<dec f='src/src/sys/sys/event.h' l='238' type='int kfilter_register(const char * , const struct filterops * , int * )'/>
<def f='src/src/sys/kern/kern_event.c' l='289' ll='349' type='int kfilter_register(const char * name, const struct filterops * filtops, int * retfilter)'/>
<doc f='src/src/sys/kern/kern_event.c' l='284'>/*
 * Register a new kfilter. Stores the entry in user_kfilters.
 * Returns 0 if operation succeeded, or an appropriate errno(2) otherwise.
 * If retfilter != NULL, the new filterid is returned in it.
 */</doc>
