IRP Function Codes

IRP Function Codes

This section summarizes the aspects of handling and operation of I/O request packet (IRP) function codes that are specific to file system drivers and file system filter drivers.

For detailed information about how to write dispatch routines that perform the tasks that are described in the "Operation: File System Drivers" and "Operation: File System Filter Drivers" subsections of each topic, see Writing IRP Dispatch Routines.

For more general information about these requests, see IRP Major Function Codes.

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