I would like to get my built in media card reader working under Debian, but am not sure where to start. here is lspci part for what I think it the media card reader:

03:04.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
03:04.3 Mass storage controller: Texas Instruments PCIxx21 Integrated FlashMedia Controller
03:04.4 Generic system peripheral [0805]: Texas Instruments PCI6411, PCI6421, PCI6611, PCI6621, PCI7411, PCI7421, PCI7611, PCI7621 Secure Digital (SD) Controller

Plugin the cardreader with a media card inserted and type the command and see what the command ' dmesg ' says.
Also you post output of
lsmod
lsusb
cat /proc/scsi/scsi

What kind of card reader is it? Single card type or excepts multi types of cards?

If no other USB, Firewire, Scsi devices exist then it will more than likely be /dev/sda and the first partition if any exist will be /dev/sda1. Do an advanced search for cardreader and brian1 as a user. There are some mention issues with multislot readers. I do not know if debian default kernels support multilun support.

Brian