If by Bus you are referring to the driver which communicates with your PCI
device, then the IoCreateDevice call for each of the children stays where it
is in the AddDevice function of the Toaster sample. When you invalidate
relations for bus relation for your bus, PnP will then callback with a query
for device relations, at which time you return a list of all the PDO's your
bus created.

The toaster sample should already be designed this way in the sample code.

"Daniel Xu" <Danielxu22@cellink.com.cn> wrote in message
news:OdwrquHPDHA.2768@tk2msftngp13.phx.gbl...