--On Thursday, December 02, 2004 11:41:14 +0100 Karsten Ohme <[EMAIL PROTECTED]> wrote:
> Can I send and receive data simultaneously from a card with > SCardTransmit()? The T=0 protocol does not support case 4 commands, and requires some other mechanism to implement send/receive style PDU's. >From <http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816-3.aspx> (assuming it's an accurate copy of the standard...), which describes T=0, but not T=1: " - P3 codes the number n of data bytes (D1, ... , Dn) which are to be transmitted during the command. The direction of movement of these data is a function of the instruction. In an outgoing data transfer command, P3=0 introduces a 256 byte data transfer from the card. In an incoming data transfer command, P3=0 introduces no transfer of data." I do not know if every T=0 card supports GET RESPONSE. Such cards should need to support something like GET RESPONSE or not have any S/R style commands.
p7s6wy3GGh0Cf.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Muscle mailing list [EMAIL PROTECTED] http://lists.drizzle.com/mailman/listinfo/muscle
