在给IFS　fiter driver的MajorFunction进行初始化时

请教：
在给IFS　fiter driver的MajorFunction进行初始化时(就象下面的code这样)
DriverObject->MajorFunction[IRP_MJ_CREATE] = SpyCreate;
    DriverObject->MajorFunction[IRP_MJ_CLOSE] = SpyClose;
    DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = SpyFsControl;
我的问题是：SpyCreate、SpyClose、SpyFsControl等等这样的函数的参数是不是只能有两个，且一定分别是PDEVICE_OBJECT和PIRP Irp的啊，也就是说这样的函数的形式是不是一定是NTSTATUS
xxxCreate (
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
)(主要是输入参数)这样的形式啊？

对。。。。。

看看ddk
NTSTATUS
(*PDRIVER_INITIALIZE) (
    IN PDRIVER_OBJECT DriverObject,
    IN PUNICODE_STRING RegistryPath
    );
PDRIVER_STARTIO DriverStartIo
Is the entry point for the driver\'s StartIo routine, if any, which is set by the DriverEntry routine when the driver initializes. If a driver has no StartIo routine, this field is NULL. A StartIo routine is declared as follows:
VOID
(*PDRIVER_STARTIO) (
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );
PDRIVER_UNLOAD DriverUnload
Is the entry point for the driver\'s Unload routine, if any, which is set by the DriverEntry routine when the driver initializes. If a driver has no Unload routine, this field is NULL. An Unload routine is declared as follows:
VOID
(*PDRIVER_UNLOAD) (
    IN PDRIVER_OBJECT DriverObject
    );
PDRIVER_DISPATCH MajorFunction[IRP_MJ_MAXIMUM_FUNCTION+1]
Is an array of one or more entry points for the driver\'s Dispatch routines. Each driver must set at least one Dispatch entry point in this array for the IRP_MJ_XXX requests that the driver handles. Any driver can set as many separate Dispatch entry points as the IRP_MJ_XXX codes that the driver handles. Each Dispatch routine is declared as follows:
NTSTATUS
(*PDRIVER_DISPATCH) (
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );
 :D