1.\" $OpenBSD: rtsx.4,v 1.10 2017/09/06 13:07:38 jcs Exp $ 2.\" 3.\" Theo de Raadt, 2006. Public Domain. 4.\" Stefan Sperling, 2012. Public Domain. 5.\" 6.Dd $Mdocdate: September 6 2017 $ 7.Dt RTSX 4 8.Os 9.Sh NAME 10.Nm rtsx 11.Nd Realtek SD card reader 12.Sh SYNOPSIS 13.Cd "rtsx* at pci?" 14.Cd "sdmmc* at rtsx?" 15.Sh DESCRIPTION 16The 17.Nm 18driver provides support for the Realtek RTS5209, RTS5227, RTS5229, 19RTS522A, RTS5249, RTS525A, RTL8402, RTL8411, and RTL8411B SD card readers. 20.Pp 21The 22.Xr sdmmc 4 23subsystem performs SD/MMC transactions to communicate with SD 24or SDHC devices inserted into the SD slot. 25.Sh SEE ALSO 26.Xr intro 4 , 27.Xr sdmmc 4 28.Sh HISTORY 29The 30.Nm 31driver first appeared in 32.Ox 5.3 . 33.Sh AUTHORS 34.An -nosplit 35The 36.Nm 37driver was written by 38.An Stefan Sperling Aq Mt stsp@openbsd.org . 39.Sh BUGS 40The 41.Nm 42driver does not support MS (Memory Stick) and xD (Extreme Digital) devices 43even though the hardware supports them. 44.Pp 45Support for SDIO interrupts is not implemented. 46