[wdmaudiodev] Re: How to pend a KSPropertyRequest?
- From: "Jeff Pages" <jeff@xxxxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Fri, 19 Jun 2009 15:54:17 +1000
Back in 2005, KS posted this query about pending a KSPropertyRequest but never
received any replies. I'm now trying to do the same thing but striking the same
problem (a BSOD for Multiple IRP Complete Request). As far as I can see I'm
doing all the right things - calling IoMarkIrpPending before queuing the
request, returning STATUS_PENDING from my property handler then calling
PCCompletePendingPropertyRequest with STATUS_SUCCESS after dequeuing and
fulfilling the request. It looks like the port class completes the request's
IRP even though my property handler returns STATUS_PENDING.
Does anyone know if it's actually possible to pend a KSPropertyRequest?
Jeff
----- Original Message -----
From: KS
To: wdmaudiodev@xxxxxxxxxxxxx
Sent: Saturday, March 19, 2005 5:28 AM
Subject: [wdmaudiodev] How to pend a KSPropertyRequest?
Hi,
I'm trying to pend a KSPropertyRequest and complete it at a later stage using
the PCCompletePendingPropertyRequest call. According to documentation, all I
need to do is to complete the request with STATUS_PENDING, store the pointer to
the request, and later pass the pointer to the PCCompletePendingPropertyRequest
call. However, when I make the call, I get a BSOD for Multiple IRP Complete
Request. It seems like the request has been completed. Anyone can advise me on
how to properly pend a PropertyRequest? Thanks
KS
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