[wdmaudiodev] Re: Obtaining unique identifier of Filter from its DispatchRoutines
- From: "Jeff Pages" <jeff@xxxxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 19 Feb 2009 13:24:00 +1100
Hi Swapnil,
You can use the FileObject on the IrpStack to identify which subdevice it's
referring to. The field pIrpStack->FileObject->FileName will contain the
name of your subdevice (eg. WAVE1).
Jeff
----- Original Message -----
From: swapnil kamble
To: wdmaudiodev@xxxxxxxxxxxxx
Sent: Wednesday, February 18, 2009 11:30 PM
Subject: [wdmaudiodev] Obtaining unique identifier of Filter from its
DispatchRoutines
Hi All,
I have created multiple instances of my Filter Centric AVStream
driver by using a call KsCreateFilterFactory (), in which I give RefString
name which matches with "wave name" in INF, and FilterDescriptor table,
which contains functions pointers related with Filter. Currently I am using
DispatchCreate and DispatchProcess.
What I want is, whenever any of Dispatch Routine related to that filter is
called, I want to know, which filter is responsible or associated with this
call.
Lets say I have 2 filters name VAD1,VAD2 with wave name WAVE1,WAVE2. I want
to get either of these identifier from its DispatchRoutines to identify the
filter correctly.
Thanks and Regards,
--
...Swapnil
|| Hare Krishna Hare Krishna Krishna Krishna Hare Hare ||
|| Hare Rama Hare Rama Rama Rama Hare Hare ||
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