| RTSX(4) | Kernel Interfaces Manual | RTSX(4) | 
NAME
 rtsx — Realtek SD card reader
SYNOPSIS
 rtsx* at pci?
sdmmc* at rtsx?
DESCRIPTION
 The 
rtsx driver provides support for the Realtek RTS5209, RTS5227, RTS5229, RTL8402, RTL8411 and RTL8411B SD card readers.
The sdmmc(4) subsystem performs SD/MMC transactions to communicate with whatever MMC, SD or SDHC devices are inserted into the SD slot.
 
HISTORY
 The rtsx driver first appeared in OpenBSD 5.3 and in NetBSD 7.0.
AUTHORS
 The rtsx driver was written by Stefan Sperling <stsp@openbsd.org> for OpenBSD and ported to NetBSD by NONAKA Kimihiro <nonaka@netbsd.org>.
BUGS
 The 
rtsx driver does not support MS (Memory Stick) and xD (Extreme Digital) devices even though the hardware supports them.
Support for SDIO interrupts is not implemented.