Problems performing USB Isochronous/Bulk Read/Writes and unplugging device

Discussion in 'Windows Vista Drivers' started by Bernd Wiegand, Nov 17, 2005.

  1. Hello all, hello Mr. Roberts!

    After clearing some general misunderstandings, maybe you could help me
    once more with the second part of my former post. I would be very
    grateful for your assistance.

    I described it as follows:
    Moreover I recognized the same crash behaviour when I unplug one or
    both devices. I tried to get some debugging messages via DbgView from
    Sysinternals, but the system crashes, without storing the information
    into the given log file.

    I checked the in- and decrements on the stack without result. They seem
    okay to me. Since I solely introduced the validation routine for
    isochronous transfer and sourced the transfer algorithm of the bulk
    transmission out, I assume it must have something to do with the
    parameters I forward to these functions. I appreciate your help in
    advance, special thanks to Mr. Roberts who helped me this far.
    Bernd Wiegand, Nov 17, 2005
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  2. Bernd Wiegand

    Tim Roberts Guest

    Aren't you using the kernel debugger to trap this? You really need to.
    Debugging via printf will never work with this kind of problem.
    Tim Roberts, Nov 18, 2005
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  3. Bernd Wiegand, Nov 21, 2005
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