The Device Node Status flags describe the status of a device.
The most important flags are:
The device was created and is owned by the PnP Manager. It was not created by a bus driver.
The device node is a duplicate of another enumerated device node.
The device node is the root node created by the hardware abstraction layer (HAL).
The device needs to be re-enumerated.
The PDO for the device was exposed by its parent.
The operating system should send IRP_MN_QUERY_ID requests to the device driver.
The device has resources assigned by the BIOS. The device is considered pseudo-started and needs to participate in rebalancing.
The boot resources of the device are reserved.
The device does not require resources.
The device's resource requirements list is a filtered list.
The device's resource requirements list has changed.
The device can be restarted with new resources without being stopped.
The device's controlling driver is a non-PnP driver.
The device has a problem and will be removed.
The device reported PNP_DEVICE_FAILED without also reporting PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED.
The device node has hardware verification.
The device's PDO is no longer returned in an IRP_QUERY_RELATIONS request.
The device node was created for legacy resource allocation.
The device node has triggered rebalancing.
The device is being ejected or is related to a device that is being ejected.
One or more of the drivers for the device node have been blocked from loading.
One or more children of the device node have invalid IDs.
The device does not support asynchronous starts.
The device does not support asynchronous enumeration.
The device is locked for rebalancing.
An IRP_MN_QUERY_REMOVE_DEVICE request is in progress for the device.
There is no Registry entry of the lower-device-filters type for the device.
There is no Registry entry of the lower-class-filters type for the device.
There is no Registry entry of the service the for the device.
There is no Registry entry of the upper-device-filters type for the device.
There is no Registry entry of the upper-class-filters type for the device.
Enumeration of the device is waiting until the driver attaches its FDO.