1394 Async Write STATUS_IO_TIMEOUT

Discussion in 'Windows Vista Drivers' started by Volker Moebius, Jun 22, 2004.

  1. Hi,

    I have to perform an async write to an IEEE 1394 bus device. The device 'stalls' the response until
    it completes the operation which is triggered by the write request. Currently this takes aprox. 270
    ms. But it seems that the 1394 bus driver stack of W2k Prof. SP4 completes the transaction prior by
    returning STATUS_IO_TIMEOUT. (After approx. 200ms.) Under WXp SP1 I could not observe this behavior
    so far.
    Are the corresponding timeout values defined in the IEEE 1394 bus spec.?
    Is there a facility to tweak the applied timeout value at the 1394 bus driver stack?

    Any hints are appreciated.

    Volker Moebius, Jun 22, 2004
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