| blob | 8f1e57f10e4e3d39d84cb70cbf85c58bd2c09dad |
2 LINUX ALLOCATED DEVICES
3 Maintained by H. Peter Anvin <device@lanana.org>
5 Last revised: 3 June 2001
7 This list is the Linux Device List, the official registry of allocated
8 device numbers and /dev directory nodes for the Linux operating
9 system.
11 The latest version of this list is available from
12 http://www.lanana.org/docs/device-list/ or
13 ftp://ftp.kernel.org/pub/linux/docs/device-list/. This version may be
14 newer than the one distributed with the Linux kernel.
16 The LaTeX version of this document is no longer maintained.
18 This document is included by reference into the Filesystem Hierarchy
19 Standard (FHS). The FHS is available from http://www.pathname.com/fhs/.
21 Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga
22 platform only. Allocations marked (68k/Atari) apply to Linux/68k on
23 the Atari platform only.
25 The symbol {2.6} means the allocation is obsolete and scheduled for
26 removal once kernel version 2.6 (or equivalent) is released.
28 This document is in the public domain. The author requests, however,
29 that semantically altered versions are not distributed without
30 permission of the author, assuming the author can be contacted without
31 an unreasonable effort.
33 In particular, please don't sent patches for this list to Linus, at
34 least not without contacting me first.
36 I do not have any information about these devices beyond what appears
37 on this list. Any such information requests will be deleted without
38 reply.
41 **** DEVICE DRIVERS AUTHORS PLEASE READ THIS ****
43 THE DEVICE REGISTRY IS OFFICIALLY FROZEN FOR LINUS TORVALDS' KERNEL
44 TREE. At Linus' request, no more allocations will be made official
45 for Linus' kernel tree; the 3 June 2001 version of this list is the
46 official final version of this registry. At Alan Cox' request,
47 however, the registry will continue to be maintained for the -ac
48 series of kernels, and registrations will be accepted.
50 To have a major number allocated, or a minor number in situations
51 where that applies (e.g. busmice), please contact me with the
52 appropriate device information. Also, if you have additional
53 information regarding any of the devices listed below, or if I have
54 made a mistake, I would greatly appreciate a note.
56 I do, however, make a few requests about the nature of your report.
57 This is necessary for me to be able to keep this list up to date and
58 correct in a timely manner. First of all, *please* send it to the
59 correct address... <device@lanana.org>. I receive hundreds of email
60 messages a day, so mail sent to other addresses may very well get lost
61 in the avalanche. Please put in a descriptive subject, so I can find
62 your mail again should I need to. Too many people send me email
63 saying just "device number request" in the subject.
65 Second, please include a description of the device *in the same format
66 as this list*. The reason for this is that it is the only way I have
67 found to ensure I have all the requisite information to publish your
68 device and avoid conflicts.
70 Third, please don't assume that the distributed version of the list is
71 up to date. Due to the number of registrations I have to maintain it
72 in "batch mode", so there is likely additional registrations that
73 haven't been listed yet.
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
89 1 char Memory devices
90 1 = /dev/mem Physical memory access
91 2 = /dev/kmem Kernel virtual memory access
92 3 = /dev/null Null device
93 4 = /dev/port I/O port access
94 5 = /dev/zero Null byte source
95 6 = /dev/core OBSOLETE - replaced by /proc/kcore
96 7 = /dev/full Returns ENOSPC on write
97 8 = /dev/random Nondeterministic random number gen.
98 9 = /dev/urandom Faster, less secure random number gen.
99 10 = /dev/aio Asyncronous I/O notification interface
100 11 = /dev/kmsg Writes to this come out as printk's
101 block RAM disk
102 0 = /dev/ram0 First RAM disk
103 1 = /dev/ram1 Second RAM disk
104 ...
105 250 = /dev/initrd Initial RAM disk {2.6}
107 Older kernels had /dev/ramdisk (1, 1) here.
108 /dev/initrd refers to a RAM disk which was preloaded
109 by the boot loader; newer kernels use /dev/ram0 for
110 the initrd.
112 2 char Pseudo-TTY masters
113 0 = /dev/ptyp0 First PTY master
114 1 = /dev/ptyp1 Second PTY master
115 ...
116 255 = /dev/ptyef 256th PTY master
118 Pseudo-tty's are named as follows:
119 * Masters are "pty", slaves are "tty";
120 * the fourth letter is one of pqrstuvwxyzabcde indicating
121 the 1st through 16th series of 16 pseudo-ttys each, and
122 * the fifth letter is one of 0123456789abcdef indicating
123 the position within the series.
125 These are the old-style (BSD) PTY devices; Unix98
126 devices are on major 128 and above and use the PTY
127 master multiplex (/dev/ptmx) to acquire a PTY on
128 demand.
130 block Floppy disks
131 0 = /dev/fd0 Controller 0, drive 0, autodetect
132 1 = /dev/fd1 Controller 0, drive 1, autodetect
133 2 = /dev/fd2 Controller 0, drive 2, autodetect
134 3 = /dev/fd3 Controller 0, drive 3, autodetect
135 128 = /dev/fd4 Controller 1, drive 0, autodetect
136 129 = /dev/fd5 Controller 1, drive 1, autodetect
137 130 = /dev/fd6 Controller 1, drive 2, autodetect
138 131 = /dev/fd7 Controller 1, drive 3, autodetect
140 To specify format, add to the autodetect device number:
141 0 = /dev/fd? Autodetect format
142 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
143 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
144 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
145 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
146 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
147 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
148 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
149 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
150 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
151 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
152 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
154 12 = /dev/fd?u360 3.5" 360K Double Density(2)
155 16 = /dev/fd?u720 3.5" 720K Double Density(1)
156 120 = /dev/fd?u800 3.5" 800K Double Density(2)
157 52 = /dev/fd?u820 3.5" 820K Double Density
158 68 = /dev/fd?u830 3.5" 830K Double Density
159 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
160 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
161 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
162 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
163 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
164 60 = /dev/fd?u1722 3.5" 1722K High Density
165 76 = /dev/fd?u1743 3.5" 1743K High Density
166 96 = /dev/fd?u1760 3.5" 1760K High Density
167 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
168 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
169 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
170 104 = /dev/fd?u3200 3.5" 3200K Extra Density
171 108 = /dev/fd?u3520 3.5" 3520K Extra Density
172 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
174 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
176 (1) Autodetectable format
177 (2) Autodetectable format in a Double Density (720K) drive only
178 (3) Autodetectable format in a High Density (1440K) drive only
180 NOTE: The letter in the device name (d, q, h or u)
181 signifies the type of drive: 5.25" Double Density (d),
182 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
183 (any model, u). The use of the capital letters D, H
184 and E for the 3.5" models have been deprecated, since
185 the drive type is insignificant for these devices.
187 3 char Pseudo-TTY slaves
188 0 = /dev/ttyp0 First PTY slave
189 1 = /dev/ttyp1 Second PTY slave
190 ...
191 255 = /dev/ttyef 256th PTY slave
193 These are the old-style (BSD) PTY devices; Unix98
194 devices are on major 136 and above.
196 block First MFM, RLL and IDE hard disk/CD-ROM interface
197 0 = /dev/hda Master: whole disk (or CD-ROM)
198 64 = /dev/hdb Slave: whole disk (or CD-ROM)
200 For partitions, add to the whole disk device number:
201 0 = /dev/hd? Whole disk
202 1 = /dev/hd?1 First partition
203 2 = /dev/hd?2 Second partition
204 ...
205 63 = /dev/hd?63 63rd partition
207 For Linux/i386, partitions 1-4 are the primary
208 partitions, and 5 and above are logical partitions.
209 Other versions of Linux use partitioning schemes
210 appropriate to their respective architectures.
212 4 char TTY devices
213 0 = /dev/tty0 Current virtual console
215 1 = /dev/tty1 First virtual console
216 ...
217 63 = /dev/tty63 63rd virtual console
218 64 = /dev/ttyS0 First UART serial port
219 ...
220 255 = /dev/ttyS191 192nd UART serial port
222 UART serial ports refer to 8250/16450/16550 series devices.
224 Older versions of the Linux kernel used this major
225 number for BSD PTY devices. As of Linux 2.1.115, this
226 is no longer supported. Use major numbers 2 and 3.
228 5 char Alternate TTY devices
229 0 = /dev/tty Current TTY device
230 1 = /dev/console System console
231 2 = /dev/ptmx PTY master multiplex
232 64 = /dev/cua0 Callout device for ttyS0
233 ...
234 255 = /dev/cua191 Callout device for ttyS191
236 (5,1) is /dev/console starting with Linux 2.1.71. See
237 the section on terminal devices for more information
238 on /dev/console.
240 6 char Parallel printer devices
241 0 = /dev/lp0 Parallel printer on parport0
242 1 = /dev/lp1 Parallel printer on parport1
243 ...
245 Current Linux kernels no longer have a fixed mapping
246 between parallel ports and I/O addresses. Instead,
247 they are redirected through the parport multiplex layer.
249 7 char Virtual console capture devices
250 0 = /dev/vcs Current vc text contents
251 1 = /dev/vcs1 tty1 text contents
252 ...
253 63 = /dev/vcs63 tty63 text contents
254 128 = /dev/vcsa Current vc text/attribute contents
255 129 = /dev/vcsa1 tty1 text/attribute contents
256 ...
257 191 = /dev/vcsa63 tty63 text/attribute contents
259 NOTE: These devices permit both read and write access.
261 block Loopback devices
262 0 = /dev/loop0 First loopback device
263 1 = /dev/loop1 Second loopback device
264 ...
266 The loopback devices are used to mount filesystems not
267 associated with block devices. The binding to the
268 loopback devices is handled by mount(8) or losetup(8).
270 8 block SCSI disk devices (0-15)
271 0 = /dev/sda First SCSI disk whole disk
272 16 = /dev/sdb Second SCSI disk whole disk
273 32 = /dev/sdc Third SCSI disk whole disk
274 ...
275 240 = /dev/sdp Sixteenth SCSI disk whole disk
277 Partitions are handled in the same way as for IDE
278 disks (see major number 3) except that the limit on
279 partitions is 15.
281 9 char SCSI tape devices
282 0 = /dev/st0 First SCSI tape, mode 0
283 1 = /dev/st1 Second SCSI tape, mode 0
284 ...
285 32 = /dev/st0l First SCSI tape, mode 1
286 33 = /dev/st1l Second SCSI tape, mode 1
287 ...
288 64 = /dev/st0m First SCSI tape, mode 2
289 65 = /dev/st1m Second SCSI tape, mode 2
290 ...
291 96 = /dev/st0a First SCSI tape, mode 3
292 97 = /dev/st1a Second SCSI tape, mode 3
293 ...
294 128 = /dev/nst0 First SCSI tape, mode 0, no rewind
295 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
296 ...
297 160 = /dev/nst0l First SCSI tape, mode 1, no rewind
298 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
299 ...
300 192 = /dev/nst0m First SCSI tape, mode 2, no rewind
301 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
302 ...
303 224 = /dev/nst0a First SCSI tape, mode 3, no rewind
304 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
305 ...
307 "No rewind" refers to the omission of the default
308 automatic rewind on device close. The MTREW or MTOFFL
309 ioctl()'s can be used to rewind the tape regardless of
310 the device used to access it.
312 block Metadisk (RAID) devices
313 0 = /dev/md0 First metadisk group
314 1 = /dev/md1 Second metadisk group
315 ...
317 The metadisk driver is used to span a
318 filesystem across multiple physical disks.
320 10 char Non-serial mice, misc features
321 0 = /dev/logibm Logitech bus mouse
322 1 = /dev/psaux PS/2-style mouse port
323 2 = /dev/inportbm Microsoft Inport bus mouse
324 3 = /dev/atibm ATI XL bus mouse
325 4 = /dev/jbm J-mouse
326 4 = /dev/amigamouse Amiga mouse (68k/Amiga)
327 5 = /dev/atarimouse Atari mouse
328 6 = /dev/sunmouse Sun mouse
329 7 = /dev/amigamouse1 Second Amiga mouse
330 8 = /dev/smouse Simple serial mouse driver
331 9 = /dev/pc110pad IBM PC-110 digitizer pad
332 10 = /dev/adbmouse Apple Desktop Bus mouse
333 11 = /dev/vrtpanel Vr41xx embedded touch panel
334 13 = /dev/vpcmouse Connectix Virtual PC Mouse
335 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
336 15 = /dev/touchscreen/mk712 MK712 touchscreen
337 128 = /dev/beep Fancy beep device
338 129 = /dev/modreq Kernel module load request {2.6}
339 130 = /dev/watchdog Watchdog timer port
340 131 = /dev/temperature Machine internal temperature
341 132 = /dev/hwtrap Hardware fault trap
342 133 = /dev/exttrp External device trap
343 134 = /dev/apm_bios Advanced Power Management BIOS
344 135 = /dev/rtc Real Time Clock
345 139 = /dev/openprom SPARC OpenBoot PROM
346 140 = /dev/relay8 Berkshire Products Octal relay card
347 141 = /dev/relay16 Berkshire Products ISO-16 relay card
348 142 = /dev/msr x86 model-specific registers {2.6}
349 143 = /dev/pciconf PCI configuration space
350 144 = /dev/nvram Non-volatile configuration RAM
351 145 = /dev/hfmodem Soundcard shortwave modem control {2.6}
352 146 = /dev/graphics Linux/SGI graphics device
353 147 = /dev/opengl Linux/SGI OpenGL pipe
354 148 = /dev/gfx Linux/SGI graphics effects device
355 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
356 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
357 151 = /dev/led Front panel LEDs
358 153 = /dev/mergemem Memory merge device
359 154 = /dev/pmu Macintosh PowerBook power manager
360 155 = /dev/isictl MultiTech ISICom serial control
361 156 = /dev/lcd Front panel LCD display
362 157 = /dev/ac Applicom Intl Profibus card
363 158 = /dev/nwbutton Netwinder external button
364 159 = /dev/nwdebug Netwinder debug interface
365 160 = /dev/nwflash Netwinder flash memory
366 161 = /dev/userdma User-space DMA access
367 162 = /dev/smbus System Management Bus
368 163 = /dev/lik Logitech Internet Keyboard
369 164 = /dev/ipmo Intel Intelligent Platform Management
370 165 = /dev/vmmon VMWare virtual machine monitor
371 166 = /dev/i2o/ctl I2O configuration manager
372 167 = /dev/specialix_sxctl Specialix serial control
373 168 = /dev/tcldrv Technology Concepts serial control
374 169 = /dev/specialix_rioctl Specialix RIO serial control
375 170 = /dev/smapi IBM Thinkpad SMAPI
376 171 = /dev/srripc QNX4 API IPC manager
377 172 = /dev/usemaclone Semaphore clone device
378 173 = /dev/ipmikcs Intelligent Platform Management
379 174 = /dev/uctrl SPARCbook 3 microcontroller
380 175 = /dev/agpgart AGP Graphics Address Remapping Table
381 176 = /dev/gtrsc Gorgy Timing radio clock
382 177 = /dev/cbm Serial CBM bus
383 178 = /dev/jsflash JavaStation OS flash SIMM
384 179 = /dev/xsvc High-speed shared-mem/semaphore service
385 180 = /dev/vrbuttons Vr41xx button input device
386 181 = /dev/toshiba Toshiba laptop SMM support
387 182 = /dev/perfctr Performance-monitoring counters
388 183 = /dev/intel_rng Intel i8x0 random number generator
389 184 = /dev/cpu/microcode CPU microcode update interface
390 186 = /dev/atomicps Atomic shapshot of process state data
391 187 = /dev/irnet IrNET device
392 188 = /dev/smbusbios SMBus BIOS
393 189 = /dev/ussp_ctl User space serial port control
394 190 = /dev/crash Mission Critical Linux crash dump facility
395 191 = /dev/pcl181 <information missing>
396 192 = /dev/nas_xbus NAS xbus LCD/buttons access
397 193 = /dev/d7s SPARC 7-segment display
398 194 = /dev/zkshim Zero-Knowledge network shim control
399 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
400 198 = /dev/sexec Signed executable interface
401 199 = /dev/scanners/cuecat :CueCat barcode scanner
402 200 = /dev/net/tun TAP/TUN network device
403 201 = /dev/button/gulpb Transmeta GULP-B buttons
404 204 = /dev/video/em8300 EM8300 DVD decoder control
405 205 = /dev/video/em8300_mv EM8300 DVD decoder video
406 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
407 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
408 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
409 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
410 210 = /dev/impi/bt IMPI coprocessor block transfer
411 211 = /dev/impi/smic IMPI coprocessor stream interface
412 212 = /dev/watchdogs/0 First watchdog device
413 213 = /dev/watchdogs/1 Second watchdog device
414 214 = /dev/watchdogs/2 Third watchdog device
415 215 = /dev/watchdogs/3 Fourth watchdog device
416 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel
417 217 = /dev/ni/natmotn National Instruments Motion
418 218 = /dev/kchuid Inter-process chuid control
419 219 = /dev/modems/mwave MWave modem firmware upload
420 220 = /dev/mptctl Message passing technology (MPT) control
421 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver
422 222 = /dev/mvista/hasi Montavista PICMG high availability
423 223 = /dev/input/uinput User level driver support for input
424 240-255 Reserved for local use
426 11 char Raw keyboard device
427 0 = /dev/kbd Raw keyboard device
429 The raw keyboard device is used on Linux/SPARC only.
431 block SCSI CD-ROM devices
432 0 = /dev/sr0 First SCSI CD-ROM
433 1 = /dev/sr1 Second SCSI CD-ROM
434 ...
436 The prefix /dev/scd instead of /dev/sr has been used
437 as well, and might make more sense.
439 12 char QIC-02 tape
440 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
441 3 = /dev/tpqic11 QIC-11, rewind-on-close
442 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
443 5 = /dev/tpqic24 QIC-24, rewind-on-close
444 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
445 7 = /dev/tpqic120 QIC-120, rewind-on-close
446 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
447 9 = /dev/tpqic150 QIC-150, rewind-on-close
449 The device names specified are proposed -- if there
450 are "standard" names for these devices, please let me know.
452 block MSCDEX CD-ROM callback support {2.6}
453 0 = /dev/dos_cd0 First MSCDEX CD-ROM
454 1 = /dev/dos_cd1 Second MSCDEX CD-ROM
455 ...
457 13 char Input core
458 0 = /dev/input/js0 First joystick
459 1 = /dev/input/js1 Second joystick
460 ...
461 32 = /dev/input/mouse0 First mouse
462 33 = /dev/input/mouse1 Second mouse
463 ...
464 63 = /dev/input/mice Unified mouse
465 64 = /dev/input/event0 First event queue
466 65 = /dev/input/event1 Second event queue
467 ...
469 Each device type has 5 bits (32 minors).
471 block 8-bit MFM/RLL/IDE controller
472 0 = /dev/xda First XT disk whole disk
473 64 = /dev/xdb Second XT disk whole disk
475 Partitions are handled in the same way as IDE disks
476 (see major number 3).
478 14 char Open Sound System (OSS)
479 0 = /dev/mixer Mixer control
480 1 = /dev/sequencer Audio sequencer
481 2 = /dev/midi00 First MIDI port
482 3 = /dev/dsp Digital audio
483 4 = /dev/audio Sun-compatible digital audio
484 6 = /dev/sndstat Sound card status information {2.6}
485 7 = /dev/audioctl SPARC audio control device
486 8 = /dev/sequencer2 Sequencer -- alternate device
487 16 = /dev/mixer1 Second soundcard mixer control
488 17 = /dev/patmgr0 Sequencer patch manager
489 18 = /dev/midi01 Second MIDI port
490 19 = /dev/dsp1 Second soundcard digital audio
491 20 = /dev/audio1 Second soundcard Sun digital audio
492 33 = /dev/patmgr1 Sequencer patch manager
493 34 = /dev/midi02 Third MIDI port
494 50 = /dev/midi03 Fourth MIDI port
495 block BIOS harddrive callback support {2.6}
496 0 = /dev/dos_hda First BIOS harddrive whole disk
497 64 = /dev/dos_hdb Second BIOS harddrive whole disk
498 128 = /dev/dos_hdc Third BIOS harddrive whole disk
499 192 = /dev/dos_hdd Fourth BIOS harddrive whole disk
501 Partitions are handled in the same way as IDE disks
502 (see major number 3).
504 15 char Joystick
505 0 = /dev/js0 First analog joystick
506 1 = /dev/js1 Second analog joystick
507 ...
508 128 = /dev/djs0 First digital joystick
509 129 = /dev/djs1 Second digital joystick
510 ...
511 block Sony CDU-31A/CDU-33A CD-ROM
512 0 = /dev/sonycd Sony CDU-31a CD-ROM
514 16 char Non-SCSI scanners
515 0 = /dev/gs4500 Genius 4500 handheld scanner
516 block GoldStar CD-ROM
517 0 = /dev/gscd GoldStar CD-ROM
519 17 char Chase serial card
520 0 = /dev/ttyH0 First Chase port
521 1 = /dev/ttyH1 Second Chase port
522 ...
523 block Optics Storage CD-ROM
524 0 = /dev/optcd Optics Storage CD-ROM
526 18 char Chase serial card - alternate devices
527 0 = /dev/cuh0 Callout device for ttyH0
528 1 = /dev/cuh1 Callout device for ttyH1
529 ...
530 block Sanyo CD-ROM
531 0 = /dev/sjcd Sanyo CD-ROM
533 19 char Cyclades serial card
534 0 = /dev/ttyC0 First Cyclades port
535 ...
536 31 = /dev/ttyC31 32nd Cyclades port
537 block "Double" compressed disk
538 0 = /dev/double0 First compressed disk
539 ...
540 7 = /dev/double7 Eighth compressed disk
541 128 = /dev/cdouble0 Mirror of first compressed disk
542 ...
543 135 = /dev/cdouble7 Mirror of eighth compressed disk
545 See the Double documentation for the meaning of the
546 mirror devices.
548 20 char Cyclades serial card - alternate devices
549 0 = /dev/cub0 Callout device for ttyC0
550 ...
551 31 = /dev/cub31 Callout device for ttyC31
552 block Hitachi CD-ROM (under development)
553 0 = /dev/hitcd Hitachi CD-ROM
555 21 char Generic SCSI access
556 0 = /dev/sg0 First generic SCSI device
557 1 = /dev/sg1 Second generic SCSI device
558 ...
560 Most distributions name these /dev/sga, /dev/sgb...;
561 this sets an unnecessary limit of 26 SCSI devices in
562 the system and is counter to standard Linux
563 device-naming practice.
565 block Acorn MFM hard drive interface
566 0 = /dev/mfma First MFM drive whole disk
567 64 = /dev/mfmb Second MFM drive whole disk
569 This device is used on the ARM-based Acorn RiscPC.
570 Partitions are handled the same way as for IDE disks
571 (see major number 3).
573 22 char Digiboard serial card
574 0 = /dev/ttyD0 First Digiboard port
575 1 = /dev/ttyD1 Second Digiboard port
576 ...
577 block Second IDE hard disk/CD-ROM interface
578 0 = /dev/hdc Master: whole disk (or CD-ROM)
579 64 = /dev/hdd Slave: whole disk (or CD-ROM)
581 Partitions are handled the same way as for the first
582 interface (see major number 3).
584 23 char Digiboard serial card - alternate devices
585 0 = /dev/cud0 Callout device for ttyD0
586 1 = /dev/cud1 Callout device for ttyD1
587 ...
588 block Mitsumi proprietary CD-ROM
589 0 = /dev/mcd Mitsumi CD-ROM
591 24 char Stallion serial card
592 0 = /dev/ttyE0 Stallion port 0 card 0
593 1 = /dev/ttyE1 Stallion port 1 card 0
594 ...
595 64 = /dev/ttyE64 Stallion port 0 card 1
596 65 = /dev/ttyE65 Stallion port 1 card 1
597 ...
598 128 = /dev/ttyE128 Stallion port 0 card 2
599 129 = /dev/ttyE129 Stallion port 1 card 2
600 ...
601 192 = /dev/ttyE192 Stallion port 0 card 3
602 193 = /dev/ttyE193 Stallion port 1 card 3
603 ...
604 block Sony CDU-535 CD-ROM
605 0 = /dev/cdu535 Sony CDU-535 CD-ROM
607 25 char Stallion serial card - alternate devices
608 0 = /dev/cue0 Callout device for ttyE0
609 1 = /dev/cue1 Callout device for ttyE1
610 ...
611 64 = /dev/cue64 Callout device for ttyE64
612 65 = /dev/cue65 Callout device for ttyE65
613 ...
614 128 = /dev/cue128 Callout device for ttyE128
615 129 = /dev/cue129 Callout device for ttyE129
616 ...
617 192 = /dev/cue192 Callout device for ttyE192
618 193 = /dev/cue193 Callout device for ttyE193
619 ...
620 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
621 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
622 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
623 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
624 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
626 26 char Quanta WinVision frame grabber {2.6}
627 0 = /dev/wvisfgrab Quanta WinVision frame grabber
628 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
629 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
630 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
631 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
632 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
634 27 char QIC-117 tape
635 0 = /dev/qft0 Unit 0, rewind-on-close
636 1 = /dev/qft1 Unit 1, rewind-on-close
637 2 = /dev/qft2 Unit 2, rewind-on-close
638 3 = /dev/qft3 Unit 3, rewind-on-close
639 4 = /dev/nqft0 Unit 0, no rewind-on-close
640 5 = /dev/nqft1 Unit 1, no rewind-on-close
641 6 = /dev/nqft2 Unit 2, no rewind-on-close
642 7 = /dev/nqft3 Unit 3, no rewind-on-close
643 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
644 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
645 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
646 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
647 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
648 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
649 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
650 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
651 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
652 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
653 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
654 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
655 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
656 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
657 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
658 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
659 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
660 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
661 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
662 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
663 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
665 28 char Stallion serial card - card programming
666 0 = /dev/staliomem0 First Stallion card I/O memory
667 1 = /dev/staliomem1 Second Stallion card I/O memory
668 2 = /dev/staliomem2 Third Stallion card I/O memory
669 3 = /dev/staliomem3 Fourth Stallion card I/O memory
670 char Atari SLM ACSI laser printer (68k/Atari)
671 0 = /dev/slm0 First SLM laser printer
672 1 = /dev/slm1 Second SLM laser printer
673 ...
674 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
675 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
676 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
677 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
678 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
679 block ACSI disk (68k/Atari)
680 0 = /dev/ada First ACSI disk whole disk
681 16 = /dev/adb Second ACSI disk whole disk
682 32 = /dev/adc Third ACSI disk whole disk
683 ...
684 240 = /dev/adp 16th ACSI disk whole disk
686 Partitions are handled in the same way as for IDE
687 disks (see major number 3) except that the limit on
688 partitions is 15, like SCSI.
690 29 char Universal frame buffer
691 0 = /dev/fb0 First frame buffer
692 1 = /dev/fb1 Second frame buffer
693 ...
694 31 = /dev/fb31 32nd frame buffer
696 For backwards compatibility {2.6} the following
697 progression is also handled by current kernels:
698 0 = /dev/fb0
699 32 = /dev/fb1
700 ...
701 224 = /dev/fb7
703 block Aztech/Orchid/Okano/Wearnes CD-ROM
704 0 = /dev/aztcd Aztech CD-ROM
706 30 char iBCS-2 compatibility devices
707 0 = /dev/socksys Socket access
708 1 = /dev/spx SVR3 local X interface
709 2 = /dev/inet/arp Network access
710 2 = /dev/inet/icmp Network access
711 2 = /dev/inet/ip Network access
712 2 = /dev/inet/udp Network access
713 2 = /dev/inet/tcp Network access
715 Additionally, iBCS-2 requires /dev/nfsd to be a link
716 to /dev/socksys, and /dev/X0R to be a link to
717 /dev/null.
719 block Philips LMS CM-205 CD-ROM
720 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
722 /dev/lmscd is an older name for this device. This
723 driver does not work with the CM-205MS CD-ROM.
725 31 char MPU-401 MIDI
726 0 = /dev/mpu401data MPU-401 data port
727 1 = /dev/mpu401stat MPU-401 status port
728 block ROM/flash memory card
729 0 = /dev/rom0 First ROM card (rw)
730 ...
731 7 = /dev/rom7 Eighth ROM card (rw)
732 8 = /dev/rrom0 First ROM card (ro)
733 ...
734 15 = /dev/rrom7 Eighth ROM card (ro)
735 16 = /dev/flash0 First flash memory card (rw)
736 ...
737 23 = /dev/flash7 Eighth flash memory card (rw)
738 24 = /dev/rflash0 First flash memory card (ro)
739 ...
740 31 = /dev/rflash7 Eighth flash memory card (ro)
742 The read-write (rw) devices support back-caching
743 written data in RAM, as well as writing to flash RAM
744 devices. The read-only devices (ro) support reading
745 only.
747 32 char Specialix serial card
748 0 = /dev/ttyX0 First Specialix port
749 1 = /dev/ttyX1 Second Specialix port
750 ...
751 block Philips LMS CM-206 CD-ROM
752 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
754 33 char Specialix serial card - alternate devices
755 0 = /dev/cux0 Callout device for ttyX0
756 1 = /dev/cux1 Callout device for ttyX1
757 ...
758 block Third IDE hard disk/CD-ROM interface
759 0 = /dev/hde Master: whole disk (or CD-ROM)
760 64 = /dev/hdf Slave: whole disk (or CD-ROM)
762 Partitions are handled the same way as for the first
763 interface (see major number 3).
765 34 char Z8530 HDLC driver
766 0 = /dev/scc0 First Z8530, first port
767 1 = /dev/scc1 First Z8530, second port
768 2 = /dev/scc2 Second Z8530, first port
769 3 = /dev/scc3 Second Z8530, second port
770 ...
772 In a previous version these devices were named
773 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
774 on.
776 block Fourth IDE hard disk/CD-ROM interface
777 0 = /dev/hdg Master: whole disk (or CD-ROM)
778 64 = /dev/hdh Slave: whole disk (or CD-ROM)
780 Partitions are handled the same way as for the first
781 interface (see major number 3).
783 35 char tclmidi MIDI driver
784 0 = /dev/midi0 First MIDI port, kernel timed
785 1 = /dev/midi1 Second MIDI port, kernel timed
786 2 = /dev/midi2 Third MIDI port, kernel timed
787 3 = /dev/midi3 Fourth MIDI port, kernel timed
788 64 = /dev/rmidi0 First MIDI port, untimed
789 65 = /dev/rmidi1 Second MIDI port, untimed
790 66 = /dev/rmidi2 Third MIDI port, untimed
791 67 = /dev/rmidi3 Fourth MIDI port, untimed
792 128 = /dev/smpte0 First MIDI port, SMPTE timed
793 129 = /dev/smpte1 Second MIDI port, SMPTE timed
794 130 = /dev/smpte2 Third MIDI port, SMPTE timed
795 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
796 block Slow memory ramdisk
797 0 = /dev/slram Slow memory ramdisk
799 36 char Netlink support
800 0 = /dev/route Routing, device updates, kernel to user
801 1 = /dev/skip enSKIP security cache control
802 3 = /dev/fwmonitor Firewall packet copies
803 16 = /dev/tap0 First Ethertap device
804 ...
805 31 = /dev/tap15 16th Ethertap device
806 block MCA ESDI hard disk
807 0 = /dev/eda First ESDI disk whole disk
808 64 = /dev/edb Second ESDI disk whole disk
809 ...
811 Partitions are handled in the same way as IDE disks
812 (see major number 3).
814 37 char IDE tape
815 0 = /dev/ht0 First IDE tape
816 1 = /dev/ht1 Second IDE tape
817 ...
818 128 = /dev/nht0 First IDE tape, no rewind-on-close
819 129 = /dev/nht1 Second IDE tape, no rewind-on-close
820 ...
822 Currently, only one IDE tape drive is supported.
824 block Zorro II ramdisk
825 0 = /dev/z2ram Zorro II ramdisk
827 38 char Myricom PCI Myrinet board
828 0 = /dev/mlanai0 First Myrinet board
829 1 = /dev/mlanai1 Second Myrinet board
830 ...
832 This device is used for status query, board control
833 and "user level packet I/O." This board is also
834 accessible as a standard networking "eth" device.
836 block Reserved for Linux/AP+
838 39 char ML-16P experimental I/O board
839 0 = /dev/ml16pa-a0 First card, first analog channel
840 1 = /dev/ml16pa-a1 First card, second analog channel
841 ...
842 15 = /dev/ml16pa-a15 First card, 16th analog channel
843 16 = /dev/ml16pa-d First card, digital lines
844 17 = /dev/ml16pa-c0 First card, first counter/timer
845 18 = /dev/ml16pa-c1 First card, second counter/timer
846 19 = /dev/ml16pa-c2 First card, third counter/timer
847 32 = /dev/ml16pb-a0 Second card, first analog channel
848 33 = /dev/ml16pb-a1 Second card, second analog channel
849 ...
850 47 = /dev/ml16pb-a15 Second card, 16th analog channel
851 48 = /dev/ml16pb-d Second card, digital lines
852 49 = /dev/ml16pb-c0 Second card, first counter/timer
853 50 = /dev/ml16pb-c1 Second card, second counter/timer
854 51 = /dev/ml16pb-c2 Second card, third counter/timer
855 ...
856 block Reserved for Linux/AP+
858 40 char Matrox Meteor frame grabber {2.6}
859 0 = /dev/mmetfgrab Matrox Meteor frame grabber
860 block Syquest EZ135 parallel port removable drive
861 0 = /dev/eza Parallel EZ135 drive, whole disk
863 This device is obsolete and will be removed in a
864 future version of Linux. It has been replaced with
865 the parallel port IDE disk driver at major number 45.
866 Partitions are handled in the same way as IDE disks
867 (see major number 3).
869 41 char Yet Another Micro Monitor
870 0 = /dev/yamm Yet Another Micro Monitor
871 block MicroSolutions BackPack parallel port CD-ROM
872 0 = /dev/bpcd BackPack CD-ROM
874 This device is obsolete and will be removed in a
875 future version of Linux. It has been replaced with
876 the parallel port ATAPI CD-ROM driver at major number 46.
878 42 Demo/sample use
880 This number is intended for use in sample code, as
881 well as a general "example" device number. It
882 should never be used for a device driver that is being
883 distributed; either obtain an official number or use
884 the local/experimental range. The sudden addition or
885 removal of a driver with this number should not cause
886 ill effects to the system (bugs excepted.)
888 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
889 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
891 43 char isdn4linux virtual modem
892 0 = /dev/ttyI0 First virtual modem
893 ...
894 63 = /dev/ttyI63 64th virtual modem
895 block Network block devices
896 0 = /dev/nb0 First network block device
897 1 = /dev/nb1 Second network block device
898 ...
900 Network Block Device is somehow similar to loopback
901 devices: If you read from it, it sends packet accross
902 network asking server for data. If you write to it, it
903 sends packet telling server to write. It could be used
904 to mounting filesystems over the net, swapping over
905 the net, implementing block device in userland etc.
907 44 char isdn4linux virtual modem - alternate devices
908 0 = /dev/cui0 Callout device for ttyI0
909 ...
910 63 = /dev/cui63 Callout device for ttyI63
911 block Flash Translatio Layer (FTL) filesystems
912 0 = /dev/ftla FTL on first Memory Technology Device
913 16 = /dev/ftlb FTL on second Memory Technology Device
914 32 = /dev/ftlc FTL on third Memory Technology Device
915 ...
916 240 = /dev/ftlp FTL on 16th Memory Technology Device
918 Partitions are handled in the same way as for IDE
919 disks (see major number 3) expect that the partition
920 limit is 15 rather than 63 per disk (same as SCSI.)
922 45 char isdn4linux ISDN BRI driver
923 0 = /dev/isdn0 First virtual B channel raw data
924 ...
925 63 = /dev/isdn63 64th virtual B channel raw data
926 64 = /dev/isdnctrl0 First channel control/debug
927 ...
928 127 = /dev/isdnctrl63 64th channel control/debug
930 128 = /dev/ippp0 First SyncPPP device
931 ...
932 191 = /dev/ippp63 64th SyncPPP device
934 255 = /dev/isdninfo ISDN monitor interface
935 block Parallel port IDE disk devices
936 0 = /dev/pda First parallel port IDE disk
937 16 = /dev/pdb Second parallel port IDE disk
938 32 = /dev/pdc Third parallel port IDE disk
939 48 = /dev/pdd Fourth parallel port IDE disk
941 Partitions are handled in the same way as for IDE
942 disks (see major number 3) except that the partition
943 limit is 15 rather than 63 per disk.
945 46 char Comtrol Rocketport serial card
946 0 = /dev/ttyR0 First Rocketport port
947 1 = /dev/ttyR1 Second Rocketport port
948 ...
949 block Parallel port ATAPI CD-ROM devices
950 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
951 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
952 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
953 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
955 47 char Comtrol Rocketport serial card - alternate devices
956 0 = /dev/cur0 Callout device for ttyR0
957 1 = /dev/cur1 Callout device for ttyR1
958 ...
959 block Parallel port ATAPI disk devices
960 0 = /dev/pf0 First parallel port ATAPI disk
961 1 = /dev/pf1 Second parallel port ATAPI disk
962 2 = /dev/pf2 Third parallel port ATAPI disk
963 3 = /dev/pf3 Fourth parallel port ATAPI disk
965 This driver is intended for floppy disks and similar
966 devices and hence does not support partitioning.
968 48 char SDL RISCom serial card
969 0 = /dev/ttyL0 First RISCom port
970 1 = /dev/ttyL1 Second RISCom port
971 ...
972 block Mylex DAC960 PCI RAID controller; first controller
973 0 = /dev/rd/c0d0 First disk, whole disk
974 8 = /dev/rd/c0d1 Second disk, whole disk
975 ...
976 248 = /dev/rd/c0d31 32nd disk, whole disk
978 For partitions add:
979 0 = /dev/rd/c?d? Whole disk
980 1 = /dev/rd/c?d?p1 First partition
981 ...
982 7 = /dev/rd/c?d?p7 Seventh partition
984 49 char SDL RISCom serial card - alternate devices
985 0 = /dev/cul0 Callout device for ttyL0
986 1 = /dev/cul1 Callout device for ttyL1
987 ...
988 block Mylex DAC960 PCI RAID controller; second controller
989 0 = /dev/rd/c1d0 First disk, whole disk
990 8 = /dev/rd/c1d1 Second disk, whole disk
991 ...
992 248 = /dev/rd/c1d31 32nd disk, whole disk
994 Partitions are handled as for major 48.
996 50 char Reserved for GLINT
998 block Mylex DAC960 PCI RAID controller; third controller
999 0 = /dev/rd/c2d0 First disk, whole disk
1000 8 = /dev/rd/c2d1 Second disk, whole disk
1001 ...
1002 248 = /dev/rd/c2d31 32nd disk, whole disk
1004 51 char Baycom radio modem
1005 0 = /dev/bc0 First Baycom radio modem
1006 1 = /dev/bc1 Second Baycom radio modem
1007 ...
1008 block Mylex DAC960 PCI RAID controller; fourth controller
1009 0 = /dev/rd/c3d0 First disk, whole disk
1010 8 = /dev/rd/c3d1 Second disk, whole disk
1011 ...
1012 248 = /dev/rd/c3d31 32nd disk, whole disk
1014 Partitions are handled as for major 48.
1016 52 char Spellcaster DataComm/BRI ISDN card
1017 0 = /dev/dcbri0 First DataComm card
1018 1 = /dev/dcbri1 Second DataComm card
1019 2 = /dev/dcbri2 Third DataComm card
1020 3 = /dev/dcbri3 Fourth DataComm card
1021 block Mylex DAC960 PCI RAID controller; fifth controller
1022 0 = /dev/rd/c4d0 First disk, whole disk
1023 8 = /dev/rd/c4d1 Second disk, whole disk
1024 ...
1025 248 = /dev/rd/c4d31 32nd disk, whole disk
1027 Partitions are handled as for major 48.
1029 53 char BDM interface for remote debugging MC683xx microcontrollers
1030 0 = /dev/pd_bdm0 PD BDM interface on lp0
1031 1 = /dev/pd_bdm1 PD BDM interface on lp1
1032 2 = /dev/pd_bdm2 PD BDM interface on lp2
1033 4 = /dev/icd_bdm0 ICD BDM interface on lp0
1034 5 = /dev/icd_bdm1 ICD BDM interface on lp1
1035 6 = /dev/icd_bdm2 ICD BDM interface on lp2
1037 This device is used for the interfacing to the MC683xx
1038 microcontrollers via Background Debug Mode by use of a
1039 Parallel Port interface. PD is the Motorola Public
1040 Domain Interface and ICD is the commercial interface
1041 by P&E.
1043 block Mylex DAC960 PCI RAID controller; sixth controller
1044 0 = /dev/rd/c5d0 First disk, whole disk
1045 8 = /dev/rd/c5d1 Second disk, whole disk
1046 ...
1047 248 = /dev/rd/c5d31 32nd disk, whole disk
1049 Partitions are handled as for major 48.
1051 54 char Electrocardiognosis Holter serial card
1052 0 = /dev/holter0 First Holter port
1053 1 = /dev/holter1 Second Holter port
1054 2 = /dev/holter2 Third Holter port
1056 A custom serial card used by Electrocardiognosis SRL
1057 <mseritan@ottonel.pub.ro> to transfer data from Holter
1058 24-hour heart monitoring equipment.
1060 block Mylex DAC960 PCI RAID controller; seventh controller
1061 0 = /dev/rd/c6d0 First disk, whole disk
1062 8 = /dev/rd/c6d1 Second disk, whole disk
1063 ...
1064 248 = /dev/rd/c6d31 32nd disk, whole disk
1066 Partitions are handled as for major 48.
1068 55 char DSP56001 digital signal processor
1069 0 = /dev/dsp56k First DSP56001
1070 block Mylex DAC960 PCI RAID controller; eigth controller
1071 0 = /dev/rd/c7d0 First disk, whole disk
1072 8 = /dev/rd/c7d1 Second disk, whole disk
1073 ...
1074 248 = /dev/rd/c7d31 32nd disk, whole disk
1076 Partitions are handled as for major 48.
1078 56 char Apple Desktop Bus
1079 0 = /dev/adb ADB bus control
1081 Additional devices will be added to this number, all
1082 starting with /dev/adb.
1084 block Fifth IDE hard disk/CD-ROM interface
1085 0 = /dev/hdi Master: whole disk (or CD-ROM)
1086 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1088 Partitions are handled the same way as for the first
1089 interface (see major number 3).
1091 57 char Hayes ESP serial card
1092 0 = /dev/ttyP0 First ESP port
1093 1 = /dev/ttyP1 Second ESP port
1094 ...
1096 block Sixth IDE hard disk/CD-ROM interface
1097 0 = /dev/hdk Master: whole disk (or CD-ROM)
1098 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1100 Partitions are handled the same way as for the first
1101 interface (see major number 3).
1103 58 char Hayes ESP serial card - alternate devices
1104 0 = /dev/cup0 Callout device for ttyP0
1105 1 = /dev/cup1 Callout device for ttyP1
1106 ...
1107 block Reserved for logical volume manager
1109 59 char sf firewall package
1110 0 = /dev/firewall Communication with sf kernel module
1112 block Generic PDA filesystem device
1113 0 = /dev/pda0 First PDA device
1114 1 = /dev/pda1 Second PDA device
1115 ...
1117 The pda devices are used to mount filesystems on
1118 remote pda's (basically slow handheld machines with
1119 proprietary OS's and limited memory and storage
1120 running small fs translation drivers) through serial /
1121 IRDA / parallel links.
1123 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1125 60-63 LOCAL/EXPERIMENTAL USE
1126 Allocated for local/experimental use. For devices not
1127 assigned official numbers, these ranges should be
1128 used, in order to avoid conflicting with future assignments.
1130 64 char ENskip kernel encryption package
1131 0 = /dev/enskip Communication with ENskip kernel module
1133 65 char Sundance "plink" Transputer boards
1134 0 = /dev/plink0 First plink device
1135 1 = /dev/plink1 Second plink device
1136 2 = /dev/plink2 Third plink device
1137 3 = /dev/plink3 Fourth plink device
1138 64 = /dev/rplink0 First plink device, raw
1139 65 = /dev/rplink1 Second plink device, raw
1140 66 = /dev/rplink2 Third plink device, raw
1141 67 = /dev/rplink3 Fourth plink device, raw
1142 128 = /dev/plink0d First plink device, debug
1143 129 = /dev/plink1d Second plink device, debug
1144 130 = /dev/plink2d Third plink device, debug
1145 131 = /dev/plink3d Fourth plink device, debug
1146 192 = /dev/rplink0d First plink device, raw, debug
1147 193 = /dev/rplink1d Second plink device, raw, debug
1148 194 = /dev/rplink2d Third plink device, raw, debug
1149 195 = /dev/rplink3d Fourth plink device, raw, debug
1151 This is a commercial driver; contact James Howes
1152 <jth@prosig.demon.co.uk> for information.
1154 block SCSI disk devices (16-31)
1155 0 = /dev/sdq 16th SCSI disk whole disk
1156 16 = /dev/sdr 17th SCSI disk whole disk
1157 32 = /dev/sds 18th SCSI disk whole disk
1158 ...
1159 240 = /dev/sdaf 32nd SCSI disk whole disk
1161 Partitions are handled in the same way as for IDE
1162 disks (see major number 3) except that the limit on
1163 partitions is 15.
1165 66 char YARC PowerPC PCI coprocessor card
1166 0 = /dev/yppcpci0 First YARC card
1167 1 = /dev/yppcpci1 Second YARC card
1168 ...
1170 block SCSI disk devices (32-47)
1171 0 = /dev/sdag 33th SCSI disk whole disk
1172 16 = /dev/sdah 34th SCSI disk whole disk
1173 32 = /dev/sdai 35th SCSI disk whole disk
1174 ...
1175 240 = /dev/sdav 48nd SCSI disk whole disk
1177 Partitions are handled in the same way as for IDE
1178 disks (see major number 3) except that the limit on
1179 partitions is 15.
1181 67 char Coda network file system
1182 0 = /dev/cfs0 Coda cache manager
1184 See http://www.coda.cs.cmu.edu for information about Coda.
1186 block SCSI disk devices (48-63)
1187 0 = /dev/sdaw 49th SCSI disk whole disk
1188 16 = /dev/sdax 50th SCSI disk whole disk
1189 32 = /dev/sday 51st SCSI disk whole disk
1190 ...
1191 240 = /dev/sdbl 64th SCSI disk whole disk
1193 Partitions are handled in the same way as for IDE
1194 disks (see major number 3) except that the limit on
1195 partitions is 15.
1197 68 char CAPI 2.0 interface
1198 0 = /dev/capi20 Control device
1199 1 = /dev/capi20.00 First CAPI 2.0 application
1200 2 = /dev/capi20.01 Second CAPI 2.0 application
1201 ...
1202 20 = /dev/capi20.19 19th CAPI 2.0 application
1204 ISDN CAPI 2.0 driver for use with CAPI 2.0
1205 applications; currently supports the AVM B1 card.
1207 block SCSI disk devices (64-79)
1208 0 = /dev/sdbm 64th SCSI disk whole disk
1209 16 = /dev/sdbn 65th SCSI disk whole disk
1210 32 = /dev/sdbo 66th SCSI disk whole disk
1211 ...
1212 240 = /dev/sdcb 80th SCSI disk whole disk
1214 Partitions are handled in the same way as for IDE
1215 disks (see major number 3) except that the limit on
1216 partitions is 15.
1218 69 char MA16 numeric accelerator card
1219 0 = /dev/ma16 Board memory access
1221 block SCSI disk devices (80-95)
1222 0 = /dev/sdcc 81st SCSI disk whole disk
1223 16 = /dev/sdcd 82nd SCSI disk whole disk
1224 32 = /dev/sdce 83th SCSI disk whole disk
1225 ...
1226 240 = /dev/sdcr 96th SCSI disk whole disk
1228 Partitions are handled in the same way as for IDE
1229 disks (see major number 3) except that the limit on
1230 partitions is 15.
1232 70 char SpellCaster Protocol Services Interface
1233 0 = /dev/apscfg Configuration interface
1234 1 = /dev/apsauth Authentication interface
1235 2 = /dev/apslog Logging interface
1236 3 = /dev/apsdbg Debugging interface
1237 64 = /dev/apsisdn ISDN command interface
1238 65 = /dev/apsasync Async command interface
1239 128 = /dev/apsmon Monitor interface
1241 block SCSI disk devices (96-111)
1242 0 = /dev/sdcs 97th SCSI disk whole disk
1243 16 = /dev/sdct 98th SCSI disk whole disk
1244 32 = /dev/sdcu 99th SCSI disk whole disk
1245 ...
1246 240 = /dev/sddh 112nd SCSI disk whole disk
1248 Partitions are handled in the same way as for IDE
1249 disks (see major number 3) except that the limit on
1250 partitions is 15.
1252 71 char Computone IntelliPort II serial card
1253 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1254 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1255 ...
1256 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1257 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1258 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1259 ...
1260 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1261 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1262 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1263 ...
1264 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1265 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1266 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1267 ...
1268 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1270 block SCSI disk devices (112-127)
1271 0 = /dev/sddi 113th SCSI disk whole disk
1272 16 = /dev/sddj 114th SCSI disk whole disk
1273 32 = /dev/sddk 115th SCSI disk whole disk
1274 ...
1275 240 = /dev/sddx 128th SCSI disk whole disk
1277 Partitions are handled in the same way as for IDE
1278 disks (see major number 3) except that the limit on
1279 partitions is 15.
1281 72 char Computone IntelliPort II serial card - alternate devices
1282 0 = /dev/cuf0 Callout device for ttyF0
1283 1 = /dev/cuf1 Callout device for ttyF1
1284 ...
1285 63 = /dev/cuf63 Callout device for ttyF63
1286 64 = /dev/cuf64 Callout device for ttyF64
1287 65 = /dev/cuf65 Callout device for ttyF65
1288 ...
1289 127 = /dev/cuf127 Callout device for ttyF127
1290 128 = /dev/cuf128 Callout device for ttyF128
1291 129 = /dev/cuf129 Callout device for ttyF129
1292 ...
1293 191 = /dev/cuf191 Callout device for ttyF191
1294 192 = /dev/cuf192 Callout device for ttyF192
1295 193 = /dev/cuf193 Callout device for ttyF193
1296 ...
1297 255 = /dev/cuf255 Callout device for ttyF255
1299 block Compaq Intelligent Drive Array, first controller
1300 0 = /dev/ida/c0d0 First logical drive whole disk
1301 16 = /dev/ida/c0d1 Second logical drive whole disk
1302 ...
1303 240 = /dev/ida/c0d15 16th logical drive whole disk
1305 Partitions are handled the same way as for Mylex
1306 DAC960 (see major number 48) except that the limit on
1307 partitions is 15.
1309 73 char Computone IntelliPort II serial card - control devices
1310 0 = /dev/ip2ipl0 Loadware device for board 0
1311 1 = /dev/ip2stat0 Status device for board 0
1312 4 = /dev/ip2ipl1 Loadware device for board 1
1313 5 = /dev/ip2stat1 Status device for board 1
1314 8 = /dev/ip2ipl2 Loadware device for board 2
1315 9 = /dev/ip2stat2 Status device for board 2
1316 12 = /dev/ip2ipl3 Loadware device for board 3
1317 13 = /dev/ip2stat3 Status device for board 3
1319 block Compaq Intelligent Drive Array, second controller
1320 0 = /dev/ida/c1d0 First logical drive whole disk
1321 16 = /dev/ida/c1d1 Second logical drive whole disk
1322 ...
1323 240 = /dev/ida/c1d15 16th logical drive whole disk
1325 Partitions are handled the same way as for Mylex
1326 DAC960 (see major number 48) except that the limit on
1327 partitions is 15.
1329 74 char SCI bridge
1330 0 = /dev/SCI/0 SCI device 0
1331 1 = /dev/SCI/1 SCI device 1
1332 ...
1334 Currently for Dolphin Interconnect Solutions' PCI-SCI
1335 bridge.
1337 block Compaq Intelligent Drive Array, third controller
1338 0 = /dev/ida/c2d0 First logical drive whole disk
1339 16 = /dev/ida/c2d1 Second logical drive whole disk
1340 ...
1341 240 = /dev/ida/c2d15 16th logical drive whole disk
1343 Partitions are handled the same way as for Mylex
1344 DAC960 (see major number 48) except that the limit on
1345 partitions is 15.
1347 75 char Specialix IO8+ serial card
1348 0 = /dev/ttyW0 First IO8+ port, first card
1349 1 = /dev/ttyW1 Second IO8+ port, first card
1350 ...
1351 8 = /dev/ttyW8 First IO8+ port, second card
1352 ...
1354 block Compaq Intelligent Drive Array, fourth controller
1355 0 = /dev/ida/c3d0 First logical drive whole disk
1356 16 = /dev/ida/c3d1 Second logical drive whole disk
1357 ...
1358 240 = /dev/ida/c3d15 16th logical drive whole disk
1360 Partitions are handled the same way as for Mylex
1361 DAC960 (see major number 48) except that the limit on
1362 partitions is 15.
1364 76 char Specialix IO8+ serial card - alternate devices
1365 0 = /dev/cuw0 Callout device for ttyW0
1366 1 = /dev/cuw1 Callout device for ttyW1
1367 ...
1368 8 = /dev/cuw8 Callout device for ttyW8
1369 ...
1371 block Compaq Intelligent Drive Array, fifth controller
1372 0 = /dev/ida/c4d0 First logical drive whole disk
1373 16 = /dev/ida/c4d1 Second logical drive whole disk
1374 ...
1375 240 = /dev/ida/c4d15 16th logical drive whole disk
1377 Partitions are handled the same way as for Mylex
1378 DAC960 (see major number 48) except that the limit on
1379 partitions is 15.
1382 77 char ComScire Quantum Noise Generator
1383 0 = /dev/qng ComScire Quantum Noise Generator
1385 block Compaq Intelligent Drive Array, sixth controller
1386 0 = /dev/ida/c5d0 First logical drive whole disk
1387 16 = /dev/ida/c5d1 Second logical drive whole disk
1388 ...
1389 240 = /dev/ida/c5d15 16th logical drive whole disk
1391 Partitions are handled the same way as for Mylex
1392 DAC960 (see major number 48) except that the limit on
1393 partitions is 15.
1396 78 char PAM Software's multimodem boards
1397 0 = /dev/ttyM0 First PAM modem
1398 1 = /dev/ttyM1 Second PAM modem
1399 ...
1401 block Compaq Intelligent Drive Array, seventh controller
1402 0 = /dev/ida/c6d0 First logical drive whole disk
1403 16 = /dev/ida/c6d1 Second logical drive whole disk
1404 ...
1405 240 = /dev/ida/c6d15 16th logical drive whole disk
1407 Partitions are handled the same way as for Mylex
1408 DAC960 (see major number 48) except that the limit on
1409 partitions is 15.
1412 79 char PAM Software's multimodem boards - alternate devices
1413 0 = /dev/cum0 Callout device for ttyM0
1414 1 = /dev/cum1 Callout device for ttyM1
1415 ...
1417 block Compaq Intelligent Drive Array, eigth controller
1418 0 = /dev/ida/c7d0 First logical drive whole disk
1419 16 = /dev/ida/c7d1 Second logical drive whole disk
1420 ...
1421 240 = /dev/ida/c715 16th logical drive whole disk
1423 Partitions are handled the same way as for Mylex
1424 DAC960 (see major number 48) except that the limit on
1425 partitions is 15.
1428 80 char Photometrics AT200 CCD camera
1429 0 = /dev/at200 Photometrics AT200 CCD camera
1431 block I2O hard disk
1432 0 = /dev/i2o/hda First I2O hard disk, whole disk
1433 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1434 ...
1435 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1437 Partitions are handled in the same way as for IDE
1438 disks (see major number 3) except that the limit on
1439 partitions is 15.
1441 81 char video4linux
1442 0 = /dev/video0 Video capture/overlay device
1443 ...
1444 63 = /dev/video63 Video capture/overlay device
1445 64 = /dev/radio0 Radio device
1446 ...
1447 127 = /dev/radio63 Radio device
1448 192 = /dev/vtx0 Teletext device
1449 ...
1450 223 = /dev/vtx31 Teletext device
1451 224 = /dev/vbi0 Vertical blank interrupt
1452 ...
1453 255 = /dev/vbi31 Vertical blank interrupt
1455 block I2O hard disk
1456 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1457 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1458 ...
1459 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1461 Partitions are handled in the same way as for IDE
1462 disks (see major number 3) except that the limit on
1463 partitions is 15.
1465 82 char WiNRADiO communications receiver card
1466 0 = /dev/winradio0 First WiNRADiO card
1467 1 = /dev/winradio1 Second WiNRADiO card
1468 ...
1470 The driver and documentation may be obtained from
1471 http://www.proximity.com.au/~brian/winradio/
1473 block I2O hard disk
1474 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1475 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1476 ...
1477 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1479 Partitions are handled in the same way as for IDE
1480 disks (see major number 3) except that the limit on
1481 partitions is 15.
1483 83 char Teletext/videotext interfaces {2.6}
1484 0 = /dev/vtx Teletext decoder
1485 16 = /dev/vttuner TV tuner on teletext interface
1487 Devices for the driver contained in the VideoteXt package.
1488 More information on http://home.pages.de/~videotext/
1490 block I2O hard disk
1491 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1492 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1493 ...
1494 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk
1496 Partitions are handled in the same way as for IDE
1497 disks (see major number 3) except that the limit on
1498 partitions is 15.
1500 84 char Ikon 1011[57] Versatec Greensheet Interface
1501 0 = /dev/ihcp0 First Greensheet port
1502 1 = /dev/ihcp1 Second Greensheet port
1504 block I2O hard disk
1505 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1506 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1507 ...
1508 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1510 Partitions are handled in the same way as for IDE
1511 disks (see major number 3) except that the limit on
1512 partitions is 15.
1514 85 char Linux/SGI shared memory input queue
1515 0 = /dev/shmiq Master shared input queue
1516 1 = /dev/qcntl0 First device pushed
1517 2 = /dev/qcntl1 Second device pushed
1518 ...
1520 block I2O hard disk
1521 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1522 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1523 ...
1524 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk
1526 Partitions are handled in the same way as for IDE
1527 disks (see major number 3) except that the limit on
1528 partitions is 15.
1530 86 char SCSI media changer
1531 0 = /dev/sch0 First SCSI media changer
1532 1 = /dev/sch1 Second SCSI media changer
1533 ...
1535 block I2O hard disk
1536 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1537 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1538 ...
1539 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1541 Partitions are handled in the same way as for IDE
1542 disks (see major number 3) except that the limit on
1543 partitions is 15.
1545 87 char Sony Control-A1 stereo control bus
1546 0 = /dev/controla0 First device on chain
1547 1 = /dev/controla1 Second device on chain
1548 ...
1550 block I2O hard disk
1551 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1552 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1553 ...
1554 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1556 Partitions are handled in the same way as for IDE
1557 disks (see major number 3) except that the limit on
1558 partitions is 15.
1560 88 char COMX synchronous serial card
1561 0 = /dev/comx0 COMX channel 0
1562 1 = /dev/comx1 COMX channel 1
1563 ...
1565 block Seventh IDE hard disk/CD-ROM interface
1566 0 = /dev/hdm Master: whole disk (or CD-ROM)
1567 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1569 Partitions are handled the same way as for the first
1570 interface (see major number 3).
1572 89 char I2C bus interface
1573 0 = /dev/i2c-0 First I2C adapter
1574 1 = /dev/i2c-1 Second I2C adapter
1575 ...
1577 block Eighth IDE hard disk/CD-ROM interface
1578 0 = /dev/hdo Master: whole disk (or CD-ROM)
1579 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1581 Partitions are handled the same way as for the first
1582 interface (see major number 3).
1584 90 char Memory Technology Device (RAM, ROM, Flash)
1585 0 = /dev/mtd0 First MTD (rw)
1586 1 = /dev/mtdr0 First MTD (ro)
1587 ...
1588 30 = /dev/mtd15 16th MTD (rw)
1589 31 = /dev/mtdr15 16th MTD (ro)
1591 block Ninth IDE hard disk/CD-ROM interface
1592 0 = /dev/hdq Master: whole disk (or CD-ROM)
1593 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1595 Partitions are handled the same way as for the first
1596 interface (see major number 3).
1598 91 char CAN-Bus devices
1599 0 = /dev/can0 First CAN-Bus controller
1600 1 = /dev/can1 Second CAN-Bus controller
1601 ...
1603 block Tenth IDE hard disk/CD-ROM interface
1604 0 = /dev/hds Master: whole disk (or CD-ROM)
1605 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1607 Partitions are handled the same way as for the first
1608 interface (see major number 3).
1610 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1612 block PPDD encrypted disk driver
1613 0 = /dev/ppdd0 First encrypted disk
1614 1 = /dev/ppdd1 Second encrypted disk
1615 ...
1617 Partitions are handled in the same way as for IDE
1618 disks (see major number 3) except that the limit on
1619 partitions is 15.
1621 93 char IBM Smart Capture Card frame grabber {2.6}
1622 0 = /dev/iscc0 First Smart Capture Card
1623 1 = /dev/iscc1 Second Smart Capture Card
1624 ...
1625 128 = /dev/isccctl0 First Smart Capture Card control
1626 129 = /dev/isccctl1 Second Smart Capture Card control
1627 ...
1629 block NAND Flash Translation Layer filesystem
1630 0 = /dev/nftla First NFTL layer
1631 16 = /dev/nftlb Second NFTL layer
1632 ...
1633 240 = /dev/nftlp 16th NTFL layer
1635 94 char miroVIDEO DC10/30 capture/playback device {2.6}
1636 0 = /dev/dcxx0 First capture card
1637 1 = /dev/dcxx1 Second capture card
1638 ...
1640 block IBM S/390 DASD block storage
1641 0 = /dev/dasda First DASD device, major
1642 1 = /dev/dasda1 First DASD device, block 1
1643 2 = /dev/dasda2 First DASD device, block 2
1644 3 = /dev/dasda3 First DASD device, block 3
1645 4 = /dev/dasdb Second DASD device, major
1646 5 = /dev/dasdb1 Second DASD device, block 1
1647 6 = /dev/dasdb2 Second DASD device, block 2
1648 7 = /dev/dasdb3 Second DASD device, block 3
1649 ...
1651 95 char IP filter
1652 0 = /dev/ipl Filter control device/log file
1653 1 = /dev/ipnat NAT control device/log file
1654 2 = /dev/ipstate State information log file
1655 3 = /dev/ipauth Authentication control device/log file
1656 ...
1658 block IBM S/390 VM/ESA minidisk
1659 0 = /dev/mnda First VM/ESA minidisk
1660 1 = /dev/mndb Second VM/ESA minidisk
1661 ...
1663 96 char Parallel port ATAPI tape devices
1664 0 = /dev/pt0 First parallel port ATAPI tape
1665 1 = /dev/pt1 Second parallel port ATAPI tape
1666 ...
1667 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1668 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1669 ...
1671 97 char Parallel port generic ATAPI interface
1672 0 = /dev/pg0 First parallel port ATAPI device
1673 1 = /dev/pg1 Second parallel port ATAPI device
1674 2 = /dev/pg2 Third parallel port ATAPI device
1675 3 = /dev/pg3 Fourth parallel port ATAPI device
1677 These devices support the same API as the generic SCSI
1678 devices.
1680 block Packet writing for CD/DVD devices
1681 0 = /dev/pktcdvd0 First packet-writing module
1682 1 = /dev/pktcdvd1 Second packet-writing module
1683 ...
1685 98 char Control and Measurement Device (comedi)
1686 0 = /dev/comedi0 First comedi device
1687 1 = /dev/comedi1 Second comedi device
1688 ...
1690 See http://stm.lbl.gov/comedi or http://www.llp.fu-berlin.de/.
1692 block User-mode virtual block device
1693 0 = /dev/ubd0 First user-mode block device
1694 1 = /dev/ubd1 Second user-mode block device
1695 ...
1697 This device is used by the user-mode virtual kernel port.
1699 99 char Raw parallel ports
1700 0 = /dev/parport0 First parallel port
1701 1 = /dev/parport1 Second parallel port
1702 ...
1704 block JavaStation flash disk
1705 0 = /dev/jsfd JavaStation flash disk
1707 100 char Telephony for Linux
1708 0 = /dev/phone0 First telephony device
1709 1 = /dev/phone1 Second telephony device
1710 ...
1712 101 char Motorola DSP 56xxx board
1713 0 = /dev/mdspstat Status information
1714 1 = /dev/mdsp1 First DSP board I/O controls
1715 ...
1716 16 = /dev/mdsp16 16th DSP board I/O controls
1718 block AMI HyperDisk RAID controller
1719 0 = /dev/amiraid/ar0 First array whole disk
1720 16 = /dev/amiraid/ar1 Second array whole disk
1721 ...
1722 240 = /dev/amiraid/ar15 16th array whole disk
1724 For each device, partitions are added as:
1725 0 = /dev/amiraid/ar? Whole disk
1726 1 = /dev/amiraid/ar?p1 First partition
1727 2 = /dev/amiraid/ar?p2 Second partition
1728 ...
1729 15 = /dev/amiraid/ar?p15 15th partition
1731 102 char Philips SAA5249 Teletext signal decoder {2.6}
1732 0 = /dev/tlk0 First Teletext decoder
1733 1 = /dev/tlk1 Second Teletext decoder
1734 2 = /dev/tlk2 Third Teletext decoder
1735 3 = /dev/tlk3 Fourth Teletext decoder
1737 block Compressed block device
1738 0 = /dev/cbd/a First compressed block device, whole device
1739 16 = /dev/cbd/b Second compressed block device, whole device
1740 ...
1741 240 = /dev/cbd/p 16th compressed block device, whole device
1743 Partitions are handled in the same way as for IDE
1744 disks (see major number 3) except that the limit on
1745 partitions is 15.
1747 103 char Arla network file system
1748 0 = /dev/xfs0 Arla XFS
1750 Arla is a free clone of the Andrew File System, AFS.
1751 Any resemblance with the Swedish milk producer is
1752 coincidental. For more information about the project,
1753 write to <arla-drinkers@stacken.kth.se> or subscribe
1754 to the arla announce mailing list by sending a mail to
1755 <arla-announce-request@stacken.kth.se>.
1757 block Audit device
1758 0 = /dev/audit Audit device
1760 104 char Flash BIOS support
1762 block Compaq Next Generation Drive Array, first controller
1763 0 = /dev/cciss/c0d0 First logical drive, whole disk
1764 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1765 ...
1766 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1768 Partitions are handled the same way as for Mylex
1769 DAC960 (see major number 48) except that the limit on
1770 partitions is 15.
1772 105 char Comtrol VS-1000 serial controller
1773 0 = /dev/ttyV0 First VS-1000 port
1774 1 = /dev/ttyV1 Second VS-1000 port
1775 ...
1777 block Compaq Next Generation Drive Array, second controller
1778 0 = /dev/cciss/c1d0 First logical drive, whole disk
1779 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1780 ...
1781 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1783 Partitions are handled the same way as for Mylex
1784 DAC960 (see major number 48) except that the limit on
1785 partitions is 15.
1787 106 char Comtrol VS-1000 serial controller - alternate devices
1788 0 = /dev/cuv0 First VS-1000 port
1789 1 = /dev/cuv1 Second VS-1000 port
1790 ...
1792 block Compaq Next Generation Drive Array, third controller
1793 0 = /dev/cciss/c2d0 First logical drive, whole disk
1794 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1795 ...
1796 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1798 Partitions are handled the same way as for Mylex
1799 DAC960 (see major number 48) except that the limit on
1800 partitions is 15.
1802 107 char 3Dfx Voodoo Graphics device
1803 0 = /dev/3dfx Primary 3Dfx graphics device
1805 block Compaq Next Generation Drive Array, fourth controller
1806 0 = /dev/cciss/c3d0 First logical drive, whole disk
1807 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1808 ...
1809 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1811 Partitions are handled the same way as for Mylex
1812 DAC960 (see major number 48) except that the limit on
1813 partitions is 15.
1815 108 char Device independent PPP interface
1816 0 = /dev/ppp Device independent PPP interface
1818 block Compaq Next Generation Drive Array, fifth controller
1819 0 = /dev/cciss/c4d0 First logical drive, whole disk
1820 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1821 ...
1822 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1824 Partitions are handled the same way as for Mylex
1825 DAC960 (see major number 48) except that the limit on
1826 partitions is 15.
1828 109 char Reserved for logical volume manager
1830 block Compaq Next Generation Drive Array, sixth controller
1831 0 = /dev/cciss/c5d0 First logical drive, whole disk
1832 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1833 ...
1834 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1836 Partitions are handled the same way as for Mylex
1837 DAC960 (see major number 48) except that the limit on
1838 partitions is 15.
1840 110 char miroMEDIA Surround board
1841 0 = /dev/srnd0 First miroMEDIA Surround board
1842 1 = /dev/srnd1 Second miroMEDIA Surround board
1843 ...
1845 block Compaq Next Generation Drive Array, seventh controller
1846 0 = /dev/cciss/c6d0 First logical drive, whole disk
1847 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1848 ...
1849 240 = /dev/cciss/c6d15 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
1853 partitions is 15.
1855 111 char Philips SAA7146-based audio/video card {2.6}
1856 0 = /dev/av0 First A/V card
1857 1 = /dev/av1 Second A/V card
1858 ...
1860 block Compaq Next Generation Drive Array, eigth controller
1861 0 = /dev/cciss/c7d0 First logical drive, whole disk
1862 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1863 ...
1864 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1866 Partitions are handled the same way as for Mylex
1867 DAC960 (see major number 48) except that the limit on
1868 partitions is 15.
1870 112 char ISI serial card
1871 0 = /dev/ttyM0 First ISI port
1872 1 = /dev/ttyM1 Second ISI port
1873 ...
1875 There is currently a device-naming conflict between
1876 these and PAM multimodems (major 78).
1878 block IBM iSeries virtual disk
1879 0 = /dev/iseries/vda First virtual disk, whole disk
1880 8 = /dev/iseries/vdb Second virtual disk, whole disk
1881 ...
1882 200 = /dev/iseries/vdz 26th virtual disk, whole disk
1883 208 = /dev/iseries/vdaa 27th virtual disk, whole disk
1884 ...
1885 240 = /dev/iseries/vdaf 32nd virtual disk, whole disk
1887 Partitions are handled in the same way as for IDE
1888 disks (see major number 3) except that the limit on
1889 partitions is 7.
1891 113 char ISI serial card - alternate devices
1892 0 = /dev/cum0 Callout device for ttyM0
1893 1 = /dev/cum1 Callout device for ttyM1
1894 ...
1896 block IBM iSeries virtual CD-ROM
1898 0 = /dev/iseries/vcda First virtual CD-ROM
1899 1 = /dev/iseries/vcdb Second virtual CD-ROM
1900 ...
1902 114 char Picture Elements ISE board
1903 0 = /dev/ise0 First ISE board
1904 1 = /dev/ise1 Second ISE board
1905 ...
1906 128 = /dev/isex0 Control node for first ISE board
1907 129 = /dev/isex1 Control node for second ISE board
1908 ...
1910 The ISE board is an embedded computer, optimized for
1911 image processing. The /dev/iseN nodes are the general
1912 I/O access to the board, the /dev/isex0 nodes command
1913 nodes used to control the board.
1915 115 char Console driver speaker
1916 0 = /dev/speaker Speaker device file
1918 Plays music using IBM BASIC style strings.
1920 116 char Advanced Linux Sound Driver (ALSA)
1922 117 char COSA/SRP synchronous serial card
1923 0 = /dev/cosa0c0 1st board, 1st channel
1924 1 = /dev/cosa0c1 1st board, 2nd channel
1925 ...
1926 16 = /dev/cosa1c0 2nd board, 1st channel
1927 17 = /dev/cosa1c1 2nd board, 2nd channel
1928 ...
1930 118 char Solidum ???
1931 0 = /dev/solnp0
1932 1 = /dev/solnp1
1933 ...
1934 128 = /dev/solnpctl0
1935 129 = /dev/solnpctl1
1936 ...
1938 119 char VMware virtual network control
1939 0 = /dev/vnet0 1st virtual network
1940 1 = /dev/vnet1 2nd virtual network
1941 ...
1943 120-127 LOCAL/EXPERIMENTAL USE
1945 128-135 char Unix98 PTY masters
1947 These devices should not have corresponding device
1948 nodes; instead they should be accessed through the
1949 /dev/ptmx cloning interface.
1951 136-143 char Unix98 PTY slaves
1952 0 = /dev/pts/0 First Unix98 pseudo-TTY
1953 1 = /dev/pts/1 Second Unix98 pesudo-TTY
1954 ...
1956 These device nodes are automatically generated with
1957 the proper permissions and modes by mounting the
1958 devpts filesystem onto /dev/pts with the appropriate
1959 mount options (distribution dependent, however, on
1960 *most* distributions the appropriate options are
1961 "mode=0620,gid=<gid of the "tty" group>".)
1963 144 char Encapsulated PPP
1964 0 = /dev/pppox0 First PPP over Ethernet
1965 ...
1966 63 = /dev/pppox63 64th PPP over Ethernet
1968 This is primarily used for ADSL.
1970 The SST 5136-DN DeviceNet interface driver has been
1971 relocated to major 183 due to an unfortunate conflict.
1973 145 char SAM9407-based soundcard
1974 0 = /dev/sam0_mixer
1975 1 = /dev/sam0_sequencer
1976 2 = /dev/sam0_midi00
1977 3 = /dev/sam0_dsp
1978 4 = /dev/sam0_audio
1979 6 = /dev/sam0_sndstat
1980 18 = /dev/sam0_midi01
1981 34 = /dev/sam0_midi02
1982 50 = /dev/sam0_midi03
1983 64 = /dev/sam1_mixer
1984 ...
1985 128 = /dev/sam2_mixer
1986 ...
1987 192 = /dev/sam3_mixer
1988 ...
1990 Device functions match OSS, but offer a number of
1991 addons, which are sam9407 specific. OSS can be
1992 operated simultaneously, taking care of the codec.
1994 146 char SYSTRAM SCRAMNet mirrored-memory network
1995 0 = /dev/scramnet0 First SCRAMNet device
1996 1 = /dev/scramnet1 Second SCRAMNet device
1997 ...
1999 147 char Aueral Semiconductor Vortex Audio device
2000 0 = /dev/aureal0 First Aureal Vortex
2001 1 = /dev/aureal1 Second Aureal Vortex
2002 ...
2004 148 char Technology Concepts serial card
2005 0 = /dev/ttyT0 First TCL port
2006 1 = /dev/ttyT1 Second TCL port
2007 ...
2009 149 char Technology Concepts serial card - alternate devices
2010 0 = /dev/cut0 Callout device for ttyT0
2011 1 = /dev/cut0 Callout device for ttyT1
2012 ...
2014 150 char Real-Time Linux FIFOs
2015 0 = /dev/rtf0 First RTLinux FIFO
2016 1 = /dev/rtf1 Second RTLinux FIFO
2017 ...
2019 151 char DPT I2O SmartRaid V controller
2020 0 = /dev/dpti0 First DPT I2O adapter
2021 1 = /dev/dpti1 Second DPT I2O adapter
2022 ...
2024 154 char Specialix RIO serial card
2025 0 = /dev/ttySR0 First RIO port
2026 ...
2027 255 = /dev/ttySR255 256th RIO port
2029 155 char Specialix RIO serial card - alternate devices
2030 0 = /dev/cusr0 Callout device for ttySR0
2031 ...
2032 255 = /dev/cusr255 Callout device for ttySR255
2034 156 char Specialix RIO serial card
2035 0 = /dev/ttySR256 257th RIO port
2036 ...
2037 255 = /dev/ttySR511 512th RIO port
2039 157 char Specialix RIO serial card - alternate devices
2040 0 = /dev/cusr256 Callout device for ttySR256
2041 ...
2042 255 = /dev/cusr511 Callout device for ttySR511
2044 158 char Dialogic GammaLink fax driver
2045 0 = /dev/gfax0 GammaLink channel 0
2046 1 = /dev/gfax1 GammaLink channel 1
2047 ...
2049 159 RESERVED
2051 160 char General Purpose Instrument Bus (GPIB)
2052 0 = /dev/gpib0 First GPIB bus
2053 1 = /dev/gpib1 Second GPIB bus
2054 ...
2056 161 char IrCOMM devices (IrDA serial/parallel emulation)
2057 0 = /dev/ircomm0 First IrCOMM device
2058 1 = /dev/ircomm1 Second IrCOMM device
2059 ...
2060 16 = /dev/irlpt0 First IrLPT device
2061 17 = /dev/irlpt1 Second IrLPT device
2062 ...
2064 162 char Raw block device interface
2065 0 = /dev/rawctl Raw I/O control device
2066 1 = /dev/raw/raw1 First raw I/O device
2067 2 = /dev/raw/raw2 Second raw I/O device
2068 ...
2070 163 char Radio Tech BIM-XXX-RS232 radio modem
2071 0 = /dev/bimrt0 First BIM radio modem
2072 1 = /dev/bimrt1 Second BIM radio modem
2073 ...
2075 164 char Chase Research AT/PCI-Fast serial card
2076 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2077 ...
2078 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2079 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2080 ...
2081 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2082 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2083 ...
2084 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2085 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2086 ...
2087 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2089 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2090 0 = /dev/cuch0 Callout device for ttyCH0
2091 ...
2092 63 = /dev/cuch63 Callout device for ttyCH63
2094 166 char ACM USB modems
2095 0 = /dev/ttyACM0 First ACM modem
2096 1 = /dev/ttyACM1 Second ACM modem
2097 ...
2099 167 char ACM USB modems - alternate devices
2100 0 = /dev/cuacm0 Callout device for ttyACM0
2101 1 = /dev/cuacm1 Callout device for ttyACM1
2102 ...
2104 168 char Eracom CSA7000 PCI encryption adaptor
2105 0 = /dev/ecsa0 First CSA7000
2106 1 = /dev/ecsa1 Second CSA7000
2107 ...
2109 169 char Eracom CSA8000 PCI encryption adaptor
2110 0 = /dev/ecsa8-0 First CSA8000
2111 1 = /dev/ecsa8-1 Second CSA8000
2112 ...
2114 170 char AMI MegaRAC remote access controller
2115 0 = /dev/megarac0 First MegaRAC card
2116 1 = /dev/megarac1 Second MegaRAC card
2117 ...
2119 171 char Reserved for IEEE 1394 (Firewire)
2122 172 char Moxa Intellio serial card
2123 0 = /dev/ttyMX0 First Moxa port
2124 1 = /dev/ttyMX1 Second Moxa port
2125 ...
2126 127 = /dev/ttyMX127 128th Moxa port
2127 128 = /dev/moxactl Moxa control port
2129 173 char Moxa Intellio serial card - alternate devices
2130 0 = /dev/cumx0 Callout device for ttyMX0
2131 1 = /dev/cumx1 Callout device for ttyMX1
2132 ...
2133 127 = /dev/cumx127 Callout device for ttyMX127
2135 174 char SmartIO serial card
2136 0 = /dev/ttySI0 First SmartIO port
2137 1 = /dev/ttySI1 Second SmartIO port
2138 ...
2140 175 char SmartIO serial card - alternate devices
2141 0 = /dev/cusi0 Callout device for ttySI0
2142 1 = /dev/cusi1 Callout device for ttySI1
2143 ...
2145 176 char nCipher nFast PCI crypto accelerator
2146 0 = /dev/nfastpci0 First nFast PCI device
2147 1 = /dev/nfastpci1 First nFast PCI device
2148 ...
2150 177 char TI PCILynx memory spaces
2151 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2152 ...
2153 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2154 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2155 ...
2156 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2157 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2158 ...
2159 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2161 178 char Giganet cLAN1xxx virtual interface adapter
2162 0 = /dev/clanvi0 First cLAN adapter
2163 1 = /dev/clanvi1 Second cLAN adapter
2164 ...
2166 179 char CCube DVXChip-based PCI products
2167 0 = /dev/dvxirq0 First DVX device
2168 1 = /dev/dvxirq1 Second DVX device
2169 ...
2171 180 char USB devices
2172 0 = /dev/usb/lp0 First USB printer
2173 ...
2174 15 = /dev/usb/lp15 16th USB printer
2175 16 = /dev/usb/mouse0 First USB mouse
2176 ...
2177 31 = /dev/usb/mouse15 16th USB mouse
2178 32 = /dev/usb/ez0 First USB firmware loader
2179 ...
2180 47 = /dev/usb/ez15 16th USB firmware loader
2181 48 = /dev/usb/scanner0 First USB scanner
2182 ...
2183 63 = /dev/usb/scanner15 16th USB scanner
2184 64 = /dev/usb/rio500 Diamond Rio 500
2186 181 char Conrad Electronic parallel port radio clocks
2187 0 = /dev/pcfclock0 First Conrad radio clock
2188 1 = /dev/pcfclock1 Second Conrad radio clock
2189 ...
2191 182 char Picture Elements THR2 binarizer
2192 0 = /dev/pethr0 First THR2 board
2193 1 = /dev/pethr1 Second THR2 board
2194 ...
2196 183 char SST 5136-DN DeviceNet interface
2197 0 = /dev/ss5136dn0 First DeviceNet interface
2198 1 = /dev/ss5136dn1 Second DeviceNet interface
2199 ...
2201 This device used to be assigned to major number 144.
2202 It had to be moved due to an unfortunate conflict.
2204 184 char Picture Elements' video simulator/sender
2205 0 = /dev/pevss0 First sender board
2206 1 = /dev/pevss1 Second sender board
2207 ...
2209 185 char InterMezzo high availability file system
2210 0 = /dev/intermezzo0 First cache manager
2211 1 = /dev/intermezzo1 Second cache manager
2212 ...
2214 See http://www.inter-mezzo.org/ for more information.
2216 186 char Object-based storage control device
2217 0 = /dev/obd0 First obd control device
2218 1 = /dev/obd1 Second obd control device
2219 ...
2221 See ftp://ftp.lustre.org/pub/obd for code and information.
2223 187 char DESkey hardware encryption device
2224 0 = /dev/deskey0 First DES key
2225 1 = /dev/deskey1 Second DES key
2226 ...
2228 188 char USB serial converters
2229 0 = /dev/ttyUSB0 First USB serial converter
2230 1 = /dev/ttyUSB1 Second USB serial converter
2231 ...
2233 189 char USB serial converters - alternate devices
2234 0 = /dev/cuusb0 Callout device for ttyUSB0
2235 1 = /dev/cuusb1 Callout device for ttyUSB1
2236 ...
2238 190 char Kansas City tracker/tuner card
2239 0 = /dev/kctt0 First KCT/T card
2240 1 = /dev/kctt1 Second KCT/T card
2241 ...
2243 191 char Reserved for PCMCIA
2245 192 char Kernel profiling interface
2246 0 = /dev/profile Profiling control device
2247 1 = /dev/profile0 Profiling device for CPU 0
2248 2 = /dev/profile1 Profiling device for CPU 1
2249 ...
2251 193 char Kernel event-tracing interface
2252 0 = /dev/trace Tracing control device
2253 1 = /dev/trace0 Tracing device for CPU 0
2254 2 = /dev/trace1 Tracing device for CPU 1
2255 ...
2257 194 char linVideoStreams (LINVS)
2258 0 = /dev/mvideo/status0 Video compression status
2259 1 = /dev/mvideo/stream0 Video stream
2260 2 = /dev/mvideo/frame0 Single compressed frame
2261 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2262 4 = /dev/mvideo/codec0 Direct codec access
2263 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2265 16 = /dev/mvideo/status1 Second device
2266 ...
2267 32 = /dev/mvideo/status2 Third device
2268 ...
2269 ...
2270 240 = /dev/mvideo/status15 16th device
2271 ...
2273 195 char Nvidia graphics devices
2274 0 = /dev/nvidia0 First Nvidia card
2275 1 = /dev/nvidia1 Second Nvidia card
2276 ...
2277 255 = /dev/nvidiactl Nvidia card control device
2279 196 char Tormenta T1 card
2280 0 = /dev/tor/0 Master control channel for all cards
2281 1 = /dev/tor/1 First DS0
2282 2 = /dev/tor/2 Second DS0
2283 ...
2284 48 = /dev/tor/48 48th DS0
2285 49 = /dev/tor/49 First pseudo-channel
2286 50 = /dev/tor/50 Second pseudo-channel
2287 ...
2289 197 char OpenTNF tracing facility
2290 0 = /dev/tnf/t0 Trace 0 data extraction
2291 1 = /dev/tnf/t1 Trace 1 data extraction
2292 ...
2293 128 = /dev/tnf/status Tracing facility status
2294 130 = /dev/tnf/trace Tracing device
2296 198 char Total Impact TPMP2 quad coprocessor PCI card
2297 0 = /dev/tpmp2/0 First card
2298 1 = /dev/tpmp2/1 Second card
2299 ...
2301 199 char Veritas volume manager (VxVM) volumes
2302 0 = /dev/vx/rdsk/*/* First volume
2303 1 = /dev/vx/rdsk/*/* Second volume
2304 ...
2305 block Veritas volume manager (VxVM) volumes
2306 0 = /dev/vx/dsk/*/* First volume
2307 1 = /dev/vx/dsk/*/* First volume
2308 ...
2310 The namespace in these directories is maintained by
2311 the user space VxVM software.
2313 200 char Veritas VxVM configuration interface
2314 0 = /dev/vx/config Configuration access node
2315 1 = /dev/vx/trace Volume i/o trace access node
2316 2 = /dev/vx/iod Volume i/o daemon access node
2317 3 = /dev/vx/info Volume information access node
2318 4 = /dev/vx/task Volume tasks access node
2319 5 = /dev/vx/taskmon Volume tasks monitor daemon
2321 201 char Veritas VxVM dynamic multipathing driver
2322 0 = /dev/vx/rdmp/* First multipath device
2323 1 = /dev/vx/rdmp/* Second multipath device
2324 ...
2325 block Veritas VxVM dynamic multipathing driver
2326 0 = /dev/vx/dmp/* First multipath device
2327 1 = /dev/vx/dmp/* Second multipath device
2328 ...
2330 The namespace in these directories is maintained by
2331 the user space VxVM software.
2333 202 char CPU model-specific registers
2334 0 = /dev/cpu/0/msr MSRs on CPU 0
2335 1 = /dev/cpu/1/msr MSRs on CPU 1
2336 ...
2338 203 char CPU CPUID information
2339 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2340 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2341 ...
2343 204 char Low-density serial ports
2344 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2345 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2346 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2347 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2348 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2349 5 = /dev/ttySA0 StrongARM builtin serial port 0
2350 6 = /dev/ttySA1 StrongARM builtin serial port 1
2351 7 = /dev/ttySA2 StrongARM builtin serial port 2
2352 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2353 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2354 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2355 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2356 12 = /dev/ttyFW0 Firmware console - port 0
2357 13 = /dev/ttyFW1 Firmware console - port 1
2358 14 = /dev/ttyFW2 Firmware console - port 2
2359 15 = /dev/ttyFW3 Firmware console - port 3
2360 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2361 ...
2362 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2363 32 = /dev/ttyDB0 DataBooster serial port 0
2364 ...
2365 39 = /dev/ttyDB7 DataBooster serial port 7
2367 205 char Low-density serial ports (alternate device)
2368 0 = /dev/culu0 Callout device for ttyLU0
2369 1 = /dev/culu1 Callout device for ttyLU1
2370 2 = /dev/culu2 Callout device for ttyLU2
2371 3 = /dev/culu3 Callout device for ttyLU3
2372 4 = /dev/cufb0 Callout device for ttyFB0
2373 5 = /dev/cusa0 Callout device for ttySA0
2374 6 = /dev/cusa1 Callout device for ttySA1
2375 7 = /dev/cusa2 Callout device for ttySA2
2376 8 = /dev/cusc0 Callout device for ttySC0
2377 9 = /dev/cusc1 Callout device for ttySC1
2378 10 = /dev/cusc2 Callout device for ttySC2
2379 11 = /dev/cusc3 Callout device for ttySC3
2380 12 = /dev/cufw0 Callout device for ttyFW0
2381 13 = /dev/cufw1 Callout device for ttyFW1
2382 14 = /dev/cufw2 Callout device for ttyFW2
2383 15 = /dev/cufw3 Callout device for ttyFW3
2384 16 = /dev/cuam0 Callout device for ttyAM0
2385 ...
2386 31 = /dev/cuam15 Callout device for ttyAM15
2387 32 = /dev/cudb0 Callout device for ttyDB0
2388 ...
2389 39 = /dev/cudb7 Callout device for ttyDB7
2391 206 char OnStream SC-x0 tape devices
2392 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2393 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2394 ...
2395 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2396 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2397 ...
2398 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2399 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2400 ...
2401 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2402 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2403 ...
2404 128 = /dev/nosst0 No rewind version of /dev/osst0
2405 129 = /dev/nosst1 No rewind version of /dev/osst1
2406 ...
2407 160 = /dev/nosst0l No rewind version of /dev/osst0l
2408 161 = /dev/nosst1l No rewind version of /dev/osst1l
2409 ...
2410 192 = /dev/nosst0m No rewind version of /dev/osst0m
2411 193 = /dev/nosst1m No rewind version of /dev/osst1m
2412 ...
2413 224 = /dev/nosst0a No rewind version of /dev/osst0a
2414 225 = /dev/nosst1a No rewind version of /dev/osst1a
2415 ...
2417 The OnStream SC-x0 SCSI tapes do not support the
2418 standard SCSI SASD command set and therefore need
2419 their own driver "osst". Note that the IDE, USB (and
2420 maybe ParPort) versions may be driven via ide-scsi or
2421 usb-storage SCSI emulation and this osst device and
2422 driver as well. The ADR-x0 drives are QIC-157
2423 compliant and don't need osst.
2425 207 char Compaq ProLiant health feature indicate
2426 0 = /dev/cpqhealth/cpqw Redirector interface
2427 1 = /dev/cpqhealth/crom EISA CROM
2428 2 = /dev/cpqhealth/cdt Data Table
2429 3 = /dev/cpqhealth/cevt Event Log
2430 4 = /dev/cpqhealth/casr Automatic Server Recovery
2431 5 = /dev/cpqhealth/cecc ECC Memory
2432 6 = /dev/cpqhealth/cmca Machine Check Architecture
2433 7 = /dev/cpqhealth/ccsm Deprecated CDT
2434 8 = /dev/cpqhealth/cnmi NMI Handling
2435 9 = /dev/cpqhealth/css Sideshow Management
2436 10 = /dev/cpqhealth/cram CMOS interface
2437 11 = /dev/cpqhealth/cpci PCI IRQ interface
2439 208 char User space serial ports
2440 0 = /dev/ttyU0 First user space serial port
2441 1 = /dev/ttyU1 Second user space serial port
2442 ...
2444 209 char User space serial ports (alternate devices)
2445 0 = /dev/cuu0 Callout device for ttyU0
2446 1 = /dev/cuu1 Callout device for ttyU1
2447 ...
2449 210 char SBE, Inc. sync/async serial card
2450 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2451 1 = /dev/sbei/dld0 Download device for board 0
2452 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2453 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2454 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2455 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2456 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2457 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2458 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2459 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2460 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2461 11 = /dev/sbei/dld1 Download device for board 1
2462 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2463 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2464 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2465 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2466 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2467 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2468 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2469 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2470 ...
2472 Yes, each board is really spaced 10 (decimal) apart.
2474 211 char Addinum CPCI1500 digital I/O card
2475 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2476 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2477 ...
2479 216 char USB BlueTooth devices
2480 0 = /dev/ttyUB0 First USB BlueTooth device
2481 1 = /dev/ttyUB1 Second USB BlueTooth device
2482 ...
2484 217 char USB BlueTooth devices (alternate devices)
2485 0 = /dev/cuub0 Callout device for ttyUB0
2486 1 = /dev/cuub1 Callout device for ttyUB1
2487 ...
2489 218 char The Logical Company bus Unibus/Qbus adapters
2490 0 = /dev/logicalco/bci/0 First bus adapter
2491 1 = /dev/logicalco/bci/1 First bus adapter
2492 ...
2494 219 char The Logical Company DCI-1300 digital I/O card
2495 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2496 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2497 ...
2499 220 char Myricom Myrinet "GM" board
2500 0 = /dev/myricom/gm0 First Myrinet GM board
2501 1 = /dev/myricom/gmp0 First board "root access"
2502 2 = /dev/myricom/gm1 Second Myrinet GM board
2503 3 = /dev/myricom/gmp1 Second board "root access"
2504 ...
2506 221 char VME bus
2507 0 = /dev/bus/vme/m0 First master image
2508 1 = /dev/bus/vme/m1 Second master image
2509 2 = /dev/bus/vme/m2 Third master image
2510 3 = /dev/bus/vme/m3 Fourth master image
2511 4 = /dev/bus/vme/s0 First slave image
2512 5 = /dev/bus/vme/s1 Second slave image
2513 6 = /dev/bus/vme/s2 Third slave image
2514 7 = /dev/bus/vme/s3 Fourth slave image
2515 8 = /dev/bus/vme/ctl Control
2517 It is expected that all VME bus drivers will use the
2518 same interface. For interface documentation see
2519 http://www.vmelinux.org/.
2521 224 char A2232 serial card
2522 0 = /dev/ttyY0 First A2232 port
2523 1 = /dev/ttyY1 Second A2232 port
2524 ...
2526 225 char A2232 serial card (alternate devices)
2527 0 = /dev/cuy0 Callout device for ttyY0
2528 1 = /dev/cuy1 Callout device for ttyY1
2529 ...
2531 226 char Direct Rendering Infrastructure (DRI)
2532 0 = /dev/dri/card0 First graphics card
2533 1 = /dev/dri/card1 Second graphics card
2534 ...
2536 227 char IBM 3270 terminal block-mode access
2537 0 = /dev/3270/tub Controlling interface
2538 1 = /dev/3270/tub1 First 3270 terminal
2539 2 = /dev/3270/tub2 Second 3270 terminal
2540 ...
2542 228 char IBM 3270 terminal Unix tty access
2543 1 = /dev/3270/tty1 First 3270 terminal
2544 2 = /dev/3270/tty2 Seconds 3270 terminal
2545 ...
2547 229 char IBM iSeries virtual console
2548 0 = /dev/iseries/vtty0 First console port
2549 1 = /dev/iseries/vtty1 Second console port
2550 ...
2552 230 char IBM iSeries virtual tape
2553 0 = /dev/iseries/vt0 First virtual tape, mode 0
2554 1 = /dev/iseries/vt1 Second virtual tape, mode 0
2555 ...
2556 32 = /dev/iseries/vt0l First virtual tape, mode 1
2557 33 = /dev/iseries/vt1l Second virtual tape, mode 1
2558 ...
2559 64 = /dev/iseries/vt0m First virtual tape, mode 2
2560 65 = /dev/iseries/vt1m Second virtual tape, mode 2
2561 ...
2562 96 = /dev/iseries/vt0a First virtual tape, mode 3
2563 97 = /dev/iseries/vt1a Second virtual tape, mode 3
2564 ...
2565 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind
2566 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind
2567 ...
2568 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind
2569 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind
2570 ...
2571 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind
2572 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind
2573 ...
2574 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind
2575 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind
2576 ...
2578 "No rewind" refers to the omission of the default
2579 automatic rewind on device close. The MTREW or MTOFFL
2580 ioctl()'s can be used to rewind the tape regardless of
2581 the device used to access it.
2583 231-239 UNASSIGNED
2585 240-254 LOCAL/EXPERIMENTAL USE
2587 255 RESERVED
2589 This major is reserved to assist the expansion to a
2590 larger number space. No device nodes with this major
2591 should ever be created on the filesystem.
2593 **** ADDITIONAL /dev DIRECTORY ENTRIES
2595 This section details additional entries that should or may exist in
2596 the /dev directory. It is preferred that symbolic links use the same
2597 form (absolute or relative) as is indicated here. Links are
2598 classified as "hard" or "symbolic" depending on the preferred type of
2599 link; if possible, the indicated type of link should be used.
2602 Compulsory links
2604 These links should exist on all systems:
2606 /dev/fd /proc/self/fd symbolic File descriptors
2607 /dev/stdin fd/0 symbolic stdin file descriptor
2608 /dev/stdout fd/1 symbolic stdout file descriptor
2609 /dev/stderr fd/2 symbolic stderr file descriptor
2610 /dev/nfsd socksys symbolic Required by iBCS-2
2611 /dev/X0R null symbolic Required by iBCS-2
2613 Note: /dev/X0R is <letter X>-<digit 0>-<letter R>.
2615 Recommended links
2617 It is recommended that these links exist on all systems:
2619 /dev/core /proc/kcore symbolic Backward compatibility
2620 /dev/ramdisk ram0 symbolic Backward compatibility
2621 /dev/ftape qft0 symbolic Backward compatibility
2622 /dev/bttv0 video0 symbolic Backward compatibility
2623 /dev/radio radio0 symbolic Backward compatibility
2624 /dev/i2o* /dev/i2o/* symbolic Backward compatibility
2625 /dev/scd? sr? hard Alternate SCSI CD-ROM name
2627 Locally defined links
2629 The following links may be established locally to conform to the
2630 configuration of the system. This is merely a tabulation of existing
2631 practice, and does not constitute a recommendation. However, if they
2632 exist, they should have the following uses.
2634 /dev/mouse mouse port symbolic Current mouse device
2635 /dev/tape tape device symbolic Current tape device
2636 /dev/cdrom CD-ROM device symbolic Current CD-ROM device
2637 /dev/cdwriter CD-writer symbolic Current CD-writer device
2638 /dev/scanner scanner symbolic Current scanner device
2639 /dev/modem modem port symbolic Current dialout device
2640 /dev/root root device symbolic Current root filesystem
2641 /dev/swap swap device symbolic Current swap device
2643 /dev/modem should not be used for a modem which supports dialin as
2644 well as dialout, as it tends to cause lock file problems. If it
2645 exists, /dev/modem should point to the appropriate primary TTY device
2646 (the use of the alternate callout devices is deprecated).
2648 For SCSI devices, /dev/tape and /dev/cdrom should point to the
2649 ``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas
2650 /dev/cdwriter and /dev/scanner should point to the appropriate generic
2651 SCSI devices (/dev/sg*).
2653 /dev/mouse may point to a primary serial TTY device, a hardware mouse
2654 device, or a socket for a mouse driver program (e.g. /dev/gpmdata).
2656 Sockets and pipes
2658 Non-transient sockets and named pipes may exist in /dev. Common entries are:
2660 /dev/printer socket lpd local socket
2661 /dev/log socket syslog local socket
2662 /dev/gpmdata socket gpm mouse multiplexer
2664 Mount points
2666 The following names are reserved for mounting special filesystems
2667 under /dev. These special filesystems provide kernel interfaces that
2668 cannot be provided with standard device nodes.
2670 /dev/pts devpts PTY slave filesystem
2671 /dev/shm tmpfs POSIX shared memory maintenance access
2673 **** TERMINAL DEVICES
2675 Terminal, or TTY devices are a special class of character devices. A
2676 terminal device is any device that could act as a controlling terminal
2677 for a session; this includes virtual consoles, serial ports, and
2678 pseudoterminals (PTYs).
2680 All terminal devices share a common set of capabilities known as line
2681 diciplines; these include the common terminal line dicipline as well
2682 as SLIP and PPP modes.
2684 All terminal devices are named similarly; this section explains the
2685 naming and use of the various types of TTYs. Note that the naming
2686 conventions include several historical warts; some of these are
2687 Linux-specific, some were inherited from other systems, and some
2688 reflect Linux outgrowing a borrowed convention.
2690 A hash mark (#) in a device name is used here to indicate a decimal
2691 number without leading zeroes.
2693 Virtual consoles and the console device
2695 Virtual consoles are full-screen terminal displays on the system video
2696 monitor. Virtual consoles are named /dev/tty#, with numbering
2697 starting at /dev/tty1; /dev/tty0 is the current virtual console.
2698 /dev/tty0 is the device that should be used to access the system video
2699 card on those architectures for which the frame buffer devices
2700 (/dev/fb*) are not applicable. Do not use /dev/console
2701 for this purpose.
2703 The console device, /dev/console, is the device to which system
2704 messages should be sent, and on which logins should be permitted in
2705 single-user mode. Starting with Linux 2.1.71, /dev/console is managed
2706 by the kernel; for previous versions it should be a symbolic link to
2707 either /dev/tty0, a specific virtual console such as /dev/tty1, or to
2708 a serial port primary (tty*, not cu*) device, depending on the
2709 configuration of the system.
2711 Serial ports
2713 Serial ports are RS-232 serial ports and any device which simulates
2714 one, either in hardware (such as internal modems) or in software (such
2715 as the ISDN driver.) Under Linux, each serial ports has two device
2716 names, the primary or callin device and the alternate or callout one.
2717 Each kind of device is indicated by a different letter. For any
2718 letter X, the names of the devices are /dev/ttyX# and /dev/cux#,
2719 respectively; for historical reasons, /dev/ttyS# and /dev/ttyC#
2720 correspond to /dev/cua# and /dev/cub#. In the future, it should be
2721 expected that multiple letters will be used; all letters will be upper
2722 case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the
2723 "cu" device (e.g. /dev/cudp#).
2725 The names /dev/ttyQ# and /dev/cuq# are reserved for local use.
2727 The alternate devices provide for kernel-based exclusion and somewhat
2728 different defaults than the primary devices. Their main purpose is to
2729 allow the use of serial ports with programs with no inherent or broken
2730 support for serial ports. Their use is deprecated, and they may be
2731 removed from a future version of Linux.
2733 Arbitration of serial ports is provided by the use of lock files with
2734 the names /var/lock/LCK..ttyX#. The contents of the lock file should
2735 be the PID of the locking process as an ASCII number.
2737 It is common practice to install links such as /dev/modem
2738 which point to serial ports. In order to ensure proper locking in the
2739 presence of these links, it is recommended that software chase
2740 symlinks and lock all possible names; additionally, it is recommended
2741 that a lock file be installed with the corresponding alternate
2742 device. In order to avoid deadlocks, it is recommended that the locks
2743 are acquired in the following order, and released in the reverse:
2745 1. The symbolic link name, if any (/var/lock/LCK..modem)
2746 2. The "tty" name (/var/lock/LCK..ttyS2)
2747 3. The alternate device name (/var/lock/LCK..cua2)
2749 In the case of nested symbolic links, the lock files should be
2750 installed in the order the symlinks are resolved.
2752 Under no circumstances should an application hold a lock while waiting
2753 for another to be released. In addition, applications which attempt
2754 to create lock files for the corresponding alternate device names
2755 should take into account the possibility of being used on a non-serial
2756 port TTY, for which no alternate device would exist.
2758 Pseudoterminals (PTYs)
2760 Pseudoterminals, or PTYs, are used to create login sessions or provide
2761 other capabilities requiring a TTY line dicipline (including SLIP or
2762 PPP capability) to arbitrary data-generation processes. Each PTY has
2763 a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named
2764 /dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by
2765 allowing each master side to be opened only once.
2767 Once the master side has been opened, the corresponding slave device
2768 can be used in the same manner as any TTY device. The master and
2769 slave devices are connected by the kernel, generating the equivalent
2770 of a bidirectional pipe with TTY capabilities.
2772 Recent versions of the Linux kernels and GNU libc contain support for
2773 the System V/Unix98 naming scheme for PTYs, which assigns a common
2774 device, /dev/ptmx, to all the masters (opening it will automatically
2775 give you a previously unassigned PTY) and a subdirectory, /dev/pts,
2776 for the slaves; the slaves are named with decimal integers (/dev/pts/#
2777 in our notation). This removes the problem of exhausting the
2778 namespace and enables the kernel to automatically create the device
2779 nodes for the slaves on demand using the "devpts" filesystem.