FM / null

/sys/devices/virtual/mem/null

Name	Size	Mode	Actions
power/	-	0755	rm
subsystem/	-	0755	rm
dev	4096	0444	edit dl rm
uevent	4096	0644	edit dl rm

Edit: /sys/devices/virtual/mem/null/uevent (4096B)

MAJOR=1 MINOR=3 DEVNAME=null DEVMODE=0666