Stuehler 34.Aq uwe@openbsd.org 35for 36.Ox 37and ported to 38.Nx 39by 40.An NONAKA Kimihiro 41.Aq nonaka@netbsd.org . 42