MMC card reader on my new Thinkpad Edge Series E430 laptop didn’t work by default on Ubuntu. Thinkpad site didn’t list the Linux drivers and even on Realtek site, it was not found earlier as its one of the latest hardware device in market.
After spending 3 long months, my wait has ended and now I see linux drive being listed on Realtek website.
Installing the module is quite simple. Download the driver for linux and run few commands as you see in Readme. Once you’re done with depmod and reboot the machine , card reader works like a charm. Enjoy!