[USBAUDIO]

[reactos.git] / reactos / drivers / usb / usbaudio / filter.c

diff --git a/reactos/drivers/usb/usbaudio/filter.c b/reactos/drivers/usb/usbaudio/filter.c
index fe76f55..93ad768 100644 (file)
--- a/reactos/drivers/usb/usbaudio/filter.c
+++ b/reactos/drivers/usb/usbaudio/filter.c
@@ -448,8 +448,12 @@ USBAudioPinBuildDescriptors(
                 Pins[Index].PinDescriptor.DataFlow = KSPIN_DATAFLOW_IN;
             }
 
+
+            Pins[Index].Flags = KSPIN_FLAG_PROCESS_IN_RUN_STATE_ONLY | KSFILTER_FLAG_CRITICAL_PROCESSING;
+
             /* irp sinks / sources can be instantiated */
             Pins[Index].InstancesPossible = 1;
+            Pins[Index].InstancesNecessary = 1;
         }
         else
         {