Hi all.
I'm developing TDI filter driver, but I don't understand one thing. When
I
caught all IRPs going to TDI driver I often got for major function
IRP_MJ_INTERNAL_DEVICE_CONTROL minor function with code 0. What
does it mean? I have found that documented codes are only:

#define TDI_ASSOCIATE_ADDRESS (0x01)
#define TDI_DISASSOCIATE_ADDRESS (0x02)
#define TDI_CONNECT (0x03)
#define TDI_LISTEN (0x04)
#define TDI_ACCEPT (0x05)
#define TDI_DISCONNECT (0x06)
#define TDI_SEND (0x07)
#define TDI_RECEIVE (0x08)
#define TDI_SEND_DATAGRAM (0x09)
#define TDI_RECEIVE_DATAGRAM (0x0A)
#define TDI_SET_EVENT_HANDLER (0x0B)
#define TDI_QUERY_INFORMATION (0x0C)
#define TDI_SET_INFORMATION (0x0D)
#define TDI_ACTION (0x0E)

#define TDI_DIRECT_SEND (0x27)
#define TDI_DIRECT_SEND_DATAGRAM (0x29)

(sorry for my english :)