Hello, We are developing PCMCIA smartcard reader driver. I have question, does any one can tell me how to improvement the T=1 command transfer. Base on 7816-3 specification, when T=1 command transfer. There are many times of command transfer when one block data to send. Ex:Scenario 1, when our device send a I(0,0)command to card, then we will got a answer by card I(0,0) then we must still send a command I(1,0) from device then we just can got the final reply I(1,0) from card does these procedure must be finish in one CT_data function call. or we directly reply the first I(0,0) reply to IFD_handler then IFD_handler will send I(1,0) command Does any one can tell me which way to improvement? Thanks *************************************************************** Linux Smart Card Developers - M.U.S.C.L.E. (Movement for the Use of Smart Cards in a Linux Environment) http://www.linuxnet.com/smartcard/index.html ***************************************************************