OpenPGP card
OpenPGP card v1.0/ 1.1 should work with OpenSC.
However the card can only be modified with GnuPG. So you need to use GnuPG to create/store keys etc.
Related code existing in OpenSC has not been tested lately and there has not been any feedback from users for a long time. Feedback is most welcome.
OpenPGP v1 cards can contain only 3 (three) 1024b keys.
Latest information indicates the card cannot store X.509 certificates.
OpenPGP card v2.0 is not currently supported by OpenSC.