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

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svn path=/trunk/; revision=19520
This commit is contained in:
Hervé Poussineau 2005-11-24 09:18:16 +00:00
parent c4cc828696
commit bc8462e40a
1 changed files with 20 additions and 1 deletions
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21
reactos/ntoskrnl/io/pnpmgr.c
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@ -1922,9 +1922,11 @@ IopActionConfigureChildServices(
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 @@ IopActionConfigureChildServices(
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 @@ IopActionConfigureChildServices(
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;
}