Multi card reader

Is there any way to have both slots of a multicard reader active at the same time? I can read my compact flash card or SD card by taking one out and putting the other in. But not when both are inserted. The device is set up as sda1. I tried adding sda2 to my fstab but of course that did not work. Is there a suffix like sda1-0 and sda1-1 or some such thing so both may be read simultaneously?

Have a look at the SCSI bus when you have both cards inserted. I have only a single card reader so can't try it myself.... :roll:

cdrecord -scanbus