[wdmaudiodev] Audio Driver unloaded after sleep

  • From: "Rimola, Dominic J" <dominic.j.rimola@xxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Fri, 23 Mar 2007 10:41:22 -0700

I'm having an interesting issue pop up with our audio driver we are
developing.  I've noticed that sometimes after the system returns from
S3 or S4 the driver is disabled and then enabled.  This is happening on
Vista 32-bit/64-bit and happens with hibernation or sleep.  This does
not happen every time and most times the system returns without
disabling and then enabling the driver however when stressing the driver
for WHQL we've noticed this issue come up within a couple of hours every
time we run the common scenario sleep test.


Is this expected behavior of Vista or should I look at my driver design
for the cause of this issue.


Thanks for any help.



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