2 LINUX ALLOCATED DEVICES (2.6+ version)
4 Maintained by Alan Cox <device@lanana.org>
6 Last revised: 6th April 2009
8 This list is the Linux Device List, the official registry of allocated
9 device numbers and /dev directory nodes for the Linux operating
12 The latest version of this list is available from
13 http://www.lanana.org/docs/device-list/ or
14 ftp://ftp.kernel.org/pub/linux/docs/device-list/. This version may be
15 newer than the one distributed with the Linux kernel.
17 The LaTeX version of this document is no longer maintained.
19 This document is included by reference into the Filesystem Hierarchy
20 Standard (FHS). The FHS is available from http://www.pathname.com/fhs/.
22 Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga
23 platform only. Allocations marked (68k/Atari) apply to Linux/68k on
24 the Atari platform only.
26 The symbol {2.6} means the allocation is obsolete and scheduled for
27 removal once kernel version 2.6 (or equivalent) is released. Some of these
28 allocations have already been removed.
30 This document is in the public domain. The author requests, however,
31 that semantically altered versions are not distributed without
32 permission of the author, assuming the author can be contacted without
33 an unreasonable effort.
35 In particular, please don't sent patches for this list to Linus, at
36 least not without contacting me first.
38 I do not have any information about these devices beyond what appears
39 on this list. Any such information requests will be deleted without
43 **** DEVICE DRIVERS AUTHORS PLEASE READ THIS ****
45 To have a major number allocated, or a minor number in situations
46 where that applies (e.g. busmice), please contact me with the
47 appropriate device information. Also, if you have additional
48 information regarding any of the devices listed below, or if I have
49 made a mistake, I would greatly appreciate a note.
51 I do, however, make a few requests about the nature of your report.
52 This is necessary for me to be able to keep this list up to date and
53 correct in a timely manner. First of all, *please* send it to the
54 correct address... <device@lanana.org>. I receive hundreds of email
55 messages a day, so mail sent to other addresses may very well get lost
56 in the avalanche. Please put in a descriptive subject, so I can find
57 your mail again should I need to. Too many people send me email
58 saying just "device number request" in the subject.
60 Second, please include a description of the device *in the same format
61 as this list*. The reason for this is that it is the only way I have
62 found to ensure I have all the requisite information to publish your
63 device and avoid conflicts.
65 Third, please don't assume that the distributed version of the list is
66 up to date. Due to the number of registrations I have to maintain it
67 in "batch mode", so there is likely additional registrations that
68 haven't been listed yet.
70 Fourth, remember that Linux now has extensive support for dynamic allocation
71 of device numbering and can use sysfs and udev to handle the naming needs.
72 There are still some exceptions in the serial and boot device area. Before
73 asking for a device number make sure you actually need one.
75 Finally, sometimes I have to play "namespace police." Please don't be
76 offended. I often get submissions for /dev names that would be bound
77 to cause conflicts down the road. I am trying to avoid getting in a
78 situation where we would have to suffer an incompatible forward
79 change. Therefore, please consult with me *before* you make your
80 device names and numbers in any way public, at least to the point
81 where it would be at all difficult to get them changed.
83 Your cooperation is appreciated.
86 0 Unnamed devices (e.g. non-device mounts)
87 0 = reserved as null device number
88 See block major 144, 145, 146 for expansion areas.
91 1 = /dev/mem Physical memory access
92 2 = /dev/kmem Kernel virtual memory access
93 3 = /dev/null Null device
94 4 = /dev/port I/O port access
95 5 = /dev/zero Null byte source
96 6 = /dev/core OBSOLETE - replaced by /proc/kcore
97 7 = /dev/full Returns ENOSPC on write
98 8 = /dev/random Nondeterministic random number gen.
99 9 = /dev/urandom Faster, less secure random number gen.
100 10 = /dev/aio Asynchronous I/O notification interface
101 11 = /dev/kmsg Writes to this come out as printk's, reads
102 export the buffered printk records.
103 12 = /dev/oldmem Used by crashdump kernels to access
104 the memory of the kernel that crashed.
107 0 = /dev/ram0 First RAM disk
108 1 = /dev/ram1 Second RAM disk
110 250 = /dev/initrd Initial RAM disk
112 Older kernels had /dev/ramdisk (1, 1) here.
113 /dev/initrd refers to a RAM disk which was preloaded
114 by the boot loader; newer kernels use /dev/ram0 for
117 2 char Pseudo-TTY masters
118 0 = /dev/ptyp0 First PTY master
119 1 = /dev/ptyp1 Second PTY master
121 255 = /dev/ptyef 256th PTY master
123 Pseudo-tty's are named as follows:
124 * Masters are "pty", slaves are "tty";
125 * the fourth letter is one of pqrstuvwxyzabcde indicating
126 the 1st through 16th series of 16 pseudo-ttys each, and
127 * the fifth letter is one of 0123456789abcdef indicating
128 the position within the series.
130 These are the old-style (BSD) PTY devices; Unix98
131 devices are on major 128 and above and use the PTY
132 master multiplex (/dev/ptmx) to acquire a PTY on
136 0 = /dev/fd0 Controller 0, drive 0, autodetect
137 1 = /dev/fd1 Controller 0, drive 1, autodetect
138 2 = /dev/fd2 Controller 0, drive 2, autodetect
139 3 = /dev/fd3 Controller 0, drive 3, autodetect
140 128 = /dev/fd4 Controller 1, drive 0, autodetect
141 129 = /dev/fd5 Controller 1, drive 1, autodetect
142 130 = /dev/fd6 Controller 1, drive 2, autodetect
143 131 = /dev/fd7 Controller 1, drive 3, autodetect
145 To specify format, add to the autodetect device number:
146 0 = /dev/fd? Autodetect format
147 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
148 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
149 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
150 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
151 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
152 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
153 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
154 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
155 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
156 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
157 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
159 12 = /dev/fd?u360 3.5" 360K Double Density(2)
160 16 = /dev/fd?u720 3.5" 720K Double Density(1)
161 120 = /dev/fd?u800 3.5" 800K Double Density(2)
162 52 = /dev/fd?u820 3.5" 820K Double Density
163 68 = /dev/fd?u830 3.5" 830K Double Density
164 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
165 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
166 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
167 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
168 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
169 60 = /dev/fd?u1722 3.5" 1722K High Density
170 76 = /dev/fd?u1743 3.5" 1743K High Density
171 96 = /dev/fd?u1760 3.5" 1760K High Density
172 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
173 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
174 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
175 104 = /dev/fd?u3200 3.5" 3200K Extra Density
176 108 = /dev/fd?u3520 3.5" 3520K Extra Density
177 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
179 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
181 (1) Autodetectable format
182 (2) Autodetectable format in a Double Density (720K) drive only
183 (3) Autodetectable format in a High Density (1440K) drive only
185 NOTE: The letter in the device name (d, q, h or u)
186 signifies the type of drive: 5.25" Double Density (d),
187 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
188 (any model, u). The use of the capital letters D, H
189 and E for the 3.5" models have been deprecated, since
190 the drive type is insignificant for these devices.
192 3 char Pseudo-TTY slaves
193 0 = /dev/ttyp0 First PTY slave
194 1 = /dev/ttyp1 Second PTY slave
196 255 = /dev/ttyef 256th PTY slave
198 These are the old-style (BSD) PTY devices; Unix98
199 devices are on major 136 and above.
201 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
202 0 = /dev/hda Master: whole disk (or CD-ROM)
203 64 = /dev/hdb Slave: whole disk (or CD-ROM)
205 For partitions, add to the whole disk device number:
206 0 = /dev/hd? Whole disk
207 1 = /dev/hd?1 First partition
208 2 = /dev/hd?2 Second partition
210 63 = /dev/hd?63 63rd partition
212 For Linux/i386, partitions 1-4 are the primary
213 partitions, and 5 and above are logical partitions.
214 Other versions of Linux use partitioning schemes
215 appropriate to their respective architectures.
218 0 = /dev/tty0 Current virtual console
220 1 = /dev/tty1 First virtual console
222 63 = /dev/tty63 63rd virtual console
223 64 = /dev/ttyS0 First UART serial port
225 255 = /dev/ttyS191 192nd UART serial port
227 UART serial ports refer to 8250/16450/16550 series devices.
229 Older versions of the Linux kernel used this major
230 number for BSD PTY devices. As of Linux 2.1.115, this
231 is no longer supported. Use major numbers 2 and 3.
233 4 block Aliases for dynamically allocated major devices to be used
234 when its not possible to create the real device nodes
235 because the root filesystem is mounted read-only.
239 5 char Alternate TTY devices
240 0 = /dev/tty Current TTY device
241 1 = /dev/console System console
242 2 = /dev/ptmx PTY master multiplex
243 3 = /dev/ttyprintk User messages via printk TTY device
244 64 = /dev/cua0 Callout device for ttyS0
246 255 = /dev/cua191 Callout device for ttyS191
248 (5,1) is /dev/console starting with Linux 2.1.71. See
249 the section on terminal devices for more information
252 6 char Parallel printer devices
253 0 = /dev/lp0 Parallel printer on parport0
254 1 = /dev/lp1 Parallel printer on parport1
257 Current Linux kernels no longer have a fixed mapping
258 between parallel ports and I/O addresses. Instead,
259 they are redirected through the parport multiplex layer.
261 7 char Virtual console capture devices
262 0 = /dev/vcs Current vc text contents
263 1 = /dev/vcs1 tty1 text contents
265 63 = /dev/vcs63 tty63 text contents
266 128 = /dev/vcsa Current vc text/attribute contents
267 129 = /dev/vcsa1 tty1 text/attribute contents
269 191 = /dev/vcsa63 tty63 text/attribute contents
271 NOTE: These devices permit both read and write access.
273 7 block Loopback devices
274 0 = /dev/loop0 First loop device
275 1 = /dev/loop1 Second loop device
278 The loop devices are used to mount filesystems not
279 associated with block devices. The binding to the
280 loop devices is handled by mount(8) or losetup(8).
282 8 block SCSI disk devices (0-15)
283 0 = /dev/sda First SCSI disk whole disk
284 16 = /dev/sdb Second SCSI disk whole disk
285 32 = /dev/sdc Third SCSI disk whole disk
287 240 = /dev/sdp Sixteenth SCSI disk whole disk
289 Partitions are handled in the same way as for IDE
290 disks (see major number 3) except that the limit on
293 9 char SCSI tape devices
294 0 = /dev/st0 First SCSI tape, mode 0
295 1 = /dev/st1 Second SCSI tape, mode 0
297 32 = /dev/st0l First SCSI tape, mode 1
298 33 = /dev/st1l Second SCSI tape, mode 1
300 64 = /dev/st0m First SCSI tape, mode 2
301 65 = /dev/st1m Second SCSI tape, mode 2
303 96 = /dev/st0a First SCSI tape, mode 3
304 97 = /dev/st1a Second SCSI tape, mode 3
306 128 = /dev/nst0 First SCSI tape, mode 0, no rewind
307 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
309 160 = /dev/nst0l First SCSI tape, mode 1, no rewind
310 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
312 192 = /dev/nst0m First SCSI tape, mode 2, no rewind
313 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
315 224 = /dev/nst0a First SCSI tape, mode 3, no rewind
316 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
319 "No rewind" refers to the omission of the default
320 automatic rewind on device close. The MTREW or MTOFFL
321 ioctl()'s can be used to rewind the tape regardless of
322 the device used to access it.
324 9 block Metadisk (RAID) devices
325 0 = /dev/md0 First metadisk group
326 1 = /dev/md1 Second metadisk group
329 The metadisk driver is used to span a
330 filesystem across multiple physical disks.
332 10 char Non-serial mice, misc features
333 0 = /dev/logibm Logitech bus mouse
334 1 = /dev/psaux PS/2-style mouse port
335 2 = /dev/inportbm Microsoft Inport bus mouse
336 3 = /dev/atibm ATI XL bus mouse
338 4 = /dev/amigamouse Amiga mouse (68k/Amiga)
339 5 = /dev/atarimouse Atari mouse
340 6 = /dev/sunmouse Sun mouse
341 7 = /dev/amigamouse1 Second Amiga mouse
342 8 = /dev/smouse Simple serial mouse driver
343 9 = /dev/pc110pad IBM PC-110 digitizer pad
344 10 = /dev/adbmouse Apple Desktop Bus mouse
345 11 = /dev/vrtpanel Vr41xx embedded touch panel
346 13 = /dev/vpcmouse Connectix Virtual PC Mouse
347 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
348 15 = /dev/touchscreen/mk712 MK712 touchscreen
349 128 = /dev/beep Fancy beep device
351 130 = /dev/watchdog Watchdog timer port
352 131 = /dev/temperature Machine internal temperature
353 132 = /dev/hwtrap Hardware fault trap
354 133 = /dev/exttrp External device trap
355 134 = /dev/apm_bios Advanced Power Management BIOS
356 135 = /dev/rtc Real Time Clock
357 139 = /dev/openprom SPARC OpenBoot PROM
358 140 = /dev/relay8 Berkshire Products Octal relay card
359 141 = /dev/relay16 Berkshire Products ISO-16 relay card
361 143 = /dev/pciconf PCI configuration space
362 144 = /dev/nvram Non-volatile configuration RAM
363 145 = /dev/hfmodem Soundcard shortwave modem control
364 146 = /dev/graphics Linux/SGI graphics device
365 147 = /dev/opengl Linux/SGI OpenGL pipe
366 148 = /dev/gfx Linux/SGI graphics effects device
367 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
368 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
369 151 = /dev/led Front panel LEDs
370 152 = /dev/kpoll Kernel Poll Driver
371 153 = /dev/mergemem Memory merge device
372 154 = /dev/pmu Macintosh PowerBook power manager
373 155 = /dev/isictl MultiTech ISICom serial control
374 156 = /dev/lcd Front panel LCD display
375 157 = /dev/ac Applicom Intl Profibus card
376 158 = /dev/nwbutton Netwinder external button
377 159 = /dev/nwdebug Netwinder debug interface
378 160 = /dev/nwflash Netwinder flash memory
379 161 = /dev/userdma User-space DMA access
380 162 = /dev/smbus System Management Bus
381 163 = /dev/lik Logitech Internet Keyboard
382 164 = /dev/ipmo Intel Intelligent Platform Management
383 165 = /dev/vmmon VMware virtual machine monitor
384 166 = /dev/i2o/ctl I2O configuration manager
385 167 = /dev/specialix_sxctl Specialix serial control
386 168 = /dev/tcldrv Technology Concepts serial control
387 169 = /dev/specialix_rioctl Specialix RIO serial control
388 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices
389 171 = /dev/srripc QNX4 API IPC manager
390 172 = /dev/usemaclone Semaphore clone device
391 173 = /dev/ipmikcs Intelligent Platform Management
392 174 = /dev/uctrl SPARCbook 3 microcontroller
393 175 = /dev/agpgart AGP Graphics Address Remapping Table
394 176 = /dev/gtrsc Gorgy Timing radio clock
395 177 = /dev/cbm Serial CBM bus
396 178 = /dev/jsflash JavaStation OS flash SIMM
397 179 = /dev/xsvc High-speed shared-mem/semaphore service
398 180 = /dev/vrbuttons Vr41xx button input device
399 181 = /dev/toshiba Toshiba laptop SMM support
400 182 = /dev/perfctr Performance-monitoring counters
401 183 = /dev/hwrng Generic random number generator
402 184 = /dev/cpu/microcode CPU microcode update interface
403 186 = /dev/atomicps Atomic shapshot of process state data
404 187 = /dev/irnet IrNET device
405 188 = /dev/smbusbios SMBus BIOS
406 189 = /dev/ussp_ctl User space serial port control
407 190 = /dev/crash Mission Critical Linux crash dump facility
408 191 = /dev/pcl181 <information missing>
409 192 = /dev/nas_xbus NAS xbus LCD/buttons access
410 193 = /dev/d7s SPARC 7-segment display
411 194 = /dev/zkshim Zero-Knowledge network shim control
412 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
413 198 = /dev/sexec Signed executable interface
414 199 = /dev/scanners/cuecat :CueCat barcode scanner
415 200 = /dev/net/tun TAP/TUN network device
416 201 = /dev/button/gulpb Transmeta GULP-B buttons
417 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control
418 204 = /dev/video/em8300 EM8300 DVD decoder control
419 205 = /dev/video/em8300_mv EM8300 DVD decoder video
420 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
421 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
422 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
423 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
424 210 = /dev/impi/bt IMPI coprocessor block transfer
425 211 = /dev/impi/smic IMPI coprocessor stream interface
426 212 = /dev/watchdogs/0 First watchdog device
427 213 = /dev/watchdogs/1 Second watchdog device
428 214 = /dev/watchdogs/2 Third watchdog device
429 215 = /dev/watchdogs/3 Fourth watchdog device
430 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel
431 217 = /dev/ni/natmotn National Instruments Motion
432 218 = /dev/kchuid Inter-process chuid control
433 219 = /dev/modems/mwave MWave modem firmware upload
434 220 = /dev/mptctl Message passing technology (MPT) control
435 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver
436 222 = /dev/mvista/hasi Montavista PICMG high availability
437 223 = /dev/input/uinput User level driver support for input
438 224 = /dev/tpm TCPA TPM driver
439 225 = /dev/pps Pulse Per Second driver
440 226 = /dev/systrace Systrace device
441 227 = /dev/mcelog X86_64 Machine Check Exception driver
442 228 = /dev/hpet HPET driver
443 229 = /dev/fuse Fuse (virtual filesystem in user-space)
444 230 = /dev/midishare MidiShare driver
445 231 = /dev/snapshot System memory snapshot device
446 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions)
447 233 = /dev/kmview View-OS A process with a view
448 234 = /dev/btrfs-control Btrfs control device
449 235 = /dev/autofs Autofs control device
450 236 = /dev/mapper/control Device-Mapper control device
451 237 = /dev/loop-control Loopback control device
452 238 = /dev/vhost-net Host kernel accelerator for virtio net
454 240-254 Reserved for local use
455 255 Reserved for MISC_DYNAMIC_MINOR
457 11 char Raw keyboard device (Linux/SPARC only)
458 0 = /dev/kbd Raw keyboard device
460 11 char Serial Mux device (Linux/PA-RISC only)
461 0 = /dev/ttyB0 First mux port
462 1 = /dev/ttyB1 Second mux port
465 11 block SCSI CD-ROM devices
466 0 = /dev/scd0 First SCSI CD-ROM
467 1 = /dev/scd1 Second SCSI CD-ROM
470 The prefix /dev/sr (instead of /dev/scd) has been deprecated.
473 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
474 3 = /dev/tpqic11 QIC-11, rewind-on-close
475 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
476 5 = /dev/tpqic24 QIC-24, rewind-on-close
477 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
478 7 = /dev/tpqic120 QIC-120, rewind-on-close
479 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
480 9 = /dev/tpqic150 QIC-150, rewind-on-close
482 The device names specified are proposed -- if there
483 are "standard" names for these devices, please let me know.
488 0 = /dev/input/js0 First joystick
489 1 = /dev/input/js1 Second joystick
491 32 = /dev/input/mouse0 First mouse
492 33 = /dev/input/mouse1 Second mouse
494 63 = /dev/input/mice Unified mouse
495 64 = /dev/input/event0 First event queue
496 65 = /dev/input/event1 Second event queue
499 Each device type has 5 bits (32 minors).
501 13 block 8-bit MFM/RLL/IDE controller
502 0 = /dev/xda First XT disk whole disk
503 64 = /dev/xdb Second XT disk whole disk
505 Partitions are handled in the same way as IDE disks
506 (see major number 3).
508 14 char Open Sound System (OSS)
509 0 = /dev/mixer Mixer control
510 1 = /dev/sequencer Audio sequencer
511 2 = /dev/midi00 First MIDI port
512 3 = /dev/dsp Digital audio
513 4 = /dev/audio Sun-compatible digital audio
515 7 = /dev/audioctl SPARC audio control device
516 8 = /dev/sequencer2 Sequencer -- alternate device
517 16 = /dev/mixer1 Second soundcard mixer control
518 17 = /dev/patmgr0 Sequencer patch manager
519 18 = /dev/midi01 Second MIDI port
520 19 = /dev/dsp1 Second soundcard digital audio
521 20 = /dev/audio1 Second soundcard Sun digital audio
522 33 = /dev/patmgr1 Sequencer patch manager
523 34 = /dev/midi02 Third MIDI port
524 50 = /dev/midi03 Fourth MIDI port
529 0 = /dev/js0 First analog joystick
530 1 = /dev/js1 Second analog joystick
532 128 = /dev/djs0 First digital joystick
533 129 = /dev/djs1 Second digital joystick
535 15 block Sony CDU-31A/CDU-33A CD-ROM
536 0 = /dev/sonycd Sony CDU-31a CD-ROM
538 16 char Non-SCSI scanners
539 0 = /dev/gs4500 Genius 4500 handheld scanner
541 16 block GoldStar CD-ROM
542 0 = /dev/gscd GoldStar CD-ROM
544 17 char OBSOLETE (was Chase serial card)
545 0 = /dev/ttyH0 First Chase port
546 1 = /dev/ttyH1 Second Chase port
548 17 block Optics Storage CD-ROM
549 0 = /dev/optcd Optics Storage CD-ROM
551 18 char OBSOLETE (was Chase serial card - alternate devices)
552 0 = /dev/cuh0 Callout device for ttyH0
553 1 = /dev/cuh1 Callout device for ttyH1
555 18 block Sanyo CD-ROM
556 0 = /dev/sjcd Sanyo CD-ROM
558 19 char Cyclades serial card
559 0 = /dev/ttyC0 First Cyclades port
561 31 = /dev/ttyC31 32nd Cyclades port
563 19 block "Double" compressed disk
564 0 = /dev/double0 First compressed disk
566 7 = /dev/double7 Eighth compressed disk
567 128 = /dev/cdouble0 Mirror of first compressed disk
569 135 = /dev/cdouble7 Mirror of eighth compressed disk
571 See the Double documentation for the meaning of the
574 20 char Cyclades serial card - alternate devices
575 0 = /dev/cub0 Callout device for ttyC0
577 31 = /dev/cub31 Callout device for ttyC31
579 20 block Hitachi CD-ROM (under development)
580 0 = /dev/hitcd Hitachi CD-ROM
582 21 char Generic SCSI access
583 0 = /dev/sg0 First generic SCSI device
584 1 = /dev/sg1 Second generic SCSI device
587 Most distributions name these /dev/sga, /dev/sgb...;
588 this sets an unnecessary limit of 26 SCSI devices in
589 the system and is counter to standard Linux
590 device-naming practice.
592 21 block Acorn MFM hard drive interface
593 0 = /dev/mfma First MFM drive whole disk
594 64 = /dev/mfmb Second MFM drive whole disk
596 This device is used on the ARM-based Acorn RiscPC.
597 Partitions are handled the same way as for IDE disks
598 (see major number 3).
600 22 char Digiboard serial card
601 0 = /dev/ttyD0 First Digiboard port
602 1 = /dev/ttyD1 Second Digiboard port
604 22 block Second IDE hard disk/CD-ROM interface
605 0 = /dev/hdc Master: whole disk (or CD-ROM)
606 64 = /dev/hdd Slave: whole disk (or CD-ROM)
608 Partitions are handled the same way as for the first
609 interface (see major number 3).
611 23 char Digiboard serial card - alternate devices
612 0 = /dev/cud0 Callout device for ttyD0
613 1 = /dev/cud1 Callout device for ttyD1
615 23 block Mitsumi proprietary CD-ROM
616 0 = /dev/mcd Mitsumi CD-ROM
618 24 char Stallion serial card
619 0 = /dev/ttyE0 Stallion port 0 card 0
620 1 = /dev/ttyE1 Stallion port 1 card 0
622 64 = /dev/ttyE64 Stallion port 0 card 1
623 65 = /dev/ttyE65 Stallion port 1 card 1
625 128 = /dev/ttyE128 Stallion port 0 card 2
626 129 = /dev/ttyE129 Stallion port 1 card 2
628 192 = /dev/ttyE192 Stallion port 0 card 3
629 193 = /dev/ttyE193 Stallion port 1 card 3
631 24 block Sony CDU-535 CD-ROM
632 0 = /dev/cdu535 Sony CDU-535 CD-ROM
634 25 char Stallion serial card - alternate devices
635 0 = /dev/cue0 Callout device for ttyE0
636 1 = /dev/cue1 Callout device for ttyE1
638 64 = /dev/cue64 Callout device for ttyE64
639 65 = /dev/cue65 Callout device for ttyE65
641 128 = /dev/cue128 Callout device for ttyE128
642 129 = /dev/cue129 Callout device for ttyE129
644 192 = /dev/cue192 Callout device for ttyE192
645 193 = /dev/cue193 Callout device for ttyE193
647 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
648 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
649 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
650 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
651 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
655 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
656 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
657 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
658 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
659 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
662 0 = /dev/qft0 Unit 0, rewind-on-close
663 1 = /dev/qft1 Unit 1, rewind-on-close
664 2 = /dev/qft2 Unit 2, rewind-on-close
665 3 = /dev/qft3 Unit 3, rewind-on-close
666 4 = /dev/nqft0 Unit 0, no rewind-on-close
667 5 = /dev/nqft1 Unit 1, no rewind-on-close
668 6 = /dev/nqft2 Unit 2, no rewind-on-close
669 7 = /dev/nqft3 Unit 3, no rewind-on-close
670 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
671 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
672 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
673 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
674 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
675 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
676 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
677 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
678 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
679 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
680 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
681 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
682 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
683 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
684 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
685 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
687 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
688 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
689 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
690 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
691 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
693 28 char Stallion serial card - card programming
694 0 = /dev/staliomem0 First Stallion card I/O memory
695 1 = /dev/staliomem1 Second Stallion card I/O memory
696 2 = /dev/staliomem2 Third Stallion card I/O memory
697 3 = /dev/staliomem3 Fourth Stallion card I/O memory
699 28 char Atari SLM ACSI laser printer (68k/Atari)
700 0 = /dev/slm0 First SLM laser printer
701 1 = /dev/slm1 Second SLM laser printer
703 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
704 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
705 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
706 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
707 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
709 28 block ACSI disk (68k/Atari)
710 0 = /dev/ada First ACSI disk whole disk
711 16 = /dev/adb Second ACSI disk whole disk
712 32 = /dev/adc Third ACSI disk whole disk
714 240 = /dev/adp 16th ACSI disk whole disk
716 Partitions are handled in the same way as for IDE
717 disks (see major number 3) except that the limit on
718 partitions is 15, like SCSI.
720 29 char Universal frame buffer
721 0 = /dev/fb0 First frame buffer
722 1 = /dev/fb1 Second frame buffer
724 31 = /dev/fb31 32nd frame buffer
726 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
727 0 = /dev/aztcd Aztech CD-ROM
729 30 char iBCS-2 compatibility devices
730 0 = /dev/socksys Socket access
731 1 = /dev/spx SVR3 local X interface
732 32 = /dev/inet/ip Network access
743 Additionally, iBCS-2 requires the following links:
745 /dev/ip -> /dev/inet/ip
746 /dev/icmp -> /dev/inet/icmp
747 /dev/ggp -> /dev/inet/ggp
748 /dev/ipip -> /dev/inet/ipip
749 /dev/tcp -> /dev/inet/tcp
750 /dev/egp -> /dev/inet/egp
751 /dev/pup -> /dev/inet/pup
752 /dev/udp -> /dev/inet/udp
753 /dev/idp -> /dev/inet/idp
754 /dev/rawip -> /dev/inet/rawip
755 /dev/inet/arp -> /dev/inet/udp
756 /dev/inet/rip -> /dev/inet/udp
757 /dev/nfsd -> /dev/socksys
758 /dev/X0R -> /dev/null (? apparently not required ?)
760 30 block Philips LMS CM-205 CD-ROM
761 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
763 /dev/lmscd is an older name for this device. This
764 driver does not work with the CM-205MS CD-ROM.
767 0 = /dev/mpu401data MPU-401 data port
768 1 = /dev/mpu401stat MPU-401 status port
770 31 block ROM/flash memory card
771 0 = /dev/rom0 First ROM card (rw)
773 7 = /dev/rom7 Eighth ROM card (rw)
774 8 = /dev/rrom0 First ROM card (ro)
776 15 = /dev/rrom7 Eighth ROM card (ro)
777 16 = /dev/flash0 First flash memory card (rw)
779 23 = /dev/flash7 Eighth flash memory card (rw)
780 24 = /dev/rflash0 First flash memory card (ro)
782 31 = /dev/rflash7 Eighth flash memory card (ro)
784 The read-write (rw) devices support back-caching
785 written data in RAM, as well as writing to flash RAM
786 devices. The read-only devices (ro) support reading
789 32 char Specialix serial card
790 0 = /dev/ttyX0 First Specialix port
791 1 = /dev/ttyX1 Second Specialix port
793 32 block Philips LMS CM-206 CD-ROM
794 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
796 33 char Specialix serial card - alternate devices
797 0 = /dev/cux0 Callout device for ttyX0
798 1 = /dev/cux1 Callout device for ttyX1
800 33 block Third IDE hard disk/CD-ROM interface
801 0 = /dev/hde Master: whole disk (or CD-ROM)
802 64 = /dev/hdf Slave: whole disk (or CD-ROM)
804 Partitions are handled the same way as for the first
805 interface (see major number 3).
807 34 char Z8530 HDLC driver
808 0 = /dev/scc0 First Z8530, first port
809 1 = /dev/scc1 First Z8530, second port
810 2 = /dev/scc2 Second Z8530, first port
811 3 = /dev/scc3 Second Z8530, second port
814 In a previous version these devices were named
815 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
818 34 block Fourth IDE hard disk/CD-ROM interface
819 0 = /dev/hdg Master: whole disk (or CD-ROM)
820 64 = /dev/hdh Slave: whole disk (or CD-ROM)
822 Partitions are handled the same way as for the first
823 interface (see major number 3).
825 35 char tclmidi MIDI driver
826 0 = /dev/midi0 First MIDI port, kernel timed
827 1 = /dev/midi1 Second MIDI port, kernel timed
828 2 = /dev/midi2 Third MIDI port, kernel timed
829 3 = /dev/midi3 Fourth MIDI port, kernel timed
830 64 = /dev/rmidi0 First MIDI port, untimed
831 65 = /dev/rmidi1 Second MIDI port, untimed
832 66 = /dev/rmidi2 Third MIDI port, untimed
833 67 = /dev/rmidi3 Fourth MIDI port, untimed
834 128 = /dev/smpte0 First MIDI port, SMPTE timed
835 129 = /dev/smpte1 Second MIDI port, SMPTE timed
836 130 = /dev/smpte2 Third MIDI port, SMPTE timed
837 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
839 35 block Slow memory ramdisk
840 0 = /dev/slram Slow memory ramdisk
842 36 char Netlink support
843 0 = /dev/route Routing, device updates, kernel to user
844 1 = /dev/skip enSKIP security cache control
845 3 = /dev/fwmonitor Firewall packet copies
846 16 = /dev/tap0 First Ethertap device
848 31 = /dev/tap15 16th Ethertap device
850 36 block MCA ESDI hard disk
851 0 = /dev/eda First ESDI disk whole disk
852 64 = /dev/edb Second ESDI disk whole disk
855 Partitions are handled in the same way as IDE disks
856 (see major number 3).
859 0 = /dev/ht0 First IDE tape
860 1 = /dev/ht1 Second IDE tape
862 128 = /dev/nht0 First IDE tape, no rewind-on-close
863 129 = /dev/nht1 Second IDE tape, no rewind-on-close
866 Currently, only one IDE tape drive is supported.
868 37 block Zorro II ramdisk
869 0 = /dev/z2ram Zorro II ramdisk
871 38 char Myricom PCI Myrinet board
872 0 = /dev/mlanai0 First Myrinet board
873 1 = /dev/mlanai1 Second Myrinet board
876 This device is used for status query, board control
877 and "user level packet I/O." This board is also
878 accessible as a standard networking "eth" device.
880 38 block OBSOLETE (was Linux/AP+)
882 39 char ML-16P experimental I/O board
883 0 = /dev/ml16pa-a0 First card, first analog channel
884 1 = /dev/ml16pa-a1 First card, second analog channel
886 15 = /dev/ml16pa-a15 First card, 16th analog channel
887 16 = /dev/ml16pa-d First card, digital lines
888 17 = /dev/ml16pa-c0 First card, first counter/timer
889 18 = /dev/ml16pa-c1 First card, second counter/timer
890 19 = /dev/ml16pa-c2 First card, third counter/timer
891 32 = /dev/ml16pb-a0 Second card, first analog channel
892 33 = /dev/ml16pb-a1 Second card, second analog channel
894 47 = /dev/ml16pb-a15 Second card, 16th analog channel
895 48 = /dev/ml16pb-d Second card, digital lines
896 49 = /dev/ml16pb-c0 Second card, first counter/timer
897 50 = /dev/ml16pb-c1 Second card, second counter/timer
898 51 = /dev/ml16pb-c2 Second card, third counter/timer
906 41 char Yet Another Micro Monitor
907 0 = /dev/yamm Yet Another Micro Monitor
911 42 char Demo/sample use
913 42 block Demo/sample use
915 This number is intended for use in sample code, as
916 well as a general "example" device number. It
917 should never be used for a device driver that is being
918 distributed; either obtain an official number or use
919 the local/experimental range. The sudden addition or
920 removal of a driver with this number should not cause
921 ill effects to the system (bugs excepted.)
923 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
924 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
926 43 char isdn4linux virtual modem
927 0 = /dev/ttyI0 First virtual modem
929 63 = /dev/ttyI63 64th virtual modem
931 43 block Network block devices
932 0 = /dev/nb0 First network block device
933 1 = /dev/nb1 Second network block device
936 Network Block Device is somehow similar to loopback
937 devices: If you read from it, it sends packet across
938 network asking server for data. If you write to it, it
939 sends packet telling server to write. It could be used
940 to mounting filesystems over the net, swapping over
941 the net, implementing block device in userland etc.
943 44 char isdn4linux virtual modem - alternate devices
944 0 = /dev/cui0 Callout device for ttyI0
946 63 = /dev/cui63 Callout device for ttyI63
948 44 block Flash Translation Layer (FTL) filesystems
949 0 = /dev/ftla FTL on first Memory Technology Device
950 16 = /dev/ftlb FTL on second Memory Technology Device
951 32 = /dev/ftlc FTL on third Memory Technology Device
953 240 = /dev/ftlp FTL on 16th Memory Technology Device
955 Partitions are handled in the same way as for IDE
956 disks (see major number 3) except that the partition
957 limit is 15 rather than 63 per disk (same as SCSI.)
959 45 char isdn4linux ISDN BRI driver
960 0 = /dev/isdn0 First virtual B channel raw data
962 63 = /dev/isdn63 64th virtual B channel raw data
963 64 = /dev/isdnctrl0 First channel control/debug
965 127 = /dev/isdnctrl63 64th channel control/debug
967 128 = /dev/ippp0 First SyncPPP device
969 191 = /dev/ippp63 64th SyncPPP device
971 255 = /dev/isdninfo ISDN monitor interface
973 45 block Parallel port IDE disk devices
974 0 = /dev/pda First parallel port IDE disk
975 16 = /dev/pdb Second parallel port IDE disk
976 32 = /dev/pdc Third parallel port IDE disk
977 48 = /dev/pdd Fourth parallel port IDE disk
979 Partitions are handled in the same way as for IDE
980 disks (see major number 3) except that the partition
981 limit is 15 rather than 63 per disk.
983 46 char Comtrol Rocketport serial card
984 0 = /dev/ttyR0 First Rocketport port
985 1 = /dev/ttyR1 Second Rocketport port
987 46 block Parallel port ATAPI CD-ROM devices
988 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
989 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
990 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
991 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
993 47 char Comtrol Rocketport serial card - alternate devices
994 0 = /dev/cur0 Callout device for ttyR0
995 1 = /dev/cur1 Callout device for ttyR1
997 47 block Parallel port ATAPI disk devices
998 0 = /dev/pf0 First parallel port ATAPI disk
999 1 = /dev/pf1 Second parallel port ATAPI disk
1000 2 = /dev/pf2 Third parallel port ATAPI disk
1001 3 = /dev/pf3 Fourth parallel port ATAPI disk
1003 This driver is intended for floppy disks and similar
1004 devices and hence does not support partitioning.
1006 48 char SDL RISCom serial card
1007 0 = /dev/ttyL0 First RISCom port
1008 1 = /dev/ttyL1 Second RISCom port
1010 48 block Mylex DAC960 PCI RAID controller; first controller
1011 0 = /dev/rd/c0d0 First disk, whole disk
1012 8 = /dev/rd/c0d1 Second disk, whole disk
1014 248 = /dev/rd/c0d31 32nd disk, whole disk
1017 0 = /dev/rd/c?d? Whole disk
1018 1 = /dev/rd/c?d?p1 First partition
1020 7 = /dev/rd/c?d?p7 Seventh partition
1022 49 char SDL RISCom serial card - alternate devices
1023 0 = /dev/cul0 Callout device for ttyL0
1024 1 = /dev/cul1 Callout device for ttyL1
1026 49 block Mylex DAC960 PCI RAID controller; second controller
1027 0 = /dev/rd/c1d0 First disk, whole disk
1028 8 = /dev/rd/c1d1 Second disk, whole disk
1030 248 = /dev/rd/c1d31 32nd disk, whole disk
1032 Partitions are handled as for major 48.
1034 50 char Reserved for GLINT
1036 50 block Mylex DAC960 PCI RAID controller; third controller
1037 0 = /dev/rd/c2d0 First disk, whole disk
1038 8 = /dev/rd/c2d1 Second disk, whole disk
1040 248 = /dev/rd/c2d31 32nd disk, whole disk
1042 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
1043 0 = /dev/bc0 First Baycom radio modem
1044 1 = /dev/bc1 Second Baycom radio modem
1046 51 block Mylex DAC960 PCI RAID controller; fourth controller
1047 0 = /dev/rd/c3d0 First disk, whole disk
1048 8 = /dev/rd/c3d1 Second disk, whole disk
1050 248 = /dev/rd/c3d31 32nd disk, whole disk
1052 Partitions are handled as for major 48.
1054 52 char Spellcaster DataComm/BRI ISDN card
1055 0 = /dev/dcbri0 First DataComm card
1056 1 = /dev/dcbri1 Second DataComm card
1057 2 = /dev/dcbri2 Third DataComm card
1058 3 = /dev/dcbri3 Fourth DataComm card
1060 52 block Mylex DAC960 PCI RAID controller; fifth controller
1061 0 = /dev/rd/c4d0 First disk, whole disk
1062 8 = /dev/rd/c4d1 Second disk, whole disk
1064 248 = /dev/rd/c4d31 32nd disk, whole disk
1066 Partitions are handled as for major 48.
1068 53 char BDM interface for remote debugging MC683xx microcontrollers
1069 0 = /dev/pd_bdm0 PD BDM interface on lp0
1070 1 = /dev/pd_bdm1 PD BDM interface on lp1
1071 2 = /dev/pd_bdm2 PD BDM interface on lp2
1072 4 = /dev/icd_bdm0 ICD BDM interface on lp0
1073 5 = /dev/icd_bdm1 ICD BDM interface on lp1
1074 6 = /dev/icd_bdm2 ICD BDM interface on lp2
1076 This device is used for the interfacing to the MC683xx
1077 microcontrollers via Background Debug Mode by use of a
1078 Parallel Port interface. PD is the Motorola Public
1079 Domain Interface and ICD is the commercial interface
1082 53 block Mylex DAC960 PCI RAID controller; sixth controller
1083 0 = /dev/rd/c5d0 First disk, whole disk
1084 8 = /dev/rd/c5d1 Second disk, whole disk
1086 248 = /dev/rd/c5d31 32nd disk, whole disk
1088 Partitions are handled as for major 48.
1090 54 char Electrocardiognosis Holter serial card
1091 0 = /dev/holter0 First Holter port
1092 1 = /dev/holter1 Second Holter port
1093 2 = /dev/holter2 Third Holter port
1095 A custom serial card used by Electrocardiognosis SRL
1096 <mseritan@ottonel.pub.ro> to transfer data from Holter
1097 24-hour heart monitoring equipment.
1099 54 block Mylex DAC960 PCI RAID controller; seventh controller
1100 0 = /dev/rd/c6d0 First disk, whole disk
1101 8 = /dev/rd/c6d1 Second disk, whole disk
1103 248 = /dev/rd/c6d31 32nd disk, whole disk
1105 Partitions are handled as for major 48.
1107 55 char DSP56001 digital signal processor
1108 0 = /dev/dsp56k First DSP56001
1110 55 block Mylex DAC960 PCI RAID controller; eighth controller
1111 0 = /dev/rd/c7d0 First disk, whole disk
1112 8 = /dev/rd/c7d1 Second disk, whole disk
1114 248 = /dev/rd/c7d31 32nd disk, whole disk
1116 Partitions are handled as for major 48.
1118 56 char Apple Desktop Bus
1119 0 = /dev/adb ADB bus control
1121 Additional devices will be added to this number, all
1122 starting with /dev/adb.
1124 56 block Fifth IDE hard disk/CD-ROM interface
1125 0 = /dev/hdi Master: whole disk (or CD-ROM)
1126 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1128 Partitions are handled the same way as for the first
1129 interface (see major number 3).
1131 57 char Hayes ESP serial card
1132 0 = /dev/ttyP0 First ESP port
1133 1 = /dev/ttyP1 Second ESP port
1136 57 block Sixth IDE hard disk/CD-ROM interface
1137 0 = /dev/hdk Master: whole disk (or CD-ROM)
1138 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1140 Partitions are handled the same way as for the first
1141 interface (see major number 3).
1143 58 char Hayes ESP serial card - alternate devices
1144 0 = /dev/cup0 Callout device for ttyP0
1145 1 = /dev/cup1 Callout device for ttyP1
1148 58 block Reserved for logical volume manager
1150 59 char sf firewall package
1151 0 = /dev/firewall Communication with sf kernel module
1153 59 block Generic PDA filesystem device
1154 0 = /dev/pda0 First PDA device
1155 1 = /dev/pda1 Second PDA device
1158 The pda devices are used to mount filesystems on
1159 remote pda's (basically slow handheld machines with
1160 proprietary OS's and limited memory and storage
1161 running small fs translation drivers) through serial /
1162 IRDA / parallel links.
1164 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1166 60-63 char LOCAL/EXPERIMENTAL USE
1168 60-63 block LOCAL/EXPERIMENTAL USE
1169 Allocated for local/experimental use. For devices not
1170 assigned official numbers, these ranges should be
1171 used in order to avoid conflicting with future assignments.
1173 64 char ENskip kernel encryption package
1174 0 = /dev/enskip Communication with ENskip kernel module
1176 64 block Scramdisk/DriveCrypt encrypted devices
1177 0 = /dev/scramdisk/master Master node for ioctls
1178 1 = /dev/scramdisk/1 First encrypted device
1179 2 = /dev/scramdisk/2 Second encrypted device
1181 255 = /dev/scramdisk/255 255th encrypted device
1183 The filename of the encrypted container and the passwords
1184 are sent via ioctls (using the sdmount tool) to the master
1185 node which then activates them via one of the
1186 /dev/scramdisk/x nodes for loop mounting (all handled
1187 through the sdmount tool).
1189 Requested by: andy@scramdisklinux.org
1191 65 char Sundance "plink" Transputer boards (obsolete, unused)
1192 0 = /dev/plink0 First plink device
1193 1 = /dev/plink1 Second plink device
1194 2 = /dev/plink2 Third plink device
1195 3 = /dev/plink3 Fourth plink device
1196 64 = /dev/rplink0 First plink device, raw
1197 65 = /dev/rplink1 Second plink device, raw
1198 66 = /dev/rplink2 Third plink device, raw
1199 67 = /dev/rplink3 Fourth plink device, raw
1200 128 = /dev/plink0d First plink device, debug
1201 129 = /dev/plink1d Second plink device, debug
1202 130 = /dev/plink2d Third plink device, debug
1203 131 = /dev/plink3d Fourth plink device, debug
1204 192 = /dev/rplink0d First plink device, raw, debug
1205 193 = /dev/rplink1d Second plink device, raw, debug
1206 194 = /dev/rplink2d Third plink device, raw, debug
1207 195 = /dev/rplink3d Fourth plink device, raw, debug
1209 This is a commercial driver; contact James Howes
1210 <jth@prosig.demon.co.uk> for information.
1212 65 block SCSI disk devices (16-31)
1213 0 = /dev/sdq 17th SCSI disk whole disk
1214 16 = /dev/sdr 18th SCSI disk whole disk
1215 32 = /dev/sds 19th SCSI disk whole disk
1217 240 = /dev/sdaf 32nd SCSI disk whole disk
1219 Partitions are handled in the same way as for IDE
1220 disks (see major number 3) except that the limit on
1223 66 char YARC PowerPC PCI coprocessor card
1224 0 = /dev/yppcpci0 First YARC card
1225 1 = /dev/yppcpci1 Second YARC card
1228 66 block SCSI disk devices (32-47)
1229 0 = /dev/sdag 33th SCSI disk whole disk
1230 16 = /dev/sdah 34th SCSI disk whole disk
1231 32 = /dev/sdai 35th SCSI disk whole disk
1233 240 = /dev/sdav 48nd SCSI disk whole disk
1235 Partitions are handled in the same way as for IDE
1236 disks (see major number 3) except that the limit on
1239 67 char Coda network file system
1240 0 = /dev/cfs0 Coda cache manager
1242 See http://www.coda.cs.cmu.edu for information about Coda.
1244 67 block SCSI disk devices (48-63)
1245 0 = /dev/sdaw 49th SCSI disk whole disk
1246 16 = /dev/sdax 50th SCSI disk whole disk
1247 32 = /dev/sday 51st SCSI disk whole disk
1249 240 = /dev/sdbl 64th SCSI disk whole disk
1251 Partitions are handled in the same way as for IDE
1252 disks (see major number 3) except that the limit on
1255 68 char CAPI 2.0 interface
1256 0 = /dev/capi20 Control device
1257 1 = /dev/capi20.00 First CAPI 2.0 application
1258 2 = /dev/capi20.01 Second CAPI 2.0 application
1260 20 = /dev/capi20.19 19th CAPI 2.0 application
1262 ISDN CAPI 2.0 driver for use with CAPI 2.0
1263 applications; currently supports the AVM B1 card.
1265 68 block SCSI disk devices (64-79)
1266 0 = /dev/sdbm 65th SCSI disk whole disk
1267 16 = /dev/sdbn 66th SCSI disk whole disk
1268 32 = /dev/sdbo 67th SCSI disk whole disk
1270 240 = /dev/sdcb 80th SCSI disk whole disk
1272 Partitions are handled in the same way as for IDE
1273 disks (see major number 3) except that the limit on
1276 69 char MA16 numeric accelerator card
1277 0 = /dev/ma16 Board memory access
1279 69 block SCSI disk devices (80-95)
1280 0 = /dev/sdcc 81st SCSI disk whole disk
1281 16 = /dev/sdcd 82nd SCSI disk whole disk
1282 32 = /dev/sdce 83th SCSI disk whole disk
1284 240 = /dev/sdcr 96th SCSI disk whole disk
1286 Partitions are handled in the same way as for IDE
1287 disks (see major number 3) except that the limit on
1290 70 char SpellCaster Protocol Services Interface
1291 0 = /dev/apscfg Configuration interface
1292 1 = /dev/apsauth Authentication interface
1293 2 = /dev/apslog Logging interface
1294 3 = /dev/apsdbg Debugging interface
1295 64 = /dev/apsisdn ISDN command interface
1296 65 = /dev/apsasync Async command interface
1297 128 = /dev/apsmon Monitor interface
1299 70 block SCSI disk devices (96-111)
1300 0 = /dev/sdcs 97th SCSI disk whole disk
1301 16 = /dev/sdct 98th SCSI disk whole disk
1302 32 = /dev/sdcu 99th SCSI disk whole disk
1304 240 = /dev/sddh 112nd SCSI disk whole disk
1306 Partitions are handled in the same way as for IDE
1307 disks (see major number 3) except that the limit on
1310 71 char Computone IntelliPort II serial card
1311 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1312 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1314 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1315 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1316 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1318 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1319 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1320 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1322 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1323 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1324 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1326 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1328 71 block SCSI disk devices (112-127)
1329 0 = /dev/sddi 113th SCSI disk whole disk
1330 16 = /dev/sddj 114th SCSI disk whole disk
1331 32 = /dev/sddk 115th SCSI disk whole disk
1333 240 = /dev/sddx 128th SCSI disk whole disk
1335 Partitions are handled in the same way as for IDE
1336 disks (see major number 3) except that the limit on
1339 72 char Computone IntelliPort II serial card - alternate devices
1340 0 = /dev/cuf0 Callout device for ttyF0
1341 1 = /dev/cuf1 Callout device for ttyF1
1343 63 = /dev/cuf63 Callout device for ttyF63
1344 64 = /dev/cuf64 Callout device for ttyF64
1345 65 = /dev/cuf65 Callout device for ttyF65
1347 127 = /dev/cuf127 Callout device for ttyF127
1348 128 = /dev/cuf128 Callout device for ttyF128
1349 129 = /dev/cuf129 Callout device for ttyF129
1351 191 = /dev/cuf191 Callout device for ttyF191
1352 192 = /dev/cuf192 Callout device for ttyF192
1353 193 = /dev/cuf193 Callout device for ttyF193
1355 255 = /dev/cuf255 Callout device for ttyF255
1357 72 block Compaq Intelligent Drive Array, first controller
1358 0 = /dev/ida/c0d0 First logical drive whole disk
1359 16 = /dev/ida/c0d1 Second logical drive whole disk
1361 240 = /dev/ida/c0d15 16th logical drive whole disk
1363 Partitions are handled the same way as for Mylex
1364 DAC960 (see major number 48) except that the limit on
1367 73 char Computone IntelliPort II serial card - control devices
1368 0 = /dev/ip2ipl0 Loadware device for board 0
1369 1 = /dev/ip2stat0 Status device for board 0
1370 4 = /dev/ip2ipl1 Loadware device for board 1
1371 5 = /dev/ip2stat1 Status device for board 1
1372 8 = /dev/ip2ipl2 Loadware device for board 2
1373 9 = /dev/ip2stat2 Status device for board 2
1374 12 = /dev/ip2ipl3 Loadware device for board 3
1375 13 = /dev/ip2stat3 Status device for board 3
1377 73 block Compaq Intelligent Drive Array, second controller
1378 0 = /dev/ida/c1d0 First logical drive whole disk
1379 16 = /dev/ida/c1d1 Second logical drive whole disk
1381 240 = /dev/ida/c1d15 16th logical drive whole disk
1383 Partitions are handled the same way as for Mylex
1384 DAC960 (see major number 48) except that the limit on
1388 0 = /dev/SCI/0 SCI device 0
1389 1 = /dev/SCI/1 SCI device 1
1392 Currently for Dolphin Interconnect Solutions' PCI-SCI
1395 74 block Compaq Intelligent Drive Array, third controller
1396 0 = /dev/ida/c2d0 First logical drive whole disk
1397 16 = /dev/ida/c2d1 Second logical drive whole disk
1399 240 = /dev/ida/c2d15 16th logical drive whole disk
1401 Partitions are handled the same way as for Mylex
1402 DAC960 (see major number 48) except that the limit on
1405 75 char Specialix IO8+ serial card
1406 0 = /dev/ttyW0 First IO8+ port, first card
1407 1 = /dev/ttyW1 Second IO8+ port, first card
1409 8 = /dev/ttyW8 First IO8+ port, second card
1412 75 block Compaq Intelligent Drive Array, fourth controller
1413 0 = /dev/ida/c3d0 First logical drive whole disk
1414 16 = /dev/ida/c3d1 Second logical drive whole disk
1416 240 = /dev/ida/c3d15 16th logical drive whole disk
1418 Partitions are handled the same way as for Mylex
1419 DAC960 (see major number 48) except that the limit on
1422 76 char Specialix IO8+ serial card - alternate devices
1423 0 = /dev/cuw0 Callout device for ttyW0
1424 1 = /dev/cuw1 Callout device for ttyW1
1426 8 = /dev/cuw8 Callout device for ttyW8
1429 76 block Compaq Intelligent Drive Array, fifth controller
1430 0 = /dev/ida/c4d0 First logical drive whole disk
1431 16 = /dev/ida/c4d1 Second logical drive whole disk
1433 240 = /dev/ida/c4d15 16th logical drive whole disk
1435 Partitions are handled the same way as for Mylex
1436 DAC960 (see major number 48) except that the limit on
1440 77 char ComScire Quantum Noise Generator
1441 0 = /dev/qng ComScire Quantum Noise Generator
1443 77 block Compaq Intelligent Drive Array, sixth controller
1444 0 = /dev/ida/c5d0 First logical drive whole disk
1445 16 = /dev/ida/c5d1 Second logical drive whole disk
1447 240 = /dev/ida/c5d15 16th logical drive whole disk
1449 Partitions are handled the same way as for Mylex
1450 DAC960 (see major number 48) except that the limit on
1453 78 char PAM Software's multimodem boards
1454 0 = /dev/ttyM0 First PAM modem
1455 1 = /dev/ttyM1 Second PAM modem
1458 78 block Compaq Intelligent Drive Array, seventh controller
1459 0 = /dev/ida/c6d0 First logical drive whole disk
1460 16 = /dev/ida/c6d1 Second logical drive whole disk
1462 240 = /dev/ida/c6d15 16th logical drive whole disk
1464 Partitions are handled the same way as for Mylex
1465 DAC960 (see major number 48) except that the limit on
1468 79 char PAM Software's multimodem boards - alternate devices
1469 0 = /dev/cum0 Callout device for ttyM0
1470 1 = /dev/cum1 Callout device for ttyM1
1473 79 block Compaq Intelligent Drive Array, eighth controller
1474 0 = /dev/ida/c7d0 First logical drive whole disk
1475 16 = /dev/ida/c7d1 Second logical drive whole disk
1477 240 = /dev/ida/c715 16th logical drive whole disk
1479 Partitions are handled the same way as for Mylex
1480 DAC960 (see major number 48) except that the limit on
1483 80 char Photometrics AT200 CCD camera
1484 0 = /dev/at200 Photometrics AT200 CCD camera
1486 80 block I2O hard disk
1487 0 = /dev/i2o/hda First I2O hard disk, whole disk
1488 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1490 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1492 Partitions are handled in the same way as for IDE
1493 disks (see major number 3) except that the limit on
1497 0 = /dev/video0 Video capture/overlay device
1499 63 = /dev/video63 Video capture/overlay device
1500 64 = /dev/radio0 Radio device
1502 127 = /dev/radio63 Radio device
1503 224 = /dev/vbi0 Vertical blank interrupt
1505 255 = /dev/vbi31 Vertical blank interrupt
1507 81 block I2O hard disk
1508 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1509 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1511 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1513 Partitions are handled in the same way as for IDE
1514 disks (see major number 3) except that the limit on
1517 82 char WiNRADiO communications receiver card
1518 0 = /dev/winradio0 First WiNRADiO card
1519 1 = /dev/winradio1 Second WiNRADiO card
1522 The driver and documentation may be obtained from
1523 http://www.winradio.com/
1525 82 block I2O hard disk
1526 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1527 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1529 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1531 Partitions are handled in the same way as for IDE
1532 disks (see major number 3) except that the limit on
1535 83 char Matrox mga_vid video driver
1536 0 = /dev/mga_vid0 1st video card
1537 1 = /dev/mga_vid1 2nd video card
1538 2 = /dev/mga_vid2 3rd video card
1540 15 = /dev/mga_vid15 16th video card
1542 83 block I2O hard disk
1543 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1544 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1546 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk
1548 Partitions are handled in the same way as for IDE
1549 disks (see major number 3) except that the limit on
1552 84 char Ikon 1011[57] Versatec Greensheet Interface
1553 0 = /dev/ihcp0 First Greensheet port
1554 1 = /dev/ihcp1 Second Greensheet port
1556 84 block I2O hard disk
1557 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1558 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1560 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1562 Partitions are handled in the same way as for IDE
1563 disks (see major number 3) except that the limit on
1566 85 char Linux/SGI shared memory input queue
1567 0 = /dev/shmiq Master shared input queue
1568 1 = /dev/qcntl0 First device pushed
1569 2 = /dev/qcntl1 Second device pushed
1572 85 block I2O hard disk
1573 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1574 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1576 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk
1578 Partitions are handled in the same way as for IDE
1579 disks (see major number 3) except that the limit on
1582 86 char SCSI media changer
1583 0 = /dev/sch0 First SCSI media changer
1584 1 = /dev/sch1 Second SCSI media changer
1587 86 block I2O hard disk
1588 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1589 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1591 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1593 Partitions are handled in the same way as for IDE
1594 disks (see major number 3) except that the limit on
1597 87 char Sony Control-A1 stereo control bus
1598 0 = /dev/controla0 First device on chain
1599 1 = /dev/controla1 Second device on chain
1602 87 block I2O hard disk
1603 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1604 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1606 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1608 Partitions are handled in the same way as for IDE
1609 disks (see major number 3) except that the limit on
1612 88 char COMX synchronous serial card
1613 0 = /dev/comx0 COMX channel 0
1614 1 = /dev/comx1 COMX channel 1
1617 88 block Seventh IDE hard disk/CD-ROM interface
1618 0 = /dev/hdm Master: whole disk (or CD-ROM)
1619 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1621 Partitions are handled the same way as for the first
1622 interface (see major number 3).
1624 89 char I2C bus interface
1625 0 = /dev/i2c-0 First I2C adapter
1626 1 = /dev/i2c-1 Second I2C adapter
1629 89 block Eighth IDE hard disk/CD-ROM interface
1630 0 = /dev/hdo Master: whole disk (or CD-ROM)
1631 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1633 Partitions are handled the same way as for the first
1634 interface (see major number 3).
1636 90 char Memory Technology Device (RAM, ROM, Flash)
1637 0 = /dev/mtd0 First MTD (rw)
1638 1 = /dev/mtdr0 First MTD (ro)
1640 30 = /dev/mtd15 16th MTD (rw)
1641 31 = /dev/mtdr15 16th MTD (ro)
1643 90 block Ninth IDE hard disk/CD-ROM interface
1644 0 = /dev/hdq Master: whole disk (or CD-ROM)
1645 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1647 Partitions are handled the same way as for the first
1648 interface (see major number 3).
1650 91 char CAN-Bus devices
1651 0 = /dev/can0 First CAN-Bus controller
1652 1 = /dev/can1 Second CAN-Bus controller
1655 91 block Tenth IDE hard disk/CD-ROM interface
1656 0 = /dev/hds Master: whole disk (or CD-ROM)
1657 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1659 Partitions are handled the same way as for the first
1660 interface (see major number 3).
1662 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1664 92 block PPDD encrypted disk driver
1665 0 = /dev/ppdd0 First encrypted disk
1666 1 = /dev/ppdd1 Second encrypted disk
1669 Partitions are handled in the same way as for IDE
1670 disks (see major number 3) except that the limit on
1675 93 block NAND Flash Translation Layer filesystem
1676 0 = /dev/nftla First NFTL layer
1677 16 = /dev/nftlb Second NFTL layer
1679 240 = /dev/nftlp 16th NTFL layer
1683 94 block IBM S/390 DASD block storage
1684 0 = /dev/dasda First DASD device, major
1685 1 = /dev/dasda1 First DASD device, block 1
1686 2 = /dev/dasda2 First DASD device, block 2
1687 3 = /dev/dasda3 First DASD device, block 3
1688 4 = /dev/dasdb Second DASD device, major
1689 5 = /dev/dasdb1 Second DASD device, block 1
1690 6 = /dev/dasdb2 Second DASD device, block 2
1691 7 = /dev/dasdb3 Second DASD device, block 3
1695 0 = /dev/ipl Filter control device/log file
1696 1 = /dev/ipnat NAT control device/log file
1697 2 = /dev/ipstate State information log file
1698 3 = /dev/ipauth Authentication control device/log file
1701 96 char Parallel port ATAPI tape devices
1702 0 = /dev/pt0 First parallel port ATAPI tape
1703 1 = /dev/pt1 Second parallel port ATAPI tape
1705 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1706 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1709 96 block Inverse NAND Flash Translation Layer
1710 0 = /dev/inftla First INFTL layer
1711 16 = /dev/inftlb Second INFTL layer
1713 240 = /dev/inftlp 16th INTFL layer
1715 97 char Parallel port generic ATAPI interface
1716 0 = /dev/pg0 First parallel port ATAPI device
1717 1 = /dev/pg1 Second parallel port ATAPI device
1718 2 = /dev/pg2 Third parallel port ATAPI device
1719 3 = /dev/pg3 Fourth parallel port ATAPI device
1721 These devices support the same API as the generic SCSI
1724 98 char Control and Measurement Device (comedi)
1725 0 = /dev/comedi0 First comedi device
1726 1 = /dev/comedi1 Second comedi device
1729 See http://stm.lbl.gov/comedi.
1731 98 block User-mode virtual block device
1732 0 = /dev/ubda First user-mode block device
1733 16 = /dev/udbb Second user-mode block device
1736 Partitions are handled in the same way as for IDE
1737 disks (see major number 3) except that the limit on
1740 This device is used by the user-mode virtual kernel port.
1742 99 char Raw parallel ports
1743 0 = /dev/parport0 First parallel port
1744 1 = /dev/parport1 Second parallel port
1747 99 block JavaStation flash disk
1748 0 = /dev/jsfd JavaStation flash disk
1750 100 char Telephony for Linux
1751 0 = /dev/phone0 First telephony device
1752 1 = /dev/phone1 Second telephony device
1755 101 char Motorola DSP 56xxx board
1756 0 = /dev/mdspstat Status information
1757 1 = /dev/mdsp1 First DSP board I/O controls
1759 16 = /dev/mdsp16 16th DSP board I/O controls
1761 101 block AMI HyperDisk RAID controller
1762 0 = /dev/amiraid/ar0 First array whole disk
1763 16 = /dev/amiraid/ar1 Second array whole disk
1765 240 = /dev/amiraid/ar15 16th array whole disk
1767 For each device, partitions are added as:
1768 0 = /dev/amiraid/ar? Whole disk
1769 1 = /dev/amiraid/ar?p1 First partition
1770 2 = /dev/amiraid/ar?p2 Second partition
1772 15 = /dev/amiraid/ar?p15 15th partition
1776 102 block Compressed block device
1777 0 = /dev/cbd/a First compressed block device, whole device
1778 16 = /dev/cbd/b Second compressed block device, whole device
1780 240 = /dev/cbd/p 16th compressed block device, whole device
1782 Partitions are handled in the same way as for IDE
1783 disks (see major number 3) except that the limit on
1786 103 char Arla network file system
1787 0 = /dev/nnpfs0 First NNPFS device
1788 1 = /dev/nnpfs1 Second NNPFS device
1790 Arla is a free clone of the Andrew File System, AFS.
1791 The NNPFS device gives user mode filesystem
1792 implementations a kernel presence for caching and easy
1793 mounting. For more information about the project,
1794 write to <arla-drinkers@stacken.kth.se> or see
1795 http://www.stacken.kth.se/project/arla/
1797 103 block Audit device
1798 0 = /dev/audit Audit device
1800 104 char Flash BIOS support
1802 104 block Compaq Next Generation Drive Array, first controller
1803 0 = /dev/cciss/c0d0 First logical drive, whole disk
1804 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1806 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1808 Partitions are handled the same way as for Mylex
1809 DAC960 (see major number 48) except that the limit on
1812 105 char Comtrol VS-1000 serial controller
1813 0 = /dev/ttyV0 First VS-1000 port
1814 1 = /dev/ttyV1 Second VS-1000 port
1817 105 block Compaq Next Generation Drive Array, second controller
1818 0 = /dev/cciss/c1d0 First logical drive, whole disk
1819 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1821 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1823 Partitions are handled the same way as for Mylex
1824 DAC960 (see major number 48) except that the limit on
1827 106 char Comtrol VS-1000 serial controller - alternate devices
1828 0 = /dev/cuv0 First VS-1000 port
1829 1 = /dev/cuv1 Second VS-1000 port
1832 106 block Compaq Next Generation Drive Array, third controller
1833 0 = /dev/cciss/c2d0 First logical drive, whole disk
1834 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1836 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1838 Partitions are handled the same way as for Mylex
1839 DAC960 (see major number 48) except that the limit on
1842 107 char 3Dfx Voodoo Graphics device
1843 0 = /dev/3dfx Primary 3Dfx graphics device
1845 107 block Compaq Next Generation Drive Array, fourth controller
1846 0 = /dev/cciss/c3d0 First logical drive, whole disk
1847 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1849 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1851 Partitions are handled the same way as for Mylex
1852 DAC960 (see major number 48) except that the limit on
1855 108 char Device independent PPP interface
1856 0 = /dev/ppp Device independent PPP interface
1858 108 block Compaq Next Generation Drive Array, fifth controller
1859 0 = /dev/cciss/c4d0 First logical drive, whole disk
1860 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1862 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1864 Partitions are handled the same way as for Mylex
1865 DAC960 (see major number 48) except that the limit on
1868 109 char Reserved for logical volume manager
1870 109 block Compaq Next Generation Drive Array, sixth controller
1871 0 = /dev/cciss/c5d0 First logical drive, whole disk
1872 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1874 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1876 Partitions are handled the same way as for Mylex
1877 DAC960 (see major number 48) except that the limit on
1880 110 char miroMEDIA Surround board
1881 0 = /dev/srnd0 First miroMEDIA Surround board
1882 1 = /dev/srnd1 Second miroMEDIA Surround board
1885 110 block Compaq Next Generation Drive Array, seventh controller
1886 0 = /dev/cciss/c6d0 First logical drive, whole disk
1887 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1889 240 = /dev/cciss/c6d15 16th logical drive, whole disk
1891 Partitions are handled the same way as for Mylex
1892 DAC960 (see major number 48) except that the limit on
1897 111 block Compaq Next Generation Drive Array, eighth controller
1898 0 = /dev/cciss/c7d0 First logical drive, whole disk
1899 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1901 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1903 Partitions are handled the same way as for Mylex
1904 DAC960 (see major number 48) except that the limit on
1907 112 char ISI serial card
1908 0 = /dev/ttyM0 First ISI port
1909 1 = /dev/ttyM1 Second ISI port
1912 There is currently a device-naming conflict between
1913 these and PAM multimodems (major 78).
1915 112 block IBM iSeries virtual disk
1916 0 = /dev/iseries/vda First virtual disk, whole disk
1917 8 = /dev/iseries/vdb Second virtual disk, whole disk
1919 200 = /dev/iseries/vdz 26th virtual disk, whole disk
1920 208 = /dev/iseries/vdaa 27th virtual disk, whole disk
1922 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk
1924 Partitions are handled in the same way as for IDE
1925 disks (see major number 3) except that the limit on
1928 113 char ISI serial card - alternate devices
1929 0 = /dev/cum0 Callout device for ttyM0
1930 1 = /dev/cum1 Callout device for ttyM1
1933 113 block IBM iSeries virtual CD-ROM
1934 0 = /dev/iseries/vcda First virtual CD-ROM
1935 1 = /dev/iseries/vcdb Second virtual CD-ROM
1938 114 char Picture Elements ISE board
1939 0 = /dev/ise0 First ISE board
1940 1 = /dev/ise1 Second ISE board
1942 128 = /dev/isex0 Control node for first ISE board
1943 129 = /dev/isex1 Control node for second ISE board
1946 The ISE board is an embedded computer, optimized for
1947 image processing. The /dev/iseN nodes are the general
1948 I/O access to the board, the /dev/isex0 nodes command
1949 nodes used to control the board.
1951 114 block IDE BIOS powered software RAID interfaces such as the
1955 1 = /dev/ataraid/d0p1
1956 2 = /dev/ataraid/d0p2
1958 16 = /dev/ataraid/d1
1959 17 = /dev/ataraid/d1p1
1960 18 = /dev/ataraid/d1p2
1962 255 = /dev/ataraid/d15p15
1964 Partitions are handled in the same way as for IDE
1965 disks (see major number 3) except that the limit on
1968 115 char TI link cable devices (115 was formerly the console driver speaker)
1969 0 = /dev/tipar0 Parallel cable on first parallel port
1971 7 = /dev/tipar7 Parallel cable on seventh parallel port
1973 8 = /dev/tiser0 Serial cable on first serial port
1975 15 = /dev/tiser7 Serial cable on seventh serial port
1977 16 = /dev/tiusb0 First USB cable
1979 47 = /dev/tiusb31 32nd USB cable
1981 115 block NetWare (NWFS) Devices (0-255)
1983 The NWFS (NetWare) devices are used to present a
1984 collection of NetWare Mirror Groups or NetWare
1985 Partitions as a logical storage segment for
1986 use in mounting NetWare volumes. A maximum of
1987 256 NetWare volumes can be supported in a single
1990 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
1992 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
1993 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
1994 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
1996 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
1998 116 char Advanced Linux Sound Driver (ALSA)
2000 116 block MicroMemory battery backed RAM adapter (NVRAM)
2001 Supports 16 boards, 15 partitions each.
2002 Requested by neilb at cse.unsw.edu.au.
2004 0 = /dev/umem/d0 Whole of first board
2005 1 = /dev/umem/d0p1 First partition of first board
2006 2 = /dev/umem/d0p2 Second partition of first board
2007 15 = /dev/umem/d0p15 15th partition of first board
2009 16 = /dev/umem/d1 Whole of second board
2010 17 = /dev/umem/d1p1 First partition of second board
2012 255= /dev/umem/d15p15 15th partition of 16th board.
2014 117 char COSA/SRP synchronous serial card
2015 0 = /dev/cosa0c0 1st board, 1st channel
2016 1 = /dev/cosa0c1 1st board, 2nd channel
2018 16 = /dev/cosa1c0 2nd board, 1st channel
2019 17 = /dev/cosa1c1 2nd board, 2nd channel
2022 117 block Enterprise Volume Management System (EVMS)
2024 The EVMS driver uses a layered, plug-in model to provide
2025 unparalleled flexibility and extensibility in managing
2026 storage. This allows for easy expansion or customization
2027 of various levels of volume management. Requested by
2028 Mark Peloquin (peloquin at us.ibm.com).
2030 Note: EVMS populates and manages all the devnodes in
2033 http://sf.net/projects/evms
2035 0 = /dev/evms/block_device EVMS block device
2036 1 = /dev/evms/legacyname1 First EVMS legacy device
2037 2 = /dev/evms/legacyname2 Second EVMS legacy device
2039 Both ranges can grow (down or up) until they meet.
2041 254 = /dev/evms/EVMSname2 Second EVMS native device
2042 255 = /dev/evms/EVMSname1 First EVMS native device
2044 Note: legacyname(s) are derived from the normal legacy
2045 device names. For example, /dev/hda5 would become
2048 118 char IBM Cryptographic Accelerator
2049 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators
2050 1 = /dev/ica0 IBMCA Device 0
2051 2 = /dev/ica1 IBMCA Device 1
2054 119 char VMware virtual network control
2055 0 = /dev/vnet0 1st virtual network
2056 1 = /dev/vnet1 2nd virtual network
2059 120-127 char LOCAL/EXPERIMENTAL USE
2061 120-127 block LOCAL/EXPERIMENTAL USE
2062 Allocated for local/experimental use. For devices not
2063 assigned official numbers, these ranges should be
2064 used in order to avoid conflicting with future assignments.
2066 128-135 char Unix98 PTY masters
2068 These devices should not have corresponding device
2069 nodes; instead they should be accessed through the
2070 /dev/ptmx cloning interface.
2072 128 block SCSI disk devices (128-143)
2073 0 = /dev/sddy 129th SCSI disk whole disk
2074 16 = /dev/sddz 130th SCSI disk whole disk
2075 32 = /dev/sdea 131th SCSI disk whole disk
2077 240 = /dev/sden 144th SCSI disk whole disk
2079 Partitions are handled in the same way as for IDE
2080 disks (see major number 3) except that the limit on
2083 129 block SCSI disk devices (144-159)
2084 0 = /dev/sdeo 145th SCSI disk whole disk
2085 16 = /dev/sdep 146th SCSI disk whole disk
2086 32 = /dev/sdeq 147th SCSI disk whole disk
2088 240 = /dev/sdfd 160th SCSI disk whole disk
2090 Partitions are handled in the same way as for IDE
2091 disks (see major number 3) except that the limit on
2094 130 char (Misc devices)
2096 130 block SCSI disk devices (160-175)
2097 0 = /dev/sdfe 161st SCSI disk whole disk
2098 16 = /dev/sdff 162nd SCSI disk whole disk
2099 32 = /dev/sdfg 163rd SCSI disk whole disk
2101 240 = /dev/sdft 176th SCSI disk whole disk
2103 Partitions are handled in the same way as for IDE
2104 disks (see major number 3) except that the limit on
2107 131 block SCSI disk devices (176-191)
2108 0 = /dev/sdfu 177th SCSI disk whole disk
2109 16 = /dev/sdfv 178th SCSI disk whole disk
2110 32 = /dev/sdfw 179th SCSI disk whole disk
2112 240 = /dev/sdgj 192nd SCSI disk whole disk
2114 Partitions are handled in the same way as for IDE
2115 disks (see major number 3) except that the limit on
2118 132 block SCSI disk devices (192-207)
2119 0 = /dev/sdgk 193rd SCSI disk whole disk
2120 16 = /dev/sdgl 194th SCSI disk whole disk
2121 32 = /dev/sdgm 195th SCSI disk whole disk
2123 240 = /dev/sdgz 208th SCSI disk whole disk
2125 Partitions are handled in the same way as for IDE
2126 disks (see major number 3) except that the limit on
2129 133 block SCSI disk devices (208-223)
2130 0 = /dev/sdha 209th SCSI disk whole disk
2131 16 = /dev/sdhb 210th SCSI disk whole disk
2132 32 = /dev/sdhc 211th SCSI disk whole disk
2134 240 = /dev/sdhp 224th SCSI disk whole disk
2136 Partitions are handled in the same way as for IDE
2137 disks (see major number 3) except that the limit on
2140 134 block SCSI disk devices (224-239)
2141 0 = /dev/sdhq 225th SCSI disk whole disk
2142 16 = /dev/sdhr 226th SCSI disk whole disk
2143 32 = /dev/sdhs 227th SCSI disk whole disk
2145 240 = /dev/sdif 240th SCSI disk whole disk
2147 Partitions are handled in the same way as for IDE
2148 disks (see major number 3) except that the limit on
2151 135 block SCSI disk devices (240-255)
2152 0 = /dev/sdig 241st SCSI disk whole disk
2153 16 = /dev/sdih 242nd SCSI disk whole disk
2154 32 = /dev/sdih 243rd SCSI disk whole disk
2156 240 = /dev/sdiv 256th SCSI disk whole disk
2158 Partitions are handled in the same way as for IDE
2159 disks (see major number 3) except that the limit on
2162 136-143 char Unix98 PTY slaves
2163 0 = /dev/pts/0 First Unix98 pseudo-TTY
2164 1 = /dev/pts/1 Second Unix98 pseudo-TTY
2167 These device nodes are automatically generated with
2168 the proper permissions and modes by mounting the
2169 devpts filesystem onto /dev/pts with the appropriate
2170 mount options (distribution dependent, however, on
2171 *most* distributions the appropriate options are
2172 "mode=0620,gid=<gid of the "tty" group>".)
2174 136 block Mylex DAC960 PCI RAID controller; ninth controller
2175 0 = /dev/rd/c8d0 First disk, whole disk
2176 8 = /dev/rd/c8d1 Second disk, whole disk
2178 248 = /dev/rd/c8d31 32nd disk, whole disk
2180 Partitions are handled as for major 48.
2182 137 block Mylex DAC960 PCI RAID controller; tenth controller
2183 0 = /dev/rd/c9d0 First disk, whole disk
2184 8 = /dev/rd/c9d1 Second disk, whole disk
2186 248 = /dev/rd/c9d31 32nd disk, whole disk
2188 Partitions are handled as for major 48.
2190 138 block Mylex DAC960 PCI RAID controller; eleventh controller
2191 0 = /dev/rd/c10d0 First disk, whole disk
2192 8 = /dev/rd/c10d1 Second disk, whole disk
2194 248 = /dev/rd/c10d31 32nd disk, whole disk
2196 Partitions are handled as for major 48.
2198 139 block Mylex DAC960 PCI RAID controller; twelfth controller
2199 0 = /dev/rd/c11d0 First disk, whole disk
2200 8 = /dev/rd/c11d1 Second disk, whole disk
2202 248 = /dev/rd/c11d31 32nd disk, whole disk
2204 Partitions are handled as for major 48.
2206 140 block Mylex DAC960 PCI RAID controller; thirteenth controller
2207 0 = /dev/rd/c12d0 First disk, whole disk
2208 8 = /dev/rd/c12d1 Second disk, whole disk
2210 248 = /dev/rd/c12d31 32nd disk, whole disk
2212 Partitions are handled as for major 48.
2214 141 block Mylex DAC960 PCI RAID controller; fourteenth controller
2215 0 = /dev/rd/c13d0 First disk, whole disk
2216 8 = /dev/rd/c13d1 Second disk, whole disk
2218 248 = /dev/rd/c13d31 32nd disk, whole disk
2220 Partitions are handled as for major 48.
2222 142 block Mylex DAC960 PCI RAID controller; fifteenth controller
2223 0 = /dev/rd/c14d0 First disk, whole disk
2224 8 = /dev/rd/c14d1 Second disk, whole disk
2226 248 = /dev/rd/c14d31 32nd disk, whole disk
2228 Partitions are handled as for major 48.
2230 143 block Mylex DAC960 PCI RAID controller; sixteenth controller
2231 0 = /dev/rd/c15d0 First disk, whole disk
2232 8 = /dev/rd/c15d1 Second disk, whole disk
2234 248 = /dev/rd/c15d31 32nd disk, whole disk
2236 Partitions are handled as for major 48.
2238 144 char Encapsulated PPP
2239 0 = /dev/pppox0 First PPP over Ethernet
2241 63 = /dev/pppox63 64th PPP over Ethernet
2243 This is primarily used for ADSL.
2245 The SST 5136-DN DeviceNet interface driver has been
2246 relocated to major 183 due to an unfortunate conflict.
2248 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
2249 0 = mounted device 256
2250 255 = mounted device 511
2252 145 char SAM9407-based soundcard
2254 1 = /dev/sam0_sequencer
2255 2 = /dev/sam0_midi00
2258 6 = /dev/sam0_sndstat
2259 18 = /dev/sam0_midi01
2260 34 = /dev/sam0_midi02
2261 50 = /dev/sam0_midi03
2262 64 = /dev/sam1_mixer
2264 128 = /dev/sam2_mixer
2266 192 = /dev/sam3_mixer
2269 Device functions match OSS, but offer a number of
2270 addons, which are sam9407 specific. OSS can be
2271 operated simultaneously, taking care of the codec.
2273 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
2274 0 = mounted device 512
2275 255 = mounted device 767
2277 146 char SYSTRAM SCRAMNet mirrored-memory network
2278 0 = /dev/scramnet0 First SCRAMNet device
2279 1 = /dev/scramnet1 Second SCRAMNet device
2282 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
2283 0 = mounted device 768
2284 255 = mounted device 1023
2286 147 char Aureal Semiconductor Vortex Audio device
2287 0 = /dev/aureal0 First Aureal Vortex
2288 1 = /dev/aureal1 Second Aureal Vortex
2291 147 block Distributed Replicated Block Device (DRBD)
2292 0 = /dev/drbd0 First DRBD device
2293 1 = /dev/drbd1 Second DRBD device
2296 148 char Technology Concepts serial card
2297 0 = /dev/ttyT0 First TCL port
2298 1 = /dev/ttyT1 Second TCL port
2301 149 char Technology Concepts serial card - alternate devices
2302 0 = /dev/cut0 Callout device for ttyT0
2303 1 = /dev/cut0 Callout device for ttyT1
2306 150 char Real-Time Linux FIFOs
2307 0 = /dev/rtf0 First RTLinux FIFO
2308 1 = /dev/rtf1 Second RTLinux FIFO
2311 151 char DPT I2O SmartRaid V controller
2312 0 = /dev/dpti0 First DPT I2O adapter
2313 1 = /dev/dpti1 Second DPT I2O adapter
2316 152 char EtherDrive Control Device
2317 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive
2318 1 = /dev/etherd/err Monitor errors
2319 2 = /dev/etherd/raw Raw AoE packet monitor
2321 152 block EtherDrive Block Devices
2322 0 = /dev/etherd/0 EtherDrive 0
2324 255 = /dev/etherd/255 EtherDrive 255
2326 153 char SPI Bus Interface (sometimes referred to as MicroWire)
2327 0 = /dev/spi0 First SPI device on the bus
2328 1 = /dev/spi1 Second SPI device on the bus
2330 15 = /dev/spi15 Sixteenth SPI device on the bus
2332 153 block Enhanced Metadisk RAID (EMD) storage units
2333 0 = /dev/emd/0 First unit
2334 1 = /dev/emd/0p1 Partition 1 on First unit
2335 2 = /dev/emd/0p2 Partition 2 on First unit
2337 15 = /dev/emd/0p15 Partition 15 on First unit
2339 16 = /dev/emd/1 Second unit
2340 32 = /dev/emd/2 Third unit
2342 240 = /dev/emd/15 Sixteenth unit
2344 Partitions are handled in the same way as for IDE
2345 disks (see major number 3) except that the limit on
2348 154 char Specialix RIO serial card
2349 0 = /dev/ttySR0 First RIO port
2351 255 = /dev/ttySR255 256th RIO port
2353 155 char Specialix RIO serial card - alternate devices
2354 0 = /dev/cusr0 Callout device for ttySR0
2356 255 = /dev/cusr255 Callout device for ttySR255
2358 156 char Specialix RIO serial card
2359 0 = /dev/ttySR256 257th RIO port
2361 255 = /dev/ttySR511 512th RIO port
2363 157 char Specialix RIO serial card - alternate devices
2364 0 = /dev/cusr256 Callout device for ttySR256
2366 255 = /dev/cusr511 Callout device for ttySR511
2368 158 char Dialogic GammaLink fax driver
2369 0 = /dev/gfax0 GammaLink channel 0
2370 1 = /dev/gfax1 GammaLink channel 1
2377 160 char General Purpose Instrument Bus (GPIB)
2378 0 = /dev/gpib0 First GPIB bus
2379 1 = /dev/gpib1 Second GPIB bus
2382 160 block Carmel 8-port SATA Disks on First Controller
2383 0 = /dev/carmel/0 SATA disk 0 whole disk
2384 1 = /dev/carmel/0p1 SATA disk 0 partition 1
2386 31 = /dev/carmel/0p31 SATA disk 0 partition 31
2388 32 = /dev/carmel/1 SATA disk 1 whole disk
2389 64 = /dev/carmel/2 SATA disk 2 whole disk
2391 224 = /dev/carmel/7 SATA disk 7 whole disk
2393 Partitions are handled in the same way as for IDE
2394 disks (see major number 3) except that the limit on
2397 161 char IrCOMM devices (IrDA serial/parallel emulation)
2398 0 = /dev/ircomm0 First IrCOMM device
2399 1 = /dev/ircomm1 Second IrCOMM device
2401 16 = /dev/irlpt0 First IrLPT device
2402 17 = /dev/irlpt1 Second IrLPT device
2405 161 block Carmel 8-port SATA Disks on Second Controller
2406 0 = /dev/carmel/8 SATA disk 8 whole disk
2407 1 = /dev/carmel/8p1 SATA disk 8 partition 1
2409 31 = /dev/carmel/8p31 SATA disk 8 partition 31
2411 32 = /dev/carmel/9 SATA disk 9 whole disk
2412 64 = /dev/carmel/10 SATA disk 10 whole disk
2414 224 = /dev/carmel/15 SATA disk 15 whole disk
2416 Partitions are handled in the same way as for IDE
2417 disks (see major number 3) except that the limit on
2420 162 char Raw block device interface
2421 0 = /dev/rawctl Raw I/O control device
2422 1 = /dev/raw/raw1 First raw I/O device
2423 2 = /dev/raw/raw2 Second raw I/O device
2428 164 char Chase Research AT/PCI-Fast serial card
2429 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2431 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2432 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2434 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2435 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2437 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2438 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2440 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2442 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2443 0 = /dev/cuch0 Callout device for ttyCH0
2445 63 = /dev/cuch63 Callout device for ttyCH63
2447 166 char ACM USB modems
2448 0 = /dev/ttyACM0 First ACM modem
2449 1 = /dev/ttyACM1 Second ACM modem
2452 167 char ACM USB modems - alternate devices
2453 0 = /dev/cuacm0 Callout device for ttyACM0
2454 1 = /dev/cuacm1 Callout device for ttyACM1
2457 168 char Eracom CSA7000 PCI encryption adaptor
2458 0 = /dev/ecsa0 First CSA7000
2459 1 = /dev/ecsa1 Second CSA7000
2462 169 char Eracom CSA8000 PCI encryption adaptor
2463 0 = /dev/ecsa8-0 First CSA8000
2464 1 = /dev/ecsa8-1 Second CSA8000
2467 170 char AMI MegaRAC remote access controller
2468 0 = /dev/megarac0 First MegaRAC card
2469 1 = /dev/megarac1 Second MegaRAC card
2472 171 char Reserved for IEEE 1394 (Firewire)
2474 172 char Moxa Intellio serial card
2475 0 = /dev/ttyMX0 First Moxa port
2476 1 = /dev/ttyMX1 Second Moxa port
2478 127 = /dev/ttyMX127 128th Moxa port
2479 128 = /dev/moxactl Moxa control port
2481 173 char Moxa Intellio serial card - alternate devices
2482 0 = /dev/cumx0 Callout device for ttyMX0
2483 1 = /dev/cumx1 Callout device for ttyMX1
2485 127 = /dev/cumx127 Callout device for ttyMX127
2487 174 char SmartIO serial card
2488 0 = /dev/ttySI0 First SmartIO port
2489 1 = /dev/ttySI1 Second SmartIO port
2492 175 char SmartIO serial card - alternate devices
2493 0 = /dev/cusi0 Callout device for ttySI0
2494 1 = /dev/cusi1 Callout device for ttySI1
2497 176 char nCipher nFast PCI crypto accelerator
2498 0 = /dev/nfastpci0 First nFast PCI device
2499 1 = /dev/nfastpci1 First nFast PCI device
2502 177 char TI PCILynx memory spaces
2503 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2505 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2506 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2508 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2509 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2511 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2513 178 char Giganet cLAN1xxx virtual interface adapter
2514 0 = /dev/clanvi0 First cLAN adapter
2515 1 = /dev/clanvi1 Second cLAN adapter
2518 179 block MMC block devices
2519 0 = /dev/mmcblk0 First SD/MMC card
2520 1 = /dev/mmcblk0p1 First partition on first MMC card
2521 8 = /dev/mmcblk1 Second SD/MMC card
2524 The start of next SD/MMC card can be configured with
2525 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe
2526 time using the mmcblk.perdev_minors option. That would
2527 bump the offset between each card to be the configured
2528 value instead of the default 8.
2530 179 char CCube DVXChip-based PCI products
2531 0 = /dev/dvxirq0 First DVX device
2532 1 = /dev/dvxirq1 Second DVX device
2535 180 char USB devices
2536 0 = /dev/usb/lp0 First USB printer
2538 15 = /dev/usb/lp15 16th USB printer
2539 48 = /dev/usb/scanner0 First USB scanner
2541 63 = /dev/usb/scanner15 16th USB scanner
2542 64 = /dev/usb/rio500 Diamond Rio 500
2543 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de)
2544 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD)
2545 96 = /dev/usb/hiddev0 1st USB HID device
2547 111 = /dev/usb/hiddev15 16th USB HID device
2548 112 = /dev/usb/auer0 1st auerswald ISDN device
2550 127 = /dev/usb/auer15 16th auerswald ISDN device
2551 128 = /dev/usb/brlvgr0 First Braille Voyager device
2553 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device
2554 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device
2555 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device
2557 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device
2558 144 = /dev/usb/lcd USB LCD device
2559 160 = /dev/usb/legousbtower0 1st USB Legotower device
2561 175 = /dev/usb/legousbtower15 16th USB Legotower device
2562 176 = /dev/usb/usbtmc1 First USB TMC device
2564 191 = /dev/usb/usbtmc16 16th USB TMC device
2565 192 = /dev/usb/yurex1 First USB Yurex device
2567 209 = /dev/usb/yurex16 16th USB Yurex device
2568 240 = /dev/usb/dabusb0 First daubusb device
2570 243 = /dev/usb/dabusb3 Fourth dabusb device
2572 180 block USB block devices
2573 0 = /dev/uba First USB block device
2574 8 = /dev/ubb Second USB block device
2575 16 = /dev/ubc Third USB block device
2578 181 char Conrad Electronic parallel port radio clocks
2579 0 = /dev/pcfclock0 First Conrad radio clock
2580 1 = /dev/pcfclock1 Second Conrad radio clock
2583 182 char Picture Elements THR2 binarizer
2584 0 = /dev/pethr0 First THR2 board
2585 1 = /dev/pethr1 Second THR2 board
2588 183 char SST 5136-DN DeviceNet interface
2589 0 = /dev/ss5136dn0 First DeviceNet interface
2590 1 = /dev/ss5136dn1 Second DeviceNet interface
2593 This device used to be assigned to major number 144.
2594 It had to be moved due to an unfortunate conflict.
2596 184 char Picture Elements' video simulator/sender
2597 0 = /dev/pevss0 First sender board
2598 1 = /dev/pevss1 Second sender board
2601 185 char InterMezzo high availability file system
2602 0 = /dev/intermezzo0 First cache manager
2603 1 = /dev/intermezzo1 Second cache manager
2606 See http://web.archive.org/web/20080115195241/
2607 http://inter-mezzo.org/index.html
2609 186 char Object-based storage control device
2610 0 = /dev/obd0 First obd control device
2611 1 = /dev/obd1 Second obd control device
2614 See ftp://ftp.lustre.org/pub/obd for code and information.
2616 187 char DESkey hardware encryption device
2617 0 = /dev/deskey0 First DES key
2618 1 = /dev/deskey1 Second DES key
2621 188 char USB serial converters
2622 0 = /dev/ttyUSB0 First USB serial converter
2623 1 = /dev/ttyUSB1 Second USB serial converter
2626 189 char USB serial converters - alternate devices
2627 0 = /dev/cuusb0 Callout device for ttyUSB0
2628 1 = /dev/cuusb1 Callout device for ttyUSB1
2631 190 char Kansas City tracker/tuner card
2632 0 = /dev/kctt0 First KCT/T card
2633 1 = /dev/kctt1 Second KCT/T card
2636 191 char Reserved for PCMCIA
2638 192 char Kernel profiling interface
2639 0 = /dev/profile Profiling control device
2640 1 = /dev/profile0 Profiling device for CPU 0
2641 2 = /dev/profile1 Profiling device for CPU 1
2644 193 char Kernel event-tracing interface
2645 0 = /dev/trace Tracing control device
2646 1 = /dev/trace0 Tracing device for CPU 0
2647 2 = /dev/trace1 Tracing device for CPU 1
2650 194 char linVideoStreams (LINVS)
2651 0 = /dev/mvideo/status0 Video compression status
2652 1 = /dev/mvideo/stream0 Video stream
2653 2 = /dev/mvideo/frame0 Single compressed frame
2654 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2655 4 = /dev/mvideo/codec0 Direct codec access
2656 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2658 16 = /dev/mvideo/status1 Second device
2660 32 = /dev/mvideo/status2 Third device
2663 240 = /dev/mvideo/status15 16th device
2666 195 char Nvidia graphics devices
2667 0 = /dev/nvidia0 First Nvidia card
2668 1 = /dev/nvidia1 Second Nvidia card
2670 255 = /dev/nvidiactl Nvidia card control device
2672 196 char Tormenta T1 card
2673 0 = /dev/tor/0 Master control channel for all cards
2674 1 = /dev/tor/1 First DS0
2675 2 = /dev/tor/2 Second DS0
2677 48 = /dev/tor/48 48th DS0
2678 49 = /dev/tor/49 First pseudo-channel
2679 50 = /dev/tor/50 Second pseudo-channel
2682 197 char OpenTNF tracing facility
2683 0 = /dev/tnf/t0 Trace 0 data extraction
2684 1 = /dev/tnf/t1 Trace 1 data extraction
2686 128 = /dev/tnf/status Tracing facility status
2687 130 = /dev/tnf/trace Tracing device
2689 198 char Total Impact TPMP2 quad coprocessor PCI card
2690 0 = /dev/tpmp2/0 First card
2691 1 = /dev/tpmp2/1 Second card
2694 199 char Veritas volume manager (VxVM) volumes
2695 0 = /dev/vx/rdsk/*/* First volume
2696 1 = /dev/vx/rdsk/*/* Second volume
2699 199 block Veritas volume manager (VxVM) volumes
2700 0 = /dev/vx/dsk/*/* First volume
2701 1 = /dev/vx/dsk/*/* Second volume
2704 The namespace in these directories is maintained by
2705 the user space VxVM software.
2707 200 char Veritas VxVM configuration interface
2708 0 = /dev/vx/config Configuration access node
2709 1 = /dev/vx/trace Volume i/o trace access node
2710 2 = /dev/vx/iod Volume i/o daemon access node
2711 3 = /dev/vx/info Volume information access node
2712 4 = /dev/vx/task Volume tasks access node
2713 5 = /dev/vx/taskmon Volume tasks monitor daemon
2715 201 char Veritas VxVM dynamic multipathing driver
2716 0 = /dev/vx/rdmp/* First multipath device
2717 1 = /dev/vx/rdmp/* Second multipath device
2719 201 block Veritas VxVM dynamic multipathing driver
2720 0 = /dev/vx/dmp/* First multipath device
2721 1 = /dev/vx/dmp/* Second multipath device
2724 The namespace in these directories is maintained by
2725 the user space VxVM software.
2727 202 char CPU model-specific registers
2728 0 = /dev/cpu/0/msr MSRs on CPU 0
2729 1 = /dev/cpu/1/msr MSRs on CPU 1
2732 202 block Xen Virtual Block Device
2733 0 = /dev/xvda First Xen VBD whole disk
2734 16 = /dev/xvdb Second Xen VBD whole disk
2735 32 = /dev/xvdc Third Xen VBD whole disk
2737 240 = /dev/xvdp Sixteenth Xen VBD whole disk
2739 Partitions are handled in the same way as for IDE
2740 disks (see major number 3) except that the limit on
2743 203 char CPU CPUID information
2744 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2745 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2748 204 char Low-density serial ports
2749 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2750 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2751 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2752 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2753 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2754 5 = /dev/ttySA0 StrongARM builtin serial port 0
2755 6 = /dev/ttySA1 StrongARM builtin serial port 1
2756 7 = /dev/ttySA2 StrongARM builtin serial port 2
2757 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2758 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2759 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2760 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2761 12 = /dev/ttyFW0 Firmware console - port 0
2762 13 = /dev/ttyFW1 Firmware console - port 1
2763 14 = /dev/ttyFW2 Firmware console - port 2
2764 15 = /dev/ttyFW3 Firmware console - port 3
2765 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2767 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2768 32 = /dev/ttyDB0 DataBooster serial port 0
2770 39 = /dev/ttyDB7 DataBooster serial port 7
2771 40 = /dev/ttySG0 SGI Altix console port
2772 41 = /dev/ttySMX0 Motorola i.MX - port 0
2773 42 = /dev/ttySMX1 Motorola i.MX - port 1
2774 43 = /dev/ttySMX2 Motorola i.MX - port 2
2775 44 = /dev/ttyMM0 Marvell MPSC - port 0
2776 45 = /dev/ttyMM1 Marvell MPSC - port 1
2777 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0
2779 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
2780 50 = /dev/ttyIOC0 Altix serial card
2782 81 = /dev/ttyIOC31 Altix serial card
2783 82 = /dev/ttyVR0 NEC VR4100 series SIU
2784 83 = /dev/ttyVR1 NEC VR4100 series DSIU
2785 84 = /dev/ttyIOC84 Altix ioc4 serial card
2787 115 = /dev/ttyIOC115 Altix ioc4 serial card
2788 116 = /dev/ttySIOC0 Altix ioc3 serial card
2790 147 = /dev/ttySIOC31 Altix ioc3 serial card
2791 148 = /dev/ttyPSC0 PPC PSC - port 0
2793 153 = /dev/ttyPSC5 PPC PSC - port 5
2794 154 = /dev/ttyAT0 ATMEL serial port 0
2796 169 = /dev/ttyAT15 ATMEL serial port 15
2797 170 = /dev/ttyNX0 Hilscher netX serial port 0
2799 185 = /dev/ttyNX15 Hilscher netX serial port 15
2800 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
2801 187 = /dev/ttyUL0 Xilinx uartlite - port 0
2803 190 = /dev/ttyUL3 Xilinx uartlite - port 3
2804 191 = /dev/xvc0 Xen virtual console - port 0
2805 192 = /dev/ttyPZ0 pmac_zilog - port 0
2807 195 = /dev/ttyPZ3 pmac_zilog - port 3
2808 196 = /dev/ttyTX0 TX39/49 serial port 0
2810 204 = /dev/ttyTX7 TX39/49 serial port 7
2811 205 = /dev/ttySC0 SC26xx serial port 0
2812 206 = /dev/ttySC1 SC26xx serial port 1
2813 207 = /dev/ttySC2 SC26xx serial port 2
2814 208 = /dev/ttySC3 SC26xx serial port 3
2815 209 = /dev/ttyMAX0 MAX3100 serial port 0
2816 210 = /dev/ttyMAX1 MAX3100 serial port 1
2817 211 = /dev/ttyMAX2 MAX3100 serial port 2
2818 212 = /dev/ttyMAX3 MAX3100 serial port 3
2820 205 char Low-density serial ports (alternate device)
2821 0 = /dev/culu0 Callout device for ttyLU0
2822 1 = /dev/culu1 Callout device for ttyLU1
2823 2 = /dev/culu2 Callout device for ttyLU2
2824 3 = /dev/culu3 Callout device for ttyLU3
2825 4 = /dev/cufb0 Callout device for ttyFB0
2826 5 = /dev/cusa0 Callout device for ttySA0
2827 6 = /dev/cusa1 Callout device for ttySA1
2828 7 = /dev/cusa2 Callout device for ttySA2
2829 8 = /dev/cusc0 Callout device for ttySC0
2830 9 = /dev/cusc1 Callout device for ttySC1
2831 10 = /dev/cusc2 Callout device for ttySC2
2832 11 = /dev/cusc3 Callout device for ttySC3
2833 12 = /dev/cufw0 Callout device for ttyFW0
2834 13 = /dev/cufw1 Callout device for ttyFW1
2835 14 = /dev/cufw2 Callout device for ttyFW2
2836 15 = /dev/cufw3 Callout device for ttyFW3
2837 16 = /dev/cuam0 Callout device for ttyAM0
2839 31 = /dev/cuam15 Callout device for ttyAM15
2840 32 = /dev/cudb0 Callout device for ttyDB0
2842 39 = /dev/cudb7 Callout device for ttyDB7
2843 40 = /dev/cusg0 Callout device for ttySG0
2844 41 = /dev/ttycusmx0 Callout device for ttySMX0
2845 42 = /dev/ttycusmx1 Callout device for ttySMX1
2846 43 = /dev/ttycusmx2 Callout device for ttySMX2
2847 46 = /dev/cucpm0 Callout device for ttyCPM0
2849 49 = /dev/cucpm5 Callout device for ttyCPM5
2850 50 = /dev/cuioc40 Callout device for ttyIOC40
2852 81 = /dev/cuioc431 Callout device for ttyIOC431
2853 82 = /dev/cuvr0 Callout device for ttyVR0
2854 83 = /dev/cuvr1 Callout device for ttyVR1
2856 206 char OnStream SC-x0 tape devices
2857 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2858 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2860 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2861 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2863 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2864 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2866 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2867 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2869 128 = /dev/nosst0 No rewind version of /dev/osst0
2870 129 = /dev/nosst1 No rewind version of /dev/osst1
2872 160 = /dev/nosst0l No rewind version of /dev/osst0l
2873 161 = /dev/nosst1l No rewind version of /dev/osst1l
2875 192 = /dev/nosst0m No rewind version of /dev/osst0m
2876 193 = /dev/nosst1m No rewind version of /dev/osst1m
2878 224 = /dev/nosst0a No rewind version of /dev/osst0a
2879 225 = /dev/nosst1a No rewind version of /dev/osst1a
2882 The OnStream SC-x0 SCSI tapes do not support the
2883 standard SCSI SASD command set and therefore need
2884 their own driver "osst". Note that the IDE, USB (and
2885 maybe ParPort) versions may be driven via ide-scsi or
2886 usb-storage SCSI emulation and this osst device and
2887 driver as well. The ADR-x0 drives are QIC-157
2888 compliant and don't need osst.
2890 207 char Compaq ProLiant health feature indicate
2891 0 = /dev/cpqhealth/cpqw Redirector interface
2892 1 = /dev/cpqhealth/crom EISA CROM
2893 2 = /dev/cpqhealth/cdt Data Table
2894 3 = /dev/cpqhealth/cevt Event Log
2895 4 = /dev/cpqhealth/casr Automatic Server Recovery
2896 5 = /dev/cpqhealth/cecc ECC Memory
2897 6 = /dev/cpqhealth/cmca Machine Check Architecture
2898 7 = /dev/cpqhealth/ccsm Deprecated CDT
2899 8 = /dev/cpqhealth/cnmi NMI Handling
2900 9 = /dev/cpqhealth/css Sideshow Management
2901 10 = /dev/cpqhealth/cram CMOS interface
2902 11 = /dev/cpqhealth/cpci PCI IRQ interface
2904 208 char User space serial ports
2905 0 = /dev/ttyU0 First user space serial port
2906 1 = /dev/ttyU1 Second user space serial port
2909 209 char User space serial ports (alternate devices)
2910 0 = /dev/cuu0 Callout device for ttyU0
2911 1 = /dev/cuu1 Callout device for ttyU1
2914 210 char SBE, Inc. sync/async serial card
2915 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2916 1 = /dev/sbei/dld0 Download device for board 0
2917 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2918 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2919 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2920 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2921 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2922 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2923 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2924 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2925 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2926 11 = /dev/sbei/dld1 Download device for board 1
2927 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2928 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2929 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2930 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2931 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2932 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2933 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2934 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2937 Yes, each board is really spaced 10 (decimal) apart.
2939 211 char Addinum CPCI1500 digital I/O card
2940 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2941 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2944 212 char LinuxTV.org DVB driver subsystem
2945 0 = /dev/dvb/adapter0/video0 first video decoder of first card
2946 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card
2947 2 = /dev/dvb/adapter0/sec0 (obsolete/unused)
2948 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card
2949 4 = /dev/dvb/adapter0/demux0 first demux device of first card
2950 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card
2951 6 = /dev/dvb/adapter0/ca0 first common access port of first card
2952 7 = /dev/dvb/adapter0/net0 first network device of first card
2953 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card
2954 9 = /dev/dvb/adapter0/video1 second video decoder of first card
2956 64 = /dev/dvb/adapter1/video0 first video decoder of second card
2958 128 = /dev/dvb/adapter2/video0 first video decoder of third card
2960 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card
2962 216 char Bluetooth RFCOMM TTY devices
2963 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device
2964 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device
2967 217 char Bluetooth RFCOMM TTY devices (alternate devices)
2968 0 = /dev/curf0 Callout device for rfcomm0
2969 1 = /dev/curf1 Callout device for rfcomm1
2972 218 char The Logical Company bus Unibus/Qbus adapters
2973 0 = /dev/logicalco/bci/0 First bus adapter
2974 1 = /dev/logicalco/bci/1 First bus adapter
2977 219 char The Logical Company DCI-1300 digital I/O card
2978 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2979 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2982 220 char Myricom Myrinet "GM" board
2983 0 = /dev/myricom/gm0 First Myrinet GM board
2984 1 = /dev/myricom/gmp0 First board "root access"
2985 2 = /dev/myricom/gm1 Second Myrinet GM board
2986 3 = /dev/myricom/gmp1 Second board "root access"
2990 0 = /dev/bus/vme/m0 First master image
2991 1 = /dev/bus/vme/m1 Second master image
2992 2 = /dev/bus/vme/m2 Third master image
2993 3 = /dev/bus/vme/m3 Fourth master image
2994 4 = /dev/bus/vme/s0 First slave image
2995 5 = /dev/bus/vme/s1 Second slave image
2996 6 = /dev/bus/vme/s2 Third slave image
2997 7 = /dev/bus/vme/s3 Fourth slave image
2998 8 = /dev/bus/vme/ctl Control
3000 It is expected that all VME bus drivers will use the
3001 same interface. For interface documentation see
3002 http://www.vmelinux.org/.
3004 224 char A2232 serial card
3005 0 = /dev/ttyY0 First A2232 port
3006 1 = /dev/ttyY1 Second A2232 port
3009 225 char A2232 serial card (alternate devices)
3010 0 = /dev/cuy0 Callout device for ttyY0
3011 1 = /dev/cuy1 Callout device for ttyY1
3014 226 char Direct Rendering Infrastructure (DRI)
3015 0 = /dev/dri/card0 First graphics card
3016 1 = /dev/dri/card1 Second graphics card
3019 227 char IBM 3270 terminal Unix tty access
3020 1 = /dev/3270/tty1 First 3270 terminal
3021 2 = /dev/3270/tty2 Seconds 3270 terminal
3024 228 char IBM 3270 terminal block-mode access
3025 0 = /dev/3270/tub Controlling interface
3026 1 = /dev/3270/tub1 First 3270 terminal
3027 2 = /dev/3270/tub2 Second 3270 terminal
3030 229 char IBM iSeries/pSeries virtual console
3031 0 = /dev/hvc0 First console port
3032 1 = /dev/hvc1 Second console port
3035 230 char IBM iSeries virtual tape
3036 0 = /dev/iseries/vt0 First virtual tape, mode 0
3037 1 = /dev/iseries/vt1 Second virtual tape, mode 0
3039 32 = /dev/iseries/vt0l First virtual tape, mode 1
3040 33 = /dev/iseries/vt1l Second virtual tape, mode 1
3042 64 = /dev/iseries/vt0m First virtual tape, mode 2
3043 65 = /dev/iseries/vt1m Second virtual tape, mode 2
3045 96 = /dev/iseries/vt0a First virtual tape, mode 3
3046 97 = /dev/iseries/vt1a Second virtual tape, mode 3
3048 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind
3049 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind
3051 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind
3052 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind
3054 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind
3055 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind
3057 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind
3058 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind
3061 "No rewind" refers to the omission of the default
3062 automatic rewind on device close. The MTREW or MTOFFL
3063 ioctl()'s can be used to rewind the tape regardless of
3064 the device used to access it.
3067 0 = /dev/infiniband/umad0
3068 1 = /dev/infiniband/umad1
3070 63 = /dev/infiniband/umad63 63rd InfiniBandMad device
3071 64 = /dev/infiniband/issm0 First InfiniBand IsSM device
3072 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device
3074 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device
3075 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device
3076 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device
3078 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device
3080 232 char Biometric Devices
3081 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device
3082 1 = /dev/biometric/sensor0/iris first iris sensor on first device
3083 2 = /dev/biometric/sensor0/retina first retina sensor on first device
3084 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device
3085 4 = /dev/biometric/sensor0/facial first facial sensor on first device
3086 5 = /dev/biometric/sensor0/hand first hand sensor on first device
3088 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device
3090 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device
3093 233 char PathScale InfiniPath interconnect
3094 0 = /dev/ipath Primary device for programs (any unit)
3095 1 = /dev/ipath0 Access specifically to unit 0
3096 2 = /dev/ipath1 Access specifically to unit 1
3098 4 = /dev/ipath3 Access specifically to unit 3
3099 129 = /dev/ipath_sma Device used by Subnet Management Agent
3100 130 = /dev/ipath_diag Device used by diagnostics programs
3104 240-254 char LOCAL/EXPERIMENTAL USE
3106 240-254 block LOCAL/EXPERIMENTAL USE
3107 Allocated for local/experimental use. For devices not
3108 assigned official numbers, these ranges should be
3109 used in order to avoid conflicting with future assignments.
3115 This major is reserved to assist the expansion to a
3116 larger number space. No device nodes with this major
3117 should ever be created on the filesystem.
3118 (This is probably not true anymore, but I'll leave it
3121 ---LARGE MAJORS!!!!!---
3123 256 char Equinox SST multi-port serial boards
3124 0 = /dev/ttyEQ0 First serial port on first Equinox SST board
3125 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board
3126 128 = /dev/ttyEQ128 First serial port on second Equinox SST board
3128 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board
3130 256 block Resident Flash Disk Flash Translation Layer
3131 0 = /dev/rfda First RFD FTL layer
3132 16 = /dev/rfdb Second RFD FTL layer
3134 240 = /dev/rfdp 16th RFD FTL layer
3136 257 char Phoenix Technologies Cryptographic Services Driver
3137 0 = /dev/ptlsec Crypto Services Driver
3139 257 block SSFDC Flash Translation Layer filesystem
3140 0 = /dev/ssfdca First SSFDC layer
3141 8 = /dev/ssfdcb Second SSFDC layer
3142 16 = /dev/ssfdcc Third SSFDC layer
3143 24 = /dev/ssfdcd 4th SSFDC layer
3144 32 = /dev/ssfdce 5th SSFDC layer
3145 40 = /dev/ssfdcf 6th SSFDC layer
3146 48 = /dev/ssfdcg 7th SSFDC layer
3147 56 = /dev/ssfdch 8th SSFDC layer
3149 258 block ROM/Flash read-only translation layer
3150 0 = /dev/blockrom0 First ROM card's translation layer interface
3151 1 = /dev/blockrom1 Second ROM card's translation layer interface
3154 259 block Block Extended Major
3155 Used dynamically to hold additional partition minor
3156 numbers and allow large numbers of partitions per device
3158 259 char FPGA configuration interfaces
3159 0 = /dev/icap0 First Xilinx internal configuration
3160 1 = /dev/icap1 Second Xilinx internal configuration
3162 260 char OSD (Object-based-device) SCSI Device
3163 0 = /dev/osd0 First OSD Device
3164 1 = /dev/osd1 Second OSD Device
3166 255 = /dev/osd255 256th OSD Device
3168 **** ADDITIONAL /dev DIRECTORY ENTRIES
3170 This section details additional entries that should or may exist in
3171 the /dev directory. It is preferred that symbolic links use the same
3172 form (absolute or relative) as is indicated here. Links are
3173 classified as "hard" or "symbolic" depending on the preferred type of
3174 link; if possible, the indicated type of link should be used.
3179 These links should exist on all systems:
3181 /dev/fd /proc/self/fd symbolic File descriptors
3182 /dev/stdin fd/0 symbolic stdin file descriptor
3183 /dev/stdout fd/1 symbolic stdout file descriptor
3184 /dev/stderr fd/2 symbolic stderr file descriptor
3185 /dev/nfsd socksys symbolic Required by iBCS-2
3186 /dev/X0R null symbolic Required by iBCS-2
3188 Note: /dev/X0R is <letter X>-<digit 0>-<letter R>.
3192 It is recommended that these links exist on all systems:
3194 /dev/core /proc/kcore symbolic Backward compatibility
3195 /dev/ramdisk ram0 symbolic Backward compatibility
3196 /dev/ftape qft0 symbolic Backward compatibility
3197 /dev/bttv0 video0 symbolic Backward compatibility
3198 /dev/radio radio0 symbolic Backward compatibility
3199 /dev/i2o* /dev/i2o/* symbolic Backward compatibility
3200 /dev/scd? sr? hard Alternate SCSI CD-ROM name
3202 Locally defined links
3204 The following links may be established locally to conform to the
3205 configuration of the system. This is merely a tabulation of existing
3206 practice, and does not constitute a recommendation. However, if they
3207 exist, they should have the following uses.
3209 /dev/mouse mouse port symbolic Current mouse device
3210 /dev/tape tape device symbolic Current tape device
3211 /dev/cdrom CD-ROM device symbolic Current CD-ROM device
3212 /dev/cdwriter CD-writer symbolic Current CD-writer device
3213 /dev/scanner scanner symbolic Current scanner device
3214 /dev/modem modem port symbolic Current dialout device
3215 /dev/root root device symbolic Current root filesystem
3216 /dev/swap swap device symbolic Current swap device
3218 /dev/modem should not be used for a modem which supports dialin as
3219 well as dialout, as it tends to cause lock file problems. If it
3220 exists, /dev/modem should point to the appropriate primary TTY device
3221 (the use of the alternate callout devices is deprecated).
3223 For SCSI devices, /dev/tape and /dev/cdrom should point to the
3224 ``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas
3225 /dev/cdwriter and /dev/scanner should point to the appropriate generic
3226 SCSI devices (/dev/sg*).
3228 /dev/mouse may point to a primary serial TTY device, a hardware mouse
3229 device, or a socket for a mouse driver program (e.g. /dev/gpmdata).
3233 Non-transient sockets and named pipes may exist in /dev. Common entries are:
3235 /dev/printer socket lpd local socket
3236 /dev/log socket syslog local socket
3237 /dev/gpmdata socket gpm mouse multiplexer
3241 The following names are reserved for mounting special filesystems
3242 under /dev. These special filesystems provide kernel interfaces that
3243 cannot be provided with standard device nodes.
3245 /dev/pts devpts PTY slave filesystem
3246 /dev/shm tmpfs POSIX shared memory maintenance access
3248 **** TERMINAL DEVICES
3250 Terminal, or TTY devices are a special class of character devices. A
3251 terminal device is any device that could act as a controlling terminal
3252 for a session; this includes virtual consoles, serial ports, and
3253 pseudoterminals (PTYs).
3255 All terminal devices share a common set of capabilities known as line
3256 disciplines; these include the common terminal line discipline as well
3257 as SLIP and PPP modes.
3259 All terminal devices are named similarly; this section explains the
3260 naming and use of the various types of TTYs. Note that the naming
3261 conventions include several historical warts; some of these are
3262 Linux-specific, some were inherited from other systems, and some
3263 reflect Linux outgrowing a borrowed convention.
3265 A hash mark (#) in a device name is used here to indicate a decimal
3266 number without leading zeroes.
3268 Virtual consoles and the console device
3270 Virtual consoles are full-screen terminal displays on the system video
3271 monitor. Virtual consoles are named /dev/tty#, with numbering
3272 starting at /dev/tty1; /dev/tty0 is the current virtual console.
3273 /dev/tty0 is the device that should be used to access the system video
3274 card on those architectures for which the frame buffer devices
3275 (/dev/fb*) are not applicable. Do not use /dev/console
3278 The console device, /dev/console, is the device to which system
3279 messages should be sent, and on which logins should be permitted in
3280 single-user mode. Starting with Linux 2.1.71, /dev/console is managed
3281 by the kernel; for previous versions it should be a symbolic link to
3282 either /dev/tty0, a specific virtual console such as /dev/tty1, or to
3283 a serial port primary (tty*, not cu*) device, depending on the
3284 configuration of the system.
3288 Serial ports are RS-232 serial ports and any device which simulates
3289 one, either in hardware (such as internal modems) or in software (such
3290 as the ISDN driver.) Under Linux, each serial ports has two device
3291 names, the primary or callin device and the alternate or callout one.
3292 Each kind of device is indicated by a different letter. For any
3293 letter X, the names of the devices are /dev/ttyX# and /dev/cux#,
3294 respectively; for historical reasons, /dev/ttyS# and /dev/ttyC#
3295 correspond to /dev/cua# and /dev/cub#. In the future, it should be
3296 expected that multiple letters will be used; all letters will be upper
3297 case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the
3298 "cu" device (e.g. /dev/cudp#).
3300 The names /dev/ttyQ# and /dev/cuq# are reserved for local use.
3302 The alternate devices provide for kernel-based exclusion and somewhat
3303 different defaults than the primary devices. Their main purpose is to
3304 allow the use of serial ports with programs with no inherent or broken
3305 support for serial ports. Their use is deprecated, and they may be
3306 removed from a future version of Linux.
3308 Arbitration of serial ports is provided by the use of lock files with
3309 the names /var/lock/LCK..ttyX#. The contents of the lock file should
3310 be the PID of the locking process as an ASCII number.
3312 It is common practice to install links such as /dev/modem
3313 which point to serial ports. In order to ensure proper locking in the
3314 presence of these links, it is recommended that software chase
3315 symlinks and lock all possible names; additionally, it is recommended
3316 that a lock file be installed with the corresponding alternate
3317 device. In order to avoid deadlocks, it is recommended that the locks
3318 are acquired in the following order, and released in the reverse:
3320 1. The symbolic link name, if any (/var/lock/LCK..modem)
3321 2. The "tty" name (/var/lock/LCK..ttyS2)
3322 3. The alternate device name (/var/lock/LCK..cua2)
3324 In the case of nested symbolic links, the lock files should be
3325 installed in the order the symlinks are resolved.
3327 Under no circumstances should an application hold a lock while waiting
3328 for another to be released. In addition, applications which attempt
3329 to create lock files for the corresponding alternate device names
3330 should take into account the possibility of being used on a non-serial
3331 port TTY, for which no alternate device would exist.
3333 Pseudoterminals (PTYs)
3335 Pseudoterminals, or PTYs, are used to create login sessions or provide
3336 other capabilities requiring a TTY line discipline (including SLIP or
3337 PPP capability) to arbitrary data-generation processes. Each PTY has
3338 a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named
3339 /dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by
3340 allowing each master side to be opened only once.
3342 Once the master side has been opened, the corresponding slave device
3343 can be used in the same manner as any TTY device. The master and
3344 slave devices are connected by the kernel, generating the equivalent
3345 of a bidirectional pipe with TTY capabilities.
3347 Recent versions of the Linux kernels and GNU libc contain support for
3348 the System V/Unix98 naming scheme for PTYs, which assigns a common
3349 device, /dev/ptmx, to all the masters (opening it will automatically
3350 give you a previously unassigned PTY) and a subdirectory, /dev/pts,
3351 for the slaves; the slaves are named with decimal integers (/dev/pts/#
3352 in our notation). This removes the problem of exhausting the
3353 namespace and enables the kernel to automatically create the device
3354 nodes for the slaves on demand using the "devpts" filesystem.
projects / deliverable / linux.git / blob