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$FreeBSD$
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.
The most "complete" version of this will be the one in FreeBSD-current.
(see http://www.freebsd.org/ or from ftp://ftp.freesoftware.com/pub/FreeBSD/)
NOTICE: FreeBSD does not use block major numbers anymore, you neither
need to assign nor use a block major number for any device driver any
more.
chrdev name comments
0 cn console
1 ctty /dev/tty
2 mm /dev/mem,kmem,etc
3 wd ST506 disk controller (with IDE extensions)
4 was:swap /dev/drum
5 pts pseudo tty "tty" half
6 ptc pseudo tty "master" half
7 log system log
8 bqu B004 transputer board
9 fd floppy disk
10 wt QIC-02/36 tape
11 spigot Video capture?
12 sc syscons/pcvt virtual consoles
13 da SCSI "direct access devices"
14 sa SCSI "sequential access devices"
15 cd SCSI "CDROM type"
16 lpt PC parallel printer port
17 ch SCSI changer
18 nmdm nullmodem back-to-back tty ports
19 tw X-10 power interface
20 ?? reserved for local use
21 psm PS/2 Mouse
22 fd (/dev/stdin etc)
23 bpf Berkeley Packet Filter
24 pca PC speaker (/dev/pcaudio)
25 ?? was vat
26 spkr PC speaker (/dev/spkr)
27 mse Microsoft bus-mouse
28 sio 16450/16550 serial
29 mcd Mitsumi CDROM interface
30 snd sound driver system
31 pass SCSI "Application Pass-Thru"
32 lkmc Loadable Kernel Module Controller
33 lkm assigned to Loadable Kernel Modules
34 lkm assigned to Loadable Kernel Modules
35 lkm assigned to Loadable Kernel Modules
36 lkm assigned to Loadable Kernel Modules
37 lkm assigned to Loadable Kernel Modules
38 lkm assigned to Loadable Kernel Modules
39 apm Advanced Power Management
40 ctx Cortex
41 ?? was socksys
42 cx Cronyx/Sigma serial adapter
43 vn vnode "disk" device (retired)
44 gp GPIB
45 scd Sony CDROM interface
46 matcd Matsushita/Panasonic/Creative(SB) CDROM interface
47 gsc Genius Scanner
48 cy Cyclades
49 ?? was ssc
50 card pcmcia cards
51 joy joystick
52 tun IP tunnel device
53 snp tty snoop
54 OLDnic ISDN system
55 OLDisdn ISDN system
56 OLDity ISDN system
57 OLDitel ISDN system
58 dgb Digiboard PC/Xe
59 OLDispy ISDN system
60 OLDnnic ISDN system
61 pt SCSI "processor target"
62 worm SCSI "worm type"
63 rc Riscom/8 driver
64 ?? Talisman
65 targ SCSI target sample driver
66 labpc National Instruments LabPC
67 meteor Matrox Meteor video capture
68 si Specialix SI/XIO (peter@freebsd.org)
69 wcd ATAPI CDROM client of "wd"
71 asc AmiScan driver
72 stl Stallion (cd1400 based) (gerg@stallion.oz.au)
73 ?? was qcam
74 ccd concatenated disk
75 stli Stallion (intelligent cdk based) (gerg@stallion.oz.au)
76 scc IBM Smart Capture Card (ohashi@mickey.ai.kyutech.ac.jp)
77 cyy Cyclades Ye/PCI serial card
78 pci PCI bus
79 ipl IP Filter
80 xdcp Assigned to Chris Ficklin <chris@serengeti.com>
81 rp RocketPort/Steve Gericke <steveg@comtrol.com>
82 ppi Generic Parallel I/O <Nicolas.Souchu@prism.uvsq.fr>
83 can CAN16-2 CAN-PC Interface
84 dtfp Datum Time and Frequency processor (louie@UU.NET)
85 vesa VESA support device (j_mini@efn.org)
86 alog Industrial Computer Source AIO8-P driver (deprecated)
87 wfd ATAPI floppy client of "wd"
88 dpt DPT RAID Controller <shimon@i-connect.net>
89 pps Pulse-Per-Second timing interface
90 wst ATAPI tape client of "wd"
91 vinum Volume manager
92 bktr Bt848 video capture driver (hasty@star-gate.com)
93 coda CODA filesystem.
94 loran Loran-C Receiver
95 md Memory Disk
96 altq alternate queueing (including cbq, red, wfq)
97 prom Alpha PROM console
98 loe Loopback pseudo-ethernet (sbabkin@dcn.att.com)
99 ct Cronyx/Tau serial adaptor
100 xrpu Xilinx Reprogrammable Processing Unit
102 fla M-Systems DiskOnChip(r)
103 streams SVR4 Streams emulation <newton@atdot.dotat.org>
104 xpt CAM Transport Layer Services
105 iic I2C bus generic i/o
106 smb System Management Bus generic i/o
107 3dfx 3Dfx driver <cokane>
108 usb Universal Serial Bus <n_hibma>
109 ida Intelligent Disk [Array] (md@doc.ic.ac.uk)
110 ses SCSI Environmental Services driver (mjacob@feral.com)
111 ums USB Mouse <n_hibma>
112 kbd keyboard
113 ulpt USB Printer <n_hibma>
114 ugen USB Generic device <n_hibma>
115 dag University of Waikato DAG network capture boards
116 ad ATA disks
117 acd ATAPI CDROM
118 afd ATAPI floppy
119 ast ATAPI tape
120 aud Audit Device <rwatson@FreeBSD.org>
121 onew Dallas Semiconductor One-Wire bus <phk@freebsd.org>
122 uhid USB HID devices <n_hibma>
123 fb frame buffer
124 ucdc USB Communication Class Driver <n_hibma>
125 digio Advantech PCI-1750 IO card jen@vulture.dmem.strath.ac.uk
126 sync Generic sync port support <phk>, <brian>
127 fire Firewire driver <ikob@koganei.wide.ad.jp>
128 arla Arla (AFS-clone) driver
129 i2o Intelligent I/O Character Device
130 mlx Mylex DAC960 RAID (control device)
131 mlxd Mylex DAC960 RAID (disk device)
132 amr AMI MegaRAID (control device)
133 amrd AMI MegaRAID (disk device)
134 taupci Cronyx Tau-PCI card <vak@hanoi.cronyx.ru>
135 zsc TurboLaser console uart
136 ipr Iprobe on-chip perf. counters (gallatin@freebsd.org)
137 nfp nFast PCI crypto accelerator (support@ncipher.com)
138 usio USB Serial support <n_hibma>
139 wanrouter Sangoma Technologies Inc. (al.feldman@sangoma.com)
140 pcfclock PCFCLOCK <sascha@schumann.cx>
141 pcdmx PCDMX theatre lighting controller
142 skip SKIP port (security/skip) control device
143 urio USB Rio 500 <n_hibma>
144 nsmb SMB/CIFS protocol interface <bp>
145 dri DRI Graphics for OpenGL <dfr>
146 twe 3ware Escalade ATA RAID (controller)
147 twed 3ware Escalade ATA RAID (drives)
148 agp AGP <dfr>
149 tap Ethernet tunneling device <myevmenkin@att.com>
150 aac Adaptec FSA RAID (controller)
151 aacd Adaptec FSA RAID (drives)
152 acpi ACPI bios support (Takanori Watanabe takawata@shidahara1.planet.sci.kobe-u.ac.jp)
153 ti Tigon Gigabit Ethernet driver (ken@FreeBSD.ORG)
154 asr Adaptec SCSI RAID <msmith@freebsd.org>
155 phone Quicknet PhoneJACK and LineJACK cards for VoIP <roger>
156 uscanner USB Scanners <n_hibma>
157 ar ATA "pseudo" RAID device
158 mly Mylex RAID control device
159 ata ATA control device
160 spic Sony Programmable I/O Controller (jogdial)
161 swdoc Sitara networks watchdog device
162 digi Digiboard
163 gdt ICP Vortex RAID controller
164 src Intel SRC RAID controller
200 ?? entries from 200-252 are reserved for local use
252 ?? entries from 200-252 are reserved for local use
254 internal Used internally by the kernel
255 bad choice -1 is 255 which has magic meanings internally
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