Solved. I have to specify protocol T=1: card = pycsc.pycsc(protocol=pycsc.SCARD_PROTOCOL_T1) Maybe the error code 0x00000032 is an error of the PC/SC driver (OmniKey CardMan 6121 USB Stick)? Regards, Mike. _______________________________________________ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel