etc/udev/suse/95-debug.rules

   1 # debug events to /events, but not on default udev_log="err"
   2 ENV{UDEV_LOG}=="[4-9]", RUN+="/sbin/udeventrecorder"
   3
   4 # event to be catched by udevmonitor
   5 RUN+="socket:/org/kernel/udev/monitor"
   6