struct _unnamed_2204// Size=0x20
{
    struct _IRP * Irp;// Offset=0x0 Size=0x8
    void * FileInformation;// Offset=0x8 Size=0x8
    unsigned long * Length;// Offset=0x10 Size=0x8
    enum _FILE_INFORMATION_CLASS FileInformationClass;// Offset=0x18 Size=0x4
    long CompletionStatus;// Offset=0x1c Size=0x4
};