Detect devices using the NULL driver, and set the STARTED flag

Modified: trunk/reactos/ntoskrnl/io/pnpmgr.c

--- trunk/reactos/ntoskrnl/io/pnpmgr.c	2005-11-24 09:11:44 UTC (rev 19519)
+++ trunk/reactos/ntoskrnl/io/pnpmgr.c	2005-11-24 09:18:16 UTC (rev 19520)
@@ -1922,9 +1922,11 @@

   PDEVICE_NODE DeviceNode,
   PVOID Context)
 {

-   RTL_QUERY_REGISTRY_TABLE QueryTable[2];

+   RTL_QUERY_REGISTRY_TABLE QueryTable[3];

    PDEVICE_NODE ParentDeviceNode;
    PUNICODE_STRING Service;

+   UNICODE_STRING ClassGUID;
+   UNICODE_STRING NullString = RTL_CONSTANT_STRING(L"");

    NTSTATUS Status;
 
    DPRINT("IopActionConfigureChildServices(%p, %p)\n", DeviceNode, Context);
@@ -1969,11 +1971,19 @@

 
       RtlZeroMemory(QueryTable, sizeof(QueryTable));
       RtlInitUnicodeString(Service, NULL);

+      RtlInitUnicodeString(&ClassGUID, NULL);

 
       QueryTable[0].Name = L"Service";
       QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
       QueryTable[0].EntryContext = Service;
 

+      QueryTable[1].Name = L"ClassGUID";
+      QueryTable[1].Flags = RTL_QUERY_REGISTRY_DIRECT;
+      QueryTable[1].EntryContext = &ClassGUID;
+      QueryTable[1].DefaultType = REG_SZ;
+      QueryTable[1].DefaultData = &NullString;
+      QueryTable[1].DefaultLength = 0;
+

       RtlAppendUnicodeToString(&RegKey, L"\\Registry\\Machine\\System\\CurrentControlSet\\Enum\\");
       RtlAppendUnicodeStringToString(&RegKey, &DeviceNode->InstancePath);
 
@@ -1993,6 +2003,15 @@

       if (Service->Buffer == NULL)
       {
          IopDeviceNodeSetFlag(DeviceNode, DNF_DISABLED);

+
+         if (ClassGUID.Length != 0)
+         {
+            /* Device has a ClassGUID value, but no Service value.
+             * Suppose it is using the NULL driver, so state the
+             * device is started */
+            DPRINT("%wZ is using NULL driver\n", &DeviceNode->InstancePath);
+            IopDeviceNodeSetFlag(DeviceNode, DNF_STARTED);
+         }

          return STATUS_SUCCESS;
       }