[tde-users] Camera mounts as Unknown Device

I 'm not sure if this is rather a linux or a TDE question. I've got a new Canon Camera. When I connect it to my PC with an USB cable, it is mounted as mass storage (wich is very good). It has two SD cards that appear as two directories in a Konqueror window. So far so good. However, this window says "system:/media/Unknown Device 1-12:1.0" and it is nowhere to be found, not in /media/<user>, not in /mnt, mount also gives me nothing (or I don't know what to look for). So I can't unmount it, I have to turn the camera off. I don't think it's a real problem as the SD cards are exfat formated and I check that nothing's being read/writen, but I'd prefer to unmount. If the system can mount this "Unknown Device 1-12:1.0", it must be somewhere, no? I'm not looking for a way to open the camera in Digikam or so. Coying the files with Konqueror is just what I want, but I'd like a way to know the mounting point. I got the USB IDs so I was thinking of writing some udev rule. lsusb returns Bus 001 Device 012: ID 04a9:32f5 Canon, Inc. but there is no 012 or 12 in /dev/bus/usb...