WPP Software Tracing Basics
Software tracing is one of the oldest debugging techniques. It provides a convenient and flexible way to generate detailed information about the behavior of a running driver at key points in its operation. Software tracing creates a running log of the driver’s operation. You use trace messages to put a variety of useful information into the trace log, such as:
The cause of state changes.
Notification of scavenging or cleanup operations.
Memory allocations.
I/O activities such as request completion or request cancellation.
Error data.
This chapter discusses how to implement WPP tracing in a WDF driver to create a trace log that contains a history of driver events. A related source of trace messages is the KMDF log, which is ...
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