1.\" $NetBSD: rtsx.4,v 1.6 2020/04/27 23:06:34 jmcneill Exp $ 2.\" $OpenBSD: rtsx.4,v 1.6 2014/05/18 10:52:17 stsp Exp $ 3.\" 4.\" Theo de Raadt, 2006. Public Domain. 5.\" Stefan Sperling, 2012. Public Domain. 6.\" 7.Dd April 27, 2020 8.Dt RTSX 4 9.Os 10.Sh NAME 11.Nm rtsx 12.Nd Realtek SD card reader 13.Sh SYNOPSIS 14.Cd "rtsx* at pci?" 15.Cd "sdmmc* at rtsx?" 16.Sh DESCRIPTION 17The 18.Nm 19driver provides support for the Realtek RTS5209, RTS5227, RTS5229, 20RTS522A, RTS525A, RTL8402, RTL8411 and RTL8411B SD card readers. 21.Pp 22The 23.Xr sdmmc 4 24subsystem performs SD/MMC transactions to communicate with 25whatever MMC, SD or SDHC 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 first appeared in 33.Ox 5.3 34and in 35.Nx 7.0 . 36.Sh AUTHORS 37.An -nosplit 38The 39.Nm 40driver was written by 41.An Stefan Sperling 42.Aq stsp@openbsd.org 43for 44.Ox 45and ported to 46.Nx 47by 48.An NONAKA Kimihiro 49.Aq nonaka@netbsd.org . 50.Sh BUGS 51The 52.Nm 53driver does not support MS (Memory Stick) and xD (Extreme Digital) devices 54even though the hardware supports them. 55.Pp 56Support for SDIO interrupts is not implemented. 57