I don't understand why you can not use SmartCardT0/1Reply
I have written a driver for an intelligent reader using the
SmartcardT0Request to make up the packet and then after reading back my
proprietary protocol just "copying" the data into the
SmartcardExtension->SmartcardReply.Buffer
then calling SmartcardT0Reply
It seems to work fine.
Am I missing something?

____________________
Andrew Whitaker
mailto:andrewttfn.net

> -----Original Message-----
> From: Derek Diamond [mailto:derekDIAMONDSOFTWARECONCEPTS.COM]
> Sent: 09 February 2001 12:26
> To: SmartCardDDKDISCUSS.MICROSOFT.COM
> Subject: Getting transmit data back to the caller
>
>
> I am writing a smartcard reader driver. The reader is fairly
> intelligent in
> that it handles Transmitting and receiving data to and from the Card
> itself. All I need do is give it the data stream and read
> back the reply.
>
> However how do I get the Smardcard library to pass back the
> read back data
> to the caller. I cannot use SmartCardT0/1Reply as these
> expect the data to
> be sent and received in chunks instead of one stream.
>
> I tried SmardCardRawReply in case, but still the data is not
> sent back.
> The data length of the reply is sent back correctly however.
>
> I checked after the call to SmartcardDeviceControl and the
> returned data is
> in the SystemBuffer and UserBuffer of the IRP. So it seems
> the Library is
> failing to pass back the reply to the calling code.
>
> Any Ideas will be most appreciated, as when this is handled
> ny driver is
> complete.
>
> regards
>
> Derek
>

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