1.\" $NetBSD: sdhc.4,v 1.5 2016/06/21 14:31:48 wiz 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 June 21, 2016 7.Dt SDHC 4 8.Os 9.Sh NAME 10.Nm sdhc 11.Nd SD Host Controller 12.Sh SYNOPSIS 13.Cd "sdhc* at acpi?" 14.Cd "sdhc* at pci?" 15.Cd "sdhc* at cardbus? function ?" 16.Cd "sdmmc* at sdhc?" 17.Sh DESCRIPTION 18The 19.Nm 20driver provides support for SD controllers following the 21SD Host Controller Standard Simplified Specification. 22.Pp 23The 24.Xr sdmmc 4 25subsystem performs SD/MMC transactions to communicate with 26whatever MMC, SD, SDHC, or SDIO devices are inserted into the SD slot. 27.Sh SEE ALSO 28.Xr intro 4 , 29.Xr sdmmc 4 30.Sh HISTORY 31The 32.Nm 33driver was written by 34.An Uwe Stuehler 35.Aq uwe@openbsd.org 36for 37.Ox 38and ported to 39.Nx 40by 41.An NONAKA Kimihiro 42.Aq nonaka@netbsd.org . 43