DriverMajorFunctionReturn class

This class is the event type class for driver major function call return events.

The following syntax is simplified from MOF code.

Syntax

[EventType{35}, EventTypeName{"DrvMjFnRet"}]
class DriverMajorFunctionReturn : DiskIo
{
  uint32 Irp;
  uint32 UniqMatchId;
};

Members

The DriverMajorFunctionReturn class has these types of members:

Properties

The DriverMajorFunctionReturn class has these properties.

Irp

Data type: uint32

Access type: Read-only

Qualifiers: WmiDataId(1), Pointer

IO request packet.

UniqMatchId

Data type: uint32

Access type: Read-only

Qualifiers: WmiDataId(2)

Identifier that uniquely identifies request. Use this identifier to correlate with the other driver events, for example, the DriverCompleteRequest event.

Requirements

Minimum supported client
Windows Vista [desktop apps only]
Minimum supported server
Windows Server 2008 [desktop apps only]

See also

DiskIo