1 LINUX ALLOCATED DEVICES
2 Maintained by H. Peter Anvin <device@lanana.org>
3
4 Last revised: December 29, 2000
5
6 This list is the Linux Device List, the official registry of allocated
7 device numbers and /dev directory nodes for the Linux operating
8 system.
9
10 The latest version of this list is included with the Linux kernel
11 sources. It is also available separately from
12 http://www.kernel.org/pub/linux/docs/device-list/ or
13 ftp://ftp.kernel.org/pub/linux/docs/device-list/. The LaTeX version
14 of this document is no longer maintained.
15
16 This document is included by reference into the Filesystem Hierarchy
17 Standard (FHS). The FHS is available from http://www.pathname.com/fhs/.
18
19 Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga
20 platform only. Allocations marked (68k/Atari) apply to Linux/68k on
21 the Atari platform only.
22
23 The symbol {2.6} means the allocation is obsolete and scheduled for
24 removal once kernel version 2.6 (or equivalent) is released.
25
26 This document is in the public domain. The author requests, however,
27 that semantically altered versions are not distributed without
28 permission of the author, assuming the author can be contacted without
29 an unreasonable effort.
30
31 In particular, please don't sent patches for this list to Linus, at
32 least not without contacting me first.
33
34 I do not have any information about these devices beyond what appears
35 on this list. Any such information requests will be deleted without
36 reply.
37
38
39 **** DEVICE DRIVERS AUTHORS PLEASE READ THIS ****
40
41 To have a major number allocated, or a minor number in situations
42 where that applies (e.g. busmice), please contact me with the
43 appropriate device information. Also, if you have additional
44 information regarding any of the devices listed below, or if I have
45 made a mistake, I would greatly appreciate a note.
46
47 I do, however, make a few requests about the nature of your report.
48 This is necessary for me to be able to keep this list up to date and
49 correct in a timely manner. First of all, *please* send it to the
50 correct address... <device@lanana.org>. I receive hundreds of email
51 messages a day, so mail sent to other addresses may very well get lost
52 in the avalanche. Please put in a descriptive subject, so I can find
53 your mail again should I need to. Too many people send me email
54 saying just "device number request" in the subject.
55
56 Second, please include a description of the device *in the same format
57 as this list*. The reason for this is that it is the only way I have
58 found to ensure I have all the requisite information to publish your
59 device and avoid conflicts.
60
61 Third, please don't assume that the distributed version of the list is
62 up to date. Due to the number of registrations I have to maintain it
63 in "batch mode", so there is likely additional registrations that
64 haven't been listed yet.
65
66 Finally, sometimes I have to play "namespace police." Please don't be
67 offended. I often get submissions for /dev names that would be bound
68 to cause conflicts down the road. I am trying to avoid getting in a
69 situation where we would have to suffer an incompatible forward
70 change. Therefore, please consult with me *before* you make your
71 device names and numbers in any way public, at least to the point
72 where it would be at all difficult to get them changed.
73
74 Your cooperation is appreciated.
75
76
77 0 Unnamed devices (e.g. non-device mounts)
78 0 = reserved as null device number
79
80 1 char Memory devices
81 1 = /dev/mem Physical memory access
82 2 = /dev/kmem Kernel virtual memory access
83 3 = /dev/null Null device
84 4 = /dev/port I/O port access
85 5 = /dev/zero Null byte source
86 6 = /dev/core OBSOLETE - replaced by /proc/kcore
87 7 = /dev/full Returns ENOSPC on write
88 8 = /dev/random Nondeterministic random number gen.
89 9 = /dev/urandom Faster, less secure random number gen.
90 10 = /dev/aio Asyncronous I/O notification interface
91 block RAM disk
92 0 = /dev/ram0 First RAM disk
93 1 = /dev/ram1 Second RAM disk
94 ...
95 250 = /dev/initrd Initial RAM disk {2.6}
96
97 Older kernels had /dev/ramdisk (1, 1) here.
98 /dev/initrd refers to a RAM disk which was preloaded
99 by the boot loader; newer kernels use /dev/ram0 for
100 the initrd.
101
102 2 char Pseudo-TTY masters
103 0 = /dev/ptyp0 First PTY master
104 1 = /dev/ptyp1 Second PTY master
105 ...
106 255 = /dev/ptyef 256th PTY master
107
108 Pseudo-tty's are named as follows:
109 * Masters are "pty", slaves are "tty";
110 * the fourth letter is one of pqrstuvwxyzabcde indicating
111 the 1st through 16th series of 16 pseudo-ttys each, and
112 * the fifth letter is one of 0123456789abcdef indicating
113 the position within the series.
114
115 These are the old-style (BSD) PTY devices; Unix98
116 devices are on major 128 and above and use the PTY
117 master multiplex (/dev/ptmx) to acquire a PTY on
118 demand.
119
120 block Floppy disks
121 0 = /dev/fd0 Controller 0, drive 0, autodetect
122 1 = /dev/fd1 Controller 0, drive 1, autodetect
123 2 = /dev/fd2 Controller 0, drive 2, autodetect
124 3 = /dev/fd3 Controller 0, drive 3, autodetect
125 128 = /dev/fd4 Controller 1, drive 0, autodetect
126 129 = /dev/fd5 Controller 1, drive 1, autodetect
127 130 = /dev/fd6 Controller 1, drive 2, autodetect
128 131 = /dev/fd7 Controller 1, drive 3, autodetect
129
130 To specify format, add to the autodetect device number:
131 0 = /dev/fd? Autodetect format
132 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
133 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
134 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
135 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
136 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
137 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
138 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
139 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
140 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
141 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
142 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
143
144 12 = /dev/fd?u360 3.5" 360K Double Density(2)
145 16 = /dev/fd?u720 3.5" 720K Double Density(1)
146 120 = /dev/fd?u800 3.5" 800K Double Density(2)
147 52 = /dev/fd?u820 3.5" 820K Double Density
148 68 = /dev/fd?u830 3.5" 830K Double Density
149 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
150 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
151 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
152 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
153 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
154 60 = /dev/fd?u1722 3.5" 1722K High Density
155 76 = /dev/fd?u1743 3.5" 1743K High Density
156 96 = /dev/fd?u1760 3.5" 1760K High Density
157 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
158 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
159 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
160 104 = /dev/fd?u3200 3.5" 3200K Extra Density
161 108 = /dev/fd?u3520 3.5" 3520K Extra Density
162 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
163
164 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
165
166 (1) Autodetectable format
167 (2) Autodetectable format in a Double Density (720K) drive only
168 (3) Autodetectable format in a High Density (1440K) drive only
169
170 NOTE: The letter in the device name (d, q, h or u)
171 signifies the type of drive: 5.25" Double Density (d),
172 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
173 (any model, u). The use of the capital letters D, H
174 and E for the 3.5" models have been deprecated, since
175 the drive type is insignificant for these devices.
176
177 3 char Pseudo-TTY slaves
178 0 = /dev/ttyp0 First PTY slave
179 1 = /dev/ttyp1 Second PTY slave
180 ...
181 255 = /dev/ttyef 256th PTY slave
182
183 These are the old-style (BSD) PTY devices; Unix98
184 devices are on major 136 and above.
185
186 block First MFM, RLL and IDE hard disk/CD-ROM interface
187 0 = /dev/hda Master: whole disk (or CD-ROM)
188 64 = /dev/hdb Slave: whole disk (or CD-ROM)
189
190 For partitions, add to the whole disk device number:
191 0 = /dev/hd? Whole disk
192 1 = /dev/hd?1 First partition
193 2 = /dev/hd?2 Second partition
194 ...
195 63 = /dev/hd?63 63rd partition
196
197 For Linux/i386, partitions 1-4 are the primary
198 partitions, and 5 and above are logical partitions.
199 Other versions of Linux use partitioning schemes
200 appropriate to their respective architectures.
201
202 4 char TTY devices
203 0 = /dev/tty0 Current virtual console
204
205 1 = /dev/tty1 First virtual console
206 ...
207 63 = /dev/tty63 63rd virtual console
208 64 = /dev/ttyS0 First UART serial port
209 ...
210 255 = /dev/ttyS191 192nd UART serial port
211
212 UART serial ports refer to 8250/16450/16550 series devices.
213
214 Older versions of the Linux kernel used this major
215 number for BSD PTY devices. As of Linux 2.1.115, this
216 is no longer supported. Use major numbers 2 and 3.
217
218 5 char Alternate TTY devices
219 0 = /dev/tty Current TTY device
220 1 = /dev/console System console
221 2 = /dev/ptmx PTY master multiplex
222 64 = /dev/cua0 Callout device for ttyS0
223 ...
224 255 = /dev/cua191 Callout device for ttyS191
225
226 (5,1) is /dev/console starting with Linux 2.1.71. See
227 the section on terminal devices for more information
228 on /dev/console.
229
230 6 char Parallel printer devices
231 0 = /dev/lp0 Parallel printer on parport0
232 1 = /dev/lp1 Parallel printer on parport1
233 ...
234
235 Current Linux kernels no longer have a fixed mapping
236 between parallel ports and I/O addresses. Instead,
237 they are redirected through the parport multiplex layer.
238
239 7 char Virtual console capture devices
240 0 = /dev/vcs Current vc text contents
241 1 = /dev/vcs1 tty1 text contents
242 ...
243 63 = /dev/vcs63 tty63 text contents
244 128 = /dev/vcsa Current vc text/attribute contents
245 129 = /dev/vcsa1 tty1 text/attribute contents
246 ...
247 191 = /dev/vcsa63 tty63 text/attribute contents
248
249 NOTE: These devices permit both read and write access.
250
251 block Loopback devices
252 0 = /dev/loop0 First loopback device
253 1 = /dev/loop1 Second loopback device
254 ...
255
256 The loopback devices are used to mount filesystems not
257 associated with block devices. The binding to the
258 loopback devices is handled by mount(8) or losetup(8).
259
260 8 block SCSI disk devices (0-15)
261 0 = /dev/sda First SCSI disk whole disk
262 16 = /dev/sdb Second SCSI disk whole disk
263 32 = /dev/sdc Third SCSI disk whole disk
264 ...
265 240 = /dev/sdp Sixteenth SCSI disk whole disk
266
267 Partitions are handled in the same way as for IDE
268 disks (see major number 3) except that the limit on
269 partitions is 15.
270
271 9 char SCSI tape devices
272 0 = /dev/st0 First SCSI tape, mode 0
273 1 = /dev/st1 Second SCSI tape, mode 0
274 ...
275 32 = /dev/st0l First SCSI tape, mode 1
276 33 = /dev/st1l Second SCSI tape, mode 1
277 ...
278 64 = /dev/st0m First SCSI tape, mode 2
279 65 = /dev/st1m Second SCSI tape, mode 2
280 ...
281 96 = /dev/st0a First SCSI tape, mode 3
282 97 = /dev/st1a Second SCSI tape, mode 3
283 ...
284 128 = /dev/nst0 First SCSI tape, mode 0, no rewind
285 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
286 ...
287 160 = /dev/nst0l First SCSI tape, mode 1, no rewind
288 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
289 ...
290 192 = /dev/nst0m First SCSI tape, mode 2, no rewind
291 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
292 ...
293 224 = /dev/nst0a First SCSI tape, mode 3, no rewind
294 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
295 ...
296
297 "No rewind" refers to the omission of the default
298 automatic rewind on device close. The MTREW or MTOFFL
299 ioctl()'s can be used to rewind the tape regardless of
300 the device used to access it.
301
302 block Metadisk (RAID) devices
303 0 = /dev/md0 First metadisk group
304 1 = /dev/md1 Second metadisk group
305 ...
306
307 The metadisk driver is used to span a
308 filesystem across multiple physical disks.
309
310 10 char Non-serial mice, misc features
311 0 = /dev/logibm Logitech bus mouse
312 1 = /dev/psaux PS/2-style mouse port
313 2 = /dev/inportbm Microsoft Inport bus mouse
314 3 = /dev/atibm ATI XL bus mouse
315 4 = /dev/jbm J-mouse
316 4 = /dev/amigamouse Amiga mouse (68k/Amiga)
317 5 = /dev/atarimouse Atari mouse
318 6 = /dev/sunmouse Sun mouse
319 7 = /dev/amigamouse1 Second Amiga mouse
320 8 = /dev/smouse Simple serial mouse driver
321 9 = /dev/pc110pad IBM PC-110 digitizer pad
322 10 = /dev/adbmouse Apple Desktop Bus mouse
323 11 = /dev/vrtpanel Vr41xx embedded touch panel
324 13 = /dev/vpcmouse Connectix Virtual PC Mouse
325 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
326 15 = /dev/touchscreen/mk712 MK712 touchscreen
327 128 = /dev/beep Fancy beep device
328 129 = /dev/modreq Kernel module load request {2.6}
329 130 = /dev/watchdog Watchdog timer port
330 131 = /dev/temperature Machine internal temperature
331 132 = /dev/hwtrap Hardware fault trap
332 133 = /dev/exttrp External device trap
333 134 = /dev/apm_bios Advanced Power Management BIOS
334 135 = /dev/rtc Real Time Clock
335 139 = /dev/openprom SPARC OpenBoot PROM
336 140 = /dev/relay8 Berkshire Products Octal relay card
337 141 = /dev/relay16 Berkshire Products ISO-16 relay card
338 142 = /dev/msr x86 model-specific registers {2.6}
339 143 = /dev/pciconf PCI configuration space
340 144 = /dev/nvram Non-volatile configuration RAM
341 145 = /dev/hfmodem Soundcard shortwave modem control {2.6}
342 146 = /dev/graphics Linux/SGI graphics device
343 147 = /dev/opengl Linux/SGI OpenGL pipe
344 148 = /dev/gfx Linux/SGI graphics effects device
345 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
346 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
347 151 = /dev/led Front panel LEDs
348 153 = /dev/mergemem Memory merge device
349 154 = /dev/pmu Macintosh PowerBook power manager
350 155 = /dev/isictl MultiTech ISICom serial control
351 156 = /dev/lcd Front panel LCD display
352 157 = /dev/ac Applicom Intl Profibus card
353 158 = /dev/nwbutton Netwinder external button
354 159 = /dev/nwdebug Netwinder debug interface
355 160 = /dev/nwflash Netwinder flash memory
356 161 = /dev/userdma User-space DMA access
357 162 = /dev/smbus System Management Bus
358 163 = /dev/lik Logitech Internet Keyboard
359 164 = /dev/ipmo Intel Intelligent Platform Management
360 165 = /dev/vmmon VMWare virtual machine monitor
361 166 = /dev/i2o/ctl I2O configuration manager
362 167 = /dev/specialix_sxctl Specialix serial control
363 168 = /dev/tcldrv Technology Concepts serial control
364 169 = /dev/specialix_rioctl Specialix RIO serial control
365 170 = /dev/smapi IBM Thinkpad SMAPI
366 171 = /dev/srripc QNX4 API IPC manager
367 172 = /dev/usemaclone Semaphore clone device
368 173 = /dev/ipmikcs Intelligent Platform Management
369 174 = /dev/uctrl SPARCbook 3 microcontroller
370 175 = /dev/agpgart AGP Graphics Address Remapping Table
371 176 = /dev/gtrsc Gorgy Timing radio clock
372 177 = /dev/cbm Serial CBM bus
373 178 = /dev/jsflash JavaStation OS flash SIMM
374 179 = /dev/xsvc High-speed shared-mem/semaphore service
375 180 = /dev/vrbuttons Vr41xx button input device
376 181 = /dev/toshiba Toshiba laptop SMM support
377 182 = /dev/perfctr Performance-monitoring counters
378 183 = /dev/intel_rng Intel i8x0 random number generator
379 184 = /dev/cpu/microcode CPU microcode update interface
380 186 = /dev/atomicps Atomic shapshot of process state data
381 187 = /dev/irnet IrNET device
382 188 = /dev/smbusbios SMBus BIOS
383 189 = /dev/ussp_ctl User space serial port control
384 190 = /dev/crash Mission Critical Linux crash dump facility
385 191 = /dev/pcl181 <information missing>
386 192 = /dev/nas_xbus NAS xbus LCD/buttons access
387 193 = /dev/d7s SPARC 7-segment display
388 194 = /dev/zkshim Zero-Knowledge network shim control
389 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
390 198 = /dev/sexec Signed executable interface
391 199 = /dev/scanners/cuecat :CueCat barcode scanner
392 200 = /dev/net/tun TAP/TUN network device
393 201 = /dev/button/gulpb Transmeta GULP-B buttons
394 204 = /dev/video/em8300 EM8300 DVD decoder control
395 205 = /dev/video/em8300_mv EM8300 DVD decoder video
396 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
397 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
398 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
399 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
400 240-255 Reserved for local use
401
402 11 char Raw keyboard device
403 0 = /dev/kbd Raw keyboard device
404
405 The raw keyboard device is used on Linux/SPARC only.
406
407 block SCSI CD-ROM devices
408 0 = /dev/sr0 First SCSI CD-ROM
409 1 = /dev/sr1 Second SCSI CD-ROM
410 ...
411
412 The prefix /dev/scd instead of /dev/sr has been used
413 as well, and might make more sense.
414
415 12 char QIC-02 tape
416 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
417 3 = /dev/tpqic11 QIC-11, rewind-on-close
418 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
419 5 = /dev/tpqic24 QIC-24, rewind-on-close
420 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
421 7 = /dev/tpqic120 QIC-120, rewind-on-close
422 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
423 9 = /dev/tpqic150 QIC-150, rewind-on-close
424
425 The device names specified are proposed -- if there
426 are "standard" names for these devices, please let me know.
427
428 block MSCDEX CD-ROM callback support {2.6}
429 0 = /dev/dos_cd0 First MSCDEX CD-ROM
430 1 = /dev/dos_cd1 Second MSCDEX CD-ROM
431 ...
432
433 13 char PC speaker (OBSOLETE)
434 0 = /dev/pcmixer Emulates /dev/mixer
435 1 = /dev/pcsp Emulates /dev/dsp (8-bit)
436 4 = /dev/pcaudio Emulates /dev/audio
437 5 = /dev/pcsp16 Emulates /dev/dsp (16-bit)
438
439 The current PC speaker driver uses the Open Sound
440 System interface, and these devices are obsolete.
441
442 block 8-bit MFM/RLL/IDE controller
443 0 = /dev/xda First XT disk whole disk
444 64 = /dev/xdb Second XT disk whole disk
445
446 Partitions are handled in the same way as IDE disks
447 (see major number 3).
448
449 14 char Open Sound System (OSS)
450 0 = /dev/mixer Mixer control
451 1 = /dev/sequencer Audio sequencer
452 2 = /dev/midi00 First MIDI port
453 3 = /dev/dsp Digital audio
454 4 = /dev/audio Sun-compatible digital audio
455 6 = /dev/sndstat Sound card status information {2.6}
456 7 = /dev/audioctl SPARC audio control device
457 8 = /dev/sequencer2 Sequencer -- alternate device
458 16 = /dev/mixer1 Second soundcard mixer control
459 17 = /dev/patmgr0 Sequencer patch manager
460 18 = /dev/midi01 Second MIDI port
461 19 = /dev/dsp1 Second soundcard digital audio
462 20 = /dev/audio1 Second soundcard Sun digital audio
463 33 = /dev/patmgr1 Sequencer patch manager
464 34 = /dev/midi02 Third MIDI port
465 50 = /dev/midi03 Fourth MIDI port
466 block BIOS harddrive callback support {2.6}
467 0 = /dev/dos_hda First BIOS harddrive whole disk
468 64 = /dev/dos_hdb Second BIOS harddrive whole disk
469 128 = /dev/dos_hdc Third BIOS harddrive whole disk
470 192 = /dev/dos_hdd Fourth BIOS harddrive whole disk
471
472 Partitions are handled in the same way as IDE disks
473 (see major number 3).
474
475 15 char Joystick
476 0 = /dev/js0 First analog joystick
477 1 = /dev/js1 Second analog joystick
478 ...
479 128 = /dev/djs0 First digital joystick
480 129 = /dev/djs1 Second digital joystick
481 ...
482 block Sony CDU-31A/CDU-33A CD-ROM
483 0 = /dev/sonycd Sony CDU-31a CD-ROM
484
485 16 char Non-SCSI scanners
486 0 = /dev/gs4500 Genius 4500 handheld scanner
487 block GoldStar CD-ROM
488 0 = /dev/gscd GoldStar CD-ROM
489
490 17 char Chase serial card
491 0 = /dev/ttyH0 First Chase port
492 1 = /dev/ttyH1 Second Chase port
493 ...
494 block Optics Storage CD-ROM
495 0 = /dev/optcd Optics Storage CD-ROM
496
497 18 char Chase serial card - alternate devices
498 0 = /dev/cuh0 Callout device for ttyH0
499 1 = /dev/cuh1 Callout device for ttyH1
500 ...
501 block Sanyo CD-ROM
502 0 = /dev/sjcd Sanyo CD-ROM
503
504 19 char Cyclades serial card
505 0 = /dev/ttyC0 First Cyclades port
506 ...
507 31 = /dev/ttyC31 32nd Cyclades port
508 block "Double" compressed disk
509 0 = /dev/double0 First compressed disk
510 ...
511 7 = /dev/double7 Eighth compressed disk
512 128 = /dev/cdouble0 Mirror of first compressed disk
513 ...
514 135 = /dev/cdouble7 Mirror of eighth compressed disk
515
516 See the Double documentation for the meaning of the
517 mirror devices.
518
519 20 char Cyclades serial card - alternate devices
520 0 = /dev/cub0 Callout device for ttyC0
521 ...
522 31 = /dev/cub31 Callout device for ttyC31
523 block Hitachi CD-ROM (under development)
524 0 = /dev/hitcd Hitachi CD-ROM
525
526 21 char Generic SCSI access
527 0 = /dev/sg0 First generic SCSI device
528 1 = /dev/sg1 Second generic SCSI device
529 ...
530
531 Most distributions name these /dev/sga, /dev/sgb...;
532 this sets an unnecessary limit of 26 SCSI devices in
533 the system and is counter to standard Linux
534 device-naming practice.
535
536 block Acorn MFM hard drive interface
537 0 = /dev/mfma First MFM drive whole disk
538 64 = /dev/mfmb Second MFM drive whole disk
539
540 This device is used on the ARM-based Acorn RiscPC.
541 Partitions are handled the same way as for IDE disks
542 (see major number 3).
543
544 22 char Digiboard serial card
545 0 = /dev/ttyD0 First Digiboard port
546 1 = /dev/ttyD1 Second Digiboard port
547 ...
548 block Second IDE hard disk/CD-ROM interface
549 0 = /dev/hdc Master: whole disk (or CD-ROM)
550 64 = /dev/hdd Slave: whole disk (or CD-ROM)
551
552 Partitions are handled the same way as for the first
553 interface (see major number 3).
554
555 23 char Digiboard serial card - alternate devices
556 0 = /dev/cud0 Callout device for ttyD0
557 1 = /dev/cud1 Callout device for ttyD1
558 ...
559 block Mitsumi proprietary CD-ROM
560 0 = /dev/mcd Mitsumi CD-ROM
561
562 24 char Stallion serial card
563 0 = /dev/ttyE0 Stallion port 0 card 0
564 1 = /dev/ttyE1 Stallion port 1 card 0
565 ...
566 64 = /dev/ttyE64 Stallion port 0 card 1
567 65 = /dev/ttyE65 Stallion port 1 card 1
568 ...
569 128 = /dev/ttyE128 Stallion port 0 card 2
570 129 = /dev/ttyE129 Stallion port 1 card 2
571 ...
572 192 = /dev/ttyE192 Stallion port 0 card 3
573 193 = /dev/ttyE193 Stallion port 1 card 3
574 ...
575 block Sony CDU-535 CD-ROM
576 0 = /dev/cdu535 Sony CDU-535 CD-ROM
577
578 25 char Stallion serial card - alternate devices
579 0 = /dev/cue0 Callout device for ttyE0
580 1 = /dev/cue1 Callout device for ttyE1
581 ...
582 64 = /dev/cue64 Callout device for ttyE64
583 65 = /dev/cue65 Callout device for ttyE65
584 ...
585 128 = /dev/cue128 Callout device for ttyE128
586 129 = /dev/cue129 Callout device for ttyE129
587 ...
588 192 = /dev/cue192 Callout device for ttyE192
589 193 = /dev/cue193 Callout device for ttyE193
590 ...
591 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
592 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
593 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
594 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
595 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
596
597 26 char Quanta WinVision frame grabber {2.6}
598 0 = /dev/wvisfgrab Quanta WinVision frame grabber
599 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
600 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
601 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
602 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
603 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
604
605 27 char QIC-117 tape
606 0 = /dev/qft0 Unit 0, rewind-on-close
607 1 = /dev/qft1 Unit 1, rewind-on-close
608 2 = /dev/qft2 Unit 2, rewind-on-close
609 3 = /dev/qft3 Unit 3, rewind-on-close
610 4 = /dev/nqft0 Unit 0, no rewind-on-close
611 5 = /dev/nqft1 Unit 1, no rewind-on-close
612 6 = /dev/nqft2 Unit 2, no rewind-on-close
613 7 = /dev/nqft3 Unit 3, no rewind-on-close
614 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
615 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
616 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
617 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
618 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
619 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
620 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
621 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
622 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
623 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
624 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
625 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
626 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
627 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
628 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
629 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
630 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
631 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
632 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
633 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
634 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
635
636 28 char Stallion serial card - card programming
637 0 = /dev/staliomem0 First Stallion card I/O memory
638 1 = /dev/staliomem1 Second Stallion card I/O memory
639 2 = /dev/staliomem2 Third Stallion card I/O memory
640 3 = /dev/staliomem3 Fourth Stallion card I/O memory
641 char Atari SLM ACSI laser printer (68k/Atari)
642 0 = /dev/slm0 First SLM laser printer
643 1 = /dev/slm1 Second SLM laser printer
644 ...
645 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
646 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
647 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
648 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
649 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
650 block ACSI disk (68k/Atari)
651 0 = /dev/ada First ACSI disk whole disk
652 16 = /dev/adb Second ACSI disk whole disk
653 32 = /dev/adc Third ACSI disk whole disk
654 ...
655 240 = /dev/adp 16th ACSI disk whole disk
656
657 Partitions are handled in the same way as for IDE
658 disks (see major number 3) except that the limit on
659 partitions is 15, like SCSI.
660
661 29 char Universal frame buffer
662 0 = /dev/fb0 First frame buffer
663 32 = /dev/fb1 Second frame buffer
664 ...
665 224 = /dev/fb7 Eighth frame buffer
666
667 All additional minor numbers are reserved.
668
669 block Aztech/Orchid/Okano/Wearnes CD-ROM
670 0 = /dev/aztcd Aztech CD-ROM
671
672 30 char iBCS-2 compatibility devices
673 0 = /dev/socksys Socket access
674 1 = /dev/spx SVR3 local X interface
675 2 = /dev/inet/arp Network access
676 2 = /dev/inet/icmp Network access
677 2 = /dev/inet/ip Network access
678 2 = /dev/inet/udp Network access
679 2 = /dev/inet/tcp Network access
680
681 Additionally, iBCS-2 requires /dev/nfsd to be a link
682 to /dev/socksys, and /dev/X0R to be a link to
683 /dev/null.
684
685 block Philips LMS CM-205 CD-ROM
686 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
687
688 /dev/lmscd is an older name for this device. This
689 driver does not work with the CM-205MS CD-ROM.
690
691 31 char MPU-401 MIDI
692 0 = /dev/mpu401data MPU-401 data port
693 1 = /dev/mpu401stat MPU-401 status port
694 block ROM/flash memory card
695 0 = /dev/rom0 First ROM card (rw)
696 ...
697 7 = /dev/rom7 Eighth ROM card (rw)
698 8 = /dev/rrom0 First ROM card (ro)
699 ...
700 15 = /dev/rrom7 Eighth ROM card (ro)
701 16 = /dev/flash0 First flash memory card (rw)
702 ...
703 23 = /dev/flash7 Eighth flash memory card (rw)
704 24 = /dev/rflash0 First flash memory card (ro)
705 ...
706 31 = /dev/rflash7 Eighth flash memory card (ro)
707
708 The read-write (rw) devices support back-caching
709 written data in RAM, as well as writing to flash RAM
710 devices. The read-only devices (ro) support reading
711 only.
712
713 32 char Specialix serial card
714 0 = /dev/ttyX0 First Specialix port
715 1 = /dev/ttyX1 Second Specialix port
716 ...
717 block Philips LMS CM-206 CD-ROM
718 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
719
720 33 char Specialix serial card - alternate devices
721 0 = /dev/cux0 Callout device for ttyX0
722 1 = /dev/cux1 Callout device for ttyX1
723 ...
724 block Third IDE hard disk/CD-ROM interface
725 0 = /dev/hde Master: whole disk (or CD-ROM)
726 64 = /dev/hdf Slave: whole disk (or CD-ROM)
727
728 Partitions are handled the same way as for the first
729 interface (see major number 3).
730
731 34 char Z8530 HDLC driver
732 0 = /dev/scc0 First Z8530, first port
733 1 = /dev/scc1 First Z8530, second port
734 2 = /dev/scc2 Second Z8530, first port
735 3 = /dev/scc3 Second Z8530, second port
736 ...
737
738 In a previous version these devices were named
739 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
740 on.
741
742 block Fourth IDE hard disk/CD-ROM interface
743 0 = /dev/hdg Master: whole disk (or CD-ROM)
744 64 = /dev/hdh Slave: whole disk (or CD-ROM)
745
746 Partitions are handled the same way as for the first
747 interface (see major number 3).
748
749 35 char tclmidi MIDI driver
750 0 = /dev/midi0 First MIDI port, kernel timed
751 1 = /dev/midi1 Second MIDI port, kernel timed
752 2 = /dev/midi2 Third MIDI port, kernel timed
753 3 = /dev/midi3 Fourth MIDI port, kernel timed
754 64 = /dev/rmidi0 First MIDI port, untimed
755 65 = /dev/rmidi1 Second MIDI port, untimed
756 66 = /dev/rmidi2 Third MIDI port, untimed
757 67 = /dev/rmidi3 Fourth MIDI port, untimed
758 128 = /dev/smpte0 First MIDI port, SMPTE timed
759 129 = /dev/smpte1 Second MIDI port, SMPTE timed
760 130 = /dev/smpte2 Third MIDI port, SMPTE timed
761 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
762 block Slow memory ramdisk
763 0 = /dev/slram Slow memory ramdisk
764
765 36 char Netlink support
766 0 = /dev/route Routing, device updates, kernel to user
767 1 = /dev/skip enSKIP security cache control
768 3 = /dec/fwmonitor Firewall packet copies
769 16 = /dev/tap0 First Ethertap device
770 ...
771 31 = /dev/tap15 16th Ethertap device
772 block MCA ESDI hard disk
773 0 = /dev/eda First ESDI disk whole disk
774 64 = /dev/edb Second ESDI disk whole disk
775 ...
776
777 Partitions are handled in the same way as IDE disks
778 (see major number 3).
779
780 37 char IDE tape
781 0 = /dev/ht0 First IDE tape
782 1 = /dev/ht1 Second IDE tape
783 ...
784 128 = /dev/nht0 First IDE tape, no rewind-on-close
785 129 = /dev/nht1 Second IDE tape, no rewind-on-close
786 ...
787
788 Currently, only one IDE tape drive is supported.
789
790 block Zorro II ramdisk
791 0 = /dev/z2ram Zorro II ramdisk
792
793 38 char Myricom PCI Myrinet board
794 0 = /dev/mlanai0 First Myrinet board
795 1 = /dev/mlanai1 Second Myrinet board
796 ...
797
798 This device is used for status query, board control
799 and "user level packet I/O." This board is also
800 accessible as a standard networking "eth" device.
801
802 block Reserved for Linux/AP+
803
804 39 char ML-16P experimental I/O board
805 0 = /dev/ml16pa-a0 First card, first analog channel
806 1 = /dev/ml16pa-a1 First card, second analog channel
807 ...
808 15 = /dev/ml16pa-a15 First card, 16th analog channel
809 16 = /dev/ml16pa-d First card, digital lines
810 17 = /dev/ml16pa-c0 First card, first counter/timer
811 18 = /dev/ml16pa-c1 First card, second counter/timer
812 19 = /dev/ml16pa-c2 First card, third counter/timer
813 32 = /dev/ml16pb-a0 Second card, first analog channel
814 33 = /dev/ml16pb-a1 Second card, second analog channel
815 ...
816 47 = /dev/ml16pb-a15 Second card, 16th analog channel
817 48 = /dev/ml16pb-d Second card, digital lines
818 49 = /dev/ml16pb-c0 Second card, first counter/timer
819 50 = /dev/ml16pb-c1 Second card, second counter/timer
820 51 = /dev/ml16pb-c2 Second card, third counter/timer
821 ...
822 block Reserved for Linux/AP+
823
824 40 char Matrox Meteor frame grabber {2.6}
825 0 = /dev/mmetfgrab Matrox Meteor frame grabber
826 block Syquest EZ135 parallel port removable drive
827 0 = /dev/eza Parallel EZ135 drive, whole disk
828
829 This device is obsolete and will be removed in a
830 future version of Linux. It has been replaced with
831 the parallel port IDE disk driver at major number 45.
832 Partitions are handled in the same way as IDE disks
833 (see major number 3).
834
835 41 char Yet Another Micro Monitor
836 0 = /dev/yamm Yet Another Micro Monitor
837 block MicroSolutions BackPack parallel port CD-ROM
838 0 = /dev/bpcd BackPack CD-ROM
839
840 This device is obsolete and will be removed in a
841 future version of Linux. It has been replaced with
842 the parallel port ATAPI CD-ROM driver at major number 46.
843
844 42 Demo/sample use
845
846 This number is intended for use in sample code, as
847 well as a general "example" device number. It
848 should never be used for a device driver that is being
849 distributed; either obtain an official number or use
850 the local/experimental range. The sudden addition or
851 removal of a driver with this number should not cause
852 ill effects to the system (bugs excepted.)
853
854 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
855 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
856
857 43 char isdn4linux virtual modem
858 0 = /dev/ttyI0 First virtual modem
859 ...
860 63 = /dev/ttyI63 64th virtual modem
861 block Network block devices
862 0 = /dev/nb0 First network block device
863 1 = /dev/nb1 Second network block device
864 ...
865
866 Network Block Device is somehow similar to loopback
867 devices: If you read from it, it sends packet accross
868 network asking server for data. If you write to it, it
869 sends packet telling server to write. It could be used
870 to mounting filesystems over the net, swapping over
871 the net, implementing block device in userland etc.
872
873 44 char isdn4linux virtual modem - alternate devices
874 0 = /dev/cui0 Callout device for ttyI0
875 ...
876 63 = /dev/cui63 Callout device for ttyI63
877 block Flash Translatio Layer (FTL) filesystems
878 0 = /dev/ftla FTL on first Memory Technology Device
879 16 = /dev/ftlb FTL on second Memory Technology Device
880 32 = /dev/ftlc FTL on third Memory Technology Device
881 ...
882 240 = /dev/ftlp FTL on 16th Memory Technology Device
883
884 Partitions are handled in the same way as for IDE
885 disks (see major number 3) expect that the partition
886 limit is 15 rather than 63 per disk (same as SCSI.)
887
888 45 char isdn4linux ISDN BRI driver
889 0 = /dev/isdn0 First virtual B channel raw data
890 ...
891 63 = /dev/isdn63 64th virtual B channel raw data
892 64 = /dev/isdnctrl0 First channel control/debug
893 ...
894 127 = /dev/isdnctrl63 64th channel control/debug
895
896 128 = /dev/ippp0 First SyncPPP device
897 ...
898 191 = /dev/ippp63 64th SyncPPP device
899
900 255 = /dev/isdninfo ISDN monitor interface
901 block Parallel port IDE disk devices
902 0 = /dev/pda First parallel port IDE disk
903 16 = /dev/pdb Second parallel port IDE disk
904 32 = /dev/pdc Third parallel port IDE disk
905 48 = /dev/pdd Fourth parallel port IDE disk
906
907 Partitions are handled in the same way as for IDE
908 disks (see major number 3) except that the partition
909 limit is 15 rather than 63 per disk.
910
911 46 char Comtrol Rocketport serial card
912 0 = /dev/ttyR0 First Rocketport port
913 1 = /dev/ttyR1 Second Rocketport port
914 ...
915 block Parallel port ATAPI CD-ROM devices
916 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
917 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
918 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
919 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
920
921 47 char Comtrol Rocketport serial card - alternate devices
922 0 = /dev/cur0 Callout device for ttyR0
923 1 = /dev/cur1 Callout device for ttyR1
924 ...
925 block Parallel port ATAPI disk devices
926 0 = /dev/pf0 First parallel port ATAPI disk
927 1 = /dev/pf1 Second parallel port ATAPI disk
928 2 = /dev/pf2 Third parallel port ATAPI disk
929 3 = /dev/pf3 Fourth parallel port ATAPI disk
930
931 This driver is intended for floppy disks and similar
932 devices and hence does not support partitioning.
933
934 48 char SDL RISCom serial card
935 0 = /dev/ttyL0 First RISCom port
936 1 = /dev/ttyL1 Second RISCom port
937 ...
938 block Mylex DAC960 PCI RAID controller; first controller
939 0 = /dev/rd/c0d0 First disk, whole disk
940 8 = /dev/rd/c0d1 Second disk, whole disk
941 ...
942 248 = /dev/rd/c0d15 16th disk, whole disk
943
944 For partitions add:
945 0 = /dev/rd/c?d? Whole disk
946 1 = /dev/rd/c?d?p1 First partition
947 ...
948 7 = /dev/rd/c?d?p7 Seventh partition
949
950 49 char SDL RISCom serial card - alternate devices
951 0 = /dev/cul0 Callout device for ttyL0
952 1 = /dev/cul1 Callout device for ttyL1
953 ...
954 block Mylex DAC960 PCI RAID controller; second controller
955 0 = /dev/rd/c1d0 First disk, whole disk
956 8 = /dev/rd/c1d1 Second disk, whole disk
957 ...
958 248 = /dev/rd/c1d15 16th disk, whole disk
959
960 Partitions are handled as for major 48.
961
962 50 char Reserved for GLINT
963
964 block Mylex DAC960 PCI RAID controller; third controller
965 0 = /dev/rd/c2d0 First disk, whole disk
966 8 = /dev/rd/c2d1 Second disk, whole disk
967 ...
968 248 = /dev/rd/c2d15 16th disk, whole disk
969
970 51 char Baycom radio modem
971 0 = /dev/bc0 First Baycom radio modem
972 1 = /dev/bc1 Second Baycom radio modem
973 ...
974 block Mylex DAC960 PCI RAID controller; fourth controller
975 0 = /dev/rd/c3d0 First disk, whole disk
976 8 = /dev/rd/c3d1 Second disk, whole disk
977 ...
978 248 = /dev/rd/c3d15 16th disk, whole disk
979
980 Partitions are handled as for major 48.
981
982 52 char Spellcaster DataComm/BRI ISDN card
983 0 = /dev/dcbri0 First DataComm card
984 1 = /dev/dcbri1 Second DataComm card
985 2 = /dev/dcbri2 Third DataComm card
986 3 = /dev/dcbri3 Fourth DataComm card
987 block Mylex DAC960 PCI RAID controller; fifth controller
988 0 = /dev/rd/c4d0 First disk, whole disk
989 8 = /dev/rd/c4d1 Second disk, whole disk
990 ...
991 248 = /dev/rd/c4d15 16th disk, whole disk
992
993 Partitions are handled as for major 48.
994
995 53 char BDM interface for remote debugging MC683xx microcontrollers
996 0 = /dev/pd_bdm0 PD BDM interface on lp0
997 1 = /dev/pd_bdm1 PD BDM interface on lp1
998 2 = /dev/pd_bdm2 PD BDM interface on lp2
999 4 = /dev/icd_bdm0 ICD BDM interface on lp0
1000 5 = /dev/icd_bdm1 ICD BDM interface on lp1
1001 6 = /dev/icd_bdm2 ICD BDM interface on lp2
1002
1003 This device is used for the interfacing to the MC683xx
1004 microcontrollers via Background Debug Mode by use of a
1005 Parallel Port interface. PD is the Motorola Public
1006 Domain Interface and ICD is the commercial interface
1007 by P&E.
1008
1009 block Mylex DAC960 PCI RAID controller; sixth controller
1010 0 = /dev/rd/c5d0 First disk, whole disk
1011 8 = /dev/rd/c5d1 Second disk, whole disk
1012 ...
1013 248 = /dev/rd/c5d15 16th disk, whole disk
1014
1015 Partitions are handled as for major 48.
1016
1017 54 char Electrocardiognosis Holter serial card
1018 0 = /dev/holter0 First Holter port
1019 1 = /dev/holter1 Second Holter port
1020 2 = /dev/holter2 Third Holter port
1021
1022 A custom serial card used by Electrocardiognosis SRL
1023 <mseritan@ottonel.pub.ro> to transfer data from Holter
1024 24-hour heart monitoring equipment.
1025
1026 block Mylex DAC960 PCI RAID controller; seventh controller
1027 0 = /dev/rd/c6d0 First disk, whole disk
1028 8 = /dev/rd/c6d1 Second disk, whole disk
1029 ...
1030 248 = /dev/rd/c6d15 16th disk, whole disk
1031
1032 Partitions are handled as for major 48.
1033
1034 55 char DSP56001 digital signal processor
1035 0 = /dev/dsp56k First DSP56001
1036 block Mylex DAC960 PCI RAID controller; eigth controller
1037 0 = /dev/rd/c7d0 First disk, whole disk
1038 8 = /dev/rd/c7d1 Second disk, whole disk
1039 ...
1040 248 = /dev/rd/c7d15 16th disk, whole disk
1041
1042 Partitions are handled as for major 48.
1043
1044 56 char Apple Desktop Bus
1045 0 = /dev/adb ADB bus control
1046
1047 Additional devices will be added to this number, all
1048 starting with /dev/adb.
1049
1050 block Fifth IDE hard disk/CD-ROM interface
1051 0 = /dev/hdi Master: whole disk (or CD-ROM)
1052 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1053
1054 Partitions are handled the same way as for the first
1055 interface (see major number 3).
1056
1057 57 char Hayes ESP serial card
1058 0 = /dev/ttyP0 First ESP port
1059 1 = /dev/ttyP1 Second ESP port
1060 ...
1061
1062 block Sixth IDE hard disk/CD-ROM interface
1063 0 = /dev/hdk Master: whole disk (or CD-ROM)
1064 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1065
1066 Partitions are handled the same way as for the first
1067 interface (see major number 3).
1068
1069 58 char Hayes ESP serial card - alternate devices
1070 0 = /dev/cup0 Callout device for ttyP0
1071 1 = /dev/cup1 Callout device for ttyP1
1072 ...
1073 block Reserved for logical volume manager
1074
1075 59 char sf firewall package
1076 0 = /dev/firewall Communication with sf kernel module
1077
1078 block Generic PDA filesystem device
1079 0 = /dev/pda0 First PDA device
1080 1 = /dev/pda1 Second PDA device
1081 ...
1082
1083 The pda devices are used to mount filesystems on
1084 remote pda's (basically slow handheld machines with
1085 proprietary OS's and limited memory and storage
1086 running small fs translation drivers) through serial /
1087 IRDA / parallel links.
1088
1089 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1090
1091 60-63 LOCAL/EXPERIMENTAL USE
1092 Allocated for local/experimental use. For devices not
1093 assigned official numbers, these ranges should be
1094 used, in order to avoid conflicting with future assignments.
1095
1096 64 char ENskip kernel encryption package
1097 0 = /dev/enskip Communication with ENskip kernel module
1098
1099 65 char Sundance "plink" Transputer boards
1100 0 = /dev/plink0 First plink device
1101 1 = /dev/plink1 Second plink device
1102 2 = /dev/plink2 Third plink device
1103 3 = /dev/plink3 Fourth plink device
1104 64 = /dev/rplink0 First plink device, raw
1105 65 = /dev/rplink1 Second plink device, raw
1106 66 = /dev/rplink2 Third plink device, raw
1107 67 = /dev/rplink3 Fourth plink device, raw
1108 128 = /dev/plink0d First plink device, debug
1109 129 = /dev/plink1d Second plink device, debug
1110 130 = /dev/plink2d Third plink device, debug
1111 131 = /dev/plink3d Fourth plink device, debug
1112 192 = /dev/rplink0d First plink device, raw, debug
1113 193 = /dev/rplink1d Second plink device, raw, debug
1114 194 = /dev/rplink2d Third plink device, raw, debug
1115 195 = /dev/rplink3d Fourth plink device, raw, debug
1116
1117 This is a commercial driver; contact James Howes
1118 <jth@prosig.demon.co.uk> for information.
1119
1120 block SCSI disk devices (16-31)
1121 0 = /dev/sdq 16th SCSI disk whole disk
1122 16 = /dev/sdr 17th SCSI disk whole disk
1123 32 = /dev/sds 18th SCSI disk whole disk
1124 ...
1125 240 = /dev/sdaf 32nd SCSI disk whole disk
1126
1127 Partitions are handled in the same way as for IDE
1128 disks (see major number 3) except that the limit on
1129 partitions is 15.
1130
1131 66 char YARC PowerPC PCI coprocessor card
1132 0 = /dev/yppcpci0 First YARC card
1133 1 = /dev/yppcpci1 Second YARC card
1134 ...
1135
1136 block SCSI disk devices (32-47)
1137 0 = /dev/sdag 33th SCSI disk whole disk
1138 16 = /dev/sdah 34th SCSI disk whole disk
1139 32 = /dev/sdai 35th SCSI disk whole disk
1140 ...
1141 240 = /dev/sdav 48nd SCSI disk whole disk
1142
1143 Partitions are handled in the same way as for IDE
1144 disks (see major number 3) except that the limit on
1145 partitions is 15.
1146
1147 67 char Coda network file system
1148 0 = /dev/cfs0 Coda cache manager
1149
1150 See http://www.coda.cs.cmu.edu for information about Coda.
1151
1152 block SCSI disk devices (48-63)
1153 0 = /dev/sdaw 49th SCSI disk whole disk
1154 16 = /dev/sdax 50th SCSI disk whole disk
1155 32 = /dev/sday 51st SCSI disk whole disk
1156 ...
1157 240 = /dev/sdbl 64th SCSI disk whole disk
1158
1159 Partitions are handled in the same way as for IDE
1160 disks (see major number 3) except that the limit on
1161 partitions is 15.
1162
1163 68 char CAPI 2.0 interface
1164 0 = /dev/capi20 Control device
1165 1 = /dev/capi20.00 First CAPI 2.0 application
1166 2 = /dev/capi20.01 Second CAPI 2.0 application
1167 ...
1168 20 = /dev/capi20.19 19th CAPI 2.0 application
1169
1170 ISDN CAPI 2.0 driver for use with CAPI 2.0
1171 applications; currently supports the AVM B1 card.
1172
1173 block SCSI disk devices (64-79)
1174 0 = /dev/sdbm 64th SCSI disk whole disk
1175 16 = /dev/sdbn 65th SCSI disk whole disk
1176 32 = /dev/sdbo 66th SCSI disk whole disk
1177 ...
1178 240 = /dev/sdcb 80th SCSI disk whole disk
1179
1180 Partitions are handled in the same way as for IDE
1181 disks (see major number 3) except that the limit on
1182 partitions is 15.
1183
1184 69 char MA16 numeric accelerator card
1185 0 = /dev/ma16 Board memory access
1186
1187 block SCSI disk devices (80-95)
1188 0 = /dev/sdcc 81st SCSI disk whole disk
1189 16 = /dev/sdcd 82nd SCSI disk whole disk
1190 32 = /dev/sdce 83th SCSI disk whole disk
1191 ...
1192 240 = /dev/sdcr 96th SCSI disk whole disk
1193
1194 Partitions are handled in the same way as for IDE
1195 disks (see major number 3) except that the limit on
1196 partitions is 15.
1197
1198 70 char SpellCaster Protocol Services Interface
1199 0 = /dev/apscfg Configuration interface
1200 1 = /dev/apsauth Authentication interface
1201 2 = /dev/apslog Logging interface
1202 3 = /dev/apsdbg Debugging interface
1203 64 = /dev/apsisdn ISDN command interface
1204 65 = /dev/apsasync Async command interface
1205 128 = /dev/apsmon Monitor interface
1206
1207 block SCSI disk devices (96-111)
1208 0 = /dev/sdcs 97th SCSI disk whole disk
1209 16 = /dev/sdct 98th SCSI disk whole disk
1210 32 = /dev/sdcu 99th SCSI disk whole disk
1211 ...
1212 240 = /dev/sddh 112nd SCSI disk whole disk
1213
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.
1217
1218 71 char Computone IntelliPort II serial card
1219 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1220 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1221 ...
1222 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1223 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1224 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1225 ...
1226 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1227 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1228 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1229 ...
1230 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1231 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1232 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1233 ...
1234 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1235
1236 block SCSI disk devices (112-127)
1237 0 = /dev/sddi 113th SCSI disk whole disk
1238 16 = /dev/sddj 114th SCSI disk whole disk
1239 32 = /dev/sddk 115th SCSI disk whole disk
1240 ...
1241 240 = /dev/sddx 128th SCSI disk whole disk
1242
1243 Partitions are handled in the same way as for IDE
1244 disks (see major number 3) except that the limit on
1245 partitions is 15.
1246
1247 72 char Computone IntelliPort II serial card - alternate devices
1248 0 = /dev/cuf0 Callout device for ttyF0
1249 1 = /dev/cuf1 Callout device for ttyF1
1250 ...
1251 63 = /dev/cuf63 Callout device for ttyF63
1252 64 = /dev/cuf64 Callout device for ttyF64
1253 65 = /dev/cuf65 Callout device for ttyF65
1254 ...
1255 127 = /dev/cuf127 Callout device for ttyF127
1256 128 = /dev/cuf128 Callout device for ttyF128
1257 129 = /dev/cuf129 Callout device for ttyF129
1258 ...
1259 191 = /dev/cuf191 Callout device for ttyF191
1260 192 = /dev/cuf192 Callout device for ttyF192
1261 193 = /dev/cuf193 Callout device for ttyF193
1262 ...
1263 255 = /dev/cuf255 Callout device for ttyF255
1264
1265 block Compaq Intelligent Drive Array, first controller
1266 0 = /dev/ida/c0d0 First logical drive whole disk
1267 16 = /dev/ida/c0d1 Second logical drive whole disk
1268 ...
1269 240 = /dev/ida/c0d15 16th logical drive whole disk
1270
1271 Partitions are handled the same way as for Mylex
1272 DAC960 (see major number 48) except that the limit on
1273 partitions is 15.
1274
1275 73 char Computone IntelliPort II serial card - control devices
1276 0 = /dev/ip2ipl0 Loadware device for board 0
1277 1 = /dev/ip2stat0 Status device for board 0
1278 4 = /dev/ip2ipl1 Loadware device for board 1
1279 5 = /dev/ip2stat1 Status device for board 1
1280 8 = /dev/ip2ipl2 Loadware device for board 2
1281 9 = /dev/ip2stat2 Status device for board 2
1282 12 = /dev/ip2ipl3 Loadware device for board 3
1283 13 = /dev/ip2stat3 Status device for board 3
1284
1285 block Compaq Intelligent Drive Array, second controller
1286 0 = /dev/ida/c1d0 First logical drive whole disk
1287 16 = /dev/ida/c1d1 Second logical drive whole disk
1288 ...
1289 240 = /dev/ida/c1d15 16th logical drive whole disk
1290
1291 Partitions are handled the same way as for Mylex
1292 DAC960 (see major number 48) except that the limit on
1293 partitions is 15.
1294
1295 74 char SCI bridge
1296 0 = /dev/SCI/0 SCI device 0
1297 1 = /dev/SCI/1 SCI device 1
1298 ...
1299
1300 Currently for Dolphin Interconnect Solutions' PCI-SCI
1301 bridge.
1302
1303 block Compaq Intelligent Drive Array, third controller
1304 0 = /dev/ida/c2d0 First logical drive whole disk
1305 16 = /dev/ida/c2d1 Second logical drive whole disk
1306 ...
1307 240 = /dev/ida/c2d15 16th logical drive whole disk
1308
1309 Partitions are handled the same way as for Mylex
1310 DAC960 (see major number 48) except that the limit on
1311 partitions is 15.
1312
1313 75 char Specialix IO8+ serial card
1314 0 = /dev/ttyW0 First IO8+ port, first card
1315 1 = /dev/ttyW1 Second IO8+ port, first card
1316 ...
1317 8 = /dev/ttyW8 First IO8+ port, second card
1318 ...
1319
1320 block Compaq Intelligent Drive Array, fourth controller
1321 0 = /dev/ida/c3d0 First logical drive whole disk
1322 16 = /dev/ida/c3d1 Second logical drive whole disk
1323 ...
1324 240 = /dev/ida/c3d15 16th logical drive whole disk
1325
1326 Partitions are handled the same way as for Mylex
1327 DAC960 (see major number 48) except that the limit on
1328 partitions is 15.
1329
1330 76 char Specialix IO8+ serial card - alternate devices
1331 0 = /dev/cuw0 Callout device for ttyW0
1332 1 = /dev/cuw1 Callout device for ttyW1
1333 ...
1334 8 = /dev/cuw8 Callout device for ttyW8
1335 ...
1336
1337 block Compaq Intelligent Drive Array, fifth controller
1338 0 = /dev/ida/c4d0 First logical drive whole disk
1339 16 = /dev/ida/c4d1 Second logical drive whole disk
1340 ...
1341 240 = /dev/ida/c4d15 16th logical drive whole disk
1342
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.
1346
1347
1348 77 char ComScire Quantum Noise Generator
1349 0 = /dev/qng ComScire Quantum Noise Generator
1350
1351 block Compaq Intelligent Drive Array, sixth controller
1352 0 = /dev/ida/c5d0 First logical drive whole disk
1353 16 = /dev/ida/c5d1 Second logical drive whole disk
1354 ...
1355 240 = /dev/ida/c5d15 16th logical drive whole disk
1356
1357 Partitions are handled the same way as for Mylex
1358 DAC960 (see major number 48) except that the limit on
1359 partitions is 15.
1360
1361
1362 78 char PAM Software's multimodem boards
1363 0 = /dev/ttyM0 First PAM modem
1364 1 = /dev/ttyM1 Second PAM modem
1365 ...
1366
1367 block Compaq Intelligent Drive Array, seventh controller
1368 0 = /dev/ida/c6d0 First logical drive whole disk
1369 16 = /dev/ida/c6d1 Second logical drive whole disk
1370 ...
1371 240 = /dev/ida/c6d15 16th logical drive whole disk
1372
1373 Partitions are handled the same way as for Mylex
1374 DAC960 (see major number 48) except that the limit on
1375 partitions is 15.
1376
1377
1378 79 char PAM Software's multimodem boards - alternate devices
1379 0 = /dev/cum0 Callout device for ttyM0
1380 1 = /dev/cum1 Callout device for ttyM1
1381 ...
1382
1383 block Compaq Intelligent Drive Array, eigth controller
1384 0 = /dev/ida/c7d0 First logical drive whole disk
1385 16 = /dev/ida/c7d1 Second logical drive whole disk
1386 ...
1387 240 = /dev/ida/c715 16th logical drive whole disk
1388
1389 Partitions are handled the same way as for Mylex
1390 DAC960 (see major number 48) except that the limit on
1391 partitions is 15.
1392
1393
1394 80 char Photometrics AT200 CCD camera
1395 0 = /dev/at200 Photometrics AT200 CCD camera
1396
1397 block I2O hard disk
1398 0 = /dev/i2o/hda First I2O hard disk, whole disk
1399 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1400 ...
1401 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1402
1403 Partitions are handled in the same way as for IDE
1404 disks (see major number 3) except that the limit on
1405 partitions is 15.
1406
1407 81 char video4linux
1408 0 = /dev/video0 Video capture/overlay device
1409 ...
1410 63 = /dev/video63 Video capture/overlay device
1411 64 = /dev/radio0 Radio device
1412 ...
1413 127 = /dev/radio63 Radio device
1414 192 = /dev/vtx0 Teletext device
1415 ...
1416 223 = /dev/vtx31 Teletext device
1417 224 = /dev/vbi0 Vertical blank interrupt
1418 ...
1419 255 = /dev/vbi31 Vertical blank interrupt
1420
1421 block I2O hard disk
1422 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1423 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1424 ...
1425 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1426
1427 Partitions are handled in the same way as for IDE
1428 disks (see major number 3) except that the limit on
1429 partitions is 15.
1430
1431 82 char WiNRADiO communications receiver card
1432 0 = /dev/winradio0 First WiNRADiO card
1433 1 = /dev/winradio1 Second WiNRADiO card
1434 ...
1435
1436 The driver and documentation may be obtained from
1437 http://www.proximity.com.au/~brian/winradio/
1438
1439 block I2O hard disk
1440 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1441 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1442 ...
1443 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1444
1445 Partitions are handled in the same way as for IDE
1446 disks (see major number 3) except that the limit on
1447 partitions is 15.
1448
1449 83 char Teletext/videotext interfaces {2.6}
1450 0 = /dev/vtx Teletext decoder
1451 16 = /dev/vttuner TV tuner on teletext interface
1452
1453 Devices for the driver contained in the VideoteXt package.
1454 More information on http://home.pages.de/~videotext/
1455
1456 block I2O hard disk
1457 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1458 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1459 ...
1460 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk
1461
1462 Partitions are handled in the same way as for IDE
1463 disks (see major number 3) except that the limit on
1464 partitions is 15.
1465
1466 84 char Ikon 1011[57] Versatec Greensheet Interface
1467 0 = /dev/ihcp0 First Greensheet port
1468 1 = /dev/ihcp1 Second Greensheet port
1469
1470 block I2O hard disk
1471 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1472 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1473 ...
1474 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1475
1476 Partitions are handled in the same way as for IDE
1477 disks (see major number 3) except that the limit on
1478 partitions is 15.
1479
1480 85 char Linux/SGI shared memory input queue
1481 0 = /dev/shmiq Master shared input queue
1482 1 = /dev/qcntl0 First device pushed
1483 2 = /dev/qcntl1 Second device pushed
1484 ...
1485
1486 block I2O hard disk
1487 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1488 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1489 ...
1490 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk
1491
1492 Partitions are handled in the same way as for IDE
1493 disks (see major number 3) except that the limit on
1494 partitions is 15.
1495
1496 86 char SCSI media changer
1497 0 = /dev/sch0 First SCSI media changer
1498 1 = /dev/sch1 Second SCSI media changer
1499 ...
1500
1501 block I2O hard disk
1502 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1503 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1504 ...
1505 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1506
1507 Partitions are handled in the same way as for IDE
1508 disks (see major number 3) except that the limit on
1509 partitions is 15.
1510
1511 87 char Sony Control-A1 stereo control bus
1512 0 = /dev/controla0 First device on chain
1513 1 = /dev/controla1 Second device on chain
1514 ...
1515
1516 block I2O hard disk
1517 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1518 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1519 ...
1520 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1521
1522 Partitions are handled in the same way as for IDE
1523 disks (see major number 3) except that the limit on
1524 partitions is 15.
1525
1526 88 char COMX synchronous serial card
1527 0 = /dev/comx0 COMX channel 0
1528 1 = /dev/comx1 COMX channel 1
1529 ...
1530
1531 block Seventh IDE hard disk/CD-ROM interface
1532 0 = /dev/hdm Master: whole disk (or CD-ROM)
1533 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1534
1535 Partitions are handled the same way as for the first
1536 interface (see major number 3).
1537
1538
1539 89 char I2C bus interface
1540 0 = /dev/i2c-0 First I2C adapter
1541 1 = /dev/i2c-1 Second I2C adapter
1542 ...
1543
1544 block Eighth IDE hard disk/CD-ROM interface
1545 0 = /dev/hdo Master: whole disk (or CD-ROM)
1546 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1547
1548 Partitions are handled the same way as for the first
1549 interface (see major number 3).
1550
1551 90 char Memory Technology Device (RAM, ROM, Flash)
1552 0 = /dev/mtd0 First MTD (rw)
1553 1 = /dev/mtdr0 First MTD (ro)
1554 ...
1555 30 = /dev/mtd15 16th MTD (rw)
1556 31 = /dev/mtdr15 16th MTD (ro)
1557
1558 block Ninth IDE hard disk/CD-ROM interface
1559 0 = /dev/hdq Master: whole disk (or CD-ROM)
1560 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1561
1562 Partitions are handled the same way as for the first
1563 interface (see major number 3).
1564
1565 91 char CAN-Bus devices
1566 0 = /dev/can0 First CAN-Bus controller
1567 1 = /dev/can1 Second CAN-Bus controller
1568 ...
1569
1570 block Tenth IDE hard disk/CD-ROM interface
1571 0 = /dev/hds Master: whole disk (or CD-ROM)
1572 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1573
1574 Partitions are handled the same way as for the first
1575 interface (see major number 3).
1576
1577 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1578
1579 block PPDD encrypted disk driver
1580 0 = /dev/ppdd0 First encrypted disk
1581 1 = /dev/ppdd1 Second encrypted disk
1582 ...
1583
1584 Partitions are handled in the same way as for IDE
1585 disks (see major number 3) except that the limit on
1586 partitions is 15.
1587
1588 93 char IBM Smart Capture Card frame grabber {2.6}
1589 0 = /dev/iscc0 First Smart Capture Card
1590 1 = /dev/iscc1 Second Smart Capture Card
1591 ...
1592 128 = /dev/isccctl0 First Smart Capture Card control
1593 129 = /dev/isccctl1 Second Smart Capture Card control
1594 ...
1595
1596 block NAND Flash Translation Layer filesystem
1597 0 = /dev/nftla First NFTL layer
1598 16 = /dev/nftlb Second NFTL layer
1599 ...
1600 240 = /dev/nftlp 16th NTFL layer
1601
1602 94 char miroVIDEO DC10/30 capture/playback device {2.6}
1603 0 = /dev/dcxx0 First capture card
1604 1 = /dev/dcxx1 Second capture card
1605 ...
1606
1607 95 char IP filter
1608 0 = /dev/ipl Filter control device/log file
1609 1 = /dev/ipnat NAT control device/log file
1610 2 = /dev/ipstate State information log file
1611 3 = /dev/ipauth Authentication control device/log file
1612
1613 block IBM S/390 DASD block storage
1614 0 = /dev/dasd0 First DASD device, major
1615 1 = /dev/dasd0a First DASD device, block 1
1616 2 = /dev/dasd0b First DASD device, block 2
1617 3 = /dev/dasd0c First DASD device, block 3
1618 4 = /dev/dasd1 Second DASD device, major
1619 5 = /dev/dasd1a Second DASD device, block 1
1620 6 = /dev/dasd1b Second DASD device, block 2
1621 7 = /dev/dasd1c Second DASD device, block 3
1622 ...
1623
1624 96 char Parallel port ATAPI tape devices
1625 0 = /dev/pt0 First parallel port ATAPI tape
1626 1 = /dev/pt1 Second parallel port ATAPI tape
1627 ...
1628 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1629 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1630 ...
1631
1632 block IBM S/390 VM/ESA minidisk
1633 0 = /dev/msd0 First VM/ESA minidisk
1634 1 = /dev/msd1 Second VM/ESA minidisk
1635 ...
1636
1637 97 char Parallel port generic ATAPI interface
1638 0 = /dev/pg0 First parallel port ATAPI device
1639 1 = /dev/pg1 Second parallel port ATAPI device
1640 2 = /dev/pg2 Third parallel port ATAPI device
1641 3 = /dev/pg3 Fourth parallel port ATAPI device
1642
1643 These devices support the same API as the generic SCSI
1644 devices.
1645
1646 block Packet writing for CD/DVD devices
1647 0 = /dev/pktcdvd0 First packet-writing module
1648 1 = /dev/pktcdvd1 Second packet-writing module
1649 ...
1650
1651 98 char Control and Measurement Device (comedi)
1652 0 = /dev/comedi0 First comedi device
1653 1 = /dev/comedi1 Second comedi device
1654 ...
1655
1656 See http://stm.lbl.gov/comedi or http://www.llp.fu-berlin.de/.
1657
1658 block User-mode virtual block device
1659 0 = /dev/ubd0 First user-mode block device
1660 1 = /dev/ubd1 Second user-mode block device
1661 ...
1662
1663 This device is used by the user-mode virtual kernel port.
1664
1665 99 char Raw parallel ports
1666 0 = /dev/parport0 First parallel port
1667 1 = /dev/parport1 Second parallel port
1668 ...
1669
1670 block JavaStation flash disk
1671 0 = /dev/jsfd JavaStation flash disk
1672
1673 100 char Telephony for Linux
1674 0 = /dev/phone0 First telephony device
1675 1 = /dev/phone1 Second telephony device
1676 ...
1677
1678 101 char Motorola DSP 56xxx board
1679 0 = /dev/mdspstat Status information
1680 1 = /dev/mdsp1 First DSP board I/O controls
1681 ...
1682 16 = /dev/mdsp16 16th DSP board I/O controls
1683
1684 block AMI HyperDisk RAID controller
1685 0 = /dev/amiraid/ar0 First array whole disk
1686 16 = /dev/amiraid/ar1 Second array whole disk
1687 ...
1688 240 = /dev/amiraid/ar15 16th array whole disk
1689
1690 For each device, partitions are added as:
1691 0 = /dev/amiraid/ar? Whole disk
1692 1 = /dev/amiraid/ar?p1 First partition
1693 2 = /dev/amiraid/ar?p2 Second partition
1694 ...
1695 15 = /dev/amiraid/ar?p15 15th partition
1696
1697 102 char Philips SAA5249 Teletext signal decoder {2.6}
1698 0 = /dev/tlk0 First Teletext decoder
1699 1 = /dev/tlk1 Second Teletext decoder
1700 2 = /dev/tlk2 Third Teletext decoder
1701 3 = /dev/tlk3 Fourth Teletext decoder
1702
1703 103 char Arla network file system
1704 0 = /dev/xfs0 Arla XFS
1705
1706 Arla is a free clone of the Andrew File System, AFS.
1707 Any resemblance with the Swedish milk producer is
1708 coincidental. For more information about the project,
1709 write to <arla-drinkers@stacken.kth.se> or subscribe
1710 to the arla announce mailing list by sending a mail to
1711 <arla-announce-request@stacken.kth.se>.
1712
1713 block Audit device
1714 0 = /dev/audit Audit device
1715
1716 104 char Flash BIOS support
1717
1718 block Compaq Next Generation Drive Array, first controller
1719 0 = /dev/cciss/c0d0 First logical drive, whole disk
1720 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1721 ...
1722 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1723
1724 Partitions are handled the same way as for Mylex
1725 DAC960 (see major number 48) except that the limit on
1726 partitions is 15.
1727
1728 105 char Comtrol VS-1000 serial controller
1729 0 = /dev/ttyV0 First VS-1000 port
1730 1 = /dev/ttyV1 Second VS-1000 port
1731 ...
1732
1733 block Compaq Next Generation Drive Array, second controller
1734 0 = /dev/cciss/c1d0 First logical drive, whole disk
1735 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1736 ...
1737 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1738
1739 Partitions are handled the same way as for Mylex
1740 DAC960 (see major number 48) except that the limit on
1741 partitions is 15.
1742
1743 106 char Comtrol VS-1000 serial controller - alternate devices
1744 0 = /dev/cuv0 First VS-1000 port
1745 1 = /dev/cuv1 Second VS-1000 port
1746 ...
1747
1748 block Compaq Next Generation Drive Array, third controller
1749 0 = /dev/cciss/c2d0 First logical drive, whole disk
1750 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1751 ...
1752 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1753
1754 Partitions are handled the same way as for Mylex
1755 DAC960 (see major number 48) except that the limit on
1756 partitions is 15.
1757
1758 107 char 3Dfx Voodoo Graphics device
1759 0 = /dev/3dfx Primary 3Dfx graphics device
1760
1761 block Compaq Next Generation Drive Array, fourth controller
1762 0 = /dev/cciss/c3d0 First logical drive, whole disk
1763 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1764 ...
1765 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1766
1767 Partitions are handled the same way as for Mylex
1768 DAC960 (see major number 48) except that the limit on
1769 partitions is 15.
1770
1771 108 char Device independent PPP interface
1772 0 = /dev/ppp Device independent PPP interface
1773
1774 block Compaq Next Generation Drive Array, fifth controller
1775 0 = /dev/cciss/c4d0 First logical drive, whole disk
1776 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1777 ...
1778 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1779
1780 Partitions are handled the same way as for Mylex
1781 DAC960 (see major number 48) except that the limit on
1782 partitions is 15.
1783
1784 109 char Reserved for logical volume manager
1785
1786 block Compaq Next Generation Drive Array, sixth controller
1787 0 = /dev/cciss/c5d0 First logical drive, whole disk
1788 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1789 ...
1790 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1791
1792 Partitions are handled the same way as for Mylex
1793 DAC960 (see major number 48) except that the limit on
1794 partitions is 15.
1795
1796 110 char miroMEDIA Surround board
1797 0 = /dev/srnd0 First miroMEDIA Surround board
1798 1 = /dev/srnd1 Second miroMEDIA Surround board
1799 ...
1800
1801 block Compaq Next Generation Drive Array, seventh controller
1802 0 = /dev/cciss/c6d0 First logical drive, whole disk
1803 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1804 ...
1805 240 = /dev/cciss/c6d15 16th logical drive, whole disk
1806
1807 Partitions are handled the same way as for Mylex
1808 DAC960 (see major number 48) except that the limit on
1809 partitions is 15.
1810
1811 111 char Philips SAA7146-based audio/video card {2.6}
1812 0 = /dev/av0 First A/V card
1813 1 = /dev/av1 Second A/V card
1814 ...
1815
1816 block Compaq Next Generation Drive Array, eigth controller
1817 0 = /dev/cciss/c7d0 First logical drive, whole disk
1818 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1819 ...
1820 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1821
1822 Partitions are handled the same way as for Mylex
1823 DAC960 (see major number 48) except that the limit on
1824 partitions is 15.
1825
1826 112 char ISI serial card
1827 0 = /dev/ttyM0 First ISI port
1828 1 = /dev/ttyM1 Second ISI port
1829 ...
1830
1831 There is currently a device-naming conflict between
1832 these and PAM multimodems (major 78).
1833
1834 113 char ISI serial card - alternate devices
1835 0 = /dev/cum0 Callout device for ttyM0
1836 1 = /dev/cum1 Callout device for ttyM1
1837 ...
1838
1839 114 char Picture Elements ISE board
1840 0 = /dev/ise0 First ISE board
1841 1 = /dev/ise1 Second ISE board
1842 ...
1843 128 = /dev/isex0 Control node for first ISE board
1844 129 = /dev/isex1 Control node for second ISE board
1845 ...
1846
1847 The ISE board is an embedded computer, optimized for
1848 image processing. The /dev/iseN nodes are the general
1849 I/O access to the board, the /dev/isex0 nodes command
1850 nodes used to control the board.
1851
1852 115 char Console driver speaker
1853 0 = /dev/speaker Speaker device file
1854
1855 Plays music using IBM BASIC style strings.
1856
1857 116 char Advanced Linux Sound Driver (ALSA)
1858
1859 117 char COSA/SRP synchronous serial card
1860 0 = /dev/cosa0c0 1st board, 1st channel
1861 1 = /dev/cosa0c1 1st board, 2nd channel
1862 ...
1863 16 = /dev/cosa1c0 2nd board, 1st channel
1864 17 = /dev/cosa1c1 2nd board, 2nd channel
1865 ...
1866
1867 118 char Solidum ???
1868 0 = /dev/solnp0
1869 1 = /dev/solnp1
1870 ...
1871 128 = /dev/solnpctl0
1872 129 = /dev/solnpctl1
1873 ...
1874
1875 119 char VMware virtual network control
1876 0 = /dev/vnet0 1st virtual network
1877 1 = /dev/vnet1 2nd virtual network
1878 ...
1879
1880 120-127 LOCAL/EXPERIMENTAL USE
1881
1882 128-135 char Unix98 PTY masters
1883
1884 These devices should not have corresponding device
1885 nodes; instead they should be accessed through the
1886 /dev/ptmx cloning interface.
1887
1888 136-143 char Unix98 PTY slaves
1889 0 = /dev/pts/0 First Unix98 pseudo-TTY
1890 1 = /dev/pts/1 Second Unix98 pesudo-TTY
1891 ...
1892
1893 These device nodes are automatically generated with
1894 the proper permissions and modes by mounting the
1895 devpts filesystem onto /dev/pts with the appropriate
1896 mount options (distribution dependent, however, on
1897 *most* distributions the appropriate options are
1898 "mode=0620,gid=<gid of the "tty" group>".)
1899
1900 144 char Encapsulated PPP
1901 0 = /dev/pppox0 First PPP over Ethernet
1902 ...
1903 63 = /dev/pppox63 64th PPP over Ethernet
1904
1905 This is primarily used for ADSL.
1906
1907 The SST 5136-DN DeviceNet interface driver has been
1908 relocated to major 183 due to an unfortunate conflict.
1909
1910 145 char SAM9407-based soundcard
1911 0 = /dev/sam0_mixer
1912 1 = /dev/sam0_sequencer
1913 2 = /dev/sam0_midi00
1914 3 = /dev/sam0_dsp
1915 4 = /dev/sam0_audio
1916 6 = /dev/sam0_sndstat
1917 18 = /dev/sam0_midi01
1918 34 = /dev/sam0_midi02
1919 50 = /dev/sam0_midi03
1920 64 = /dev/sam1_mixer
1921 ...
1922 128 = /dev/sam2_mixer
1923 ...
1924 192 = /dev/sam3_mixer
1925 ...
1926
1927 Device functions match OSS, but offer a number of
1928 addons, which are sam9407 specific. OSS can be
1929 operated simultaneously, taking care of the codec.
1930
1931 146 char SYSTRAM SCRAMNet mirrored-memory network
1932 0 = /dev/scramnet0 First SCRAMNet device
1933 1 = /dev/scramnet1 Second SCRAMNet device
1934 ...
1935
1936 147 char Aueral Semiconductor Vortex Audio device
1937 0 = /dev/aureal0 First Aureal Vortex
1938 1 = /dev/aureal1 Second Aureal Vortex
1939 ...
1940
1941 148 char Technology Concepts serial card
1942 0 = /dev/ttyT0 First TCL port
1943 1 = /dev/ttyT1 Second TCL port
1944 ...
1945
1946 149 char Technology Concepts serial card - alternate devices
1947 0 = /dev/cut0 Callout device for ttyT0
1948 1 = /dev/cut0 Callout device for ttyT1
1949 ...
1950
1951 150 char Real-Time Linux FIFOs
1952 0 = /dev/rtf0 First RTLinux FIFO
1953 1 = /dev/rtf1 Second RTLinux FIFO
1954 ...
1955
1956 151 char DPT I2O SmartRaid V controller
1957 0 = /dev/dpti0 First DPT I2O adapter
1958 1 = /dev/dpti1 Second DPT I2O adapter
1959 ...
1960
1961 154 char Specialix RIO serial card
1962 0 = /dev/ttySR0 First RIO port
1963 ...
1964 255 = /dev/ttySR255 256th RIO port
1965
1966 155 char Specialix RIO serial card - alternate devices
1967 0 = /dev/cusr0 Callout device for ttySR0
1968 ...
1969 255 = /dev/cusr255 Callout device for ttySR255
1970
1971 156 char Specialix RIO serial card
1972 0 = /dev/ttySR256 257th RIO port
1973 ...
1974 255 = /dev/ttySR511 512th RIO port
1975
1976 157 char Specialix RIO serial card - alternate devices
1977 0 = /dev/cusr256 Callout device for ttySR256
1978 ...
1979 255 = /dev/cusr511 Callout device for ttySR511
1980
1981 158 char Dialogic GammaLink fax driver
1982 0 = /dev/gfax0 GammaLink channel 0
1983 1 = /dev/gfax1 GammaLink channel 1
1984 ...
1985
1986 159 RESERVED
1987
1988 160 char General Purpose Instrument Bus (GPIB)
1989 0 = /dev/gpib0 First GPIB bus
1990 1 = /dev/gpib1 Second GPIB bus
1991 ...
1992
1993 161 char IrCOMM devices (IrDA serial/parallel emulation)
1994 0 = /dev/ircomm0 First IrCOMM device
1995 1 = /dev/ircomm1 Second IrCOMM device
1996 ...
1997 16 = /dev/irlpt0 First IrLPT device
1998 17 = /dev/irlpt1 Second IrLPT device
1999 ...
2000
2001 162 char Raw block device interface
2002 0 = /dev/raw Raw I/O control device
2003 1 = /dev/raw1 First raw I/O device
2004 2 = /dev/raw2 Second raw I/O device
2005 ...
2006
2007 163 char Radio Tech BIM-XXX-RS232 radio modem
2008 0 = /dev/bimrt0 First BIM radio modem
2009 1 = /dev/bimrt1 Second BIM radio modem
2010 ...
2011
2012 164 char Chase Research AT/PCI-Fast serial card
2013 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2014 ...
2015 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2016 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2017 ...
2018 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2019 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2020 ...
2021 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2022 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2023 ...
2024 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2025
2026 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2027 0 = /dev/cuch0 Callout device for ttyCH0
2028 ...
2029 63 = /dev/cuch63 Callout device for ttyCH63
2030
2031 166 char ACM USB modems
2032 0 = /dev/ttyACM0 First ACM modem
2033 1 = /dev/ttyACM1 Second ACM modem
2034 ...
2035
2036 167 char ACM USB modems - alternate devices
2037 0 = /dev/cuacm0 Callout device for ttyACM0
2038 1 = /dev/cuacm1 Callout device for ttyACM1
2039 ...
2040
2041 168 char Eracom CSA7000 PCI encryption adaptor
2042 0 = /dev/ecsa0 First CSA7000
2043 1 = /dev/ecsa1 Second CSA7000
2044 ...
2045
2046 169 char Eracom CSA8000 PCI encryption adaptor
2047 0 = /dev/ecsa8-0 First CSA8000
2048 1 = /dev/ecsa8-1 Second CSA8000
2049 ...
2050
2051 170 char AMI MegaRAC remote access controller
2052 0 = /dev/megarac0 First MegaRAC card
2053 1 = /dev/megarac1 Second MegaRAC card
2054 ...
2055
2056 171 char Reserved for IEEE 1394 (Firewire)
2057
2058
2059 172 char Moxa Intellio serial card
2060 0 = /dev/ttyMX0 First Moxa port
2061 1 = /dev/ttyMX1 Second Moxa port
2062 ...
2063 127 = /dev/ttyMX127 128th Moxa port
2064 128 = /dev/moxactl Moxa control port
2065
2066 173 char Moxa Intellio serial card - alternate devices
2067 0 = /dev/cumx0 Callout device for ttyMX0
2068 1 = /dev/cumx1 Callout device for ttyMX1
2069 ...
2070 127 = /dev/cumx127 Callout device for ttyMX127
2071
2072 174 char SmartIO serial card
2073 0 = /dev/ttySI0 First SmartIO port
2074 1 = /dev/ttySI1 Second SmartIO port
2075 ...
2076
2077 175 char SmartIO serial card - alternate devices
2078 0 = /dev/cusi0 Callout device for ttySI0
2079 1 = /dev/cusi1 Callout device for ttySI1
2080 ...
2081
2082 176 char nCipher nFast PCI crypto accelerator
2083 0 = /dev/nfastpci0 First nFast PCI device
2084 1 = /dev/nfastpci1 First nFast PCI device
2085 ...
2086
2087 177 char TI PCILynx memory spaces
2088 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2089 ...
2090 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2091 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2092 ...
2093 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2094 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2095 ...
2096 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2097
2098 178 char Giganet cLAN1xxx virtual interface adapter
2099 0 = /dev/clanvi0 First cLAN adapter
2100 1 = /dev/clanvi1 Second cLAN adapter
2101 ...
2102
2103 179 char CCube DVXChip-based PCI products
2104 0 = /dev/dvxirq0 First DVX device
2105 1 = /dev/dvxirq1 Second DVX device
2106 ...
2107
2108 180 char USB devices
2109 0 = /dev/usb/lp0 First USB printer
2110 ...
2111 15 = /dev/usb/lp15 16th USB printer
2112 16 = /dev/usb/mouse0 First USB mouse
2113 ...
2114 31 = /dev/usb/mouse15 16th USB mouse
2115 32 = /dev/usb/ez0 First USB firmware loader
2116 ...
2117 47 = /dev/usb/ez15 16th USB firmware loader
2118 48 = /dev/usb/scanner0 First USB scanner
2119 ...
2120 63 = /dev/usb/scanner15 16th USB scanner
2121 64 = /dev/usb/rio500 Diamond Rio 500
2122
2123 181 char Conrad Electronic parallel port radio clocks
2124 0 = /dev/pcfclock0 First Conrad radio clock
2125 1 = /dev/pcfclock1 Second Conrad radio clock
2126 ...
2127
2128 182 char Picture Elements THR2 binarizer
2129 0 = /dev/pethr0 First THR2 board
2130 1 = /dev/pethr1 Second THR2 board
2131 ...
2132
2133 183 char SST 5136-DN DeviceNet interface
2134 0 = /dev/ss5136dn0 First DeviceNet interface
2135 1 = /dev/ss5136dn1 Second DeviceNet interface
2136 ...
2137
2138 This device used to be assigned to major number 144.
2139 It had to be moved due to an unfortunate conflict.
2140
2141 184 char Picture Elements' video simulator/sender
2142 0 = /dev/pevss0 First sender board
2143 1 = /dev/pevss1 Second sender board
2144 ...
2145
2146 185 char InterMezzo high availability file system
2147 0 = /dev/intermezzo0 First cache manager
2148 1 = /dev/intermezzo1 Second cache manager
2149 ...
2150
2151 See http://www.inter-mezzo.org/ for more information.
2152
2153 186 char Object-based storage control device
2154 0 = /dev/obd0 First obd control device
2155 1 = /dev/obd1 Second obd control device
2156 ...
2157
2158 See ftp://ftp.lustre.org/pub/obd for code and information.
2159
2160 187 char DESkey hardware encryption device
2161 0 = /dev/deskey0 First DES key
2162 1 = /dev/deskey1 Second DES key
2163 ...
2164
2165 188 char USB serial converters
2166 0 = /dev/ttyUSB0 First USB serial converter
2167 1 = /dev/ttyUSB1 Second USB serial converter
2168 ...
2169
2170 189 char USB serial converters - alternate devices
2171 0 = /dev/cuusb0 Callout device for ttyUSB0
2172 1 = /dev/cuusb1 Callout device for ttyUSB1
2173 ...
2174
2175 190 char Kansas City tracker/tuner card
2176 0 = /dev/kctt0 First KCT/T card
2177 1 = /dev/kctt1 Second KCT/T card
2178 ...
2179
2180 191 char Reserved for PCMCIA
2181
2182 192 char Kernel profiling interface
2183 0 = /dev/profile Profiling control device
2184 1 = /dev/profile0 Profiling device for CPU 0
2185 2 = /dev/profile1 Profiling device for CPU 1
2186 ...
2187
2188 193 char Kernel event-tracing interface
2189 0 = /dev/trace Tracing control device
2190 1 = /dev/trace0 Tracing device for CPU 0
2191 2 = /dev/trace1 Tracing device for CPU 1
2192 ...
2193
2194 194 char linVideoStreams (LINVS)
2195 0 = /dev/mvideo/status0 Video compression status
2196 1 = /dev/mvideo/stream0 Video stream
2197 2 = /dev/mvideo/frame0 Single compressed frame
2198 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2199 4 = /dev/mvideo/codec0 Direct codec access
2200 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2201
2202 16 = /dev/mvideo/status1 Second device
2203 ...
2204 32 = /dev/mvideo/status2 Third device
2205 ...
2206 ...
2207 240 = /dev/mvideo/status15 16th device
2208 ...
2209
2210 195 char Nvidia graphics devices
2211 0 = /dev/nvidia0 First Nvidia card
2212 1 = /dev/nvidia1 Second Nvidia card
2213 ...
2214 255 = /dev/nvidiactl Nvidia card control device
2215
2216 196-197 UNASSIGNED
2217
2218 198 char Total Impact TPMP2 quad coprocessor PCI card
2219 0 = /dev/tpmp2/0 First card
2220 1 = /dev/tpmp2/1 Second card
2221 ...
2222
2223 199 char Veritas volume manager (VxVM) volumes
2224 0 = /dev/vx/rdsk/*/* First volume
2225 1 = /dev/vx/rdsk/*/* Second volume
2226 ...
2227 block Veritas volume manager (VxVM) volumes
2228 0 = /dev/vx/dsk/*/* First volume
2229 1 = /dev/vx/dsk/*/* First volume
2230 ...
2231
2232 The namespace in these directories is maintained by
2233 the user space VxVM software.
2234
2235 200 char Veritas VxVM configuration interface
2236 0 = /dev/vx/config Configuration access node
2237 1 = /dev/vx/trace Volume i/o trace access node
2238 2 = /dev/vx/iod Volume i/o daemon access node
2239 3 = /dev/vx/info Volume information access node
2240 4 = /dev/vx/task Volume tasks access node
2241 5 = /dev/vx/taskmon Volume tasks monitor daemon
2242
2243 201 char Veritas VxVM dynamic multipathing driver
2244 0 = /dev/vx/rdmp/* First multipath device
2245 1 = /dev/vx/rdmp/* Second multipath device
2246 ...
2247 block Veritas VxVM dynamic multipathing driver
2248 0 = /dev/vx/dmp/* First multipath device
2249 1 = /dev/vx/dmp/* Second multipath device
2250 ...
2251
2252 The namespace in these directories is maintained by
2253 the user space VxVM software.
2254
2255 202 char CPU model-specific registers
2256 0 = /dev/cpu/0/msr MSRs on CPU 0
2257 1 = /dev/cpu/1/msr MSRs on CPU 1
2258 ...
2259
2260 203 char CPU CPUID information
2261 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2262 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2263 ...
2264
2265 204 char Low-density serial ports
2266 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2267 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2268 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2269 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2270 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2271 5 = /dev/ttySA0 StrongARM builtin serial port 0
2272 6 = /dev/ttySA1 StrongARM builtin serial port 1
2273 7 = /dev/ttySA2 StrongARM builtin serial port 2
2274 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2275 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2276 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2277 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2278 12 = /dev/ttyFW0 Firmware console - port 0
2279 13 = /dev/ttyFW1 Firmware console - port 1
2280 14 = /dev/ttyFW2 Firmware console - port 2
2281 15 = /dev/ttyFW3 Firmware console - port 3
2282 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2283 ...
2284 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2285
2286 205 char Low-density serial ports (alternate device)
2287 0 = /dev/culu0 Callout device for ttyLU0
2288 1 = /dev/culu1 Callout device for ttyLU1
2289 2 = /dev/culu2 Callout device for ttyLU2
2290 3 = /dev/culu3 Callout device for ttyLU3
2291 4 = /dev/cufb0 Callout device for ttyFB0
2292 5 = /dev/cusa0 Callout device for ttySA0
2293 6 = /dev/cusa1 Callout device for ttySA1
2294 7 = /dev/cusa2 Callout device for ttySA2
2295 8 = /dev/cusc0 Callout device for ttySC0
2296 9 = /dev/cusc1 Callout device for ttySC1
2297 10 = /dev/cusc2 Callout device for ttySC2
2298 11 = /dev/cusc3 Callout device for ttySC3
2299 12 = /dev/cufw0 Callout device for ttyFW0
2300 13 = /dev/cufw1 Callout device for ttyFW1
2301 14 = /dev/cufw2 Callout device for ttyFW2
2302 15 = /dev/cufw3 Callout device for ttyFW3
2303 16 = /dev/cuam0 Callout device for ttyAM0
2304 ...
2305 31 = /dev/cuam15 Callout device for ttyAM15
2306
2307 206 char OnStream SC-x0 tape devices
2308 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2309 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2310 ...
2311 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2312 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2313 ...
2314 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2315 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2316 ...
2317 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2318 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2319 ...
2320 128 = /dev/nosst0 No rewind version of /dev/osst0
2321 129 = /dev/nosst1 No rewind version of /dev/osst1
2322 ...
2323 160 = /dev/nosst0l No rewind version of /dev/osst0l
2324 161 = /dev/nosst1l No rewind version of /dev/osst1l
2325 ...
2326 192 = /dev/nosst0m No rewind version of /dev/osst0m
2327 193 = /dev/nosst1m No rewind version of /dev/osst1m
2328 ...
2329 224 = /dev/nosst0a No rewind version of /dev/osst0a
2330 225 = /dev/nosst1a No rewind version of /dev/osst1a
2331 ...
2332
2333 The OnStream SC-x0 SCSI tapes do not support the
2334 standard SCSI SASD command set and therefore need
2335 their own driver "osst". Note that the IDE, USB (and
2336 maybe ParPort) versions may be driven via ide-scsi or
2337 usb-storage SCSI emulation and this osst device and
2338 driver as well. The ADR-x0 drives are QIC-157
2339 compliant and don't need osst.
2340
2341 207 char Compaq ProLiant health feature indicate
2342 0 = /dev/cpqhealth/cpqw Redirector interface
2343 1 = /dev/cpqhealth/crom EISA CROM
2344 2 = /dev/cpqhealth/cdt Data Table
2345 3 = /dev/cpqhealth/cevt Event Log
2346 4 = /dev/cpqhealth/casr Automatic Server Recovery
2347 5 = /dev/cpqhealth/cecc ECC Memory
2348 6 = /dev/cpqhealth/cmca Machine Check Architecture
2349 7 = /dev/cpqhealth/ccsm Deprecated CDT
2350 8 = /dev/cpqhealth/cnmi NMI Handling
2351 9 = /dev/cpqhealth/css Sideshow Management
2352 10 = /dev/cpqhealth/cram CMOS interface
2353 11 = /dev/cpqhealth/cpci PCI IRQ interface
2354
2355 208 char User space serial ports
2356 0 = /dev/ttyU0 First user space serial port
2357 1 = /dev/ttyU1 Second user space serial port
2358 ...
2359
2360 209 char User space serial ports (alternate devices)
2361 0 = /dev/cuu0 Callout device for ttyU0
2362 1 = /dev/cuu1 Callout device for ttyU1
2363 ...
2364
2365 210 char SBE, Inc. sync/async serial card
2366 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2367 1 = /dev/sbei/dld0 Download device for board 0
2368 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2369 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2370 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2371 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2372 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2373 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2374 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2375 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2376 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2377 11 = /dev/sbei/dld1 Download device for board 1
2378 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2379 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2380 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2381 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2382 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2383 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2384 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2385 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2386 ...
2387
2388 Yes, each board is really spaced 10 (decimal) apart.
2389
2390 211 char Addinum CPCI1500 digital I/O card
2391 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2392 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2393 ...
2394
2395 216 char USB BlueTooth devices
2396 0 = /dev/ttyUB0 First USB BlueTooth device
2397 1 = /dev/ttyUB1 Second USB BlueTooth device
2398 ...
2399
2400 217 char USB BlueTooth devices (alternate devices)
2401 0 = /dev/cuub0 Callout device for ttyUB0
2402 1 = /dev/cuub1 Callout device for ttyUB1
2403 ...
2404
2405 218 char The Logical Company bus Unibus/Qbus adapters
2406 0 = /dev/logicalco/bci/0 First bus adapter
2407 1 = /dev/logicalco/bci/1 First bus adapter
2408 ...
2409
2410 219 char The Logical Company DCI-1300 digital I/O card
2411 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2412 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2413 ...
2414
2415 220 char Myricom Myrinet "GM" board
2416 0 = /dev/myricom/gm0 First Myrinet GM board
2417 1 = /dev/myricom/gmp0 First board "root access"
2418 2 = /dev/myricom/gm1 Second Myrinet GM board
2419 3 = /dev/myricom/gmp1 Second board "root access"
2420 ...
2421
2422 221 char VME bus
2423 0 = /dev/bus/vme/m0 First master image
2424 1 = /dev/bus/vme/m1 Second master image
2425 2 = /dev/bus/vme/m2 Third master image
2426 3 = /dev/bus/vme/m3 Fourth master image
2427 4 = /dev/bus/vme/s0 First slave image
2428 5 = /dev/bus/vme/s1 Second slave image
2429 6 = /dev/bus/vme/s2 Third slave image
2430 7 = /dev/bus/vme/s3 Fourth slave image
2431 8 = /dev/bus/vme/ctl Control
2432
2433 It is expected that all VME bus drivers will use the
2434 same interface. For interface documentation see
2435 http://www.vmelinux.org/.
2436
2437 224 char A2232 serial card
2438 0 = /dev/ttyY0 First A2232 port
2439 1 = /dev/cuy0 Second A2232 port
2440 ...
2441
2442 225 char A2232 serial card (alternate devices)
2443 0 = /dev/cuy0 Callout device for ttyY0
2444 1 = /dev/cuy1 Callout device for ttyY1
2445 ...
2446
2447 226-239 UNASSIGNED
2448
2449 240-254 LOCAL/EXPERIMENTAL USE
2450
2451 255 RESERVED
2452
2453 This major is reserved to assist the expansion to a
2454 larger number space. No device nodes with this major
2455 should ever be created on the filesystem.
2456
2457 **** ADDITIONAL /dev DIRECTORY ENTRIES
2458
2459 This section details additional entries that should or may exist in
2460 the /dev directory. It is preferred that symbolic links use the same
2461 form (absolute or relative) as is indicated here. Links are
2462 classified as "hard" or "symbolic" depending on the preferred type of
2463 link; if possible, the indicated type of link should be used.
2464
2465
2466 Compulsory links
2467
2468 These links should exist on all systems:
2469
2470 /dev/fd /proc/self/fd symbolic File descriptors
2471 /dev/stdin fd/0 symbolic stdin file descriptor
2472 /dev/stdout fd/1 symbolic stdout file descriptor
2473 /dev/stderr fd/2 symbolic stderr file descriptor
2474 /dev/nfsd socksys symbolic Required by iBCS-2
2475 /dev/X0R null symbolic Required by iBCS-2
2476
2477 Note: /dev/X0R is <letter X>-<digit 0>-<letter R>.
2478
2479 Recommended links
2480
2481 It is recommended that these links exist on all systems:
2482
2483 /dev/core /proc/kcore symbolic Backward compatibility
2484 /dev/ramdisk ram0 symbolic Backward compatibility
2485 /dev/ftape qft0 symbolic Backward compatibility
2486 /dev/bttv0 video0 symbolic Backward compatibility
2487 /dev/radio radio0 symbolic Backward compatibility
2488 /dev/i2o* /dev/i2o/* symbolic Backward compatibility
2489 /dev/scd? sr? hard Alternate SCSI CD-ROM name
2490
2491 Locally defined links
2492
2493 The following links may be established locally to conform to the
2494 configuration of the system. This is merely a tabulation of existing
2495 practice, and does not constitute a recommendation. However, if they
2496 exist, they should have the following uses.
2497
2498 /dev/mouse mouse port symbolic Current mouse device
2499 /dev/tape tape device symbolic Current tape device
2500 /dev/cdrom CD-ROM device symbolic Current CD-ROM device
2501 /dev/cdwriter CD-writer symbolic Current CD-writer device
2502 /dev/scanner scanner symbolic Current scanner device
2503 /dev/modem modem port symbolic Current dialout device
2504 /dev/root root device symbolic Current root filesystem
2505 /dev/swap swap device symbolic Current swap device
2506
2507 /dev/modem should not be used for a modem which supports dialin as
2508 well as dialout, as it tends to cause lock file problems. If it
2509 exists, /dev/modem should point to the appropriate primary TTY device
2510 (the use of the alternate callout devices is deprecated).
2511
2512 For SCSI devices, /dev/tape and /dev/cdrom should point to the
2513 ``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas
2514 /dev/cdwriter and /dev/scanner should point to the appropriate generic
2515 SCSI devices (/dev/sg*).
2516
2517 /dev/mouse may point to a primary serial TTY device, a hardware mouse
2518 device, or a socket for a mouse driver program (e.g. /dev/gpmdata).
2519
2520 Sockets and pipes
2521
2522 Non-transient sockets and named pipes may exist in /dev. Common entries are:
2523
2524 /dev/printer socket lpd local socket
2525 /dev/log socket syslog local socket
2526 /dev/gpmdata socket gpm mouse multiplexer
2527
2528 Mount points
2529
2530 The following names are reserved for mounting special filesystems
2531 under /dev. These special filesystems provide kernel interfaces that
2532 cannot be provided with standard device nodes.
2533
2534 /dev/pts devpts PTY slave filesystem
2535 /dev/shm shmfs POSIX shared memory maintenance access
2536
2537 **** TERMINAL DEVICES
2538
2539 Terminal, or TTY devices are a special class of character devices. A
2540 terminal device is any device that could act as a controlling terminal
2541 for a session; this includes virtual consoles, serial ports, and
2542 pseudoterminals (PTYs).
2543
2544 All terminal devices share a common set of capabilities known as line
2545 diciplines; these include the common terminal line dicipline as well
2546 as SLIP and PPP modes.
2547
2548 All terminal devices are named similarly; this section explains the
2549 naming and use of the various types of TTYs. Note that the naming
2550 conventions include several historical warts; some of these are
2551 Linux-specific, some were inherited from other systems, and some
2552 reflect Linux outgrowing a borrowed convention.
2553
2554 A hash mark (#) in a device name is used here to indicate a decimal
2555 number without leading zeroes.
2556
2557 Virtual consoles and the console device
2558
2559 Virtual consoles are full-screen terminal displays on the system video
2560 monitor. Virtual consoles are named /dev/tty#, with numbering
2561 starting at /dev/tty1; /dev/tty0 is the current virtual console.
2562 /dev/tty0 is the device that should be used to access the system video
2563 card on those architectures for which the frame buffer devices
2564 (/dev/fb*) are not applicable. Do not use /dev/console
2565 for this purpose.
2566
2567 The console device, /dev/console, is the device to which system
2568 messages should be sent, and on which logins should be permitted in
2569 single-user mode. Starting with Linux 2.1.71, /dev/console is managed
2570 by the kernel; for previous versions it should be a symbolic link to
2571 either /dev/tty0, a specific virtual console such as /dev/tty1, or to
2572 a serial port primary (tty*, not cu*) device, depending on the
2573 configuration of the system.
2574
2575 Serial ports
2576
2577 Serial ports are RS-232 serial ports and any device which simulates
2578 one, either in hardware (such as internal modems) or in software (such
2579 as the ISDN driver.) Under Linux, each serial ports has two device
2580 names, the primary or callin device and the alternate or callout one.
2581 Each kind of device is indicated by a different letter. For any
2582 letter X, the names of the devices are /dev/ttyX# and /dev/cux#,
2583 respectively; for historical reasons, /dev/ttyS# and /dev/ttyC#
2584 correspond to /dev/cua# and /dev/cub#. In the future, it should be
2585 expected that multiple letters will be used; all letters will be upper
2586 case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the
2587 "cu" device (e.g. /dev/cudp#).
2588
2589 The names /dev/ttyQ# and /dev/cuq# are reserved for local use.
2590
2591 The alternate devices provide for kernel-based exclusion and somewhat
2592 different defaults than the primary devices. Their main purpose is to
2593 allow the use of serial ports with programs with no inherent or broken
2594 support for serial ports. Their use is deprecated, and they may be
2595 removed from a future version of Linux.
2596
2597 Arbitration of serial ports is provided by the use of lock files with
2598 the names /var/lock/LCK..ttyX#. The contents of the lock file should
2599 be the PID of the locking process as an ASCII number.
2600
2601 It is common practice to install links such as /dev/modem
2602 which point to serial ports. In order to ensure proper locking in the
2603 presence of these links, it is recommended that software chase
2604 symlinks and lock all possible names; additionally, it is recommended
2605 that a lock file be installed with the corresponding alternate
2606 device. In order to avoid deadlocks, it is recommended that the locks
2607 are acquired in the following order, and released in the reverse:
2608
2609 1. The symbolic link name, if any (/var/lock/LCK..modem)
2610 2. The "tty" name (/var/lock/LCK..ttyS2)
2611 3. The alternate device name (/var/lock/LCK..cua2)
2612
2613 In the case of nested symbolic links, the lock files should be
2614 installed in the order the symlinks are resolved.
2615
2616 Under no circumstances should an application hold a lock while waiting
2617 for another to be released. In addition, applications which attempt
2618 to create lock files for the corresponding alternate device names
2619 should take into account the possibility of being used on a non-serial
2620 port TTY, for which no alternate device would exist.
2621
2622 Pseudoterminals (PTYs)
2623
2624 Pseudoterminals, or PTYs, are used to create login sessions or provide
2625 other capabilities requiring a TTY line dicipline (including SLIP or
2626 PPP capability) to arbitrary data-generation processes. Each PTY has
2627 a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named
2628 /dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by
2629 allowing each master side to be opened only once.
2630
2631 Once the master side has been opened, the corresponding slave device
2632 can be used in the same manner as any TTY device. The master and
2633 slave devices are connected by the kernel, generating the equivalent
2634 of a bidirectional pipe with TTY capabilities.
2635
2636 Recent versions of the Linux kernels and GNU libc contain support for
2637 the System V/Unix98 naming scheme for PTYs, which assigns a common
2638 device, /dev/ptmx, to all the masters (opening it will automatically
2639 give you a previously unassigned PTY) and a subdirectory, /dev/pts,
2640 for the slaves; the slaves are named with decimal integers (/dev/pts/#
2641 in our notation). This removes the problem of exhausting the
2642 namespace and enables the kernel to automatically create the device
2643 nodes for the slaves on demand using the "devpts" filesystem.
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