## Physical Device Driver Reference

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### RMCreateAdapter Parameter - hParentDevice

hParentDevice (HDEVICE) - input Indicates the handle of the parent adapter or device for the adapter being created. This field can be set to NULL, in which case the adapter will be assigned to the default system bus. If the system contains multiple buses such as ISA or PCI, the HostBusType field will be used to choose the appropriate bus.