INFO: NDIS Level and Component Debugging Flags

There is additional Network Driver Interface Specification (NDIS) debugging information available in Windows 98 and Windows 98 SE. This article describes how to access that additional information using the global symbols, ndisdebuglevel and ndisdebugsystems.

Listed below are level and component NDIS debugging flags. These flags are set through the debugger, and provide trace information as execution passes through NDIS. These flags can be ORed together.

Execute the WDEB386 or WDEB98 debugger with the /B option to break the debugger after driver loading finishes and before VMM initialization begins. At the break, set the NDIS trace important flag, and go: After returning from WrapperSyCriticalInit, break into the system and set the ORed value of the trace information in which you are interested. Enter the ORed value in Intel byte order. Use of these flags requires the Windows 98/SE debug binary version of the Ndis.vxd device driver.

EXAMPLE: Set the level trace information for ERROR in the debugger in the following manner:

Level Descriptions	Value
INFORMATION	0x00000000
LOG	0x00000800
WARNING	0x00001000
ERROR	0x00002000
FATAL	0x00003000

EXAMPLE: Set the component trace information for RECEIVE and SEND in the debugger in the following manner:

Component Descriptions	Value
INITIALIZE	0x00000001
CONFIGURATION	0x00000002
SEND	0x00000004
RECEIVE	0x00000008
MEMORY	0x00000010
FILTER	0x00000020
PROTOCOL	0x00000040
REQUEST	0x00000080
UNLOAD	0x00000100
WORK ITEM	0x00000200
OPEN	0x00000400
LOCKS	0x00000800
PLUG AND PLAY	0x00001000
PM	0x00002000
RESET	0x00004000
Windows Machine Instrumentation	0x00008000
CoSTATUS	0x00010000
REFERENCE	0x00020000
ALL	0xFFFFFFFF

All trace output is emitted to the current kernel debugger.