[FIX] Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5289

Couldn't get my SD card reader to work. This is what I had to do.

wget https://bugs.launchpad.net/bugs/971876/+attachment/2991730/+files/rts_bpp.tar.bz2
tar jxf rts_bpp.tar.bz2
cd rts_bpp/

Open the driver file “rtsx.c” and remove all instances of the string  “__devinit” “__devexit” and “__devexit_p” from it.

make
sudo make install
sudo depmod
sudo modprobe rts_bpp

Put in your SD card. It should be automatically mounted.