1.\" $OpenBSD: dwmmc.4,v 1.1 2017/08/04 12:44:50 kettenis Exp $ 2.\" 3.\" Copyright (c) 2017 Mark Kettenis <kettenis@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: August 4 2017 $ 18.Dt DWMMC 4 19.Os 20.Sh NAME 21.Nm dwmmc 22.Nd Synopsis DesignWare MMC/SD/SDIO controller 23.Sh SYNOPSIS 24.Cd "dwmmc* at fdt?" 25.Cd "sdmmc* at dwmmc?" 26.Sh DESCRIPTION 27The 28.Nm 29driver provides support for various MMC/SD/SDIO controllers based on 30the Synopsis Designware SD/eMMC core. 31These controllers are typically found on SoCs, such as the Rockchip 32RK3288/RK3399 and Samsung Exynos ARM SoCs. 33.Pp 34The 35.Xr sdmmc 4 36subsystem performs SD/MMC transactions to communicate with whatever 37MMC/SD/SDIO devices are inserted into the card slot or directly 38connected to the controller. 39.Sh SEE ALSO 40.Xr intro 4 , 41.Xr sdmmc 4 42.Sh HISTORY 43.Ox 44support for 45.Nm 46first appeared in 47.Ox 6.2 . 48.Sh AUTHORS 49.An -nosplit 50The 51.Nm 52driver was written by 53.An Mark Kettenis Aq Mt kettenis@openbsd.org . 54