2 LINUX ALLOCATED DEVICES (2.6+ version)
4 Maintained by Alan Cox <device@lanana.org>
6 Last revised: 6th April 2009
8 This list is the Linux Device List, the official registry of allocated
9 device numbers and /dev directory nodes for the Linux operating
12 The latest version of this list is available from
13 http://www.lanana.org/docs/device-list/ or
14 ftp://ftp.kernel.org/pub/linux/docs/device-list/. This version may be
15 newer than the one distributed with the Linux kernel.
17 The LaTeX version of this document is no longer maintained.
19 This document is included by reference into the Filesystem Hierarchy
20 Standard (FHS). The FHS is available from http://www.pathname.com/fhs/.
22 Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga
23 platform only. Allocations marked (68k/Atari) apply to Linux/68k on
24 the Atari platform only.
26 The symbol {2.6} means the allocation is obsolete and scheduled for
27 removal once kernel version 2.6 (or equivalent) is released. Some of these
28 allocations have already been removed.
30 This document is in the public domain. The author requests, however,
31 that semantically altered versions are not distributed without
32 permission of the author, assuming the author can be contacted without
33 an unreasonable effort.
35 In particular, please don't sent patches for this list to Linus, at
36 least not without contacting me first.
38 I do not have any information about these devices beyond what appears
39 on this list. Any such information requests will be deleted without
43 **** DEVICE DRIVERS AUTHORS PLEASE READ THIS ****
45 To have a major number allocated, or a minor number in situations
46 where that applies (e.g. busmice), please contact me with the
47 appropriate device information. Also, if you have additional
48 information regarding any of the devices listed below, or if I have
49 made a mistake, I would greatly appreciate a note.
51 I do, however, make a few requests about the nature of your report.
52 This is necessary for me to be able to keep this list up to date and
53 correct in a timely manner. First of all, *please* send it to the
54 correct address... <device@lanana.org>. I receive hundreds of email
55 messages a day, so mail sent to other addresses may very well get lost
56 in the avalanche. Please put in a descriptive subject, so I can find
57 your mail again should I need to. Too many people send me email
58 saying just "device number request" in the subject.
60 Second, please include a description of the device *in the same format
61 as this list*. The reason for this is that it is the only way I have
62 found to ensure I have all the requisite information to publish your
63 device and avoid conflicts.
65 Third, please don't assume that the distributed version of the list is
66 up to date. Due to the number of registrations I have to maintain it
67 in "batch mode", so there is likely additional registrations that
68 haven't been listed yet.
70 Fourth, remember that Linux now has extensive support for dynamic allocation
71 of device numbering and can use sysfs and udev to handle the naming needs.
72 There are still some exceptions in the serial and boot device area. Before
73 asking for a device number make sure you actually need one.
75 Finally, sometimes I have to play "namespace police." Please don't be
76 offended. I often get submissions for /dev names that would be bound
77 to cause conflicts down the road. I am trying to avoid getting in a
78 situation where we would have to suffer an incompatible forward
79 change. Therefore, please consult with me *before* you make your
80 device names and numbers in any way public, at least to the point
81 where it would be at all difficult to get them changed.
83 Your cooperation is appreciated.
86 0 Unnamed devices (e.g. non-device mounts)
87 0 = reserved as null device number
88 See block major 144, 145, 146 for expansion areas.
91 1 = /dev/mem Physical memory access
92 2 = /dev/kmem Kernel virtual memory access
93 3 = /dev/null Null device
94 4 = /dev/port I/O port access
95 5 = /dev/zero Null byte source
96 6 = /dev/core OBSOLETE - replaced by /proc/kcore
97 7 = /dev/full Returns ENOSPC on write
98 8 = /dev/random Nondeterministic random number gen.
99 9 = /dev/urandom Faster, less secure random number gen.
100 10 = /dev/aio Asynchronous I/O notification interface
101 11 = /dev/kmsg Writes to this come out as printk's, reads
102 export the buffered printk records.
103 12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore
106 0 = /dev/ram0 First RAM disk
107 1 = /dev/ram1 Second RAM disk
109 250 = /dev/initrd Initial RAM disk
111 Older kernels had /dev/ramdisk (1, 1) here.
112 /dev/initrd refers to a RAM disk which was preloaded
113 by the boot loader; newer kernels use /dev/ram0 for
116 2 char Pseudo-TTY masters
117 0 = /dev/ptyp0 First PTY master
118 1 = /dev/ptyp1 Second PTY master
120 255 = /dev/ptyef 256th PTY master
122 Pseudo-tty's are named as follows:
123 * Masters are "pty", slaves are "tty";
124 * the fourth letter is one of pqrstuvwxyzabcde indicating
125 the 1st through 16th series of 16 pseudo-ttys each, and
126 * the fifth letter is one of 0123456789abcdef indicating
127 the position within the series.
129 These are the old-style (BSD) PTY devices; Unix98
130 devices are on major 128 and above and use the PTY
131 master multiplex (/dev/ptmx) to acquire a PTY on
135 0 = /dev/fd0 Controller 0, drive 0, autodetect
136 1 = /dev/fd1 Controller 0, drive 1, autodetect
137 2 = /dev/fd2 Controller 0, drive 2, autodetect
138 3 = /dev/fd3 Controller 0, drive 3, autodetect
139 128 = /dev/fd4 Controller 1, drive 0, autodetect
140 129 = /dev/fd5 Controller 1, drive 1, autodetect
141 130 = /dev/fd6 Controller 1, drive 2, autodetect
142 131 = /dev/fd7 Controller 1, drive 3, autodetect
144 To specify format, add to the autodetect device number:
145 0 = /dev/fd? Autodetect format
146 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
147 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
148 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
149 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
150 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
151 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
152 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
153 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
154 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
155 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
156 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
158 12 = /dev/fd?u360 3.5" 360K Double Density(2)
159 16 = /dev/fd?u720 3.5" 720K Double Density(1)
160 120 = /dev/fd?u800 3.5" 800K Double Density(2)
161 52 = /dev/fd?u820 3.5" 820K Double Density
162 68 = /dev/fd?u830 3.5" 830K Double Density
163 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
164 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
165 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
166 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
167 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
168 60 = /dev/fd?u1722 3.5" 1722K High Density
169 76 = /dev/fd?u1743 3.5" 1743K High Density
170 96 = /dev/fd?u1760 3.5" 1760K High Density
171 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
172 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
173 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
174 104 = /dev/fd?u3200 3.5" 3200K Extra Density
175 108 = /dev/fd?u3520 3.5" 3520K Extra Density
176 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
178 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
180 (1) Autodetectable format
181 (2) Autodetectable format in a Double Density (720K) drive only
182 (3) Autodetectable format in a High Density (1440K) drive only
184 NOTE: The letter in the device name (d, q, h or u)
185 signifies the type of drive: 5.25" Double Density (d),
186 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
187 (any model, u). The use of the capital letters D, H
188 and E for the 3.5" models have been deprecated, since
189 the drive type is insignificant for these devices.
191 3 char Pseudo-TTY slaves
192 0 = /dev/ttyp0 First PTY slave
193 1 = /dev/ttyp1 Second PTY slave
195 255 = /dev/ttyef 256th PTY slave
197 These are the old-style (BSD) PTY devices; Unix98
198 devices are on major 136 and above.
200 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
201 0 = /dev/hda Master: whole disk (or CD-ROM)
202 64 = /dev/hdb Slave: whole disk (or CD-ROM)
204 For partitions, add to the whole disk device number:
205 0 = /dev/hd? Whole disk
206 1 = /dev/hd?1 First partition
207 2 = /dev/hd?2 Second partition
209 63 = /dev/hd?63 63rd partition
211 For Linux/i386, partitions 1-4 are the primary
212 partitions, and 5 and above are logical partitions.
213 Other versions of Linux use partitioning schemes
214 appropriate to their respective architectures.
217 0 = /dev/tty0 Current virtual console
219 1 = /dev/tty1 First virtual console
221 63 = /dev/tty63 63rd virtual console
222 64 = /dev/ttyS0 First UART serial port
224 255 = /dev/ttyS191 192nd UART serial port
226 UART serial ports refer to 8250/16450/16550 series devices.
228 Older versions of the Linux kernel used this major
229 number for BSD PTY devices. As of Linux 2.1.115, this
230 is no longer supported. Use major numbers 2 and 3.
232 4 block Aliases for dynamically allocated major devices to be used
233 when its not possible to create the real device nodes
234 because the root filesystem is mounted read-only.
238 5 char Alternate TTY devices
239 0 = /dev/tty Current TTY device
240 1 = /dev/console System console
241 2 = /dev/ptmx PTY master multiplex
242 3 = /dev/ttyprintk User messages via printk TTY device
243 64 = /dev/cua0 Callout device for ttyS0
245 255 = /dev/cua191 Callout device for ttyS191
247 (5,1) is /dev/console starting with Linux 2.1.71. See
248 the section on terminal devices for more information
251 6 char Parallel printer devices
252 0 = /dev/lp0 Parallel printer on parport0
253 1 = /dev/lp1 Parallel printer on parport1
256 Current Linux kernels no longer have a fixed mapping
257 between parallel ports and I/O addresses. Instead,
258 they are redirected through the parport multiplex layer.
260 7 char Virtual console capture devices
261 0 = /dev/vcs Current vc text contents
262 1 = /dev/vcs1 tty1 text contents
264 63 = /dev/vcs63 tty63 text contents
265 128 = /dev/vcsa Current vc text/attribute contents
266 129 = /dev/vcsa1 tty1 text/attribute contents
268 191 = /dev/vcsa63 tty63 text/attribute contents
270 NOTE: These devices permit both read and write access.
272 7 block Loopback devices
273 0 = /dev/loop0 First loop device
274 1 = /dev/loop1 Second loop device
277 The loop devices are used to mount filesystems not
278 associated with block devices. The binding to the
279 loop devices is handled by mount(8) or losetup(8).
281 8 block SCSI disk devices (0-15)
282 0 = /dev/sda First SCSI disk whole disk
283 16 = /dev/sdb Second SCSI disk whole disk
284 32 = /dev/sdc Third SCSI disk whole disk
286 240 = /dev/sdp Sixteenth SCSI disk whole disk
288 Partitions are handled in the same way as for IDE
289 disks (see major number 3) except that the limit on
292 9 char SCSI tape devices
293 0 = /dev/st0 First SCSI tape, mode 0
294 1 = /dev/st1 Second SCSI tape, mode 0
296 32 = /dev/st0l First SCSI tape, mode 1
297 33 = /dev/st1l Second SCSI tape, mode 1
299 64 = /dev/st0m First SCSI tape, mode 2
300 65 = /dev/st1m Second SCSI tape, mode 2
302 96 = /dev/st0a First SCSI tape, mode 3
303 97 = /dev/st1a Second SCSI tape, mode 3
305 128 = /dev/nst0 First SCSI tape, mode 0, no rewind
306 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
308 160 = /dev/nst0l First SCSI tape, mode 1, no rewind
309 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
311 192 = /dev/nst0m First SCSI tape, mode 2, no rewind
312 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
314 224 = /dev/nst0a First SCSI tape, mode 3, no rewind
315 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
318 "No rewind" refers to the omission of the default
319 automatic rewind on device close. The MTREW or MTOFFL
320 ioctl()'s can be used to rewind the tape regardless of
321 the device used to access it.
323 9 block Metadisk (RAID) devices
324 0 = /dev/md0 First metadisk group
325 1 = /dev/md1 Second metadisk group
328 The metadisk driver is used to span a
329 filesystem across multiple physical disks.
331 10 char Non-serial mice, misc features
332 0 = /dev/logibm Logitech bus mouse
333 1 = /dev/psaux PS/2-style mouse port
334 2 = /dev/inportbm Microsoft Inport bus mouse
335 3 = /dev/atibm ATI XL bus mouse
337 4 = /dev/amigamouse Amiga mouse (68k/Amiga)
338 5 = /dev/atarimouse Atari mouse
339 6 = /dev/sunmouse Sun mouse
340 7 = /dev/amigamouse1 Second Amiga mouse
341 8 = /dev/smouse Simple serial mouse driver
342 9 = /dev/pc110pad IBM PC-110 digitizer pad
343 10 = /dev/adbmouse Apple Desktop Bus mouse
344 11 = /dev/vrtpanel Vr41xx embedded touch panel
345 13 = /dev/vpcmouse Connectix Virtual PC Mouse
346 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
347 15 = /dev/touchscreen/mk712 MK712 touchscreen
348 128 = /dev/beep Fancy beep device
350 130 = /dev/watchdog Watchdog timer port
351 131 = /dev/temperature Machine internal temperature
352 132 = /dev/hwtrap Hardware fault trap
353 133 = /dev/exttrp External device trap
354 134 = /dev/apm_bios Advanced Power Management BIOS
355 135 = /dev/rtc Real Time Clock
356 139 = /dev/openprom SPARC OpenBoot PROM
357 140 = /dev/relay8 Berkshire Products Octal relay card
358 141 = /dev/relay16 Berkshire Products ISO-16 relay card
360 143 = /dev/pciconf PCI configuration space
361 144 = /dev/nvram Non-volatile configuration RAM
362 145 = /dev/hfmodem Soundcard shortwave modem control
363 146 = /dev/graphics Linux/SGI graphics device
364 147 = /dev/opengl Linux/SGI OpenGL pipe
365 148 = /dev/gfx Linux/SGI graphics effects device
366 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
367 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
368 151 = /dev/led Front panel LEDs
369 152 = /dev/kpoll Kernel Poll Driver
370 153 = /dev/mergemem Memory merge device
371 154 = /dev/pmu Macintosh PowerBook power manager
372 155 = /dev/isictl MultiTech ISICom serial control
373 156 = /dev/lcd Front panel LCD display
374 157 = /dev/ac Applicom Intl Profibus card
375 158 = /dev/nwbutton Netwinder external button
376 159 = /dev/nwdebug Netwinder debug interface
377 160 = /dev/nwflash Netwinder flash memory
378 161 = /dev/userdma User-space DMA access
379 162 = /dev/smbus System Management Bus
380 163 = /dev/lik Logitech Internet Keyboard
381 164 = /dev/ipmo Intel Intelligent Platform Management
382 165 = /dev/vmmon VMware virtual machine monitor
383 166 = /dev/i2o/ctl I2O configuration manager
384 167 = /dev/specialix_sxctl Specialix serial control
385 168 = /dev/tcldrv Technology Concepts serial control
386 169 = /dev/specialix_rioctl Specialix RIO serial control
387 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices
388 171 = /dev/srripc QNX4 API IPC manager
389 172 = /dev/usemaclone Semaphore clone device
390 173 = /dev/ipmikcs Intelligent Platform Management
391 174 = /dev/uctrl SPARCbook 3 microcontroller
392 175 = /dev/agpgart AGP Graphics Address Remapping Table
393 176 = /dev/gtrsc Gorgy Timing radio clock
394 177 = /dev/cbm Serial CBM bus
395 178 = /dev/jsflash JavaStation OS flash SIMM
396 179 = /dev/xsvc High-speed shared-mem/semaphore service
397 180 = /dev/vrbuttons Vr41xx button input device
398 181 = /dev/toshiba Toshiba laptop SMM support
399 182 = /dev/perfctr Performance-monitoring counters
400 183 = /dev/hwrng Generic random number generator
401 184 = /dev/cpu/microcode CPU microcode update interface
402 186 = /dev/atomicps Atomic shapshot of process state data
403 187 = /dev/irnet IrNET device
404 188 = /dev/smbusbios SMBus BIOS
405 189 = /dev/ussp_ctl User space serial port control
406 190 = /dev/crash Mission Critical Linux crash dump facility
407 191 = /dev/pcl181 <information missing>
408 192 = /dev/nas_xbus NAS xbus LCD/buttons access
409 193 = /dev/d7s SPARC 7-segment display
410 194 = /dev/zkshim Zero-Knowledge network shim control
411 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
412 196 = /dev/vfio/vfio VFIO userspace driver interface
413 198 = /dev/sexec Signed executable interface
414 199 = /dev/scanners/cuecat :CueCat barcode scanner
415 200 = /dev/net/tun TAP/TUN network device
416 201 = /dev/button/gulpb Transmeta GULP-B buttons
417 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control
418 203 = /dev/cuse Cuse (character device in user-space)
419 204 = /dev/video/em8300 EM8300 DVD decoder control
420 205 = /dev/video/em8300_mv EM8300 DVD decoder video
421 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
422 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
423 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
424 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
425 210 = /dev/impi/bt IMPI coprocessor block transfer
426 211 = /dev/impi/smic IMPI coprocessor stream interface
427 212 = /dev/watchdogs/0 First watchdog device
428 213 = /dev/watchdogs/1 Second watchdog device
429 214 = /dev/watchdogs/2 Third watchdog device
430 215 = /dev/watchdogs/3 Fourth watchdog device
431 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel
432 217 = /dev/ni/natmotn National Instruments Motion
433 218 = /dev/kchuid Inter-process chuid control
434 219 = /dev/modems/mwave MWave modem firmware upload
435 220 = /dev/mptctl Message passing technology (MPT) control
436 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver
437 222 = /dev/mvista/hasi Montavista PICMG high availability
438 223 = /dev/input/uinput User level driver support for input
439 224 = /dev/tpm TCPA TPM driver
440 225 = /dev/pps Pulse Per Second driver
441 226 = /dev/systrace Systrace device
442 227 = /dev/mcelog X86_64 Machine Check Exception driver
443 228 = /dev/hpet HPET driver
444 229 = /dev/fuse Fuse (virtual filesystem in user-space)
445 230 = /dev/midishare MidiShare driver
446 231 = /dev/snapshot System memory snapshot device
447 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions)
448 233 = /dev/kmview View-OS A process with a view
449 234 = /dev/btrfs-control Btrfs control device
450 235 = /dev/autofs Autofs control device
451 236 = /dev/mapper/control Device-Mapper control device
452 237 = /dev/loop-control Loopback control device
453 238 = /dev/vhost-net Host kernel accelerator for virtio net
455 240-254 Reserved for local use
456 255 Reserved for MISC_DYNAMIC_MINOR
458 11 char Raw keyboard device (Linux/SPARC only)
459 0 = /dev/kbd Raw keyboard device
461 11 char Serial Mux device (Linux/PA-RISC only)
462 0 = /dev/ttyB0 First mux port
463 1 = /dev/ttyB1 Second mux port
466 11 block SCSI CD-ROM devices
467 0 = /dev/scd0 First SCSI CD-ROM
468 1 = /dev/scd1 Second SCSI CD-ROM
471 The prefix /dev/sr (instead of /dev/scd) has been deprecated.
474 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
475 3 = /dev/tpqic11 QIC-11, rewind-on-close
476 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
477 5 = /dev/tpqic24 QIC-24, rewind-on-close
478 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
479 7 = /dev/tpqic120 QIC-120, rewind-on-close
480 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
481 9 = /dev/tpqic150 QIC-150, rewind-on-close
483 The device names specified are proposed -- if there
484 are "standard" names for these devices, please let me know.
489 0 = /dev/input/js0 First joystick
490 1 = /dev/input/js1 Second joystick
492 32 = /dev/input/mouse0 First mouse
493 33 = /dev/input/mouse1 Second mouse
495 63 = /dev/input/mice Unified mouse
496 64 = /dev/input/event0 First event queue
497 65 = /dev/input/event1 Second event queue
500 Each device type has 5 bits (32 minors).
502 13 block Previously used for the XT disk (/dev/xdN)
503 Deleted in kernel v3.9.
505 14 char Open Sound System (OSS)
506 0 = /dev/mixer Mixer control
507 1 = /dev/sequencer Audio sequencer
508 2 = /dev/midi00 First MIDI port
509 3 = /dev/dsp Digital audio
510 4 = /dev/audio Sun-compatible digital audio
512 7 = /dev/audioctl SPARC audio control device
513 8 = /dev/sequencer2 Sequencer -- alternate device
514 16 = /dev/mixer1 Second soundcard mixer control
515 17 = /dev/patmgr0 Sequencer patch manager
516 18 = /dev/midi01 Second MIDI port
517 19 = /dev/dsp1 Second soundcard digital audio
518 20 = /dev/audio1 Second soundcard Sun digital audio
519 33 = /dev/patmgr1 Sequencer patch manager
520 34 = /dev/midi02 Third MIDI port
521 50 = /dev/midi03 Fourth MIDI port
526 0 = /dev/js0 First analog joystick
527 1 = /dev/js1 Second analog joystick
529 128 = /dev/djs0 First digital joystick
530 129 = /dev/djs1 Second digital joystick
532 15 block Sony CDU-31A/CDU-33A CD-ROM
533 0 = /dev/sonycd Sony CDU-31a CD-ROM
535 16 char Non-SCSI scanners
536 0 = /dev/gs4500 Genius 4500 handheld scanner
538 16 block GoldStar CD-ROM
539 0 = /dev/gscd GoldStar CD-ROM
541 17 char OBSOLETE (was Chase serial card)
542 0 = /dev/ttyH0 First Chase port
543 1 = /dev/ttyH1 Second Chase port
545 17 block Optics Storage CD-ROM
546 0 = /dev/optcd Optics Storage CD-ROM
548 18 char OBSOLETE (was Chase serial card - alternate devices)
549 0 = /dev/cuh0 Callout device for ttyH0
550 1 = /dev/cuh1 Callout device for ttyH1
552 18 block Sanyo CD-ROM
553 0 = /dev/sjcd Sanyo CD-ROM
555 19 char Cyclades serial card
556 0 = /dev/ttyC0 First Cyclades port
558 31 = /dev/ttyC31 32nd Cyclades port
560 19 block "Double" compressed disk
561 0 = /dev/double0 First compressed disk
563 7 = /dev/double7 Eighth compressed disk
564 128 = /dev/cdouble0 Mirror of first compressed disk
566 135 = /dev/cdouble7 Mirror of eighth compressed disk
568 See the Double documentation for the meaning of the
571 20 char Cyclades serial card - alternate devices
572 0 = /dev/cub0 Callout device for ttyC0
574 31 = /dev/cub31 Callout device for ttyC31
576 20 block Hitachi CD-ROM (under development)
577 0 = /dev/hitcd Hitachi CD-ROM
579 21 char Generic SCSI access
580 0 = /dev/sg0 First generic SCSI device
581 1 = /dev/sg1 Second generic SCSI device
584 Most distributions name these /dev/sga, /dev/sgb...;
585 this sets an unnecessary limit of 26 SCSI devices in
586 the system and is counter to standard Linux
587 device-naming practice.
589 21 block Acorn MFM hard drive interface
590 0 = /dev/mfma First MFM drive whole disk
591 64 = /dev/mfmb Second MFM drive whole disk
593 This device is used on the ARM-based Acorn RiscPC.
594 Partitions are handled the same way as for IDE disks
595 (see major number 3).
597 22 char Digiboard serial card
598 0 = /dev/ttyD0 First Digiboard port
599 1 = /dev/ttyD1 Second Digiboard port
601 22 block Second IDE hard disk/CD-ROM interface
602 0 = /dev/hdc Master: whole disk (or CD-ROM)
603 64 = /dev/hdd Slave: whole disk (or CD-ROM)
605 Partitions are handled the same way as for the first
606 interface (see major number 3).
608 23 char Digiboard serial card - alternate devices
609 0 = /dev/cud0 Callout device for ttyD0
610 1 = /dev/cud1 Callout device for ttyD1
612 23 block Mitsumi proprietary CD-ROM
613 0 = /dev/mcd Mitsumi CD-ROM
615 24 char Stallion serial card
616 0 = /dev/ttyE0 Stallion port 0 card 0
617 1 = /dev/ttyE1 Stallion port 1 card 0
619 64 = /dev/ttyE64 Stallion port 0 card 1
620 65 = /dev/ttyE65 Stallion port 1 card 1
622 128 = /dev/ttyE128 Stallion port 0 card 2
623 129 = /dev/ttyE129 Stallion port 1 card 2
625 192 = /dev/ttyE192 Stallion port 0 card 3
626 193 = /dev/ttyE193 Stallion port 1 card 3
628 24 block Sony CDU-535 CD-ROM
629 0 = /dev/cdu535 Sony CDU-535 CD-ROM
631 25 char Stallion serial card - alternate devices
632 0 = /dev/cue0 Callout device for ttyE0
633 1 = /dev/cue1 Callout device for ttyE1
635 64 = /dev/cue64 Callout device for ttyE64
636 65 = /dev/cue65 Callout device for ttyE65
638 128 = /dev/cue128 Callout device for ttyE128
639 129 = /dev/cue129 Callout device for ttyE129
641 192 = /dev/cue192 Callout device for ttyE192
642 193 = /dev/cue193 Callout device for ttyE193
644 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
645 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
646 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
647 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
648 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
652 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
653 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
654 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
655 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
656 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
659 0 = /dev/qft0 Unit 0, rewind-on-close
660 1 = /dev/qft1 Unit 1, rewind-on-close
661 2 = /dev/qft2 Unit 2, rewind-on-close
662 3 = /dev/qft3 Unit 3, rewind-on-close
663 4 = /dev/nqft0 Unit 0, no rewind-on-close
664 5 = /dev/nqft1 Unit 1, no rewind-on-close
665 6 = /dev/nqft2 Unit 2, no rewind-on-close
666 7 = /dev/nqft3 Unit 3, no rewind-on-close
667 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
668 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
669 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
670 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
671 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
672 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
673 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
674 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
675 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
676 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
677 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
678 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
679 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
680 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
681 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
682 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
684 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
685 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
686 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
687 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
688 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
690 28 char Stallion serial card - card programming
691 0 = /dev/staliomem0 First Stallion card I/O memory
692 1 = /dev/staliomem1 Second Stallion card I/O memory
693 2 = /dev/staliomem2 Third Stallion card I/O memory
694 3 = /dev/staliomem3 Fourth Stallion card I/O memory
696 28 char Atari SLM ACSI laser printer (68k/Atari)
697 0 = /dev/slm0 First SLM laser printer
698 1 = /dev/slm1 Second SLM laser printer
700 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
701 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
702 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
703 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
704 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
706 28 block ACSI disk (68k/Atari)
707 0 = /dev/ada First ACSI disk whole disk
708 16 = /dev/adb Second ACSI disk whole disk
709 32 = /dev/adc Third ACSI disk whole disk
711 240 = /dev/adp 16th ACSI disk whole disk
713 Partitions are handled in the same way as for IDE
714 disks (see major number 3) except that the limit on
715 partitions is 15, like SCSI.
717 29 char Universal frame buffer
718 0 = /dev/fb0 First frame buffer
719 1 = /dev/fb1 Second frame buffer
721 31 = /dev/fb31 32nd frame buffer
723 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
724 0 = /dev/aztcd Aztech CD-ROM
726 30 char iBCS-2 compatibility devices
727 0 = /dev/socksys Socket access
728 1 = /dev/spx SVR3 local X interface
729 32 = /dev/inet/ip Network access
740 Additionally, iBCS-2 requires the following links:
742 /dev/ip -> /dev/inet/ip
743 /dev/icmp -> /dev/inet/icmp
744 /dev/ggp -> /dev/inet/ggp
745 /dev/ipip -> /dev/inet/ipip
746 /dev/tcp -> /dev/inet/tcp
747 /dev/egp -> /dev/inet/egp
748 /dev/pup -> /dev/inet/pup
749 /dev/udp -> /dev/inet/udp
750 /dev/idp -> /dev/inet/idp
751 /dev/rawip -> /dev/inet/rawip
752 /dev/inet/arp -> /dev/inet/udp
753 /dev/inet/rip -> /dev/inet/udp
754 /dev/nfsd -> /dev/socksys
755 /dev/X0R -> /dev/null (? apparently not required ?)
757 30 block Philips LMS CM-205 CD-ROM
758 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
760 /dev/lmscd is an older name for this device. This
761 driver does not work with the CM-205MS CD-ROM.
764 0 = /dev/mpu401data MPU-401 data port
765 1 = /dev/mpu401stat MPU-401 status port
767 31 block ROM/flash memory card
768 0 = /dev/rom0 First ROM card (rw)
770 7 = /dev/rom7 Eighth ROM card (rw)
771 8 = /dev/rrom0 First ROM card (ro)
773 15 = /dev/rrom7 Eighth ROM card (ro)
774 16 = /dev/flash0 First flash memory card (rw)
776 23 = /dev/flash7 Eighth flash memory card (rw)
777 24 = /dev/rflash0 First flash memory card (ro)
779 31 = /dev/rflash7 Eighth flash memory card (ro)
781 The read-write (rw) devices support back-caching
782 written data in RAM, as well as writing to flash RAM
783 devices. The read-only devices (ro) support reading
786 32 char Specialix serial card
787 0 = /dev/ttyX0 First Specialix port
788 1 = /dev/ttyX1 Second Specialix port
790 32 block Philips LMS CM-206 CD-ROM
791 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
793 33 char Specialix serial card - alternate devices
794 0 = /dev/cux0 Callout device for ttyX0
795 1 = /dev/cux1 Callout device for ttyX1
797 33 block Third IDE hard disk/CD-ROM interface
798 0 = /dev/hde Master: whole disk (or CD-ROM)
799 64 = /dev/hdf Slave: whole disk (or CD-ROM)
801 Partitions are handled the same way as for the first
802 interface (see major number 3).
804 34 char Z8530 HDLC driver
805 0 = /dev/scc0 First Z8530, first port
806 1 = /dev/scc1 First Z8530, second port
807 2 = /dev/scc2 Second Z8530, first port
808 3 = /dev/scc3 Second Z8530, second port
811 In a previous version these devices were named
812 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
815 34 block Fourth IDE hard disk/CD-ROM interface
816 0 = /dev/hdg Master: whole disk (or CD-ROM)
817 64 = /dev/hdh Slave: whole disk (or CD-ROM)
819 Partitions are handled the same way as for the first
820 interface (see major number 3).
822 35 char tclmidi MIDI driver
823 0 = /dev/midi0 First MIDI port, kernel timed
824 1 = /dev/midi1 Second MIDI port, kernel timed
825 2 = /dev/midi2 Third MIDI port, kernel timed
826 3 = /dev/midi3 Fourth MIDI port, kernel timed
827 64 = /dev/rmidi0 First MIDI port, untimed
828 65 = /dev/rmidi1 Second MIDI port, untimed
829 66 = /dev/rmidi2 Third MIDI port, untimed
830 67 = /dev/rmidi3 Fourth MIDI port, untimed
831 128 = /dev/smpte0 First MIDI port, SMPTE timed
832 129 = /dev/smpte1 Second MIDI port, SMPTE timed
833 130 = /dev/smpte2 Third MIDI port, SMPTE timed
834 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
836 35 block Slow memory ramdisk
837 0 = /dev/slram Slow memory ramdisk
839 36 char Netlink support
840 0 = /dev/route Routing, device updates, kernel to user
841 1 = /dev/skip enSKIP security cache control
842 3 = /dev/fwmonitor Firewall packet copies
843 16 = /dev/tap0 First Ethertap device
845 31 = /dev/tap15 16th Ethertap device
847 36 block OBSOLETE (was MCA ESDI hard disk)
850 0 = /dev/ht0 First IDE tape
851 1 = /dev/ht1 Second IDE tape
853 128 = /dev/nht0 First IDE tape, no rewind-on-close
854 129 = /dev/nht1 Second IDE tape, no rewind-on-close
857 Currently, only one IDE tape drive is supported.
859 37 block Zorro II ramdisk
860 0 = /dev/z2ram Zorro II ramdisk
862 38 char Myricom PCI Myrinet board
863 0 = /dev/mlanai0 First Myrinet board
864 1 = /dev/mlanai1 Second Myrinet board
867 This device is used for status query, board control
868 and "user level packet I/O." This board is also
869 accessible as a standard networking "eth" device.
871 38 block OBSOLETE (was Linux/AP+)
873 39 char ML-16P experimental I/O board
874 0 = /dev/ml16pa-a0 First card, first analog channel
875 1 = /dev/ml16pa-a1 First card, second analog channel
877 15 = /dev/ml16pa-a15 First card, 16th analog channel
878 16 = /dev/ml16pa-d First card, digital lines
879 17 = /dev/ml16pa-c0 First card, first counter/timer
880 18 = /dev/ml16pa-c1 First card, second counter/timer
881 19 = /dev/ml16pa-c2 First card, third counter/timer
882 32 = /dev/ml16pb-a0 Second card, first analog channel
883 33 = /dev/ml16pb-a1 Second card, second analog channel
885 47 = /dev/ml16pb-a15 Second card, 16th analog channel
886 48 = /dev/ml16pb-d Second card, digital lines
887 49 = /dev/ml16pb-c0 Second card, first counter/timer
888 50 = /dev/ml16pb-c1 Second card, second counter/timer
889 51 = /dev/ml16pb-c2 Second card, third counter/timer
897 41 char Yet Another Micro Monitor
898 0 = /dev/yamm Yet Another Micro Monitor
902 42 char Demo/sample use
904 42 block Demo/sample use
906 This number is intended for use in sample code, as
907 well as a general "example" device number. It
908 should never be used for a device driver that is being
909 distributed; either obtain an official number or use
910 the local/experimental range. The sudden addition or
911 removal of a driver with this number should not cause
912 ill effects to the system (bugs excepted.)
914 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
915 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
917 43 char isdn4linux virtual modem
918 0 = /dev/ttyI0 First virtual modem
920 63 = /dev/ttyI63 64th virtual modem
922 43 block Network block devices
923 0 = /dev/nb0 First network block device
924 1 = /dev/nb1 Second network block device
927 Network Block Device is somehow similar to loopback
928 devices: If you read from it, it sends packet across
929 network asking server for data. If you write to it, it
930 sends packet telling server to write. It could be used
931 to mounting filesystems over the net, swapping over
932 the net, implementing block device in userland etc.
934 44 char isdn4linux virtual modem - alternate devices
935 0 = /dev/cui0 Callout device for ttyI0
937 63 = /dev/cui63 Callout device for ttyI63
939 44 block Flash Translation Layer (FTL) filesystems
940 0 = /dev/ftla FTL on first Memory Technology Device
941 16 = /dev/ftlb FTL on second Memory Technology Device
942 32 = /dev/ftlc FTL on third Memory Technology Device
944 240 = /dev/ftlp FTL on 16th Memory Technology Device
946 Partitions are handled in the same way as for IDE
947 disks (see major number 3) except that the partition
948 limit is 15 rather than 63 per disk (same as SCSI.)
950 45 char isdn4linux ISDN BRI driver
951 0 = /dev/isdn0 First virtual B channel raw data
953 63 = /dev/isdn63 64th virtual B channel raw data
954 64 = /dev/isdnctrl0 First channel control/debug
956 127 = /dev/isdnctrl63 64th channel control/debug
958 128 = /dev/ippp0 First SyncPPP device
960 191 = /dev/ippp63 64th SyncPPP device
962 255 = /dev/isdninfo ISDN monitor interface
964 45 block Parallel port IDE disk devices
965 0 = /dev/pda First parallel port IDE disk
966 16 = /dev/pdb Second parallel port IDE disk
967 32 = /dev/pdc Third parallel port IDE disk
968 48 = /dev/pdd Fourth parallel port IDE disk
970 Partitions are handled in the same way as for IDE
971 disks (see major number 3) except that the partition
972 limit is 15 rather than 63 per disk.
974 46 char Comtrol Rocketport serial card
975 0 = /dev/ttyR0 First Rocketport port
976 1 = /dev/ttyR1 Second Rocketport port
978 46 block Parallel port ATAPI CD-ROM devices
979 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
980 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
981 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
982 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
984 47 char Comtrol Rocketport serial card - alternate devices
985 0 = /dev/cur0 Callout device for ttyR0
986 1 = /dev/cur1 Callout device for ttyR1
988 47 block Parallel port ATAPI disk devices
989 0 = /dev/pf0 First parallel port ATAPI disk
990 1 = /dev/pf1 Second parallel port ATAPI disk
991 2 = /dev/pf2 Third parallel port ATAPI disk
992 3 = /dev/pf3 Fourth parallel port ATAPI disk
994 This driver is intended for floppy disks and similar
995 devices and hence does not support partitioning.
997 48 char SDL RISCom serial card
998 0 = /dev/ttyL0 First RISCom port
999 1 = /dev/ttyL1 Second RISCom port
1001 48 block Mylex DAC960 PCI RAID controller; first controller
1002 0 = /dev/rd/c0d0 First disk, whole disk
1003 8 = /dev/rd/c0d1 Second disk, whole disk
1005 248 = /dev/rd/c0d31 32nd disk, whole disk
1008 0 = /dev/rd/c?d? Whole disk
1009 1 = /dev/rd/c?d?p1 First partition
1011 7 = /dev/rd/c?d?p7 Seventh partition
1013 49 char SDL RISCom serial card - alternate devices
1014 0 = /dev/cul0 Callout device for ttyL0
1015 1 = /dev/cul1 Callout device for ttyL1
1017 49 block Mylex DAC960 PCI RAID controller; second controller
1018 0 = /dev/rd/c1d0 First disk, whole disk
1019 8 = /dev/rd/c1d1 Second disk, whole disk
1021 248 = /dev/rd/c1d31 32nd disk, whole disk
1023 Partitions are handled as for major 48.
1025 50 char Reserved for GLINT
1027 50 block Mylex DAC960 PCI RAID controller; third controller
1028 0 = /dev/rd/c2d0 First disk, whole disk
1029 8 = /dev/rd/c2d1 Second disk, whole disk
1031 248 = /dev/rd/c2d31 32nd disk, whole disk
1033 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
1034 0 = /dev/bc0 First Baycom radio modem
1035 1 = /dev/bc1 Second Baycom radio modem
1037 51 block Mylex DAC960 PCI RAID controller; fourth controller
1038 0 = /dev/rd/c3d0 First disk, whole disk
1039 8 = /dev/rd/c3d1 Second disk, whole disk
1041 248 = /dev/rd/c3d31 32nd disk, whole disk
1043 Partitions are handled as for major 48.
1045 52 char Spellcaster DataComm/BRI ISDN card
1046 0 = /dev/dcbri0 First DataComm card
1047 1 = /dev/dcbri1 Second DataComm card
1048 2 = /dev/dcbri2 Third DataComm card
1049 3 = /dev/dcbri3 Fourth DataComm card
1051 52 block Mylex DAC960 PCI RAID controller; fifth controller
1052 0 = /dev/rd/c4d0 First disk, whole disk
1053 8 = /dev/rd/c4d1 Second disk, whole disk
1055 248 = /dev/rd/c4d31 32nd disk, whole disk
1057 Partitions are handled as for major 48.
1059 53 char BDM interface for remote debugging MC683xx microcontrollers
1060 0 = /dev/pd_bdm0 PD BDM interface on lp0
1061 1 = /dev/pd_bdm1 PD BDM interface on lp1
1062 2 = /dev/pd_bdm2 PD BDM interface on lp2
1063 4 = /dev/icd_bdm0 ICD BDM interface on lp0
1064 5 = /dev/icd_bdm1 ICD BDM interface on lp1
1065 6 = /dev/icd_bdm2 ICD BDM interface on lp2
1067 This device is used for the interfacing to the MC683xx
1068 microcontrollers via Background Debug Mode by use of a
1069 Parallel Port interface. PD is the Motorola Public
1070 Domain Interface and ICD is the commercial interface
1073 53 block Mylex DAC960 PCI RAID controller; sixth controller
1074 0 = /dev/rd/c5d0 First disk, whole disk
1075 8 = /dev/rd/c5d1 Second disk, whole disk
1077 248 = /dev/rd/c5d31 32nd disk, whole disk
1079 Partitions are handled as for major 48.
1081 54 char Electrocardiognosis Holter serial card
1082 0 = /dev/holter0 First Holter port
1083 1 = /dev/holter1 Second Holter port
1084 2 = /dev/holter2 Third Holter port
1086 A custom serial card used by Electrocardiognosis SRL
1087 <mseritan@ottonel.pub.ro> to transfer data from Holter
1088 24-hour heart monitoring equipment.
1090 54 block Mylex DAC960 PCI RAID controller; seventh controller
1091 0 = /dev/rd/c6d0 First disk, whole disk
1092 8 = /dev/rd/c6d1 Second disk, whole disk
1094 248 = /dev/rd/c6d31 32nd disk, whole disk
1096 Partitions are handled as for major 48.
1098 55 char DSP56001 digital signal processor
1099 0 = /dev/dsp56k First DSP56001
1101 55 block Mylex DAC960 PCI RAID controller; eighth controller
1102 0 = /dev/rd/c7d0 First disk, whole disk
1103 8 = /dev/rd/c7d1 Second disk, whole disk
1105 248 = /dev/rd/c7d31 32nd disk, whole disk
1107 Partitions are handled as for major 48.
1109 56 char Apple Desktop Bus
1110 0 = /dev/adb ADB bus control
1112 Additional devices will be added to this number, all
1113 starting with /dev/adb.
1115 56 block Fifth IDE hard disk/CD-ROM interface
1116 0 = /dev/hdi Master: whole disk (or CD-ROM)
1117 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1119 Partitions are handled the same way as for the first
1120 interface (see major number 3).
1122 57 char Hayes ESP serial card
1123 0 = /dev/ttyP0 First ESP port
1124 1 = /dev/ttyP1 Second ESP port
1127 57 block Sixth IDE hard disk/CD-ROM interface
1128 0 = /dev/hdk Master: whole disk (or CD-ROM)
1129 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1131 Partitions are handled the same way as for the first
1132 interface (see major number 3).
1134 58 char Hayes ESP serial card - alternate devices
1135 0 = /dev/cup0 Callout device for ttyP0
1136 1 = /dev/cup1 Callout device for ttyP1
1139 58 block Reserved for logical volume manager
1141 59 char sf firewall package
1142 0 = /dev/firewall Communication with sf kernel module
1144 59 block Generic PDA filesystem device
1145 0 = /dev/pda0 First PDA device
1146 1 = /dev/pda1 Second PDA device
1149 The pda devices are used to mount filesystems on
1150 remote pda's (basically slow handheld machines with
1151 proprietary OS's and limited memory and storage
1152 running small fs translation drivers) through serial /
1153 IRDA / parallel links.
1155 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1157 60-63 char LOCAL/EXPERIMENTAL USE
1159 60-63 block LOCAL/EXPERIMENTAL USE
1160 Allocated for local/experimental use. For devices not
1161 assigned official numbers, these ranges should be
1162 used in order to avoid conflicting with future assignments.
1164 64 char ENskip kernel encryption package
1165 0 = /dev/enskip Communication with ENskip kernel module
1167 64 block Scramdisk/DriveCrypt encrypted devices
1168 0 = /dev/scramdisk/master Master node for ioctls
1169 1 = /dev/scramdisk/1 First encrypted device
1170 2 = /dev/scramdisk/2 Second encrypted device
1172 255 = /dev/scramdisk/255 255th encrypted device
1174 The filename of the encrypted container and the passwords
1175 are sent via ioctls (using the sdmount tool) to the master
1176 node which then activates them via one of the
1177 /dev/scramdisk/x nodes for loop mounting (all handled
1178 through the sdmount tool).
1180 Requested by: andy@scramdisklinux.org
1182 65 char Sundance "plink" Transputer boards (obsolete, unused)
1183 0 = /dev/plink0 First plink device
1184 1 = /dev/plink1 Second plink device
1185 2 = /dev/plink2 Third plink device
1186 3 = /dev/plink3 Fourth plink device
1187 64 = /dev/rplink0 First plink device, raw
1188 65 = /dev/rplink1 Second plink device, raw
1189 66 = /dev/rplink2 Third plink device, raw
1190 67 = /dev/rplink3 Fourth plink device, raw
1191 128 = /dev/plink0d First plink device, debug
1192 129 = /dev/plink1d Second plink device, debug
1193 130 = /dev/plink2d Third plink device, debug
1194 131 = /dev/plink3d Fourth plink device, debug
1195 192 = /dev/rplink0d First plink device, raw, debug
1196 193 = /dev/rplink1d Second plink device, raw, debug
1197 194 = /dev/rplink2d Third plink device, raw, debug
1198 195 = /dev/rplink3d Fourth plink device, raw, debug
1200 This is a commercial driver; contact James Howes
1201 <jth@prosig.demon.co.uk> for information.
1203 65 block SCSI disk devices (16-31)
1204 0 = /dev/sdq 17th SCSI disk whole disk
1205 16 = /dev/sdr 18th SCSI disk whole disk
1206 32 = /dev/sds 19th SCSI disk whole disk
1208 240 = /dev/sdaf 32nd SCSI disk whole disk
1210 Partitions are handled in the same way as for IDE
1211 disks (see major number 3) except that the limit on
1214 66 char YARC PowerPC PCI coprocessor card
1215 0 = /dev/yppcpci0 First YARC card
1216 1 = /dev/yppcpci1 Second YARC card
1219 66 block SCSI disk devices (32-47)
1220 0 = /dev/sdag 33th SCSI disk whole disk
1221 16 = /dev/sdah 34th SCSI disk whole disk
1222 32 = /dev/sdai 35th SCSI disk whole disk
1224 240 = /dev/sdav 48nd SCSI disk whole disk
1226 Partitions are handled in the same way as for IDE
1227 disks (see major number 3) except that the limit on
1230 67 char Coda network file system
1231 0 = /dev/cfs0 Coda cache manager
1233 See http://www.coda.cs.cmu.edu for information about Coda.
1235 67 block SCSI disk devices (48-63)
1236 0 = /dev/sdaw 49th SCSI disk whole disk
1237 16 = /dev/sdax 50th SCSI disk whole disk
1238 32 = /dev/sday 51st SCSI disk whole disk
1240 240 = /dev/sdbl 64th SCSI disk whole disk
1242 Partitions are handled in the same way as for IDE
1243 disks (see major number 3) except that the limit on
1246 68 char CAPI 2.0 interface
1247 0 = /dev/capi20 Control device
1248 1 = /dev/capi20.00 First CAPI 2.0 application
1249 2 = /dev/capi20.01 Second CAPI 2.0 application
1251 20 = /dev/capi20.19 19th CAPI 2.0 application
1253 ISDN CAPI 2.0 driver for use with CAPI 2.0
1254 applications; currently supports the AVM B1 card.
1256 68 block SCSI disk devices (64-79)
1257 0 = /dev/sdbm 65th SCSI disk whole disk
1258 16 = /dev/sdbn 66th SCSI disk whole disk
1259 32 = /dev/sdbo 67th SCSI disk whole disk
1261 240 = /dev/sdcb 80th SCSI disk whole disk
1263 Partitions are handled in the same way as for IDE
1264 disks (see major number 3) except that the limit on
1267 69 char MA16 numeric accelerator card
1268 0 = /dev/ma16 Board memory access
1270 69 block SCSI disk devices (80-95)
1271 0 = /dev/sdcc 81st SCSI disk whole disk
1272 16 = /dev/sdcd 82nd SCSI disk whole disk
1273 32 = /dev/sdce 83th SCSI disk whole disk
1275 240 = /dev/sdcr 96th SCSI disk whole disk
1277 Partitions are handled in the same way as for IDE
1278 disks (see major number 3) except that the limit on
1281 70 char SpellCaster Protocol Services Interface
1282 0 = /dev/apscfg Configuration interface
1283 1 = /dev/apsauth Authentication interface
1284 2 = /dev/apslog Logging interface
1285 3 = /dev/apsdbg Debugging interface
1286 64 = /dev/apsisdn ISDN command interface
1287 65 = /dev/apsasync Async command interface
1288 128 = /dev/apsmon Monitor interface
1290 70 block SCSI disk devices (96-111)
1291 0 = /dev/sdcs 97th SCSI disk whole disk
1292 16 = /dev/sdct 98th SCSI disk whole disk
1293 32 = /dev/sdcu 99th SCSI disk whole disk
1295 240 = /dev/sddh 112nd SCSI disk whole disk
1297 Partitions are handled in the same way as for IDE
1298 disks (see major number 3) except that the limit on
1301 71 char Computone IntelliPort II serial card
1302 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1303 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1305 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1306 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1307 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1309 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1310 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1311 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1313 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1314 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1315 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1317 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1319 71 block SCSI disk devices (112-127)
1320 0 = /dev/sddi 113th SCSI disk whole disk
1321 16 = /dev/sddj 114th SCSI disk whole disk
1322 32 = /dev/sddk 115th SCSI disk whole disk
1324 240 = /dev/sddx 128th SCSI disk whole disk
1326 Partitions are handled in the same way as for IDE
1327 disks (see major number 3) except that the limit on
1330 72 char Computone IntelliPort II serial card - alternate devices
1331 0 = /dev/cuf0 Callout device for ttyF0
1332 1 = /dev/cuf1 Callout device for ttyF1
1334 63 = /dev/cuf63 Callout device for ttyF63
1335 64 = /dev/cuf64 Callout device for ttyF64
1336 65 = /dev/cuf65 Callout device for ttyF65
1338 127 = /dev/cuf127 Callout device for ttyF127
1339 128 = /dev/cuf128 Callout device for ttyF128
1340 129 = /dev/cuf129 Callout device for ttyF129
1342 191 = /dev/cuf191 Callout device for ttyF191
1343 192 = /dev/cuf192 Callout device for ttyF192
1344 193 = /dev/cuf193 Callout device for ttyF193
1346 255 = /dev/cuf255 Callout device for ttyF255
1348 72 block Compaq Intelligent Drive Array, first controller
1349 0 = /dev/ida/c0d0 First logical drive whole disk
1350 16 = /dev/ida/c0d1 Second logical drive whole disk
1352 240 = /dev/ida/c0d15 16th logical drive whole disk
1354 Partitions are handled the same way as for Mylex
1355 DAC960 (see major number 48) except that the limit on
1358 73 char Computone IntelliPort II serial card - control devices
1359 0 = /dev/ip2ipl0 Loadware device for board 0
1360 1 = /dev/ip2stat0 Status device for board 0
1361 4 = /dev/ip2ipl1 Loadware device for board 1
1362 5 = /dev/ip2stat1 Status device for board 1
1363 8 = /dev/ip2ipl2 Loadware device for board 2
1364 9 = /dev/ip2stat2 Status device for board 2
1365 12 = /dev/ip2ipl3 Loadware device for board 3
1366 13 = /dev/ip2stat3 Status device for board 3
1368 73 block Compaq Intelligent Drive Array, second controller
1369 0 = /dev/ida/c1d0 First logical drive whole disk
1370 16 = /dev/ida/c1d1 Second logical drive whole disk
1372 240 = /dev/ida/c1d15 16th logical drive whole disk
1374 Partitions are handled the same way as for Mylex
1375 DAC960 (see major number 48) except that the limit on
1379 0 = /dev/SCI/0 SCI device 0
1380 1 = /dev/SCI/1 SCI device 1
1383 Currently for Dolphin Interconnect Solutions' PCI-SCI
1386 74 block Compaq Intelligent Drive Array, third controller
1387 0 = /dev/ida/c2d0 First logical drive whole disk
1388 16 = /dev/ida/c2d1 Second logical drive whole disk
1390 240 = /dev/ida/c2d15 16th logical drive whole disk
1392 Partitions are handled the same way as for Mylex
1393 DAC960 (see major number 48) except that the limit on
1396 75 char Specialix IO8+ serial card
1397 0 = /dev/ttyW0 First IO8+ port, first card
1398 1 = /dev/ttyW1 Second IO8+ port, first card
1400 8 = /dev/ttyW8 First IO8+ port, second card
1403 75 block Compaq Intelligent Drive Array, fourth controller
1404 0 = /dev/ida/c3d0 First logical drive whole disk
1405 16 = /dev/ida/c3d1 Second logical drive whole disk
1407 240 = /dev/ida/c3d15 16th logical drive whole disk
1409 Partitions are handled the same way as for Mylex
1410 DAC960 (see major number 48) except that the limit on
1413 76 char Specialix IO8+ serial card - alternate devices
1414 0 = /dev/cuw0 Callout device for ttyW0
1415 1 = /dev/cuw1 Callout device for ttyW1
1417 8 = /dev/cuw8 Callout device for ttyW8
1420 76 block Compaq Intelligent Drive Array, fifth controller
1421 0 = /dev/ida/c4d0 First logical drive whole disk
1422 16 = /dev/ida/c4d1 Second logical drive whole disk
1424 240 = /dev/ida/c4d15 16th logical drive whole disk
1426 Partitions are handled the same way as for Mylex
1427 DAC960 (see major number 48) except that the limit on
1431 77 char ComScire Quantum Noise Generator
1432 0 = /dev/qng ComScire Quantum Noise Generator
1434 77 block Compaq Intelligent Drive Array, sixth controller
1435 0 = /dev/ida/c5d0 First logical drive whole disk
1436 16 = /dev/ida/c5d1 Second logical drive whole disk
1438 240 = /dev/ida/c5d15 16th logical drive whole disk
1440 Partitions are handled the same way as for Mylex
1441 DAC960 (see major number 48) except that the limit on
1444 78 char PAM Software's multimodem boards
1445 0 = /dev/ttyM0 First PAM modem
1446 1 = /dev/ttyM1 Second PAM modem
1449 78 block Compaq Intelligent Drive Array, seventh controller
1450 0 = /dev/ida/c6d0 First logical drive whole disk
1451 16 = /dev/ida/c6d1 Second logical drive whole disk
1453 240 = /dev/ida/c6d15 16th logical drive whole disk
1455 Partitions are handled the same way as for Mylex
1456 DAC960 (see major number 48) except that the limit on
1459 79 char PAM Software's multimodem boards - alternate devices
1460 0 = /dev/cum0 Callout device for ttyM0
1461 1 = /dev/cum1 Callout device for ttyM1
1464 79 block Compaq Intelligent Drive Array, eighth controller
1465 0 = /dev/ida/c7d0 First logical drive whole disk
1466 16 = /dev/ida/c7d1 Second logical drive whole disk
1468 240 = /dev/ida/c715 16th logical drive whole disk
1470 Partitions are handled the same way as for Mylex
1471 DAC960 (see major number 48) except that the limit on
1474 80 char Photometrics AT200 CCD camera
1475 0 = /dev/at200 Photometrics AT200 CCD camera
1477 80 block I2O hard disk
1478 0 = /dev/i2o/hda First I2O hard disk, whole disk
1479 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1481 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1483 Partitions are handled in the same way as for IDE
1484 disks (see major number 3) except that the limit on
1488 0 = /dev/video0 Video capture/overlay device
1490 63 = /dev/video63 Video capture/overlay device
1491 64 = /dev/radio0 Radio device
1493 127 = /dev/radio63 Radio device
1494 128 = /dev/swradio0 Software Defined Radio device
1496 191 = /dev/swradio63 Software Defined Radio device
1497 224 = /dev/vbi0 Vertical blank interrupt
1499 255 = /dev/vbi31 Vertical blank interrupt
1501 Minor numbers are allocated dynamically unless
1502 CONFIG_VIDEO_FIXED_MINOR_RANGES (default n)
1503 configuration option is set.
1505 81 block I2O hard disk
1506 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1507 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1509 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1511 Partitions are handled in the same way as for IDE
1512 disks (see major number 3) except that the limit on
1515 82 char WiNRADiO communications receiver card
1516 0 = /dev/winradio0 First WiNRADiO card
1517 1 = /dev/winradio1 Second WiNRADiO card
1520 The driver and documentation may be obtained from
1521 http://www.winradio.com/
1523 82 block I2O hard disk
1524 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1525 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1527 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1529 Partitions are handled in the same way as for IDE
1530 disks (see major number 3) except that the limit on
1533 83 char Matrox mga_vid video driver
1534 0 = /dev/mga_vid0 1st video card
1535 1 = /dev/mga_vid1 2nd video card
1536 2 = /dev/mga_vid2 3rd video card
1538 15 = /dev/mga_vid15 16th video card
1540 83 block I2O hard disk
1541 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1542 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1544 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk
1546 Partitions are handled in the same way as for IDE
1547 disks (see major number 3) except that the limit on
1550 84 char Ikon 1011[57] Versatec Greensheet Interface
1551 0 = /dev/ihcp0 First Greensheet port
1552 1 = /dev/ihcp1 Second Greensheet port
1554 84 block I2O hard disk
1555 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1556 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1558 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1560 Partitions are handled in the same way as for IDE
1561 disks (see major number 3) except that the limit on
1564 85 char Linux/SGI shared memory input queue
1565 0 = /dev/shmiq Master shared input queue
1566 1 = /dev/qcntl0 First device pushed
1567 2 = /dev/qcntl1 Second device pushed
1570 85 block I2O hard disk
1571 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1572 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1574 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk
1576 Partitions are handled in the same way as for IDE
1577 disks (see major number 3) except that the limit on
1580 86 char SCSI media changer
1581 0 = /dev/sch0 First SCSI media changer
1582 1 = /dev/sch1 Second SCSI media changer
1585 86 block I2O hard disk
1586 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1587 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1589 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1591 Partitions are handled in the same way as for IDE
1592 disks (see major number 3) except that the limit on
1595 87 char Sony Control-A1 stereo control bus
1596 0 = /dev/controla0 First device on chain
1597 1 = /dev/controla1 Second device on chain
1600 87 block I2O hard disk
1601 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1602 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1604 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1606 Partitions are handled in the same way as for IDE
1607 disks (see major number 3) except that the limit on
1610 88 char COMX synchronous serial card
1611 0 = /dev/comx0 COMX channel 0
1612 1 = /dev/comx1 COMX channel 1
1615 88 block Seventh IDE hard disk/CD-ROM interface
1616 0 = /dev/hdm Master: whole disk (or CD-ROM)
1617 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1619 Partitions are handled the same way as for the first
1620 interface (see major number 3).
1622 89 char I2C bus interface
1623 0 = /dev/i2c-0 First I2C adapter
1624 1 = /dev/i2c-1 Second I2C adapter
1627 89 block Eighth IDE hard disk/CD-ROM interface
1628 0 = /dev/hdo Master: whole disk (or CD-ROM)
1629 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1631 Partitions are handled the same way as for the first
1632 interface (see major number 3).
1634 90 char Memory Technology Device (RAM, ROM, Flash)
1635 0 = /dev/mtd0 First MTD (rw)
1636 1 = /dev/mtdr0 First MTD (ro)
1638 30 = /dev/mtd15 16th MTD (rw)
1639 31 = /dev/mtdr15 16th MTD (ro)
1641 90 block Ninth IDE hard disk/CD-ROM interface
1642 0 = /dev/hdq Master: whole disk (or CD-ROM)
1643 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1645 Partitions are handled the same way as for the first
1646 interface (see major number 3).
1648 91 char CAN-Bus devices
1649 0 = /dev/can0 First CAN-Bus controller
1650 1 = /dev/can1 Second CAN-Bus controller
1653 91 block Tenth IDE hard disk/CD-ROM interface
1654 0 = /dev/hds Master: whole disk (or CD-ROM)
1655 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1657 Partitions are handled the same way as for the first
1658 interface (see major number 3).
1660 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1662 92 block PPDD encrypted disk driver
1663 0 = /dev/ppdd0 First encrypted disk
1664 1 = /dev/ppdd1 Second encrypted disk
1667 Partitions are handled in the same way as for IDE
1668 disks (see major number 3) except that the limit on
1673 93 block NAND Flash Translation Layer filesystem
1674 0 = /dev/nftla First NFTL layer
1675 16 = /dev/nftlb Second NFTL layer
1677 240 = /dev/nftlp 16th NTFL layer
1681 94 block IBM S/390 DASD block storage
1682 0 = /dev/dasda First DASD device, major
1683 1 = /dev/dasda1 First DASD device, block 1
1684 2 = /dev/dasda2 First DASD device, block 2
1685 3 = /dev/dasda3 First DASD device, block 3
1686 4 = /dev/dasdb Second DASD device, major
1687 5 = /dev/dasdb1 Second DASD device, block 1
1688 6 = /dev/dasdb2 Second DASD device, block 2
1689 7 = /dev/dasdb3 Second DASD device, block 3
1693 0 = /dev/ipl Filter control device/log file
1694 1 = /dev/ipnat NAT control device/log file
1695 2 = /dev/ipstate State information log file
1696 3 = /dev/ipauth Authentication control device/log file
1699 96 char Parallel port ATAPI tape devices
1700 0 = /dev/pt0 First parallel port ATAPI tape
1701 1 = /dev/pt1 Second parallel port ATAPI tape
1703 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1704 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1707 96 block Inverse NAND Flash Translation Layer
1708 0 = /dev/inftla First INFTL layer
1709 16 = /dev/inftlb Second INFTL layer
1711 240 = /dev/inftlp 16th INTFL layer
1713 97 char Parallel port generic ATAPI interface
1714 0 = /dev/pg0 First parallel port ATAPI device
1715 1 = /dev/pg1 Second parallel port ATAPI device
1716 2 = /dev/pg2 Third parallel port ATAPI device
1717 3 = /dev/pg3 Fourth parallel port ATAPI device
1719 These devices support the same API as the generic SCSI
1722 98 char Control and Measurement Device (comedi)
1723 0 = /dev/comedi0 First comedi device
1724 1 = /dev/comedi1 Second comedi device
1727 See http://stm.lbl.gov/comedi.
1729 98 block User-mode virtual block device
1730 0 = /dev/ubda First user-mode block device
1731 16 = /dev/udbb Second user-mode block device
1734 Partitions are handled in the same way as for IDE
1735 disks (see major number 3) except that the limit on
1738 This device is used by the user-mode virtual kernel port.
1740 99 char Raw parallel ports
1741 0 = /dev/parport0 First parallel port
1742 1 = /dev/parport1 Second parallel port
1745 99 block JavaStation flash disk
1746 0 = /dev/jsfd JavaStation flash disk
1748 100 char Telephony for Linux
1749 0 = /dev/phone0 First telephony device
1750 1 = /dev/phone1 Second telephony device
1753 101 char Motorola DSP 56xxx board
1754 0 = /dev/mdspstat Status information
1755 1 = /dev/mdsp1 First DSP board I/O controls
1757 16 = /dev/mdsp16 16th DSP board I/O controls
1759 101 block AMI HyperDisk RAID controller
1760 0 = /dev/amiraid/ar0 First array whole disk
1761 16 = /dev/amiraid/ar1 Second array whole disk
1763 240 = /dev/amiraid/ar15 16th array whole disk
1765 For each device, partitions are added as:
1766 0 = /dev/amiraid/ar? Whole disk
1767 1 = /dev/amiraid/ar?p1 First partition
1768 2 = /dev/amiraid/ar?p2 Second partition
1770 15 = /dev/amiraid/ar?p15 15th partition
1774 102 block Compressed block device
1775 0 = /dev/cbd/a First compressed block device, whole device
1776 16 = /dev/cbd/b Second compressed block device, whole device
1778 240 = /dev/cbd/p 16th compressed block device, whole device
1780 Partitions are handled in the same way as for IDE
1781 disks (see major number 3) except that the limit on
1784 103 char Arla network file system
1785 0 = /dev/nnpfs0 First NNPFS device
1786 1 = /dev/nnpfs1 Second NNPFS device
1788 Arla is a free clone of the Andrew File System, AFS.
1789 The NNPFS device gives user mode filesystem
1790 implementations a kernel presence for caching and easy
1791 mounting. For more information about the project,
1792 write to <arla-drinkers@stacken.kth.se> or see
1793 http://www.stacken.kth.se/project/arla/
1795 103 block Audit device
1796 0 = /dev/audit Audit device
1798 104 char Flash BIOS support
1800 104 block Compaq Next Generation Drive Array, first controller
1801 0 = /dev/cciss/c0d0 First logical drive, whole disk
1802 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1804 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1806 Partitions are handled the same way as for Mylex
1807 DAC960 (see major number 48) except that the limit on
1810 105 char Comtrol VS-1000 serial controller
1811 0 = /dev/ttyV0 First VS-1000 port
1812 1 = /dev/ttyV1 Second VS-1000 port
1815 105 block Compaq Next Generation Drive Array, second controller
1816 0 = /dev/cciss/c1d0 First logical drive, whole disk
1817 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1819 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1821 Partitions are handled the same way as for Mylex
1822 DAC960 (see major number 48) except that the limit on
1825 106 char Comtrol VS-1000 serial controller - alternate devices
1826 0 = /dev/cuv0 First VS-1000 port
1827 1 = /dev/cuv1 Second VS-1000 port
1830 106 block Compaq Next Generation Drive Array, third controller
1831 0 = /dev/cciss/c2d0 First logical drive, whole disk
1832 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1834 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1836 Partitions are handled the same way as for Mylex
1837 DAC960 (see major number 48) except that the limit on
1840 107 char 3Dfx Voodoo Graphics device
1841 0 = /dev/3dfx Primary 3Dfx graphics device
1843 107 block Compaq Next Generation Drive Array, fourth controller
1844 0 = /dev/cciss/c3d0 First logical drive, whole disk
1845 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1847 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1849 Partitions are handled the same way as for Mylex
1850 DAC960 (see major number 48) except that the limit on
1853 108 char Device independent PPP interface
1854 0 = /dev/ppp Device independent PPP interface
1856 108 block Compaq Next Generation Drive Array, fifth controller
1857 0 = /dev/cciss/c4d0 First logical drive, whole disk
1858 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1860 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1862 Partitions are handled the same way as for Mylex
1863 DAC960 (see major number 48) except that the limit on
1866 109 char Reserved for logical volume manager
1868 109 block Compaq Next Generation Drive Array, sixth controller
1869 0 = /dev/cciss/c5d0 First logical drive, whole disk
1870 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1872 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1874 Partitions are handled the same way as for Mylex
1875 DAC960 (see major number 48) except that the limit on
1878 110 char miroMEDIA Surround board
1879 0 = /dev/srnd0 First miroMEDIA Surround board
1880 1 = /dev/srnd1 Second miroMEDIA Surround board
1883 110 block Compaq Next Generation Drive Array, seventh controller
1884 0 = /dev/cciss/c6d0 First logical drive, whole disk
1885 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1887 240 = /dev/cciss/c6d15 16th logical drive, whole disk
1889 Partitions are handled the same way as for Mylex
1890 DAC960 (see major number 48) except that the limit on
1895 111 block Compaq Next Generation Drive Array, eighth controller
1896 0 = /dev/cciss/c7d0 First logical drive, whole disk
1897 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1899 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1901 Partitions are handled the same way as for Mylex
1902 DAC960 (see major number 48) except that the limit on
1905 112 char ISI serial card
1906 0 = /dev/ttyM0 First ISI port
1907 1 = /dev/ttyM1 Second ISI port
1910 There is currently a device-naming conflict between
1911 these and PAM multimodems (major 78).
1913 112 block IBM iSeries virtual disk
1914 0 = /dev/iseries/vda First virtual disk, whole disk
1915 8 = /dev/iseries/vdb Second virtual disk, whole disk
1917 200 = /dev/iseries/vdz 26th virtual disk, whole disk
1918 208 = /dev/iseries/vdaa 27th virtual disk, whole disk
1920 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk
1922 Partitions are handled in the same way as for IDE
1923 disks (see major number 3) except that the limit on
1926 113 char ISI serial card - alternate devices
1927 0 = /dev/cum0 Callout device for ttyM0
1928 1 = /dev/cum1 Callout device for ttyM1
1931 113 block IBM iSeries virtual CD-ROM
1932 0 = /dev/iseries/vcda First virtual CD-ROM
1933 1 = /dev/iseries/vcdb Second virtual CD-ROM
1936 114 char Picture Elements ISE board
1937 0 = /dev/ise0 First ISE board
1938 1 = /dev/ise1 Second ISE board
1940 128 = /dev/isex0 Control node for first ISE board
1941 129 = /dev/isex1 Control node for second ISE board
1944 The ISE board is an embedded computer, optimized for
1945 image processing. The /dev/iseN nodes are the general
1946 I/O access to the board, the /dev/isex0 nodes command
1947 nodes used to control the board.
1949 114 block IDE BIOS powered software RAID interfaces such as the
1953 1 = /dev/ataraid/d0p1
1954 2 = /dev/ataraid/d0p2
1956 16 = /dev/ataraid/d1
1957 17 = /dev/ataraid/d1p1
1958 18 = /dev/ataraid/d1p2
1960 255 = /dev/ataraid/d15p15
1962 Partitions are handled in the same way as for IDE
1963 disks (see major number 3) except that the limit on
1966 115 char TI link cable devices (115 was formerly the console driver speaker)
1967 0 = /dev/tipar0 Parallel cable on first parallel port
1969 7 = /dev/tipar7 Parallel cable on seventh parallel port
1971 8 = /dev/tiser0 Serial cable on first serial port
1973 15 = /dev/tiser7 Serial cable on seventh serial port
1975 16 = /dev/tiusb0 First USB cable
1977 47 = /dev/tiusb31 32nd USB cable
1979 115 block NetWare (NWFS) Devices (0-255)
1981 The NWFS (NetWare) devices are used to present a
1982 collection of NetWare Mirror Groups or NetWare
1983 Partitions as a logical storage segment for
1984 use in mounting NetWare volumes. A maximum of
1985 256 NetWare volumes can be supported in a single
1988 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
1990 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
1991 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
1992 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
1994 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
1996 116 char Advanced Linux Sound Driver (ALSA)
1998 116 block MicroMemory battery backed RAM adapter (NVRAM)
1999 Supports 16 boards, 15 partitions each.
2000 Requested by neilb at cse.unsw.edu.au.
2002 0 = /dev/umem/d0 Whole of first board
2003 1 = /dev/umem/d0p1 First partition of first board
2004 2 = /dev/umem/d0p2 Second partition of first board
2005 15 = /dev/umem/d0p15 15th partition of first board
2007 16 = /dev/umem/d1 Whole of second board
2008 17 = /dev/umem/d1p1 First partition of second board
2010 255= /dev/umem/d15p15 15th partition of 16th board.
2012 117 char COSA/SRP synchronous serial card
2013 0 = /dev/cosa0c0 1st board, 1st channel
2014 1 = /dev/cosa0c1 1st board, 2nd channel
2016 16 = /dev/cosa1c0 2nd board, 1st channel
2017 17 = /dev/cosa1c1 2nd board, 2nd channel
2020 117 block Enterprise Volume Management System (EVMS)
2022 The EVMS driver uses a layered, plug-in model to provide
2023 unparalleled flexibility and extensibility in managing
2024 storage. This allows for easy expansion or customization
2025 of various levels of volume management. Requested by
2026 Mark Peloquin (peloquin at us.ibm.com).
2028 Note: EVMS populates and manages all the devnodes in
2031 http://sf.net/projects/evms
2033 0 = /dev/evms/block_device EVMS block device
2034 1 = /dev/evms/legacyname1 First EVMS legacy device
2035 2 = /dev/evms/legacyname2 Second EVMS legacy device
2037 Both ranges can grow (down or up) until they meet.
2039 254 = /dev/evms/EVMSname2 Second EVMS native device
2040 255 = /dev/evms/EVMSname1 First EVMS native device
2042 Note: legacyname(s) are derived from the normal legacy
2043 device names. For example, /dev/hda5 would become
2046 118 char IBM Cryptographic Accelerator
2047 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators
2048 1 = /dev/ica0 IBMCA Device 0
2049 2 = /dev/ica1 IBMCA Device 1
2052 119 char VMware virtual network control
2053 0 = /dev/vnet0 1st virtual network
2054 1 = /dev/vnet1 2nd virtual network
2057 120-127 char LOCAL/EXPERIMENTAL USE
2059 120-127 block LOCAL/EXPERIMENTAL USE
2060 Allocated for local/experimental use. For devices not
2061 assigned official numbers, these ranges should be
2062 used in order to avoid conflicting with future assignments.
2064 128-135 char Unix98 PTY masters
2066 These devices should not have corresponding device
2067 nodes; instead they should be accessed through the
2068 /dev/ptmx cloning interface.
2070 128 block SCSI disk devices (128-143)
2071 0 = /dev/sddy 129th SCSI disk whole disk
2072 16 = /dev/sddz 130th SCSI disk whole disk
2073 32 = /dev/sdea 131th SCSI disk whole disk
2075 240 = /dev/sden 144th SCSI disk whole disk
2077 Partitions are handled in the same way as for IDE
2078 disks (see major number 3) except that the limit on
2081 129 block SCSI disk devices (144-159)
2082 0 = /dev/sdeo 145th SCSI disk whole disk
2083 16 = /dev/sdep 146th SCSI disk whole disk
2084 32 = /dev/sdeq 147th SCSI disk whole disk
2086 240 = /dev/sdfd 160th SCSI disk whole disk
2088 Partitions are handled in the same way as for IDE
2089 disks (see major number 3) except that the limit on
2092 130 char (Misc devices)
2094 130 block SCSI disk devices (160-175)
2095 0 = /dev/sdfe 161st SCSI disk whole disk
2096 16 = /dev/sdff 162nd SCSI disk whole disk
2097 32 = /dev/sdfg 163rd SCSI disk whole disk
2099 240 = /dev/sdft 176th SCSI disk whole disk
2101 Partitions are handled in the same way as for IDE
2102 disks (see major number 3) except that the limit on
2105 131 block SCSI disk devices (176-191)
2106 0 = /dev/sdfu 177th SCSI disk whole disk
2107 16 = /dev/sdfv 178th SCSI disk whole disk
2108 32 = /dev/sdfw 179th SCSI disk whole disk
2110 240 = /dev/sdgj 192nd SCSI disk whole disk
2112 Partitions are handled in the same way as for IDE
2113 disks (see major number 3) except that the limit on
2116 132 block SCSI disk devices (192-207)
2117 0 = /dev/sdgk 193rd SCSI disk whole disk
2118 16 = /dev/sdgl 194th SCSI disk whole disk
2119 32 = /dev/sdgm 195th SCSI disk whole disk
2121 240 = /dev/sdgz 208th SCSI disk whole disk
2123 Partitions are handled in the same way as for IDE
2124 disks (see major number 3) except that the limit on
2127 133 block SCSI disk devices (208-223)
2128 0 = /dev/sdha 209th SCSI disk whole disk
2129 16 = /dev/sdhb 210th SCSI disk whole disk
2130 32 = /dev/sdhc 211th SCSI disk whole disk
2132 240 = /dev/sdhp 224th SCSI disk whole disk
2134 Partitions are handled in the same way as for IDE
2135 disks (see major number 3) except that the limit on
2138 134 block SCSI disk devices (224-239)
2139 0 = /dev/sdhq 225th SCSI disk whole disk
2140 16 = /dev/sdhr 226th SCSI disk whole disk
2141 32 = /dev/sdhs 227th SCSI disk whole disk
2143 240 = /dev/sdif 240th SCSI disk whole disk
2145 Partitions are handled in the same way as for IDE
2146 disks (see major number 3) except that the limit on
2149 135 block SCSI disk devices (240-255)
2150 0 = /dev/sdig 241st SCSI disk whole disk
2151 16 = /dev/sdih 242nd SCSI disk whole disk
2152 32 = /dev/sdih 243rd SCSI disk whole disk
2154 240 = /dev/sdiv 256th SCSI disk whole disk
2156 Partitions are handled in the same way as for IDE
2157 disks (see major number 3) except that the limit on
2160 136-143 char Unix98 PTY slaves
2161 0 = /dev/pts/0 First Unix98 pseudo-TTY
2162 1 = /dev/pts/1 Second Unix98 pseudo-TTY
2165 These device nodes are automatically generated with
2166 the proper permissions and modes by mounting the
2167 devpts filesystem onto /dev/pts with the appropriate
2168 mount options (distribution dependent, however, on
2169 *most* distributions the appropriate options are
2170 "mode=0620,gid=<gid of the "tty" group>".)
2172 136 block Mylex DAC960 PCI RAID controller; ninth controller
2173 0 = /dev/rd/c8d0 First disk, whole disk
2174 8 = /dev/rd/c8d1 Second disk, whole disk
2176 248 = /dev/rd/c8d31 32nd disk, whole disk
2178 Partitions are handled as for major 48.
2180 137 block Mylex DAC960 PCI RAID controller; tenth controller
2181 0 = /dev/rd/c9d0 First disk, whole disk
2182 8 = /dev/rd/c9d1 Second disk, whole disk
2184 248 = /dev/rd/c9d31 32nd disk, whole disk
2186 Partitions are handled as for major 48.
2188 138 block Mylex DAC960 PCI RAID controller; eleventh controller
2189 0 = /dev/rd/c10d0 First disk, whole disk
2190 8 = /dev/rd/c10d1 Second disk, whole disk
2192 248 = /dev/rd/c10d31 32nd disk, whole disk
2194 Partitions are handled as for major 48.
2196 139 block Mylex DAC960 PCI RAID controller; twelfth controller
2197 0 = /dev/rd/c11d0 First disk, whole disk
2198 8 = /dev/rd/c11d1 Second disk, whole disk
2200 248 = /dev/rd/c11d31 32nd disk, whole disk
2202 Partitions are handled as for major 48.
2204 140 block Mylex DAC960 PCI RAID controller; thirteenth controller
2205 0 = /dev/rd/c12d0 First disk, whole disk
2206 8 = /dev/rd/c12d1 Second disk, whole disk
2208 248 = /dev/rd/c12d31 32nd disk, whole disk
2210 Partitions are handled as for major 48.
2212 141 block Mylex DAC960 PCI RAID controller; fourteenth controller
2213 0 = /dev/rd/c13d0 First disk, whole disk
2214 8 = /dev/rd/c13d1 Second disk, whole disk
2216 248 = /dev/rd/c13d31 32nd disk, whole disk
2218 Partitions are handled as for major 48.
2220 142 block Mylex DAC960 PCI RAID controller; fifteenth controller
2221 0 = /dev/rd/c14d0 First disk, whole disk
2222 8 = /dev/rd/c14d1 Second disk, whole disk
2224 248 = /dev/rd/c14d31 32nd disk, whole disk
2226 Partitions are handled as for major 48.
2228 143 block Mylex DAC960 PCI RAID controller; sixteenth controller
2229 0 = /dev/rd/c15d0 First disk, whole disk
2230 8 = /dev/rd/c15d1 Second disk, whole disk
2232 248 = /dev/rd/c15d31 32nd disk, whole disk
2234 Partitions are handled as for major 48.
2236 144 char Encapsulated PPP
2237 0 = /dev/pppox0 First PPP over Ethernet
2239 63 = /dev/pppox63 64th PPP over Ethernet
2241 This is primarily used for ADSL.
2243 The SST 5136-DN DeviceNet interface driver has been
2244 relocated to major 183 due to an unfortunate conflict.
2246 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
2247 0 = mounted device 256
2248 255 = mounted device 511
2250 145 char SAM9407-based soundcard
2252 1 = /dev/sam0_sequencer
2253 2 = /dev/sam0_midi00
2256 6 = /dev/sam0_sndstat
2257 18 = /dev/sam0_midi01
2258 34 = /dev/sam0_midi02
2259 50 = /dev/sam0_midi03
2260 64 = /dev/sam1_mixer
2262 128 = /dev/sam2_mixer
2264 192 = /dev/sam3_mixer
2267 Device functions match OSS, but offer a number of
2268 addons, which are sam9407 specific. OSS can be
2269 operated simultaneously, taking care of the codec.
2271 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
2272 0 = mounted device 512
2273 255 = mounted device 767
2275 146 char SYSTRAM SCRAMNet mirrored-memory network
2276 0 = /dev/scramnet0 First SCRAMNet device
2277 1 = /dev/scramnet1 Second SCRAMNet device
2280 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
2281 0 = mounted device 768
2282 255 = mounted device 1023
2284 147 char Aureal Semiconductor Vortex Audio device
2285 0 = /dev/aureal0 First Aureal Vortex
2286 1 = /dev/aureal1 Second Aureal Vortex
2289 147 block Distributed Replicated Block Device (DRBD)
2290 0 = /dev/drbd0 First DRBD device
2291 1 = /dev/drbd1 Second DRBD device
2294 148 char Technology Concepts serial card
2295 0 = /dev/ttyT0 First TCL port
2296 1 = /dev/ttyT1 Second TCL port
2299 149 char Technology Concepts serial card - alternate devices
2300 0 = /dev/cut0 Callout device for ttyT0
2301 1 = /dev/cut0 Callout device for ttyT1
2304 150 char Real-Time Linux FIFOs
2305 0 = /dev/rtf0 First RTLinux FIFO
2306 1 = /dev/rtf1 Second RTLinux FIFO
2309 151 char DPT I2O SmartRaid V controller
2310 0 = /dev/dpti0 First DPT I2O adapter
2311 1 = /dev/dpti1 Second DPT I2O adapter
2314 152 char EtherDrive Control Device
2315 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive
2316 1 = /dev/etherd/err Monitor errors
2317 2 = /dev/etherd/raw Raw AoE packet monitor
2319 152 block EtherDrive Block Devices
2320 0 = /dev/etherd/0 EtherDrive 0
2322 255 = /dev/etherd/255 EtherDrive 255
2324 153 char SPI Bus Interface (sometimes referred to as MicroWire)
2325 0 = /dev/spi0 First SPI device on the bus
2326 1 = /dev/spi1 Second SPI device on the bus
2328 15 = /dev/spi15 Sixteenth SPI device on the bus
2330 153 block Enhanced Metadisk RAID (EMD) storage units
2331 0 = /dev/emd/0 First unit
2332 1 = /dev/emd/0p1 Partition 1 on First unit
2333 2 = /dev/emd/0p2 Partition 2 on First unit
2335 15 = /dev/emd/0p15 Partition 15 on First unit
2337 16 = /dev/emd/1 Second unit
2338 32 = /dev/emd/2 Third unit
2340 240 = /dev/emd/15 Sixteenth unit
2342 Partitions are handled in the same way as for IDE
2343 disks (see major number 3) except that the limit on
2346 154 char Specialix RIO serial card
2347 0 = /dev/ttySR0 First RIO port
2349 255 = /dev/ttySR255 256th RIO port
2351 155 char Specialix RIO serial card - alternate devices
2352 0 = /dev/cusr0 Callout device for ttySR0
2354 255 = /dev/cusr255 Callout device for ttySR255
2356 156 char Specialix RIO serial card
2357 0 = /dev/ttySR256 257th RIO port
2359 255 = /dev/ttySR511 512th RIO port
2361 157 char Specialix RIO serial card - alternate devices
2362 0 = /dev/cusr256 Callout device for ttySR256
2364 255 = /dev/cusr511 Callout device for ttySR511
2366 158 char Dialogic GammaLink fax driver
2367 0 = /dev/gfax0 GammaLink channel 0
2368 1 = /dev/gfax1 GammaLink channel 1
2375 160 char General Purpose Instrument Bus (GPIB)
2376 0 = /dev/gpib0 First GPIB bus
2377 1 = /dev/gpib1 Second GPIB bus
2380 160 block Carmel 8-port SATA Disks on First Controller
2381 0 = /dev/carmel/0 SATA disk 0 whole disk
2382 1 = /dev/carmel/0p1 SATA disk 0 partition 1
2384 31 = /dev/carmel/0p31 SATA disk 0 partition 31
2386 32 = /dev/carmel/1 SATA disk 1 whole disk
2387 64 = /dev/carmel/2 SATA disk 2 whole disk
2389 224 = /dev/carmel/7 SATA disk 7 whole disk
2391 Partitions are handled in the same way as for IDE
2392 disks (see major number 3) except that the limit on
2395 161 char IrCOMM devices (IrDA serial/parallel emulation)
2396 0 = /dev/ircomm0 First IrCOMM device
2397 1 = /dev/ircomm1 Second IrCOMM device
2399 16 = /dev/irlpt0 First IrLPT device
2400 17 = /dev/irlpt1 Second IrLPT device
2403 161 block Carmel 8-port SATA Disks on Second Controller
2404 0 = /dev/carmel/8 SATA disk 8 whole disk
2405 1 = /dev/carmel/8p1 SATA disk 8 partition 1
2407 31 = /dev/carmel/8p31 SATA disk 8 partition 31
2409 32 = /dev/carmel/9 SATA disk 9 whole disk
2410 64 = /dev/carmel/10 SATA disk 10 whole disk
2412 224 = /dev/carmel/15 SATA disk 15 whole disk
2414 Partitions are handled in the same way as for IDE
2415 disks (see major number 3) except that the limit on
2418 162 char Raw block device interface
2419 0 = /dev/rawctl Raw I/O control device
2420 1 = /dev/raw/raw1 First raw I/O device
2421 2 = /dev/raw/raw2 Second raw I/O device
2423 max minor number of raw device is set by kernel config
2424 MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
2428 164 char Chase Research AT/PCI-Fast serial card
2429 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2431 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2432 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2434 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2435 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2437 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2438 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2440 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2442 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2443 0 = /dev/cuch0 Callout device for ttyCH0
2445 63 = /dev/cuch63 Callout device for ttyCH63
2447 166 char ACM USB modems
2448 0 = /dev/ttyACM0 First ACM modem
2449 1 = /dev/ttyACM1 Second ACM modem
2452 167 char ACM USB modems - alternate devices
2453 0 = /dev/cuacm0 Callout device for ttyACM0
2454 1 = /dev/cuacm1 Callout device for ttyACM1
2457 168 char Eracom CSA7000 PCI encryption adaptor
2458 0 = /dev/ecsa0 First CSA7000
2459 1 = /dev/ecsa1 Second CSA7000
2462 169 char Eracom CSA8000 PCI encryption adaptor
2463 0 = /dev/ecsa8-0 First CSA8000
2464 1 = /dev/ecsa8-1 Second CSA8000
2467 170 char AMI MegaRAC remote access controller
2468 0 = /dev/megarac0 First MegaRAC card
2469 1 = /dev/megarac1 Second MegaRAC card
2472 171 char Reserved for IEEE 1394 (Firewire)
2474 172 char Moxa Intellio serial card
2475 0 = /dev/ttyMX0 First Moxa port
2476 1 = /dev/ttyMX1 Second Moxa port
2478 127 = /dev/ttyMX127 128th Moxa port
2479 128 = /dev/moxactl Moxa control port
2481 173 char Moxa Intellio serial card - alternate devices
2482 0 = /dev/cumx0 Callout device for ttyMX0
2483 1 = /dev/cumx1 Callout device for ttyMX1
2485 127 = /dev/cumx127 Callout device for ttyMX127
2487 174 char SmartIO serial card
2488 0 = /dev/ttySI0 First SmartIO port
2489 1 = /dev/ttySI1 Second SmartIO port
2492 175 char SmartIO serial card - alternate devices
2493 0 = /dev/cusi0 Callout device for ttySI0
2494 1 = /dev/cusi1 Callout device for ttySI1
2497 176 char nCipher nFast PCI crypto accelerator
2498 0 = /dev/nfastpci0 First nFast PCI device
2499 1 = /dev/nfastpci1 First nFast PCI device
2502 177 char TI PCILynx memory spaces
2503 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2505 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2506 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2508 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2509 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2511 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2513 178 char Giganet cLAN1xxx virtual interface adapter
2514 0 = /dev/clanvi0 First cLAN adapter
2515 1 = /dev/clanvi1 Second cLAN adapter
2518 179 block MMC block devices
2519 0 = /dev/mmcblk0 First SD/MMC card
2520 1 = /dev/mmcblk0p1 First partition on first MMC card
2521 8 = /dev/mmcblk1 Second SD/MMC card
2524 The start of next SD/MMC card can be configured with
2525 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe
2526 time using the mmcblk.perdev_minors option. That would
2527 bump the offset between each card to be the configured
2528 value instead of the default 8.
2530 179 char CCube DVXChip-based PCI products
2531 0 = /dev/dvxirq0 First DVX device
2532 1 = /dev/dvxirq1 Second DVX device
2535 180 char USB devices
2536 0 = /dev/usb/lp0 First USB printer
2538 15 = /dev/usb/lp15 16th USB printer
2539 48 = /dev/usb/scanner0 First USB scanner
2541 63 = /dev/usb/scanner15 16th USB scanner
2542 64 = /dev/usb/rio500 Diamond Rio 500
2543 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de)
2544 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD)
2545 96 = /dev/usb/hiddev0 1st USB HID device
2547 111 = /dev/usb/hiddev15 16th USB HID device
2548 112 = /dev/usb/auer0 1st auerswald ISDN device
2550 127 = /dev/usb/auer15 16th auerswald ISDN device
2551 128 = /dev/usb/brlvgr0 First Braille Voyager device
2553 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device
2554 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device
2555 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device
2557 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device
2558 144 = /dev/usb/lcd USB LCD device
2559 160 = /dev/usb/legousbtower0 1st USB Legotower device
2561 175 = /dev/usb/legousbtower15 16th USB Legotower device
2562 176 = /dev/usb/usbtmc1 First USB TMC device
2564 191 = /dev/usb/usbtmc16 16th USB TMC device
2565 192 = /dev/usb/yurex1 First USB Yurex device
2567 209 = /dev/usb/yurex16 16th USB Yurex device
2569 180 block USB block devices
2570 0 = /dev/uba First USB block device
2571 8 = /dev/ubb Second USB block device
2572 16 = /dev/ubc Third USB block device
2575 181 char Conrad Electronic parallel port radio clocks
2576 0 = /dev/pcfclock0 First Conrad radio clock
2577 1 = /dev/pcfclock1 Second Conrad radio clock
2580 182 char Picture Elements THR2 binarizer
2581 0 = /dev/pethr0 First THR2 board
2582 1 = /dev/pethr1 Second THR2 board
2585 183 char SST 5136-DN DeviceNet interface
2586 0 = /dev/ss5136dn0 First DeviceNet interface
2587 1 = /dev/ss5136dn1 Second DeviceNet interface
2590 This device used to be assigned to major number 144.
2591 It had to be moved due to an unfortunate conflict.
2593 184 char Picture Elements' video simulator/sender
2594 0 = /dev/pevss0 First sender board
2595 1 = /dev/pevss1 Second sender board
2598 185 char InterMezzo high availability file system
2599 0 = /dev/intermezzo0 First cache manager
2600 1 = /dev/intermezzo1 Second cache manager
2603 See http://web.archive.org/web/20080115195241/
2604 http://inter-mezzo.org/index.html
2606 186 char Object-based storage control device
2607 0 = /dev/obd0 First obd control device
2608 1 = /dev/obd1 Second obd control device
2611 See ftp://ftp.lustre.org/pub/obd for code and information.
2613 187 char DESkey hardware encryption device
2614 0 = /dev/deskey0 First DES key
2615 1 = /dev/deskey1 Second DES key
2618 188 char USB serial converters
2619 0 = /dev/ttyUSB0 First USB serial converter
2620 1 = /dev/ttyUSB1 Second USB serial converter
2623 189 char USB serial converters - alternate devices
2624 0 = /dev/cuusb0 Callout device for ttyUSB0
2625 1 = /dev/cuusb1 Callout device for ttyUSB1
2628 190 char Kansas City tracker/tuner card
2629 0 = /dev/kctt0 First KCT/T card
2630 1 = /dev/kctt1 Second KCT/T card
2633 191 char Reserved for PCMCIA
2635 192 char Kernel profiling interface
2636 0 = /dev/profile Profiling control device
2637 1 = /dev/profile0 Profiling device for CPU 0
2638 2 = /dev/profile1 Profiling device for CPU 1
2641 193 char Kernel event-tracing interface
2642 0 = /dev/trace Tracing control device
2643 1 = /dev/trace0 Tracing device for CPU 0
2644 2 = /dev/trace1 Tracing device for CPU 1
2647 194 char linVideoStreams (LINVS)
2648 0 = /dev/mvideo/status0 Video compression status
2649 1 = /dev/mvideo/stream0 Video stream
2650 2 = /dev/mvideo/frame0 Single compressed frame
2651 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2652 4 = /dev/mvideo/codec0 Direct codec access
2653 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2655 16 = /dev/mvideo/status1 Second device
2657 32 = /dev/mvideo/status2 Third device
2660 240 = /dev/mvideo/status15 16th device
2663 195 char Nvidia graphics devices
2664 0 = /dev/nvidia0 First Nvidia card
2665 1 = /dev/nvidia1 Second Nvidia card
2667 255 = /dev/nvidiactl Nvidia card control device
2669 196 char Tormenta T1 card
2670 0 = /dev/tor/0 Master control channel for all cards
2671 1 = /dev/tor/1 First DS0
2672 2 = /dev/tor/2 Second DS0
2674 48 = /dev/tor/48 48th DS0
2675 49 = /dev/tor/49 First pseudo-channel
2676 50 = /dev/tor/50 Second pseudo-channel
2679 197 char OpenTNF tracing facility
2680 0 = /dev/tnf/t0 Trace 0 data extraction
2681 1 = /dev/tnf/t1 Trace 1 data extraction
2683 128 = /dev/tnf/status Tracing facility status
2684 130 = /dev/tnf/trace Tracing device
2686 198 char Total Impact TPMP2 quad coprocessor PCI card
2687 0 = /dev/tpmp2/0 First card
2688 1 = /dev/tpmp2/1 Second card
2691 199 char Veritas volume manager (VxVM) volumes
2692 0 = /dev/vx/rdsk/*/* First volume
2693 1 = /dev/vx/rdsk/*/* Second volume
2696 199 block Veritas volume manager (VxVM) volumes
2697 0 = /dev/vx/dsk/*/* First volume
2698 1 = /dev/vx/dsk/*/* Second volume
2701 The namespace in these directories is maintained by
2702 the user space VxVM software.
2704 200 char Veritas VxVM configuration interface
2705 0 = /dev/vx/config Configuration access node
2706 1 = /dev/vx/trace Volume i/o trace access node
2707 2 = /dev/vx/iod Volume i/o daemon access node
2708 3 = /dev/vx/info Volume information access node
2709 4 = /dev/vx/task Volume tasks access node
2710 5 = /dev/vx/taskmon Volume tasks monitor daemon
2712 201 char Veritas VxVM dynamic multipathing driver
2713 0 = /dev/vx/rdmp/* First multipath device
2714 1 = /dev/vx/rdmp/* Second multipath device
2716 201 block Veritas VxVM dynamic multipathing driver
2717 0 = /dev/vx/dmp/* First multipath device
2718 1 = /dev/vx/dmp/* Second multipath device
2721 The namespace in these directories is maintained by
2722 the user space VxVM software.
2724 202 char CPU model-specific registers
2725 0 = /dev/cpu/0/msr MSRs on CPU 0
2726 1 = /dev/cpu/1/msr MSRs on CPU 1
2729 202 block Xen Virtual Block Device
2730 0 = /dev/xvda First Xen VBD whole disk
2731 16 = /dev/xvdb Second Xen VBD whole disk
2732 32 = /dev/xvdc Third Xen VBD whole disk
2734 240 = /dev/xvdp Sixteenth Xen VBD whole disk
2736 Partitions are handled in the same way as for IDE
2737 disks (see major number 3) except that the limit on
2740 203 char CPU CPUID information
2741 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2742 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2745 204 char Low-density serial ports
2746 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2747 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2748 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2749 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2750 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2751 5 = /dev/ttySA0 StrongARM builtin serial port 0
2752 6 = /dev/ttySA1 StrongARM builtin serial port 1
2753 7 = /dev/ttySA2 StrongARM builtin serial port 2
2754 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2755 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2756 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2757 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2758 12 = /dev/ttyFW0 Firmware console - port 0
2759 13 = /dev/ttyFW1 Firmware console - port 1
2760 14 = /dev/ttyFW2 Firmware console - port 2
2761 15 = /dev/ttyFW3 Firmware console - port 3
2762 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2764 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2765 32 = /dev/ttyDB0 DataBooster serial port 0
2767 39 = /dev/ttyDB7 DataBooster serial port 7
2768 40 = /dev/ttySG0 SGI Altix console port
2769 41 = /dev/ttySMX0 Motorola i.MX - port 0
2770 42 = /dev/ttySMX1 Motorola i.MX - port 1
2771 43 = /dev/ttySMX2 Motorola i.MX - port 2
2772 44 = /dev/ttyMM0 Marvell MPSC - port 0
2773 45 = /dev/ttyMM1 Marvell MPSC - port 1
2774 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0
2776 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
2777 50 = /dev/ttyIOC0 Altix serial card
2779 81 = /dev/ttyIOC31 Altix serial card
2780 82 = /dev/ttyVR0 NEC VR4100 series SIU
2781 83 = /dev/ttyVR1 NEC VR4100 series DSIU
2782 84 = /dev/ttyIOC84 Altix ioc4 serial card
2784 115 = /dev/ttyIOC115 Altix ioc4 serial card
2785 116 = /dev/ttySIOC0 Altix ioc3 serial card
2787 147 = /dev/ttySIOC31 Altix ioc3 serial card
2788 148 = /dev/ttyPSC0 PPC PSC - port 0
2790 153 = /dev/ttyPSC5 PPC PSC - port 5
2791 154 = /dev/ttyAT0 ATMEL serial port 0
2793 169 = /dev/ttyAT15 ATMEL serial port 15
2794 170 = /dev/ttyNX0 Hilscher netX serial port 0
2796 185 = /dev/ttyNX15 Hilscher netX serial port 15
2797 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
2798 187 = /dev/ttyUL0 Xilinx uartlite - port 0
2800 190 = /dev/ttyUL3 Xilinx uartlite - port 3
2801 191 = /dev/xvc0 Xen virtual console - port 0
2802 192 = /dev/ttyPZ0 pmac_zilog - port 0
2804 195 = /dev/ttyPZ3 pmac_zilog - port 3
2805 196 = /dev/ttyTX0 TX39/49 serial port 0
2807 204 = /dev/ttyTX7 TX39/49 serial port 7
2808 205 = /dev/ttySC0 SC26xx serial port 0
2809 206 = /dev/ttySC1 SC26xx serial port 1
2810 207 = /dev/ttySC2 SC26xx serial port 2
2811 208 = /dev/ttySC3 SC26xx serial port 3
2812 209 = /dev/ttyMAX0 MAX3100 serial port 0
2813 210 = /dev/ttyMAX1 MAX3100 serial port 1
2814 211 = /dev/ttyMAX2 MAX3100 serial port 2
2815 212 = /dev/ttyMAX3 MAX3100 serial port 3
2817 205 char Low-density serial ports (alternate device)
2818 0 = /dev/culu0 Callout device for ttyLU0
2819 1 = /dev/culu1 Callout device for ttyLU1
2820 2 = /dev/culu2 Callout device for ttyLU2
2821 3 = /dev/culu3 Callout device for ttyLU3
2822 4 = /dev/cufb0 Callout device for ttyFB0
2823 5 = /dev/cusa0 Callout device for ttySA0
2824 6 = /dev/cusa1 Callout device for ttySA1
2825 7 = /dev/cusa2 Callout device for ttySA2
2826 8 = /dev/cusc0 Callout device for ttySC0
2827 9 = /dev/cusc1 Callout device for ttySC1
2828 10 = /dev/cusc2 Callout device for ttySC2
2829 11 = /dev/cusc3 Callout device for ttySC3
2830 12 = /dev/cufw0 Callout device for ttyFW0
2831 13 = /dev/cufw1 Callout device for ttyFW1
2832 14 = /dev/cufw2 Callout device for ttyFW2
2833 15 = /dev/cufw3 Callout device for ttyFW3
2834 16 = /dev/cuam0 Callout device for ttyAM0
2836 31 = /dev/cuam15 Callout device for ttyAM15
2837 32 = /dev/cudb0 Callout device for ttyDB0
2839 39 = /dev/cudb7 Callout device for ttyDB7
2840 40 = /dev/cusg0 Callout device for ttySG0
2841 41 = /dev/ttycusmx0 Callout device for ttySMX0
2842 42 = /dev/ttycusmx1 Callout device for ttySMX1
2843 43 = /dev/ttycusmx2 Callout device for ttySMX2
2844 46 = /dev/cucpm0 Callout device for ttyCPM0
2846 49 = /dev/cucpm5 Callout device for ttyCPM5
2847 50 = /dev/cuioc40 Callout device for ttyIOC40
2849 81 = /dev/cuioc431 Callout device for ttyIOC431
2850 82 = /dev/cuvr0 Callout device for ttyVR0
2851 83 = /dev/cuvr1 Callout device for ttyVR1
2853 206 char OnStream SC-x0 tape devices
2854 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2855 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2857 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2858 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2860 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2861 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2863 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2864 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2866 128 = /dev/nosst0 No rewind version of /dev/osst0
2867 129 = /dev/nosst1 No rewind version of /dev/osst1
2869 160 = /dev/nosst0l No rewind version of /dev/osst0l
2870 161 = /dev/nosst1l No rewind version of /dev/osst1l
2872 192 = /dev/nosst0m No rewind version of /dev/osst0m
2873 193 = /dev/nosst1m No rewind version of /dev/osst1m
2875 224 = /dev/nosst0a No rewind version of /dev/osst0a
2876 225 = /dev/nosst1a No rewind version of /dev/osst1a
2879 The OnStream SC-x0 SCSI tapes do not support the
2880 standard SCSI SASD command set and therefore need
2881 their own driver "osst". Note that the IDE, USB (and
2882 maybe ParPort) versions may be driven via ide-scsi or
2883 usb-storage SCSI emulation and this osst device and
2884 driver as well. The ADR-x0 drives are QIC-157
2885 compliant and don't need osst.
2887 207 char Compaq ProLiant health feature indicate
2888 0 = /dev/cpqhealth/cpqw Redirector interface
2889 1 = /dev/cpqhealth/crom EISA CROM
2890 2 = /dev/cpqhealth/cdt Data Table
2891 3 = /dev/cpqhealth/cevt Event Log
2892 4 = /dev/cpqhealth/casr Automatic Server Recovery
2893 5 = /dev/cpqhealth/cecc ECC Memory
2894 6 = /dev/cpqhealth/cmca Machine Check Architecture
2895 7 = /dev/cpqhealth/ccsm Deprecated CDT
2896 8 = /dev/cpqhealth/cnmi NMI Handling
2897 9 = /dev/cpqhealth/css Sideshow Management
2898 10 = /dev/cpqhealth/cram CMOS interface
2899 11 = /dev/cpqhealth/cpci PCI IRQ interface
2901 208 char User space serial ports
2902 0 = /dev/ttyU0 First user space serial port
2903 1 = /dev/ttyU1 Second user space serial port
2906 209 char User space serial ports (alternate devices)
2907 0 = /dev/cuu0 Callout device for ttyU0
2908 1 = /dev/cuu1 Callout device for ttyU1
2911 210 char SBE, Inc. sync/async serial card
2912 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2913 1 = /dev/sbei/dld0 Download device for board 0
2914 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2915 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2916 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2917 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2918 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2919 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2920 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2921 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2922 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2923 11 = /dev/sbei/dld1 Download device for board 1
2924 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2925 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2926 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2927 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2928 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2929 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2930 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2931 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2934 Yes, each board is really spaced 10 (decimal) apart.
2936 211 char Addinum CPCI1500 digital I/O card
2937 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2938 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2941 212 char LinuxTV.org DVB driver subsystem
2942 0 = /dev/dvb/adapter0/video0 first video decoder of first card
2943 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card
2944 2 = /dev/dvb/adapter0/sec0 (obsolete/unused)
2945 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card
2946 4 = /dev/dvb/adapter0/demux0 first demux device of first card
2947 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card
2948 6 = /dev/dvb/adapter0/ca0 first common access port of first card
2949 7 = /dev/dvb/adapter0/net0 first network device of first card
2950 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card
2951 9 = /dev/dvb/adapter0/video1 second video decoder of first card
2953 64 = /dev/dvb/adapter1/video0 first video decoder of second card
2955 128 = /dev/dvb/adapter2/video0 first video decoder of third card
2957 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card
2959 216 char Bluetooth RFCOMM TTY devices
2960 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device
2961 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device
2964 217 char Bluetooth RFCOMM TTY devices (alternate devices)
2965 0 = /dev/curf0 Callout device for rfcomm0
2966 1 = /dev/curf1 Callout device for rfcomm1
2969 218 char The Logical Company bus Unibus/Qbus adapters
2970 0 = /dev/logicalco/bci/0 First bus adapter
2971 1 = /dev/logicalco/bci/1 First bus adapter
2974 219 char The Logical Company DCI-1300 digital I/O card
2975 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2976 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2979 220 char Myricom Myrinet "GM" board
2980 0 = /dev/myricom/gm0 First Myrinet GM board
2981 1 = /dev/myricom/gmp0 First board "root access"
2982 2 = /dev/myricom/gm1 Second Myrinet GM board
2983 3 = /dev/myricom/gmp1 Second board "root access"
2987 0 = /dev/bus/vme/m0 First master image
2988 1 = /dev/bus/vme/m1 Second master image
2989 2 = /dev/bus/vme/m2 Third master image
2990 3 = /dev/bus/vme/m3 Fourth master image
2991 4 = /dev/bus/vme/s0 First slave image
2992 5 = /dev/bus/vme/s1 Second slave image
2993 6 = /dev/bus/vme/s2 Third slave image
2994 7 = /dev/bus/vme/s3 Fourth slave image
2995 8 = /dev/bus/vme/ctl Control
2997 It is expected that all VME bus drivers will use the
2998 same interface. For interface documentation see
2999 http://www.vmelinux.org/.
3001 224 char A2232 serial card
3002 0 = /dev/ttyY0 First A2232 port
3003 1 = /dev/ttyY1 Second A2232 port
3006 225 char A2232 serial card (alternate devices)
3007 0 = /dev/cuy0 Callout device for ttyY0
3008 1 = /dev/cuy1 Callout device for ttyY1
3011 226 char Direct Rendering Infrastructure (DRI)
3012 0 = /dev/dri/card0 First graphics card
3013 1 = /dev/dri/card1 Second graphics card
3016 227 char IBM 3270 terminal Unix tty access
3017 1 = /dev/3270/tty1 First 3270 terminal
3018 2 = /dev/3270/tty2 Seconds 3270 terminal
3021 228 char IBM 3270 terminal block-mode access
3022 0 = /dev/3270/tub Controlling interface
3023 1 = /dev/3270/tub1 First 3270 terminal
3024 2 = /dev/3270/tub2 Second 3270 terminal
3027 229 char IBM iSeries/pSeries virtual console
3028 0 = /dev/hvc0 First console port
3029 1 = /dev/hvc1 Second console port
3032 230 char IBM iSeries virtual tape
3033 0 = /dev/iseries/vt0 First virtual tape, mode 0
3034 1 = /dev/iseries/vt1 Second virtual tape, mode 0
3036 32 = /dev/iseries/vt0l First virtual tape, mode 1
3037 33 = /dev/iseries/vt1l Second virtual tape, mode 1
3039 64 = /dev/iseries/vt0m First virtual tape, mode 2
3040 65 = /dev/iseries/vt1m Second virtual tape, mode 2
3042 96 = /dev/iseries/vt0a First virtual tape, mode 3
3043 97 = /dev/iseries/vt1a Second virtual tape, mode 3
3045 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind
3046 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind
3048 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind
3049 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind
3051 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind
3052 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind
3054 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind
3055 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind
3058 "No rewind" refers to the omission of the default
3059 automatic rewind on device close. The MTREW or MTOFFL
3060 ioctl()'s can be used to rewind the tape regardless of
3061 the device used to access it.
3064 0 = /dev/infiniband/umad0
3065 1 = /dev/infiniband/umad1
3067 63 = /dev/infiniband/umad63 63rd InfiniBandMad device
3068 64 = /dev/infiniband/issm0 First InfiniBand IsSM device
3069 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device
3071 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device
3072 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device
3073 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device
3075 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device
3077 232 char Biometric Devices
3078 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device
3079 1 = /dev/biometric/sensor0/iris first iris sensor on first device
3080 2 = /dev/biometric/sensor0/retina first retina sensor on first device
3081 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device
3082 4 = /dev/biometric/sensor0/facial first facial sensor on first device
3083 5 = /dev/biometric/sensor0/hand first hand sensor on first device
3085 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device
3087 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device
3090 233 char PathScale InfiniPath interconnect
3091 0 = /dev/ipath Primary device for programs (any unit)
3092 1 = /dev/ipath0 Access specifically to unit 0
3093 2 = /dev/ipath1 Access specifically to unit 1
3095 4 = /dev/ipath3 Access specifically to unit 3
3096 129 = /dev/ipath_sma Device used by Subnet Management Agent
3097 130 = /dev/ipath_diag Device used by diagnostics programs
3101 240-254 char LOCAL/EXPERIMENTAL USE
3103 240-254 block LOCAL/EXPERIMENTAL USE
3104 Allocated for local/experimental use. For devices not
3105 assigned official numbers, these ranges should be
3106 used in order to avoid conflicting with future assignments.
3112 This major is reserved to assist the expansion to a
3113 larger number space. No device nodes with this major
3114 should ever be created on the filesystem.
3115 (This is probably not true anymore, but I'll leave it
3118 ---LARGE MAJORS!!!!!---
3120 256 char Equinox SST multi-port serial boards
3121 0 = /dev/ttyEQ0 First serial port on first Equinox SST board
3122 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board
3123 128 = /dev/ttyEQ128 First serial port on second Equinox SST board
3125 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board
3127 256 block Resident Flash Disk Flash Translation Layer
3128 0 = /dev/rfda First RFD FTL layer
3129 16 = /dev/rfdb Second RFD FTL layer
3131 240 = /dev/rfdp 16th RFD FTL layer
3133 257 char Phoenix Technologies Cryptographic Services Driver
3134 0 = /dev/ptlsec Crypto Services Driver
3136 257 block SSFDC Flash Translation Layer filesystem
3137 0 = /dev/ssfdca First SSFDC layer
3138 8 = /dev/ssfdcb Second SSFDC layer
3139 16 = /dev/ssfdcc Third SSFDC layer
3140 24 = /dev/ssfdcd 4th SSFDC layer
3141 32 = /dev/ssfdce 5th SSFDC layer
3142 40 = /dev/ssfdcf 6th SSFDC layer
3143 48 = /dev/ssfdcg 7th SSFDC layer
3144 56 = /dev/ssfdch 8th SSFDC layer
3146 258 block ROM/Flash read-only translation layer
3147 0 = /dev/blockrom0 First ROM card's translation layer interface
3148 1 = /dev/blockrom1 Second ROM card's translation layer interface
3151 259 block Block Extended Major
3152 Used dynamically to hold additional partition minor
3153 numbers and allow large numbers of partitions per device
3155 259 char FPGA configuration interfaces
3156 0 = /dev/icap0 First Xilinx internal configuration
3157 1 = /dev/icap1 Second Xilinx internal configuration
3159 260 char OSD (Object-based-device) SCSI Device
3160 0 = /dev/osd0 First OSD Device
3161 1 = /dev/osd1 Second OSD Device
3163 255 = /dev/osd255 256th OSD Device
3165 **** ADDITIONAL /dev DIRECTORY ENTRIES
3167 This section details additional entries that should or may exist in
3168 the /dev directory. It is preferred that symbolic links use the same
3169 form (absolute or relative) as is indicated here. Links are
3170 classified as "hard" or "symbolic" depending on the preferred type of
3171 link; if possible, the indicated type of link should be used.
3176 These links should exist on all systems:
3178 /dev/fd /proc/self/fd symbolic File descriptors
3179 /dev/stdin fd/0 symbolic stdin file descriptor
3180 /dev/stdout fd/1 symbolic stdout file descriptor
3181 /dev/stderr fd/2 symbolic stderr file descriptor
3182 /dev/nfsd socksys symbolic Required by iBCS-2
3183 /dev/X0R null symbolic Required by iBCS-2
3185 Note: /dev/X0R is <letter X>-<digit 0>-<letter R>.
3189 It is recommended that these links exist on all systems:
3191 /dev/core /proc/kcore symbolic Backward compatibility
3192 /dev/ramdisk ram0 symbolic Backward compatibility
3193 /dev/ftape qft0 symbolic Backward compatibility
3194 /dev/bttv0 video0 symbolic Backward compatibility
3195 /dev/radio radio0 symbolic Backward compatibility
3196 /dev/i2o* /dev/i2o/* symbolic Backward compatibility
3197 /dev/scd? sr? hard Alternate SCSI CD-ROM name
3199 Locally defined links
3201 The following links may be established locally to conform to the
3202 configuration of the system. This is merely a tabulation of existing
3203 practice, and does not constitute a recommendation. However, if they
3204 exist, they should have the following uses.
3206 /dev/mouse mouse port symbolic Current mouse device
3207 /dev/tape tape device symbolic Current tape device
3208 /dev/cdrom CD-ROM device symbolic Current CD-ROM device
3209 /dev/cdwriter CD-writer symbolic Current CD-writer device
3210 /dev/scanner scanner symbolic Current scanner device
3211 /dev/modem modem port symbolic Current dialout device
3212 /dev/root root device symbolic Current root filesystem
3213 /dev/swap swap device symbolic Current swap device
3215 /dev/modem should not be used for a modem which supports dialin as
3216 well as dialout, as it tends to cause lock file problems. If it
3217 exists, /dev/modem should point to the appropriate primary TTY device
3218 (the use of the alternate callout devices is deprecated).
3220 For SCSI devices, /dev/tape and /dev/cdrom should point to the
3221 ``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas
3222 /dev/cdwriter and /dev/scanner should point to the appropriate generic
3223 SCSI devices (/dev/sg*).
3225 /dev/mouse may point to a primary serial TTY device, a hardware mouse
3226 device, or a socket for a mouse driver program (e.g. /dev/gpmdata).
3230 Non-transient sockets and named pipes may exist in /dev. Common entries are:
3232 /dev/printer socket lpd local socket
3233 /dev/log socket syslog local socket
3234 /dev/gpmdata socket gpm mouse multiplexer
3238 The following names are reserved for mounting special filesystems
3239 under /dev. These special filesystems provide kernel interfaces that
3240 cannot be provided with standard device nodes.
3242 /dev/pts devpts PTY slave filesystem
3243 /dev/shm tmpfs POSIX shared memory maintenance access
3245 **** TERMINAL DEVICES
3247 Terminal, or TTY devices are a special class of character devices. A
3248 terminal device is any device that could act as a controlling terminal
3249 for a session; this includes virtual consoles, serial ports, and
3250 pseudoterminals (PTYs).
3252 All terminal devices share a common set of capabilities known as line
3253 disciplines; these include the common terminal line discipline as well
3254 as SLIP and PPP modes.
3256 All terminal devices are named similarly; this section explains the
3257 naming and use of the various types of TTYs. Note that the naming
3258 conventions include several historical warts; some of these are
3259 Linux-specific, some were inherited from other systems, and some
3260 reflect Linux outgrowing a borrowed convention.
3262 A hash mark (#) in a device name is used here to indicate a decimal
3263 number without leading zeroes.
3265 Virtual consoles and the console device
3267 Virtual consoles are full-screen terminal displays on the system video
3268 monitor. Virtual consoles are named /dev/tty#, with numbering
3269 starting at /dev/tty1; /dev/tty0 is the current virtual console.
3270 /dev/tty0 is the device that should be used to access the system video
3271 card on those architectures for which the frame buffer devices
3272 (/dev/fb*) are not applicable. Do not use /dev/console
3275 The console device, /dev/console, is the device to which system
3276 messages should be sent, and on which logins should be permitted in
3277 single-user mode. Starting with Linux 2.1.71, /dev/console is managed
3278 by the kernel; for previous versions it should be a symbolic link to
3279 either /dev/tty0, a specific virtual console such as /dev/tty1, or to
3280 a serial port primary (tty*, not cu*) device, depending on the
3281 configuration of the system.
3285 Serial ports are RS-232 serial ports and any device which simulates
3286 one, either in hardware (such as internal modems) or in software (such
3287 as the ISDN driver.) Under Linux, each serial ports has two device
3288 names, the primary or callin device and the alternate or callout one.
3289 Each kind of device is indicated by a different letter. For any
3290 letter X, the names of the devices are /dev/ttyX# and /dev/cux#,
3291 respectively; for historical reasons, /dev/ttyS# and /dev/ttyC#
3292 correspond to /dev/cua# and /dev/cub#. In the future, it should be
3293 expected that multiple letters will be used; all letters will be upper
3294 case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the
3295 "cu" device (e.g. /dev/cudp#).
3297 The names /dev/ttyQ# and /dev/cuq# are reserved for local use.
3299 The alternate devices provide for kernel-based exclusion and somewhat
3300 different defaults than the primary devices. Their main purpose is to
3301 allow the use of serial ports with programs with no inherent or broken
3302 support for serial ports. Their use is deprecated, and they may be
3303 removed from a future version of Linux.
3305 Arbitration of serial ports is provided by the use of lock files with
3306 the names /var/lock/LCK..ttyX#. The contents of the lock file should
3307 be the PID of the locking process as an ASCII number.
3309 It is common practice to install links such as /dev/modem
3310 which point to serial ports. In order to ensure proper locking in the
3311 presence of these links, it is recommended that software chase
3312 symlinks and lock all possible names; additionally, it is recommended
3313 that a lock file be installed with the corresponding alternate
3314 device. In order to avoid deadlocks, it is recommended that the locks
3315 are acquired in the following order, and released in the reverse:
3317 1. The symbolic link name, if any (/var/lock/LCK..modem)
3318 2. The "tty" name (/var/lock/LCK..ttyS2)
3319 3. The alternate device name (/var/lock/LCK..cua2)
3321 In the case of nested symbolic links, the lock files should be
3322 installed in the order the symlinks are resolved.
3324 Under no circumstances should an application hold a lock while waiting
3325 for another to be released. In addition, applications which attempt
3326 to create lock files for the corresponding alternate device names
3327 should take into account the possibility of being used on a non-serial
3328 port TTY, for which no alternate device would exist.
3330 Pseudoterminals (PTYs)
3332 Pseudoterminals, or PTYs, are used to create login sessions or provide
3333 other capabilities requiring a TTY line discipline (including SLIP or
3334 PPP capability) to arbitrary data-generation processes. Each PTY has
3335 a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named
3336 /dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by
3337 allowing each master side to be opened only once.
3339 Once the master side has been opened, the corresponding slave device
3340 can be used in the same manner as any TTY device. The master and
3341 slave devices are connected by the kernel, generating the equivalent
3342 of a bidirectional pipe with TTY capabilities.
3344 Recent versions of the Linux kernels and GNU libc contain support for
3345 the System V/Unix98 naming scheme for PTYs, which assigns a common
3346 device, /dev/ptmx, to all the masters (opening it will automatically
3347 give you a previously unassigned PTY) and a subdirectory, /dev/pts,
3348 for the slaves; the slaves are named with decimal integers (/dev/pts/#
3349 in our notation). This removes the problem of exhausting the
3350 namespace and enables the kernel to automatically create the device
3351 nodes for the slaves on demand using the "devpts" filesystem.