Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
All drivers must be prepared to service IRP_MJ_PNP requests in a DispatchPnP routine.
When Sent
The PnP manager sends IRP_MJ_PNP requests during enumeration, resource rebalancing, and any other time Plug and Play activity occurs on the system. Drivers can also send certain IRP_MJ_PNP requests, depending on the minor function code.
Input Parameters
Depends on the value at MinorFunction in the current I/O stack ___location of the IRP. Every IRP_MJ_PNP request specifies a minor function code that identifies the requested PnP action.
Output Parameters
Depends on the value at MinorFunction in the current I/O stack ___location of the IRP.
Operation
See Plug and Play Minor IRPs for detailed information about IRP_MJ_PNP requests.
Requirements
Header |
Wdm.h (include Wdm.h, Ntddk.h, or Ntifs.h) |