// wdm.h
CLFSUSER_API BOOLEAN ClfsLsnNull(
[in] const CLFS_LSN *plsn
);
View the official Windows Driver Kit DDI referenceNo description available.
The ClfsLsnNull routine determines whether a specified LSN is equal to the smallest possible LSN, CLFS_LSN_NULL.
plsn [in]A pointer to a CLFS_LSN structure that supplies the LSN to be tested.
ClfsLsnNull returns TRUE if the LSN supplied by the caller is equal to CLFS_LSN_NULL; otherwise, it returns FALSE.
For an explanation of CLFS concepts and terminology, see Common Log File System.