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From: Cong Ling (congling21CN.COM)
Date: Thu Apr 18 2002 - 01:48:57 CDT

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    Hi all,
       I'm writing a device driver for a usb token. (ReaderType =
    SCARD_READER_TYPE_VENDOR;SupportedProtocols = SCARD_PROTOCOL_T0 |
    SCARD_PROTOCOL_T1;)
       I wrote "RDF_SET_PROTOCOL" callback function and set it into the
    pSmartExt->ReaderFunction[RDF_SET_PROTOCOL]. But when I use the SCard Test
    Program to test it,the smartcard ddk function "SmartcardDeviceControl"
    didn't call my function and simply return 0xC0000014
    (STATUS_UNRECOGNIZED_MEDIA).

       Thanks for any help.

    Regards,
    congling