Custom OIDs in my NDIS IM Driver - One class with multiple items

Hi,

I have an existing NDIS IM driver which already contains some custom OIDs with their respective MOF definitions, NDIS_GUID entries and so on and they work fine. I can access these values through WMI Object Browser.

I am currently working on extending this driver and part of that work requires me to add a new class in my MOF file for statistical data which I will be generating in the driver. I have been able to copy some of the existing custom OID code to create a new class with a single data item, and that compiles ok, but I would ideally like to have multiple data items in the one class and this is where I've got confused.

My MOF entry looks like this:

Code:

---

[
        WMI,
        Dynamic,
        Provider("WMIProv"),
        guid("{D9B70AEB-B136-4e9c-A7D6-2AEFFCD854F7}"),
        localeid(0x409),
        WmiExpense(1),
        Description("My Stats")
]
class MyStats
{
        [key,read]
        string InstanceName;         

        [read]
        boolean Active;

        [
                read,
                DisplayName("Counter 1"),
                WmiDataId(1)
        ]
        UINT32 Counter1;
       
        [
                read,
                DisplayName("Counter 2"),
                WmiDataId(2)
        ]
        UINT32 Counter2;
};

---

but my question is, what do I put in my NDIS_GUID struct to represent this? I was thinking something like:

Code:

---

{
  MyStatsGuid,
  OID_MY_STATS,
  sizeof(ULONG) + sizeof(ULONG),
  fNDIS_GUID_TO_OID | fNDIS_GUID_ALLOW_READ | fNDIS_GUID_ALLOW_WRITE,
}

---

But is this right? If this is the case, how do I handle setting each independent value in my MiniportSetInformation routine as I will only be able to switch on OID_MY_STATS surely?

I'd really appreciate some help here, the alternative appears to be putting each value in its own class, but I'm looking at 20-odd values and this seems like a LOT of code, hence the reason I'm investigating this.

Cheers

Richard