From 1832435672b5b53417b18ca6e9659f016784819f Mon Sep 17 00:00:00 2001
From: Johannes Anderwald <johannes.anderwald@reactos.org>
Date: Sat, 17 Jan 2009 22:36:58 +0000
Subject: [PATCH] - Handle IRP_MN_QUERY_INTERFACE

svn path=/trunk/; revision=38858
---
 reactos/drivers/wdm/audio/backpln/portcls/irp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/reactos/drivers/wdm/audio/backpln/portcls/irp.c b/reactos/drivers/wdm/audio/backpln/portcls/irp.c
index a1885e94018..2b382d0dc41 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/irp.c
+++ b/reactos/drivers/wdm/audio/backpln/portcls/irp.c
@@ -141,7 +141,16 @@ PortClsPnp(
         /* Do not complete? */
         Irp->IoStatus.Status = STATUS_SUCCESS;
     }
+    else if ( irp_stack->MinorFunction == IRP_MN_QUERY_INTERFACE )
+    {
+        //FIXME
+        // call next lower device object
+        Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
+        return Irp->IoStatus.Status;
+    }
+ 
 
+    DPRINT1("unhandled function %u\n", irp_stack->MinorFunction);
     return STATUS_SUCCESS;
 }