WDM USB UART Serial Driver Read Module

Discussion in 'Windows Vista Drivers' started by vijayaraju.k, Sep 25, 2007.

  1. vijayaraju.k

    vijayaraju.k Guest

    Hi All,

    I am developing a WDM USBSerial driver which interfaces a Virtual COM
    port. I have completed developing 70% of the code. I have used Serial
    sample as the base to start with. The writes are working fine but
    reads are not working. For the standard serial driver whenever data is
    available interrupt is trigged and data is collected.

    For virtual port, i assume there should be worker thread which
    constantly polls for data, and when data is available data should be
    collected and written to USB endpoint.

    Let me know if my assumption is correct. If not let me know all your
    suggestions how to proceed further.

    Thank You.
    vijayaraju.k, Sep 25, 2007
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  2. vijayaraju.k

    Tim Roberts Guest

    Don't you have that backwards? You're talking about reading from the USB
    endpoint and making it available to the app, right?
    Tim Roberts, Sep 27, 2007
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