The towitoko driver might support these readers:

• Towitoko Chipdrive Micro
• Towitoko Kartenzwerg
• Towitoko Kartenzwerg II
• Towitoko Chipdrive External
• Towitoko Chipdrive Twin
• Towitoko Chipdrive Internal
  and compatibles.

“CHIPDRIVE micro 120 V4.30” with OpenCT 0.6.4 and OpenSC 0.9.6 with several different cards work perfectly. Tested on Linux (Debian sarge, May 2005, Kernel 2.6.11.*).

http://www.chipdrive.de/ the manufacturer of these readers.