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.\" $OpenBSD: sdhc.4,v 1.4 2009/02/14 18:47:45 deraadt Exp $
.\"
.\" Theo de Raadt, 2006. Public Domain.
.\"
.Dd $Mdocdate: February 14 2009 $
.Dt SDHC 4
.Os
.Sh NAME
.Nm sdhc
.Nd SD Host Controller
.Sh SYNOPSIS
.Cd "sdhc* at pci?"
.Cd "sdmmc* at sdhc?"
.Sh DESCRIPTION
The
.Nm
driver provides support for SD controllers following the
SD Host Controller Standard Simplified Specification.
.Pp
The
.Xr sdmmc 4
subsystem performs SD/MMC transactions to communicate with
whatever MMC, SD, SDHC, or SDIO devices are inserted into the SD slot.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr sdmmc 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Ox 4.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Uwe Stuehler Aq uwe@openbsd.org .
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