Hopefully, this list will one day be obsoleted by DEVFS, but for now
this is the current allocation of device major numbers.

For local use, you are encouraged to use the reserved numbers.

If you intend the driver to be available, send email to the
hackers@freebsd.org mailing list to see about having a number
reserved for you.

blkdev	name		comments
0	wd
1	no
2	fd
3	wt
4	sd
5	st
6	cd
7	mcd
8	lkm
9	lkm
10	lkm
11	lkm
12	lkm
13	lkm
14	??		reserved for local use
15	vn
16	scd
17	matcd
18	ata
19	wcdb
20	od

chrdev	name		comments
0	cn
1	ctty
2	mm
3	wd
4	swap		/dev/drum
5	pts
6	ptc
7	log
8	bqu
9	fd
10	wt
11	spigot
12	sc
13	sd
14	st
15	cd
16	lpt
17	ch
18	su
19	tw
20	??		reserved for local use
21	psm
22	fd		(/dev/stdin etc)
23	bpf
24	pca
25	??		was vat
26	spkr
27	mse
28	sio
29	mcd
30	snd
31	uk
32	lkmc
33	lkm
34	lkm
35	lkm
36	lkm
37	lkm
38	lkm
39	apm
40	ctx		cortex
41	??		was socksys
42	cx		cronyx
43	vn
44	gp		GPIB
45	scd		sony cd
46	matcd		SB cd
47	gsc
48	cy		cyclades
49	ssc		scsi super
50	crd		pcmcia
51	joy		joystick
52	tun		IP tunnel device
53	snp		tty snoop
54	nic
55	isdn
56	ity
57	itel
58	dgb		digiboard
59	ispy
60	nnic
61	pt
62	worm
63	rc
64	??		talisman
65	sctarg		scsi target
66	labpc
67	meteor
68	si		specialix
69	wcd		atapi cd
70	od
71	asc
72	???		stallion (see ungar)
73	qcam		quickcam