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17 The LaTeX version of this document is no longer maintained.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26 The symbol {2.6} means the allocation is obsolete and scheduled for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
356 137 = /dev/vhci Bluetooth virtual HCI driver
357 139 = /dev/openprom SPARC OpenBoot PROM
358 140 = /dev/relay8 Berkshire Products Octal relay card
359 141 = /dev/relay16 Berkshire Products ISO-16 relay card
361 143 = /dev/pciconf PCI configuration space
362 144 = /dev/nvram Non-volatile configuration RAM
363 145 = /dev/hfmodem Soundcard shortwave modem control
364 146 = /dev/graphics Linux/SGI graphics device
365 147 = /dev/opengl Linux/SGI OpenGL pipe
366 148 = /dev/gfx Linux/SGI graphics effects device
367 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
368 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
369 151 = /dev/led Front panel LEDs
370 152 = /dev/kpoll Kernel Poll Driver
371 153 = /dev/mergemem Memory merge device
372 154 = /dev/pmu Macintosh PowerBook power manager
373 155 = /dev/isictl MultiTech ISICom serial control
374 156 = /dev/lcd Front panel LCD display
375 157 = /dev/ac Applicom Intl Profibus card
376 158 = /dev/nwbutton Netwinder external button
377 159 = /dev/nwdebug Netwinder debug interface
378 160 = /dev/nwflash Netwinder flash memory
379 161 = /dev/userdma User-space DMA access
380 162 = /dev/smbus System Management Bus
381 163 = /dev/lik Logitech Internet Keyboard
382 164 = /dev/ipmo Intel Intelligent Platform Management
383 165 = /dev/vmmon VMware virtual machine monitor
384 166 = /dev/i2o/ctl I2O configuration manager
385 167 = /dev/specialix_sxctl Specialix serial control
386 168 = /dev/tcldrv Technology Concepts serial control
387 169 = /dev/specialix_rioctl Specialix RIO serial control
388 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices
389 171 = /dev/srripc QNX4 API IPC manager
390 172 = /dev/usemaclone Semaphore clone device
391 173 = /dev/ipmikcs Intelligent Platform Management
392 174 = /dev/uctrl SPARCbook 3 microcontroller
393 175 = /dev/agpgart AGP Graphics Address Remapping Table
394 176 = /dev/gtrsc Gorgy Timing radio clock
395 177 = /dev/cbm Serial CBM bus
396 178 = /dev/jsflash JavaStation OS flash SIMM
397 179 = /dev/xsvc High-speed shared-mem/semaphore service
398 180 = /dev/vrbuttons Vr41xx button input device
399 181 = /dev/toshiba Toshiba laptop SMM support
400 182 = /dev/perfctr Performance-monitoring counters
401 183 = /dev/hwrng Generic random number generator
402 184 = /dev/cpu/microcode CPU microcode update interface
403 186 = /dev/atomicps Atomic shapshot of process state data
404 187 = /dev/irnet IrNET device
405 188 = /dev/smbusbios SMBus BIOS
406 189 = /dev/ussp_ctl User space serial port control
407 190 = /dev/crash Mission Critical Linux crash dump facility
408 191 = /dev/pcl181 <information missing>
409 192 = /dev/nas_xbus NAS xbus LCD/buttons access
410 193 = /dev/d7s SPARC 7-segment display
411 194 = /dev/zkshim Zero-Knowledge network shim control
412 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
413 196 = /dev/vfio/vfio VFIO userspace driver interface
414 198 = /dev/sexec Signed executable interface
415 199 = /dev/scanners/cuecat :CueCat barcode scanner
416 200 = /dev/net/tun TAP/TUN network device
417 201 = /dev/button/gulpb Transmeta GULP-B buttons
418 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control
419 203 = /dev/cuse Cuse (character device in user-space)
420 204 = /dev/video/em8300 EM8300 DVD decoder control
421 205 = /dev/video/em8300_mv EM8300 DVD decoder video
422 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
423 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
424 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
425 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
426 210 = /dev/impi/bt IMPI coprocessor block transfer
427 211 = /dev/impi/smic IMPI coprocessor stream interface
428 212 = /dev/watchdogs/0 First watchdog device
429 213 = /dev/watchdogs/1 Second watchdog device
430 214 = /dev/watchdogs/2 Third watchdog device
431 215 = /dev/watchdogs/3 Fourth watchdog device
432 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel
433 217 = /dev/ni/natmotn National Instruments Motion
434 218 = /dev/kchuid Inter-process chuid control
435 219 = /dev/modems/mwave MWave modem firmware upload
436 220 = /dev/mptctl Message passing technology (MPT) control
437 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver
438 222 = /dev/mvista/hasi Montavista PICMG high availability
439 223 = /dev/input/uinput User level driver support for input
440 224 = /dev/tpm TCPA TPM driver
441 225 = /dev/pps Pulse Per Second driver
442 226 = /dev/systrace Systrace device
443 227 = /dev/mcelog X86_64 Machine Check Exception driver
444 228 = /dev/hpet HPET driver
445 229 = /dev/fuse Fuse (virtual filesystem in user-space)
446 230 = /dev/midishare MidiShare driver
447 231 = /dev/snapshot System memory snapshot device
448 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions)
449 233 = /dev/kmview View-OS A process with a view
450 234 = /dev/btrfs-control Btrfs control device
451 235 = /dev/autofs Autofs control device
452 236 = /dev/mapper/control Device-Mapper control device
453 237 = /dev/loop-control Loopback control device
454 238 = /dev/vhost-net Host kernel accelerator for virtio net
456 240-254 Reserved for local use
457 255 Reserved for MISC_DYNAMIC_MINOR
459 11 char Raw keyboard device (Linux/SPARC only)
460 0 = /dev/kbd Raw keyboard device
462 11 char Serial Mux device (Linux/PA-RISC only)
463 0 = /dev/ttyB0 First mux port
464 1 = /dev/ttyB1 Second mux port
467 11 block SCSI CD-ROM devices
468 0 = /dev/scd0 First SCSI CD-ROM
469 1 = /dev/scd1 Second SCSI CD-ROM
472 The prefix /dev/sr (instead of /dev/scd) has been deprecated.
475 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
476 3 = /dev/tpqic11 QIC-11, rewind-on-close
477 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
478 5 = /dev/tpqic24 QIC-24, rewind-on-close
479 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
480 7 = /dev/tpqic120 QIC-120, rewind-on-close
481 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
482 9 = /dev/tpqic150 QIC-150, rewind-on-close
484 The device names specified are proposed -- if there
485 are "standard" names for these devices, please let me know.
490 0 = /dev/input/js0 First joystick
491 1 = /dev/input/js1 Second joystick
493 32 = /dev/input/mouse0 First mouse
494 33 = /dev/input/mouse1 Second mouse
496 63 = /dev/input/mice Unified mouse
497 64 = /dev/input/event0 First event queue
498 65 = /dev/input/event1 Second event queue
501 Each device type has 5 bits (32 minors).
503 13 block Previously used for the XT disk (/dev/xdN)
504 Deleted in kernel v3.9.
506 14 char Open Sound System (OSS)
507 0 = /dev/mixer Mixer control
508 1 = /dev/sequencer Audio sequencer
509 2 = /dev/midi00 First MIDI port
510 3 = /dev/dsp Digital audio
511 4 = /dev/audio Sun-compatible digital audio
513 7 = /dev/audioctl SPARC audio control device
514 8 = /dev/sequencer2 Sequencer -- alternate device
515 16 = /dev/mixer1 Second soundcard mixer control
516 17 = /dev/patmgr0 Sequencer patch manager
517 18 = /dev/midi01 Second MIDI port
518 19 = /dev/dsp1 Second soundcard digital audio
519 20 = /dev/audio1 Second soundcard Sun digital audio
520 33 = /dev/patmgr1 Sequencer patch manager
521 34 = /dev/midi02 Third MIDI port
522 50 = /dev/midi03 Fourth MIDI port
527 0 = /dev/js0 First analog joystick
528 1 = /dev/js1 Second analog joystick
530 128 = /dev/djs0 First digital joystick
531 129 = /dev/djs1 Second digital joystick
533 15 block Sony CDU-31A/CDU-33A CD-ROM
534 0 = /dev/sonycd Sony CDU-31a CD-ROM
536 16 char Non-SCSI scanners
537 0 = /dev/gs4500 Genius 4500 handheld scanner
539 16 block GoldStar CD-ROM
540 0 = /dev/gscd GoldStar CD-ROM
542 17 char OBSOLETE (was Chase serial card)
543 0 = /dev/ttyH0 First Chase port
544 1 = /dev/ttyH1 Second Chase port
546 17 block Optics Storage CD-ROM
547 0 = /dev/optcd Optics Storage CD-ROM
549 18 char OBSOLETE (was Chase serial card - alternate devices)
550 0 = /dev/cuh0 Callout device for ttyH0
551 1 = /dev/cuh1 Callout device for ttyH1
553 18 block Sanyo CD-ROM
554 0 = /dev/sjcd Sanyo CD-ROM
556 19 char Cyclades serial card
557 0 = /dev/ttyC0 First Cyclades port
559 31 = /dev/ttyC31 32nd Cyclades port
561 19 block "Double" compressed disk
562 0 = /dev/double0 First compressed disk
564 7 = /dev/double7 Eighth compressed disk
565 128 = /dev/cdouble0 Mirror of first compressed disk
567 135 = /dev/cdouble7 Mirror of eighth compressed disk
569 See the Double documentation for the meaning of the
572 20 char Cyclades serial card - alternate devices
573 0 = /dev/cub0 Callout device for ttyC0
575 31 = /dev/cub31 Callout device for ttyC31
577 20 block Hitachi CD-ROM (under development)
578 0 = /dev/hitcd Hitachi CD-ROM
580 21 char Generic SCSI access
581 0 = /dev/sg0 First generic SCSI device
582 1 = /dev/sg1 Second generic SCSI device
585 Most distributions name these /dev/sga, /dev/sgb...;
586 this sets an unnecessary limit of 26 SCSI devices in
587 the system and is counter to standard Linux
588 device-naming practice.
590 21 block Acorn MFM hard drive interface
591 0 = /dev/mfma First MFM drive whole disk
592 64 = /dev/mfmb Second MFM drive whole disk
594 This device is used on the ARM-based Acorn RiscPC.
595 Partitions are handled the same way as for IDE disks
596 (see major number 3).
598 22 char Digiboard serial card
599 0 = /dev/ttyD0 First Digiboard port
600 1 = /dev/ttyD1 Second Digiboard port
602 22 block Second IDE hard disk/CD-ROM interface
603 0 = /dev/hdc Master: whole disk (or CD-ROM)
604 64 = /dev/hdd Slave: whole disk (or CD-ROM)
606 Partitions are handled the same way as for the first
607 interface (see major number 3).
609 23 char Digiboard serial card - alternate devices
610 0 = /dev/cud0 Callout device for ttyD0
611 1 = /dev/cud1 Callout device for ttyD1
613 23 block Mitsumi proprietary CD-ROM
614 0 = /dev/mcd Mitsumi CD-ROM
616 24 char Stallion serial card
617 0 = /dev/ttyE0 Stallion port 0 card 0
618 1 = /dev/ttyE1 Stallion port 1 card 0
620 64 = /dev/ttyE64 Stallion port 0 card 1
621 65 = /dev/ttyE65 Stallion port 1 card 1
623 128 = /dev/ttyE128 Stallion port 0 card 2
624 129 = /dev/ttyE129 Stallion port 1 card 2
626 192 = /dev/ttyE192 Stallion port 0 card 3
627 193 = /dev/ttyE193 Stallion port 1 card 3
629 24 block Sony CDU-535 CD-ROM
630 0 = /dev/cdu535 Sony CDU-535 CD-ROM
632 25 char Stallion serial card - alternate devices
633 0 = /dev/cue0 Callout device for ttyE0
634 1 = /dev/cue1 Callout device for ttyE1
636 64 = /dev/cue64 Callout device for ttyE64
637 65 = /dev/cue65 Callout device for ttyE65
639 128 = /dev/cue128 Callout device for ttyE128
640 129 = /dev/cue129 Callout device for ttyE129
642 192 = /dev/cue192 Callout device for ttyE192
643 193 = /dev/cue193 Callout device for ttyE193
645 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
646 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
647 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
648 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
649 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
653 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
654 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
655 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
656 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
657 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
660 0 = /dev/qft0 Unit 0, rewind-on-close
661 1 = /dev/qft1 Unit 1, rewind-on-close
662 2 = /dev/qft2 Unit 2, rewind-on-close
663 3 = /dev/qft3 Unit 3, rewind-on-close
664 4 = /dev/nqft0 Unit 0, no rewind-on-close
665 5 = /dev/nqft1 Unit 1, no rewind-on-close
666 6 = /dev/nqft2 Unit 2, no rewind-on-close
667 7 = /dev/nqft3 Unit 3, no rewind-on-close
668 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
669 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
670 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
671 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
672 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
673 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
674 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
675 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
676 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
677 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
678 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
679 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
680 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
681 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
682 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
683 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
685 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
686 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
687 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
688 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
689 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
691 28 char Stallion serial card - card programming
692 0 = /dev/staliomem0 First Stallion card I/O memory
693 1 = /dev/staliomem1 Second Stallion card I/O memory
694 2 = /dev/staliomem2 Third Stallion card I/O memory
695 3 = /dev/staliomem3 Fourth Stallion card I/O memory
697 28 char Atari SLM ACSI laser printer (68k/Atari)
698 0 = /dev/slm0 First SLM laser printer
699 1 = /dev/slm1 Second SLM laser printer
701 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
702 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
703 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
704 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
705 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
707 28 block ACSI disk (68k/Atari)
708 0 = /dev/ada First ACSI disk whole disk
709 16 = /dev/adb Second ACSI disk whole disk
710 32 = /dev/adc Third ACSI disk whole disk
712 240 = /dev/adp 16th ACSI disk whole disk
714 Partitions are handled in the same way as for IDE
715 disks (see major number 3) except that the limit on
716 partitions is 15, like SCSI.
718 29 char Universal frame buffer
719 0 = /dev/fb0 First frame buffer
720 1 = /dev/fb1 Second frame buffer
722 31 = /dev/fb31 32nd frame buffer
724 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
725 0 = /dev/aztcd Aztech CD-ROM
727 30 char iBCS-2 compatibility devices
728 0 = /dev/socksys Socket access
729 1 = /dev/spx SVR3 local X interface
730 32 = /dev/inet/ip Network access
741 Additionally, iBCS-2 requires the following links:
743 /dev/ip -> /dev/inet/ip
744 /dev/icmp -> /dev/inet/icmp
745 /dev/ggp -> /dev/inet/ggp
746 /dev/ipip -> /dev/inet/ipip
747 /dev/tcp -> /dev/inet/tcp
748 /dev/egp -> /dev/inet/egp
749 /dev/pup -> /dev/inet/pup
750 /dev/udp -> /dev/inet/udp
751 /dev/idp -> /dev/inet/idp
752 /dev/rawip -> /dev/inet/rawip
753 /dev/inet/arp -> /dev/inet/udp
754 /dev/inet/rip -> /dev/inet/udp
755 /dev/nfsd -> /dev/socksys
756 /dev/X0R -> /dev/null (? apparently not required ?)
758 30 block Philips LMS CM-205 CD-ROM
759 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
761 /dev/lmscd is an older name for this device. This
762 driver does not work with the CM-205MS CD-ROM.
765 0 = /dev/mpu401data MPU-401 data port
766 1 = /dev/mpu401stat MPU-401 status port
768 31 block ROM/flash memory card
769 0 = /dev/rom0 First ROM card (rw)
771 7 = /dev/rom7 Eighth ROM card (rw)
772 8 = /dev/rrom0 First ROM card (ro)
774 15 = /dev/rrom7 Eighth ROM card (ro)
775 16 = /dev/flash0 First flash memory card (rw)
777 23 = /dev/flash7 Eighth flash memory card (rw)
778 24 = /dev/rflash0 First flash memory card (ro)
780 31 = /dev/rflash7 Eighth flash memory card (ro)
782 The read-write (rw) devices support back-caching
783 written data in RAM, as well as writing to flash RAM
784 devices. The read-only devices (ro) support reading
787 32 char Specialix serial card
788 0 = /dev/ttyX0 First Specialix port
789 1 = /dev/ttyX1 Second Specialix port
791 32 block Philips LMS CM-206 CD-ROM
792 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
794 33 char Specialix serial card - alternate devices
795 0 = /dev/cux0 Callout device for ttyX0
796 1 = /dev/cux1 Callout device for ttyX1
798 33 block Third IDE hard disk/CD-ROM interface
799 0 = /dev/hde Master: whole disk (or CD-ROM)
800 64 = /dev/hdf Slave: whole disk (or CD-ROM)
802 Partitions are handled the same way as for the first
803 interface (see major number 3).
805 34 char Z8530 HDLC driver
806 0 = /dev/scc0 First Z8530, first port
807 1 = /dev/scc1 First Z8530, second port
808 2 = /dev/scc2 Second Z8530, first port
809 3 = /dev/scc3 Second Z8530, second port
812 In a previous version these devices were named
813 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
816 34 block Fourth IDE hard disk/CD-ROM interface
817 0 = /dev/hdg Master: whole disk (or CD-ROM)
818 64 = /dev/hdh Slave: whole disk (or CD-ROM)
820 Partitions are handled the same way as for the first
821 interface (see major number 3).
823 35 char tclmidi MIDI driver
824 0 = /dev/midi0 First MIDI port, kernel timed
825 1 = /dev/midi1 Second MIDI port, kernel timed
826 2 = /dev/midi2 Third MIDI port, kernel timed
827 3 = /dev/midi3 Fourth MIDI port, kernel timed
828 64 = /dev/rmidi0 First MIDI port, untimed
829 65 = /dev/rmidi1 Second MIDI port, untimed
830 66 = /dev/rmidi2 Third MIDI port, untimed
831 67 = /dev/rmidi3 Fourth MIDI port, untimed
832 128 = /dev/smpte0 First MIDI port, SMPTE timed
833 129 = /dev/smpte1 Second MIDI port, SMPTE timed
834 130 = /dev/smpte2 Third MIDI port, SMPTE timed
835 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
837 35 block Slow memory ramdisk
838 0 = /dev/slram Slow memory ramdisk
840 36 char Netlink support
841 0 = /dev/route Routing, device updates, kernel to user
842 1 = /dev/skip enSKIP security cache control
843 3 = /dev/fwmonitor Firewall packet copies
844 16 = /dev/tap0 First Ethertap device
846 31 = /dev/tap15 16th Ethertap device
848 36 block OBSOLETE (was MCA ESDI hard disk)
851 0 = /dev/ht0 First IDE tape
852 1 = /dev/ht1 Second IDE tape
854 128 = /dev/nht0 First IDE tape, no rewind-on-close
855 129 = /dev/nht1 Second IDE tape, no rewind-on-close
858 Currently, only one IDE tape drive is supported.
860 37 block Zorro II ramdisk
861 0 = /dev/z2ram Zorro II ramdisk
863 38 char Myricom PCI Myrinet board
864 0 = /dev/mlanai0 First Myrinet board
865 1 = /dev/mlanai1 Second Myrinet board
868 This device is used for status query, board control
869 and "user level packet I/O." This board is also
870 accessible as a standard networking "eth" device.
872 38 block OBSOLETE (was Linux/AP+)
874 39 char ML-16P experimental I/O board
875 0 = /dev/ml16pa-a0 First card, first analog channel
876 1 = /dev/ml16pa-a1 First card, second analog channel
878 15 = /dev/ml16pa-a15 First card, 16th analog channel
879 16 = /dev/ml16pa-d First card, digital lines
880 17 = /dev/ml16pa-c0 First card, first counter/timer
881 18 = /dev/ml16pa-c1 First card, second counter/timer
882 19 = /dev/ml16pa-c2 First card, third counter/timer
883 32 = /dev/ml16pb-a0 Second card, first analog channel
884 33 = /dev/ml16pb-a1 Second card, second analog channel
886 47 = /dev/ml16pb-a15 Second card, 16th analog channel
887 48 = /dev/ml16pb-d Second card, digital lines
888 49 = /dev/ml16pb-c0 Second card, first counter/timer
889 50 = /dev/ml16pb-c1 Second card, second counter/timer
890 51 = /dev/ml16pb-c2 Second card, third counter/timer
898 41 char Yet Another Micro Monitor
899 0 = /dev/yamm Yet Another Micro Monitor
903 42 char Demo/sample use
905 42 block Demo/sample use
907 This number is intended for use in sample code, as
908 well as a general "example" device number. It
909 should never be used for a device driver that is being
910 distributed; either obtain an official number or use
911 the local/experimental range. The sudden addition or
912 removal of a driver with this number should not cause
913 ill effects to the system (bugs excepted.)
915 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
916 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
918 43 char isdn4linux virtual modem
919 0 = /dev/ttyI0 First virtual modem
921 63 = /dev/ttyI63 64th virtual modem
923 43 block Network block devices
924 0 = /dev/nb0 First network block device
925 1 = /dev/nb1 Second network block device
928 Network Block Device is somehow similar to loopback
929 devices: If you read from it, it sends packet across
930 network asking server for data. If you write to it, it
931 sends packet telling server to write. It could be used
932 to mounting filesystems over the net, swapping over
933 the net, implementing block device in userland etc.
935 44 char isdn4linux virtual modem - alternate devices
936 0 = /dev/cui0 Callout device for ttyI0
938 63 = /dev/cui63 Callout device for ttyI63
940 44 block Flash Translation Layer (FTL) filesystems
941 0 = /dev/ftla FTL on first Memory Technology Device
942 16 = /dev/ftlb FTL on second Memory Technology Device
943 32 = /dev/ftlc FTL on third Memory Technology Device
945 240 = /dev/ftlp FTL on 16th Memory Technology Device
947 Partitions are handled in the same way as for IDE
948 disks (see major number 3) except that the partition
949 limit is 15 rather than 63 per disk (same as SCSI.)
951 45 char isdn4linux ISDN BRI driver
952 0 = /dev/isdn0 First virtual B channel raw data
954 63 = /dev/isdn63 64th virtual B channel raw data
955 64 = /dev/isdnctrl0 First channel control/debug
957 127 = /dev/isdnctrl63 64th channel control/debug
959 128 = /dev/ippp0 First SyncPPP device
961 191 = /dev/ippp63 64th SyncPPP device
963 255 = /dev/isdninfo ISDN monitor interface
965 45 block Parallel port IDE disk devices
966 0 = /dev/pda First parallel port IDE disk
967 16 = /dev/pdb Second parallel port IDE disk
968 32 = /dev/pdc Third parallel port IDE disk
969 48 = /dev/pdd Fourth parallel port IDE disk
971 Partitions are handled in the same way as for IDE
972 disks (see major number 3) except that the partition
973 limit is 15 rather than 63 per disk.
975 46 char Comtrol Rocketport serial card
976 0 = /dev/ttyR0 First Rocketport port
977 1 = /dev/ttyR1 Second Rocketport port
979 46 block Parallel port ATAPI CD-ROM devices
980 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
981 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
982 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
983 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
985 47 char Comtrol Rocketport serial card - alternate devices
986 0 = /dev/cur0 Callout device for ttyR0
987 1 = /dev/cur1 Callout device for ttyR1
989 47 block Parallel port ATAPI disk devices
990 0 = /dev/pf0 First parallel port ATAPI disk
991 1 = /dev/pf1 Second parallel port ATAPI disk
992 2 = /dev/pf2 Third parallel port ATAPI disk
993 3 = /dev/pf3 Fourth parallel port ATAPI disk
995 This driver is intended for floppy disks and similar
996 devices and hence does not support partitioning.
998 48 char SDL RISCom serial card
999 0 = /dev/ttyL0 First RISCom port
1000 1 = /dev/ttyL1 Second RISCom port
1002 48 block Mylex DAC960 PCI RAID controller; first controller
1003 0 = /dev/rd/c0d0 First disk, whole disk
1004 8 = /dev/rd/c0d1 Second disk, whole disk
1006 248 = /dev/rd/c0d31 32nd disk, whole disk
1009 0 = /dev/rd/c?d? Whole disk
1010 1 = /dev/rd/c?d?p1 First partition
1012 7 = /dev/rd/c?d?p7 Seventh partition
1014 49 char SDL RISCom serial card - alternate devices
1015 0 = /dev/cul0 Callout device for ttyL0
1016 1 = /dev/cul1 Callout device for ttyL1
1018 49 block Mylex DAC960 PCI RAID controller; second controller
1019 0 = /dev/rd/c1d0 First disk, whole disk
1020 8 = /dev/rd/c1d1 Second disk, whole disk
1022 248 = /dev/rd/c1d31 32nd disk, whole disk
1024 Partitions are handled as for major 48.
1026 50 char Reserved for GLINT
1028 50 block Mylex DAC960 PCI RAID controller; third controller
1029 0 = /dev/rd/c2d0 First disk, whole disk
1030 8 = /dev/rd/c2d1 Second disk, whole disk
1032 248 = /dev/rd/c2d31 32nd disk, whole disk
1034 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
1035 0 = /dev/bc0 First Baycom radio modem
1036 1 = /dev/bc1 Second Baycom radio modem
1038 51 block Mylex DAC960 PCI RAID controller; fourth controller
1039 0 = /dev/rd/c3d0 First disk, whole disk
1040 8 = /dev/rd/c3d1 Second disk, whole disk
1042 248 = /dev/rd/c3d31 32nd disk, whole disk
1044 Partitions are handled as for major 48.
1046 52 char Spellcaster DataComm/BRI ISDN card
1047 0 = /dev/dcbri0 First DataComm card
1048 1 = /dev/dcbri1 Second DataComm card
1049 2 = /dev/dcbri2 Third DataComm card
1050 3 = /dev/dcbri3 Fourth DataComm card
1052 52 block Mylex DAC960 PCI RAID controller; fifth controller
1053 0 = /dev/rd/c4d0 First disk, whole disk
1054 8 = /dev/rd/c4d1 Second disk, whole disk
1056 248 = /dev/rd/c4d31 32nd disk, whole disk
1058 Partitions are handled as for major 48.
1060 53 char BDM interface for remote debugging MC683xx microcontrollers
1061 0 = /dev/pd_bdm0 PD BDM interface on lp0
1062 1 = /dev/pd_bdm1 PD BDM interface on lp1
1063 2 = /dev/pd_bdm2 PD BDM interface on lp2
1064 4 = /dev/icd_bdm0 ICD BDM interface on lp0
1065 5 = /dev/icd_bdm1 ICD BDM interface on lp1
1066 6 = /dev/icd_bdm2 ICD BDM interface on lp2
1068 This device is used for the interfacing to the MC683xx
1069 microcontrollers via Background Debug Mode by use of a
1070 Parallel Port interface. PD is the Motorola Public
1071 Domain Interface and ICD is the commercial interface
1074 53 block Mylex DAC960 PCI RAID controller; sixth controller
1075 0 = /dev/rd/c5d0 First disk, whole disk
1076 8 = /dev/rd/c5d1 Second disk, whole disk
1078 248 = /dev/rd/c5d31 32nd disk, whole disk
1080 Partitions are handled as for major 48.
1082 54 char Electrocardiognosis Holter serial card
1083 0 = /dev/holter0 First Holter port
1084 1 = /dev/holter1 Second Holter port
1085 2 = /dev/holter2 Third Holter port
1087 A custom serial card used by Electrocardiognosis SRL
1088 <mseritan@ottonel.pub.ro> to transfer data from Holter
1089 24-hour heart monitoring equipment.
1091 54 block Mylex DAC960 PCI RAID controller; seventh controller
1092 0 = /dev/rd/c6d0 First disk, whole disk
1093 8 = /dev/rd/c6d1 Second disk, whole disk
1095 248 = /dev/rd/c6d31 32nd disk, whole disk
1097 Partitions are handled as for major 48.
1099 55 char DSP56001 digital signal processor
1100 0 = /dev/dsp56k First DSP56001
1102 55 block Mylex DAC960 PCI RAID controller; eighth controller
1103 0 = /dev/rd/c7d0 First disk, whole disk
1104 8 = /dev/rd/c7d1 Second disk, whole disk
1106 248 = /dev/rd/c7d31 32nd disk, whole disk
1108 Partitions are handled as for major 48.
1110 56 char Apple Desktop Bus
1111 0 = /dev/adb ADB bus control
1113 Additional devices will be added to this number, all
1114 starting with /dev/adb.
1116 56 block Fifth IDE hard disk/CD-ROM interface
1117 0 = /dev/hdi Master: whole disk (or CD-ROM)
1118 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1120 Partitions are handled the same way as for the first
1121 interface (see major number 3).
1123 57 char Hayes ESP serial card
1124 0 = /dev/ttyP0 First ESP port
1125 1 = /dev/ttyP1 Second ESP port
1128 57 block Sixth IDE hard disk/CD-ROM interface
1129 0 = /dev/hdk Master: whole disk (or CD-ROM)
1130 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1132 Partitions are handled the same way as for the first
1133 interface (see major number 3).
1135 58 char Hayes ESP serial card - alternate devices
1136 0 = /dev/cup0 Callout device for ttyP0
1137 1 = /dev/cup1 Callout device for ttyP1
1140 58 block Reserved for logical volume manager
1142 59 char sf firewall package
1143 0 = /dev/firewall Communication with sf kernel module
1145 59 block Generic PDA filesystem device
1146 0 = /dev/pda0 First PDA device
1147 1 = /dev/pda1 Second PDA device
1150 The pda devices are used to mount filesystems on
1151 remote pda's (basically slow handheld machines with
1152 proprietary OS's and limited memory and storage
1153 running small fs translation drivers) through serial /
1154 IRDA / parallel links.
1156 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1158 60-63 char LOCAL/EXPERIMENTAL USE
1160 60-63 block LOCAL/EXPERIMENTAL USE
1161 Allocated for local/experimental use. For devices not
1162 assigned official numbers, these ranges should be
1163 used in order to avoid conflicting with future assignments.
1165 64 char ENskip kernel encryption package
1166 0 = /dev/enskip Communication with ENskip kernel module
1168 64 block Scramdisk/DriveCrypt encrypted devices
1169 0 = /dev/scramdisk/master Master node for ioctls
1170 1 = /dev/scramdisk/1 First encrypted device
1171 2 = /dev/scramdisk/2 Second encrypted device
1173 255 = /dev/scramdisk/255 255th encrypted device
1175 The filename of the encrypted container and the passwords
1176 are sent via ioctls (using the sdmount tool) to the master
1177 node which then activates them via one of the
1178 /dev/scramdisk/x nodes for loop mounting (all handled
1179 through the sdmount tool).
1181 Requested by: andy@scramdisklinux.org
1183 65 char Sundance "plink" Transputer boards (obsolete, unused)
1184 0 = /dev/plink0 First plink device
1185 1 = /dev/plink1 Second plink device
1186 2 = /dev/plink2 Third plink device
1187 3 = /dev/plink3 Fourth plink device
1188 64 = /dev/rplink0 First plink device, raw
1189 65 = /dev/rplink1 Second plink device, raw
1190 66 = /dev/rplink2 Third plink device, raw
1191 67 = /dev/rplink3 Fourth plink device, raw
1192 128 = /dev/plink0d First plink device, debug
1193 129 = /dev/plink1d Second plink device, debug
1194 130 = /dev/plink2d Third plink device, debug
1195 131 = /dev/plink3d Fourth plink device, debug
1196 192 = /dev/rplink0d First plink device, raw, debug
1197 193 = /dev/rplink1d Second plink device, raw, debug
1198 194 = /dev/rplink2d Third plink device, raw, debug
1199 195 = /dev/rplink3d Fourth plink device, raw, debug
1201 This is a commercial driver; contact James Howes
1202 <jth@prosig.demon.co.uk> for information.
1204 65 block SCSI disk devices (16-31)
1205 0 = /dev/sdq 17th SCSI disk whole disk
1206 16 = /dev/sdr 18th SCSI disk whole disk
1207 32 = /dev/sds 19th SCSI disk whole disk
1209 240 = /dev/sdaf 32nd SCSI disk whole disk
1211 Partitions are handled in the same way as for IDE
1212 disks (see major number 3) except that the limit on
1215 66 char YARC PowerPC PCI coprocessor card
1216 0 = /dev/yppcpci0 First YARC card
1217 1 = /dev/yppcpci1 Second YARC card
1220 66 block SCSI disk devices (32-47)
1221 0 = /dev/sdag 33th SCSI disk whole disk
1222 16 = /dev/sdah 34th SCSI disk whole disk
1223 32 = /dev/sdai 35th SCSI disk whole disk
1225 240 = /dev/sdav 48nd SCSI disk whole disk
1227 Partitions are handled in the same way as for IDE
1228 disks (see major number 3) except that the limit on
1231 67 char Coda network file system
1232 0 = /dev/cfs0 Coda cache manager
1234 See http://www.coda.cs.cmu.edu for information about Coda.
1236 67 block SCSI disk devices (48-63)
1237 0 = /dev/sdaw 49th SCSI disk whole disk
1238 16 = /dev/sdax 50th SCSI disk whole disk
1239 32 = /dev/sday 51st SCSI disk whole disk
1241 240 = /dev/sdbl 64th SCSI disk whole disk
1243 Partitions are handled in the same way as for IDE
1244 disks (see major number 3) except that the limit on
1247 68 char CAPI 2.0 interface
1248 0 = /dev/capi20 Control device
1249 1 = /dev/capi20.00 First CAPI 2.0 application
1250 2 = /dev/capi20.01 Second CAPI 2.0 application
1252 20 = /dev/capi20.19 19th CAPI 2.0 application
1254 ISDN CAPI 2.0 driver for use with CAPI 2.0
1255 applications; currently supports the AVM B1 card.
1257 68 block SCSI disk devices (64-79)
1258 0 = /dev/sdbm 65th SCSI disk whole disk
1259 16 = /dev/sdbn 66th SCSI disk whole disk
1260 32 = /dev/sdbo 67th SCSI disk whole disk
1262 240 = /dev/sdcb 80th SCSI disk whole disk
1264 Partitions are handled in the same way as for IDE
1265 disks (see major number 3) except that the limit on
1268 69 char MA16 numeric accelerator card
1269 0 = /dev/ma16 Board memory access
1271 69 block SCSI disk devices (80-95)
1272 0 = /dev/sdcc 81st SCSI disk whole disk
1273 16 = /dev/sdcd 82nd SCSI disk whole disk
1274 32 = /dev/sdce 83th SCSI disk whole disk
1276 240 = /dev/sdcr 96th SCSI disk whole disk
1278 Partitions are handled in the same way as for IDE
1279 disks (see major number 3) except that the limit on
1282 70 char SpellCaster Protocol Services Interface
1283 0 = /dev/apscfg Configuration interface
1284 1 = /dev/apsauth Authentication interface
1285 2 = /dev/apslog Logging interface
1286 3 = /dev/apsdbg Debugging interface
1287 64 = /dev/apsisdn ISDN command interface
1288 65 = /dev/apsasync Async command interface
1289 128 = /dev/apsmon Monitor interface
1291 70 block SCSI disk devices (96-111)
1292 0 = /dev/sdcs 97th SCSI disk whole disk
1293 16 = /dev/sdct 98th SCSI disk whole disk
1294 32 = /dev/sdcu 99th SCSI disk whole disk
1296 240 = /dev/sddh 112nd SCSI disk whole disk
1298 Partitions are handled in the same way as for IDE
1299 disks (see major number 3) except that the limit on
1302 71 char Computone IntelliPort II serial card
1303 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1304 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1306 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1307 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1308 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1310 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1311 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1312 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1314 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1315 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1316 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1318 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1320 71 block SCSI disk devices (112-127)
1321 0 = /dev/sddi 113th SCSI disk whole disk
1322 16 = /dev/sddj 114th SCSI disk whole disk
1323 32 = /dev/sddk 115th SCSI disk whole disk
1325 240 = /dev/sddx 128th SCSI disk whole disk
1327 Partitions are handled in the same way as for IDE
1328 disks (see major number 3) except that the limit on
1331 72 char Computone IntelliPort II serial card - alternate devices
1332 0 = /dev/cuf0 Callout device for ttyF0
1333 1 = /dev/cuf1 Callout device for ttyF1
1335 63 = /dev/cuf63 Callout device for ttyF63
1336 64 = /dev/cuf64 Callout device for ttyF64
1337 65 = /dev/cuf65 Callout device for ttyF65
1339 127 = /dev/cuf127 Callout device for ttyF127
1340 128 = /dev/cuf128 Callout device for ttyF128
1341 129 = /dev/cuf129 Callout device for ttyF129
1343 191 = /dev/cuf191 Callout device for ttyF191
1344 192 = /dev/cuf192 Callout device for ttyF192
1345 193 = /dev/cuf193 Callout device for ttyF193
1347 255 = /dev/cuf255 Callout device for ttyF255
1349 72 block Compaq Intelligent Drive Array, first controller
1350 0 = /dev/ida/c0d0 First logical drive whole disk
1351 16 = /dev/ida/c0d1 Second logical drive whole disk
1353 240 = /dev/ida/c0d15 16th logical drive whole disk
1355 Partitions are handled the same way as for Mylex
1356 DAC960 (see major number 48) except that the limit on
1359 73 char Computone IntelliPort II serial card - control devices
1360 0 = /dev/ip2ipl0 Loadware device for board 0
1361 1 = /dev/ip2stat0 Status device for board 0
1362 4 = /dev/ip2ipl1 Loadware device for board 1
1363 5 = /dev/ip2stat1 Status device for board 1
1364 8 = /dev/ip2ipl2 Loadware device for board 2
1365 9 = /dev/ip2stat2 Status device for board 2
1366 12 = /dev/ip2ipl3 Loadware device for board 3
1367 13 = /dev/ip2stat3 Status device for board 3
1369 73 block Compaq Intelligent Drive Array, second controller
1370 0 = /dev/ida/c1d0 First logical drive whole disk
1371 16 = /dev/ida/c1d1 Second logical drive whole disk
1373 240 = /dev/ida/c1d15 16th logical drive whole disk
1375 Partitions are handled the same way as for Mylex
1376 DAC960 (see major number 48) except that the limit on
1380 0 = /dev/SCI/0 SCI device 0
1381 1 = /dev/SCI/1 SCI device 1
1384 Currently for Dolphin Interconnect Solutions' PCI-SCI
1387 74 block Compaq Intelligent Drive Array, third controller
1388 0 = /dev/ida/c2d0 First logical drive whole disk
1389 16 = /dev/ida/c2d1 Second logical drive whole disk
1391 240 = /dev/ida/c2d15 16th logical drive whole disk
1393 Partitions are handled the same way as for Mylex
1394 DAC960 (see major number 48) except that the limit on
1397 75 char Specialix IO8+ serial card
1398 0 = /dev/ttyW0 First IO8+ port, first card
1399 1 = /dev/ttyW1 Second IO8+ port, first card
1401 8 = /dev/ttyW8 First IO8+ port, second card
1404 75 block Compaq Intelligent Drive Array, fourth controller
1405 0 = /dev/ida/c3d0 First logical drive whole disk
1406 16 = /dev/ida/c3d1 Second logical drive whole disk
1408 240 = /dev/ida/c3d15 16th logical drive whole disk
1410 Partitions are handled the same way as for Mylex
1411 DAC960 (see major number 48) except that the limit on
1414 76 char Specialix IO8+ serial card - alternate devices
1415 0 = /dev/cuw0 Callout device for ttyW0
1416 1 = /dev/cuw1 Callout device for ttyW1
1418 8 = /dev/cuw8 Callout device for ttyW8
1421 76 block Compaq Intelligent Drive Array, fifth controller
1422 0 = /dev/ida/c4d0 First logical drive whole disk
1423 16 = /dev/ida/c4d1 Second logical drive whole disk
1425 240 = /dev/ida/c4d15 16th logical drive whole disk
1427 Partitions are handled the same way as for Mylex
1428 DAC960 (see major number 48) except that the limit on
1432 77 char ComScire Quantum Noise Generator
1433 0 = /dev/qng ComScire Quantum Noise Generator
1435 77 block Compaq Intelligent Drive Array, sixth controller
1436 0 = /dev/ida/c5d0 First logical drive whole disk
1437 16 = /dev/ida/c5d1 Second logical drive whole disk
1439 240 = /dev/ida/c5d15 16th logical drive whole disk
1441 Partitions are handled the same way as for Mylex
1442 DAC960 (see major number 48) except that the limit on
1445 78 char PAM Software's multimodem boards
1446 0 = /dev/ttyM0 First PAM modem
1447 1 = /dev/ttyM1 Second PAM modem
1450 78 block Compaq Intelligent Drive Array, seventh controller
1451 0 = /dev/ida/c6d0 First logical drive whole disk
1452 16 = /dev/ida/c6d1 Second logical drive whole disk
1454 240 = /dev/ida/c6d15 16th logical drive whole disk
1456 Partitions are handled the same way as for Mylex
1457 DAC960 (see major number 48) except that the limit on
1460 79 char PAM Software's multimodem boards - alternate devices
1461 0 = /dev/cum0 Callout device for ttyM0
1462 1 = /dev/cum1 Callout device for ttyM1
1465 79 block Compaq Intelligent Drive Array, eighth controller
1466 0 = /dev/ida/c7d0 First logical drive whole disk
1467 16 = /dev/ida/c7d1 Second logical drive whole disk
1469 240 = /dev/ida/c715 16th logical drive whole disk
1471 Partitions are handled the same way as for Mylex
1472 DAC960 (see major number 48) except that the limit on
1475 80 char Photometrics AT200 CCD camera
1476 0 = /dev/at200 Photometrics AT200 CCD camera
1478 80 block I2O hard disk
1479 0 = /dev/i2o/hda First I2O hard disk, whole disk
1480 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1482 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1484 Partitions are handled in the same way as for IDE
1485 disks (see major number 3) except that the limit on
1489 0 = /dev/video0 Video capture/overlay device
1491 63 = /dev/video63 Video capture/overlay device
1492 64 = /dev/radio0 Radio device
1494 127 = /dev/radio63 Radio device
1495 224 = /dev/vbi0 Vertical blank interrupt
1497 255 = /dev/vbi31 Vertical blank interrupt
1499 81 block I2O hard disk
1500 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1501 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1503 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1505 Partitions are handled in the same way as for IDE
1506 disks (see major number 3) except that the limit on
1509 82 char WiNRADiO communications receiver card
1510 0 = /dev/winradio0 First WiNRADiO card
1511 1 = /dev/winradio1 Second WiNRADiO card
1514 The driver and documentation may be obtained from
1515 http://www.winradio.com/
1517 82 block I2O hard disk
1518 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1519 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1521 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1523 Partitions are handled in the same way as for IDE
1524 disks (see major number 3) except that the limit on
1527 83 char Matrox mga_vid video driver
1528 0 = /dev/mga_vid0 1st video card
1529 1 = /dev/mga_vid1 2nd video card
1530 2 = /dev/mga_vid2 3rd video card
1532 15 = /dev/mga_vid15 16th video card
1534 83 block I2O hard disk
1535 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1536 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1538 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk
1540 Partitions are handled in the same way as for IDE
1541 disks (see major number 3) except that the limit on
1544 84 char Ikon 1011[57] Versatec Greensheet Interface
1545 0 = /dev/ihcp0 First Greensheet port
1546 1 = /dev/ihcp1 Second Greensheet port
1548 84 block I2O hard disk
1549 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1550 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1552 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1554 Partitions are handled in the same way as for IDE
1555 disks (see major number 3) except that the limit on
1558 85 char Linux/SGI shared memory input queue
1559 0 = /dev/shmiq Master shared input queue
1560 1 = /dev/qcntl0 First device pushed
1561 2 = /dev/qcntl1 Second device pushed
1564 85 block I2O hard disk
1565 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1566 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1568 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk
1570 Partitions are handled in the same way as for IDE
1571 disks (see major number 3) except that the limit on
1574 86 char SCSI media changer
1575 0 = /dev/sch0 First SCSI media changer
1576 1 = /dev/sch1 Second SCSI media changer
1579 86 block I2O hard disk
1580 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1581 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1583 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1585 Partitions are handled in the same way as for IDE
1586 disks (see major number 3) except that the limit on
1589 87 char Sony Control-A1 stereo control bus
1590 0 = /dev/controla0 First device on chain
1591 1 = /dev/controla1 Second device on chain
1594 87 block I2O hard disk
1595 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1596 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1598 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1600 Partitions are handled in the same way as for IDE
1601 disks (see major number 3) except that the limit on
1604 88 char COMX synchronous serial card
1605 0 = /dev/comx0 COMX channel 0
1606 1 = /dev/comx1 COMX channel 1
1609 88 block Seventh IDE hard disk/CD-ROM interface
1610 0 = /dev/hdm Master: whole disk (or CD-ROM)
1611 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1613 Partitions are handled the same way as for the first
1614 interface (see major number 3).
1616 89 char I2C bus interface
1617 0 = /dev/i2c-0 First I2C adapter
1618 1 = /dev/i2c-1 Second I2C adapter
1621 89 block Eighth IDE hard disk/CD-ROM interface
1622 0 = /dev/hdo Master: whole disk (or CD-ROM)
1623 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1625 Partitions are handled the same way as for the first
1626 interface (see major number 3).
1628 90 char Memory Technology Device (RAM, ROM, Flash)
1629 0 = /dev/mtd0 First MTD (rw)
1630 1 = /dev/mtdr0 First MTD (ro)
1632 30 = /dev/mtd15 16th MTD (rw)
1633 31 = /dev/mtdr15 16th MTD (ro)
1635 90 block Ninth IDE hard disk/CD-ROM interface
1636 0 = /dev/hdq Master: whole disk (or CD-ROM)
1637 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1639 Partitions are handled the same way as for the first
1640 interface (see major number 3).
1642 91 char CAN-Bus devices
1643 0 = /dev/can0 First CAN-Bus controller
1644 1 = /dev/can1 Second CAN-Bus controller
1647 91 block Tenth IDE hard disk/CD-ROM interface
1648 0 = /dev/hds Master: whole disk (or CD-ROM)
1649 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1651 Partitions are handled the same way as for the first
1652 interface (see major number 3).
1654 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1656 92 block PPDD encrypted disk driver
1657 0 = /dev/ppdd0 First encrypted disk
1658 1 = /dev/ppdd1 Second encrypted disk
1661 Partitions are handled in the same way as for IDE
1662 disks (see major number 3) except that the limit on
1667 93 block NAND Flash Translation Layer filesystem
1668 0 = /dev/nftla First NFTL layer
1669 16 = /dev/nftlb Second NFTL layer
1671 240 = /dev/nftlp 16th NTFL layer
1675 94 block IBM S/390 DASD block storage
1676 0 = /dev/dasda First DASD device, major
1677 1 = /dev/dasda1 First DASD device, block 1
1678 2 = /dev/dasda2 First DASD device, block 2
1679 3 = /dev/dasda3 First DASD device, block 3
1680 4 = /dev/dasdb Second DASD device, major
1681 5 = /dev/dasdb1 Second DASD device, block 1
1682 6 = /dev/dasdb2 Second DASD device, block 2
1683 7 = /dev/dasdb3 Second DASD device, block 3
1687 0 = /dev/ipl Filter control device/log file
1688 1 = /dev/ipnat NAT control device/log file
1689 2 = /dev/ipstate State information log file
1690 3 = /dev/ipauth Authentication control device/log file
1693 96 char Parallel port ATAPI tape devices
1694 0 = /dev/pt0 First parallel port ATAPI tape
1695 1 = /dev/pt1 Second parallel port ATAPI tape
1697 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1698 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1701 96 block Inverse NAND Flash Translation Layer
1702 0 = /dev/inftla First INFTL layer
1703 16 = /dev/inftlb Second INFTL layer
1705 240 = /dev/inftlp 16th INTFL layer
1707 97 char Parallel port generic ATAPI interface
1708 0 = /dev/pg0 First parallel port ATAPI device
1709 1 = /dev/pg1 Second parallel port ATAPI device
1710 2 = /dev/pg2 Third parallel port ATAPI device
1711 3 = /dev/pg3 Fourth parallel port ATAPI device
1713 These devices support the same API as the generic SCSI
1716 98 char Control and Measurement Device (comedi)
1717 0 = /dev/comedi0 First comedi device
1718 1 = /dev/comedi1 Second comedi device
1721 See http://stm.lbl.gov/comedi.
1723 98 block User-mode virtual block device
1724 0 = /dev/ubda First user-mode block device
1725 16 = /dev/udbb Second user-mode block device
1728 Partitions are handled in the same way as for IDE
1729 disks (see major number 3) except that the limit on
1732 This device is used by the user-mode virtual kernel port.
1734 99 char Raw parallel ports
1735 0 = /dev/parport0 First parallel port
1736 1 = /dev/parport1 Second parallel port
1739 99 block JavaStation flash disk
1740 0 = /dev/jsfd JavaStation flash disk
1742 100 char Telephony for Linux
1743 0 = /dev/phone0 First telephony device
1744 1 = /dev/phone1 Second telephony device
1747 101 char Motorola DSP 56xxx board
1748 0 = /dev/mdspstat Status information
1749 1 = /dev/mdsp1 First DSP board I/O controls
1751 16 = /dev/mdsp16 16th DSP board I/O controls
1753 101 block AMI HyperDisk RAID controller
1754 0 = /dev/amiraid/ar0 First array whole disk
1755 16 = /dev/amiraid/ar1 Second array whole disk
1757 240 = /dev/amiraid/ar15 16th array whole disk
1759 For each device, partitions are added as:
1760 0 = /dev/amiraid/ar? Whole disk
1761 1 = /dev/amiraid/ar?p1 First partition
1762 2 = /dev/amiraid/ar?p2 Second partition
1764 15 = /dev/amiraid/ar?p15 15th partition
1768 102 block Compressed block device
1769 0 = /dev/cbd/a First compressed block device, whole device
1770 16 = /dev/cbd/b Second compressed block device, whole device
1772 240 = /dev/cbd/p 16th compressed block device, whole device
1774 Partitions are handled in the same way as for IDE
1775 disks (see major number 3) except that the limit on
1778 103 char Arla network file system
1779 0 = /dev/nnpfs0 First NNPFS device
1780 1 = /dev/nnpfs1 Second NNPFS device
1782 Arla is a free clone of the Andrew File System, AFS.
1783 The NNPFS device gives user mode filesystem
1784 implementations a kernel presence for caching and easy
1785 mounting. For more information about the project,
1786 write to <arla-drinkers@stacken.kth.se> or see
1787 http://www.stacken.kth.se/project/arla/
1789 103 block Audit device
1790 0 = /dev/audit Audit device
1792 104 char Flash BIOS support
1794 104 block Compaq Next Generation Drive Array, first controller
1795 0 = /dev/cciss/c0d0 First logical drive, whole disk
1796 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1798 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1800 Partitions are handled the same way as for Mylex
1801 DAC960 (see major number 48) except that the limit on
1804 105 char Comtrol VS-1000 serial controller
1805 0 = /dev/ttyV0 First VS-1000 port
1806 1 = /dev/ttyV1 Second VS-1000 port
1809 105 block Compaq Next Generation Drive Array, second controller
1810 0 = /dev/cciss/c1d0 First logical drive, whole disk
1811 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1813 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1815 Partitions are handled the same way as for Mylex
1816 DAC960 (see major number 48) except that the limit on
1819 106 char Comtrol VS-1000 serial controller - alternate devices
1820 0 = /dev/cuv0 First VS-1000 port
1821 1 = /dev/cuv1 Second VS-1000 port
1824 106 block Compaq Next Generation Drive Array, third controller
1825 0 = /dev/cciss/c2d0 First logical drive, whole disk
1826 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1828 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1830 Partitions are handled the same way as for Mylex
1831 DAC960 (see major number 48) except that the limit on
1834 107 char 3Dfx Voodoo Graphics device
1835 0 = /dev/3dfx Primary 3Dfx graphics device
1837 107 block Compaq Next Generation Drive Array, fourth controller
1838 0 = /dev/cciss/c3d0 First logical drive, whole disk
1839 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1841 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1843 Partitions are handled the same way as for Mylex
1844 DAC960 (see major number 48) except that the limit on
1847 108 char Device independent PPP interface
1848 0 = /dev/ppp Device independent PPP interface
1850 108 block Compaq Next Generation Drive Array, fifth controller
1851 0 = /dev/cciss/c4d0 First logical drive, whole disk
1852 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1854 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1856 Partitions are handled the same way as for Mylex
1857 DAC960 (see major number 48) except that the limit on
1860 109 char Reserved for logical volume manager
1862 109 block Compaq Next Generation Drive Array, sixth controller
1863 0 = /dev/cciss/c5d0 First logical drive, whole disk
1864 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1866 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1868 Partitions are handled the same way as for Mylex
1869 DAC960 (see major number 48) except that the limit on
1872 110 char miroMEDIA Surround board
1873 0 = /dev/srnd0 First miroMEDIA Surround board
1874 1 = /dev/srnd1 Second miroMEDIA Surround board
1877 110 block Compaq Next Generation Drive Array, seventh controller
1878 0 = /dev/cciss/c6d0 First logical drive, whole disk
1879 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1881 240 = /dev/cciss/c6d15 16th logical drive, whole disk
1883 Partitions are handled the same way as for Mylex
1884 DAC960 (see major number 48) except that the limit on
1889 111 block Compaq Next Generation Drive Array, eighth controller
1890 0 = /dev/cciss/c7d0 First logical drive, whole disk
1891 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1893 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1895 Partitions are handled the same way as for Mylex
1896 DAC960 (see major number 48) except that the limit on
1899 112 char ISI serial card
1900 0 = /dev/ttyM0 First ISI port
1901 1 = /dev/ttyM1 Second ISI port
1904 There is currently a device-naming conflict between
1905 these and PAM multimodems (major 78).
1907 112 block IBM iSeries virtual disk
1908 0 = /dev/iseries/vda First virtual disk, whole disk
1909 8 = /dev/iseries/vdb Second virtual disk, whole disk
1911 200 = /dev/iseries/vdz 26th virtual disk, whole disk
1912 208 = /dev/iseries/vdaa 27th virtual disk, whole disk
1914 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk
1916 Partitions are handled in the same way as for IDE
1917 disks (see major number 3) except that the limit on
1920 113 char ISI serial card - alternate devices
1921 0 = /dev/cum0 Callout device for ttyM0
1922 1 = /dev/cum1 Callout device for ttyM1
1925 113 block IBM iSeries virtual CD-ROM
1926 0 = /dev/iseries/vcda First virtual CD-ROM
1927 1 = /dev/iseries/vcdb Second virtual CD-ROM
1930 114 char Picture Elements ISE board
1931 0 = /dev/ise0 First ISE board
1932 1 = /dev/ise1 Second ISE board
1934 128 = /dev/isex0 Control node for first ISE board
1935 129 = /dev/isex1 Control node for second ISE board
1938 The ISE board is an embedded computer, optimized for
1939 image processing. The /dev/iseN nodes are the general
1940 I/O access to the board, the /dev/isex0 nodes command
1941 nodes used to control the board.
1943 114 block IDE BIOS powered software RAID interfaces such as the
1947 1 = /dev/ataraid/d0p1
1948 2 = /dev/ataraid/d0p2
1950 16 = /dev/ataraid/d1
1951 17 = /dev/ataraid/d1p1
1952 18 = /dev/ataraid/d1p2
1954 255 = /dev/ataraid/d15p15
1956 Partitions are handled in the same way as for IDE
1957 disks (see major number 3) except that the limit on
1960 115 char TI link cable devices (115 was formerly the console driver speaker)
1961 0 = /dev/tipar0 Parallel cable on first parallel port
1963 7 = /dev/tipar7 Parallel cable on seventh parallel port
1965 8 = /dev/tiser0 Serial cable on first serial port
1967 15 = /dev/tiser7 Serial cable on seventh serial port
1969 16 = /dev/tiusb0 First USB cable
1971 47 = /dev/tiusb31 32nd USB cable
1973 115 block NetWare (NWFS) Devices (0-255)
1975 The NWFS (NetWare) devices are used to present a
1976 collection of NetWare Mirror Groups or NetWare
1977 Partitions as a logical storage segment for
1978 use in mounting NetWare volumes. A maximum of
1979 256 NetWare volumes can be supported in a single
1982 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
1984 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
1985 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
1986 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
1988 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
1990 116 char Advanced Linux Sound Driver (ALSA)
1992 116 block MicroMemory battery backed RAM adapter (NVRAM)
1993 Supports 16 boards, 15 partitions each.
1994 Requested by neilb at cse.unsw.edu.au.
1996 0 = /dev/umem/d0 Whole of first board
1997 1 = /dev/umem/d0p1 First partition of first board
1998 2 = /dev/umem/d0p2 Second partition of first board
1999 15 = /dev/umem/d0p15 15th partition of first board
2001 16 = /dev/umem/d1 Whole of second board
2002 17 = /dev/umem/d1p1 First partition of second board
2004 255= /dev/umem/d15p15 15th partition of 16th board.
2006 117 char COSA/SRP synchronous serial card
2007 0 = /dev/cosa0c0 1st board, 1st channel
2008 1 = /dev/cosa0c1 1st board, 2nd channel
2010 16 = /dev/cosa1c0 2nd board, 1st channel
2011 17 = /dev/cosa1c1 2nd board, 2nd channel
2014 117 block Enterprise Volume Management System (EVMS)
2016 The EVMS driver uses a layered, plug-in model to provide
2017 unparalleled flexibility and extensibility in managing
2018 storage. This allows for easy expansion or customization
2019 of various levels of volume management. Requested by
2020 Mark Peloquin (peloquin at us.ibm.com).
2022 Note: EVMS populates and manages all the devnodes in
2025 http://sf.net/projects/evms
2027 0 = /dev/evms/block_device EVMS block device
2028 1 = /dev/evms/legacyname1 First EVMS legacy device
2029 2 = /dev/evms/legacyname2 Second EVMS legacy device
2031 Both ranges can grow (down or up) until they meet.
2033 254 = /dev/evms/EVMSname2 Second EVMS native device
2034 255 = /dev/evms/EVMSname1 First EVMS native device
2036 Note: legacyname(s) are derived from the normal legacy
2037 device names. For example, /dev/hda5 would become
2040 118 char IBM Cryptographic Accelerator
2041 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators
2042 1 = /dev/ica0 IBMCA Device 0
2043 2 = /dev/ica1 IBMCA Device 1
2046 119 char VMware virtual network control
2047 0 = /dev/vnet0 1st virtual network
2048 1 = /dev/vnet1 2nd virtual network
2051 120-127 char LOCAL/EXPERIMENTAL USE
2053 120-127 block LOCAL/EXPERIMENTAL USE
2054 Allocated for local/experimental use. For devices not
2055 assigned official numbers, these ranges should be
2056 used in order to avoid conflicting with future assignments.
2058 128-135 char Unix98 PTY masters
2060 These devices should not have corresponding device
2061 nodes; instead they should be accessed through the
2062 /dev/ptmx cloning interface.
2064 128 block SCSI disk devices (128-143)
2065 0 = /dev/sddy 129th SCSI disk whole disk
2066 16 = /dev/sddz 130th SCSI disk whole disk
2067 32 = /dev/sdea 131th SCSI disk whole disk
2069 240 = /dev/sden 144th SCSI disk whole disk
2071 Partitions are handled in the same way as for IDE
2072 disks (see major number 3) except that the limit on
2075 129 block SCSI disk devices (144-159)
2076 0 = /dev/sdeo 145th SCSI disk whole disk
2077 16 = /dev/sdep 146th SCSI disk whole disk
2078 32 = /dev/sdeq 147th SCSI disk whole disk
2080 240 = /dev/sdfd 160th SCSI disk whole disk
2082 Partitions are handled in the same way as for IDE
2083 disks (see major number 3) except that the limit on
2086 130 char (Misc devices)
2088 130 block SCSI disk devices (160-175)
2089 0 = /dev/sdfe 161st SCSI disk whole disk
2090 16 = /dev/sdff 162nd SCSI disk whole disk
2091 32 = /dev/sdfg 163rd SCSI disk whole disk
2093 240 = /dev/sdft 176th SCSI disk whole disk
2095 Partitions are handled in the same way as for IDE
2096 disks (see major number 3) except that the limit on
2099 131 block SCSI disk devices (176-191)
2100 0 = /dev/sdfu 177th SCSI disk whole disk
2101 16 = /dev/sdfv 178th SCSI disk whole disk
2102 32 = /dev/sdfw 179th SCSI disk whole disk
2104 240 = /dev/sdgj 192nd SCSI disk whole disk
2106 Partitions are handled in the same way as for IDE
2107 disks (see major number 3) except that the limit on
2110 132 block SCSI disk devices (192-207)
2111 0 = /dev/sdgk 193rd SCSI disk whole disk
2112 16 = /dev/sdgl 194th SCSI disk whole disk
2113 32 = /dev/sdgm 195th SCSI disk whole disk
2115 240 = /dev/sdgz 208th SCSI disk whole disk
2117 Partitions are handled in the same way as for IDE
2118 disks (see major number 3) except that the limit on
2121 133 block SCSI disk devices (208-223)
2122 0 = /dev/sdha 209th SCSI disk whole disk
2123 16 = /dev/sdhb 210th SCSI disk whole disk
2124 32 = /dev/sdhc 211th SCSI disk whole disk
2126 240 = /dev/sdhp 224th SCSI disk whole disk
2128 Partitions are handled in the same way as for IDE
2129 disks (see major number 3) except that the limit on
2132 134 block SCSI disk devices (224-239)
2133 0 = /dev/sdhq 225th SCSI disk whole disk
2134 16 = /dev/sdhr 226th SCSI disk whole disk
2135 32 = /dev/sdhs 227th SCSI disk whole disk
2137 240 = /dev/sdif 240th SCSI disk whole disk
2139 Partitions are handled in the same way as for IDE
2140 disks (see major number 3) except that the limit on
2143 135 block SCSI disk devices (240-255)
2144 0 = /dev/sdig 241st SCSI disk whole disk
2145 16 = /dev/sdih 242nd SCSI disk whole disk
2146 32 = /dev/sdih 243rd SCSI disk whole disk
2148 240 = /dev/sdiv 256th SCSI disk whole disk
2150 Partitions are handled in the same way as for IDE
2151 disks (see major number 3) except that the limit on
2154 136-143 char Unix98 PTY slaves
2155 0 = /dev/pts/0 First Unix98 pseudo-TTY
2156 1 = /dev/pts/1 Second Unix98 pseudo-TTY
2159 These device nodes are automatically generated with
2160 the proper permissions and modes by mounting the
2161 devpts filesystem onto /dev/pts with the appropriate
2162 mount options (distribution dependent, however, on
2163 *most* distributions the appropriate options are
2164 "mode=0620,gid=<gid of the "tty" group>".)
2166 136 block Mylex DAC960 PCI RAID controller; ninth controller
2167 0 = /dev/rd/c8d0 First disk, whole disk
2168 8 = /dev/rd/c8d1 Second disk, whole disk
2170 248 = /dev/rd/c8d31 32nd disk, whole disk
2172 Partitions are handled as for major 48.
2174 137 block Mylex DAC960 PCI RAID controller; tenth controller
2175 0 = /dev/rd/c9d0 First disk, whole disk
2176 8 = /dev/rd/c9d1 Second disk, whole disk
2178 248 = /dev/rd/c9d31 32nd disk, whole disk
2180 Partitions are handled as for major 48.
2182 138 block Mylex DAC960 PCI RAID controller; eleventh controller
2183 0 = /dev/rd/c10d0 First disk, whole disk
2184 8 = /dev/rd/c10d1 Second disk, whole disk
2186 248 = /dev/rd/c10d31 32nd disk, whole disk
2188 Partitions are handled as for major 48.
2190 139 block Mylex DAC960 PCI RAID controller; twelfth controller
2191 0 = /dev/rd/c11d0 First disk, whole disk
2192 8 = /dev/rd/c11d1 Second disk, whole disk
2194 248 = /dev/rd/c11d31 32nd disk, whole disk
2196 Partitions are handled as for major 48.
2198 140 block Mylex DAC960 PCI RAID controller; thirteenth controller
2199 0 = /dev/rd/c12d0 First disk, whole disk
2200 8 = /dev/rd/c12d1 Second disk, whole disk
2202 248 = /dev/rd/c12d31 32nd disk, whole disk
2204 Partitions are handled as for major 48.
2206 141 block Mylex DAC960 PCI RAID controller; fourteenth controller
2207 0 = /dev/rd/c13d0 First disk, whole disk
2208 8 = /dev/rd/c13d1 Second disk, whole disk
2210 248 = /dev/rd/c13d31 32nd disk, whole disk
2212 Partitions are handled as for major 48.
2214 142 block Mylex DAC960 PCI RAID controller; fifteenth controller
2215 0 = /dev/rd/c14d0 First disk, whole disk
2216 8 = /dev/rd/c14d1 Second disk, whole disk
2218 248 = /dev/rd/c14d31 32nd disk, whole disk
2220 Partitions are handled as for major 48.
2222 143 block Mylex DAC960 PCI RAID controller; sixteenth controller
2223 0 = /dev/rd/c15d0 First disk, whole disk
2224 8 = /dev/rd/c15d1 Second disk, whole disk
2226 248 = /dev/rd/c15d31 32nd disk, whole disk
2228 Partitions are handled as for major 48.
2230 144 char Encapsulated PPP
2231 0 = /dev/pppox0 First PPP over Ethernet
2233 63 = /dev/pppox63 64th PPP over Ethernet
2235 This is primarily used for ADSL.
2237 The SST 5136-DN DeviceNet interface driver has been
2238 relocated to major 183 due to an unfortunate conflict.
2240 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
2241 0 = mounted device 256
2242 255 = mounted device 511
2244 145 char SAM9407-based soundcard
2246 1 = /dev/sam0_sequencer
2247 2 = /dev/sam0_midi00
2250 6 = /dev/sam0_sndstat
2251 18 = /dev/sam0_midi01
2252 34 = /dev/sam0_midi02
2253 50 = /dev/sam0_midi03
2254 64 = /dev/sam1_mixer
2256 128 = /dev/sam2_mixer
2258 192 = /dev/sam3_mixer
2261 Device functions match OSS, but offer a number of
2262 addons, which are sam9407 specific. OSS can be
2263 operated simultaneously, taking care of the codec.
2265 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
2266 0 = mounted device 512
2267 255 = mounted device 767
2269 146 char SYSTRAM SCRAMNet mirrored-memory network
2270 0 = /dev/scramnet0 First SCRAMNet device
2271 1 = /dev/scramnet1 Second SCRAMNet device
2274 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
2275 0 = mounted device 768
2276 255 = mounted device 1023
2278 147 char Aureal Semiconductor Vortex Audio device
2279 0 = /dev/aureal0 First Aureal Vortex
2280 1 = /dev/aureal1 Second Aureal Vortex
2283 147 block Distributed Replicated Block Device (DRBD)
2284 0 = /dev/drbd0 First DRBD device
2285 1 = /dev/drbd1 Second DRBD device
2288 148 char Technology Concepts serial card
2289 0 = /dev/ttyT0 First TCL port
2290 1 = /dev/ttyT1 Second TCL port
2293 149 char Technology Concepts serial card - alternate devices
2294 0 = /dev/cut0 Callout device for ttyT0
2295 1 = /dev/cut0 Callout device for ttyT1
2298 150 char Real-Time Linux FIFOs
2299 0 = /dev/rtf0 First RTLinux FIFO
2300 1 = /dev/rtf1 Second RTLinux FIFO
2303 151 char DPT I2O SmartRaid V controller
2304 0 = /dev/dpti0 First DPT I2O adapter
2305 1 = /dev/dpti1 Second DPT I2O adapter
2308 152 char EtherDrive Control Device
2309 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive
2310 1 = /dev/etherd/err Monitor errors
2311 2 = /dev/etherd/raw Raw AoE packet monitor
2313 152 block EtherDrive Block Devices
2314 0 = /dev/etherd/0 EtherDrive 0
2316 255 = /dev/etherd/255 EtherDrive 255
2318 153 char SPI Bus Interface (sometimes referred to as MicroWire)
2319 0 = /dev/spi0 First SPI device on the bus
2320 1 = /dev/spi1 Second SPI device on the bus
2322 15 = /dev/spi15 Sixteenth SPI device on the bus
2324 153 block Enhanced Metadisk RAID (EMD) storage units
2325 0 = /dev/emd/0 First unit
2326 1 = /dev/emd/0p1 Partition 1 on First unit
2327 2 = /dev/emd/0p2 Partition 2 on First unit
2329 15 = /dev/emd/0p15 Partition 15 on First unit
2331 16 = /dev/emd/1 Second unit
2332 32 = /dev/emd/2 Third unit
2334 240 = /dev/emd/15 Sixteenth unit
2336 Partitions are handled in the same way as for IDE
2337 disks (see major number 3) except that the limit on
2340 154 char Specialix RIO serial card
2341 0 = /dev/ttySR0 First RIO port
2343 255 = /dev/ttySR255 256th RIO port
2345 155 char Specialix RIO serial card - alternate devices
2346 0 = /dev/cusr0 Callout device for ttySR0
2348 255 = /dev/cusr255 Callout device for ttySR255
2350 156 char Specialix RIO serial card
2351 0 = /dev/ttySR256 257th RIO port
2353 255 = /dev/ttySR511 512th RIO port
2355 157 char Specialix RIO serial card - alternate devices
2356 0 = /dev/cusr256 Callout device for ttySR256
2358 255 = /dev/cusr511 Callout device for ttySR511
2360 158 char Dialogic GammaLink fax driver
2361 0 = /dev/gfax0 GammaLink channel 0
2362 1 = /dev/gfax1 GammaLink channel 1
2369 160 char General Purpose Instrument Bus (GPIB)
2370 0 = /dev/gpib0 First GPIB bus
2371 1 = /dev/gpib1 Second GPIB bus
2374 160 block Carmel 8-port SATA Disks on First Controller
2375 0 = /dev/carmel/0 SATA disk 0 whole disk
2376 1 = /dev/carmel/0p1 SATA disk 0 partition 1
2378 31 = /dev/carmel/0p31 SATA disk 0 partition 31
2380 32 = /dev/carmel/1 SATA disk 1 whole disk
2381 64 = /dev/carmel/2 SATA disk 2 whole disk
2383 224 = /dev/carmel/7 SATA disk 7 whole disk
2385 Partitions are handled in the same way as for IDE
2386 disks (see major number 3) except that the limit on
2389 161 char IrCOMM devices (IrDA serial/parallel emulation)
2390 0 = /dev/ircomm0 First IrCOMM device
2391 1 = /dev/ircomm1 Second IrCOMM device
2393 16 = /dev/irlpt0 First IrLPT device
2394 17 = /dev/irlpt1 Second IrLPT device
2397 161 block Carmel 8-port SATA Disks on Second Controller
2398 0 = /dev/carmel/8 SATA disk 8 whole disk
2399 1 = /dev/carmel/8p1 SATA disk 8 partition 1
2401 31 = /dev/carmel/8p31 SATA disk 8 partition 31
2403 32 = /dev/carmel/9 SATA disk 9 whole disk
2404 64 = /dev/carmel/10 SATA disk 10 whole disk
2406 224 = /dev/carmel/15 SATA disk 15 whole disk
2408 Partitions are handled in the same way as for IDE
2409 disks (see major number 3) except that the limit on
2412 162 char Raw block device interface
2413 0 = /dev/rawctl Raw I/O control device
2414 1 = /dev/raw/raw1 First raw I/O device
2415 2 = /dev/raw/raw2 Second raw I/O device
2417 max minor number of raw device is set by kernel config
2418 MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
2422 164 char Chase Research AT/PCI-Fast serial card
2423 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2425 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2426 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2428 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2429 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2431 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2432 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2434 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2436 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2437 0 = /dev/cuch0 Callout device for ttyCH0
2439 63 = /dev/cuch63 Callout device for ttyCH63
2441 166 char ACM USB modems
2442 0 = /dev/ttyACM0 First ACM modem
2443 1 = /dev/ttyACM1 Second ACM modem
2446 167 char ACM USB modems - alternate devices
2447 0 = /dev/cuacm0 Callout device for ttyACM0
2448 1 = /dev/cuacm1 Callout device for ttyACM1
2451 168 char Eracom CSA7000 PCI encryption adaptor
2452 0 = /dev/ecsa0 First CSA7000
2453 1 = /dev/ecsa1 Second CSA7000
2456 169 char Eracom CSA8000 PCI encryption adaptor
2457 0 = /dev/ecsa8-0 First CSA8000
2458 1 = /dev/ecsa8-1 Second CSA8000
2461 170 char AMI MegaRAC remote access controller
2462 0 = /dev/megarac0 First MegaRAC card
2463 1 = /dev/megarac1 Second MegaRAC card
2466 171 char Reserved for IEEE 1394 (Firewire)
2468 172 char Moxa Intellio serial card
2469 0 = /dev/ttyMX0 First Moxa port
2470 1 = /dev/ttyMX1 Second Moxa port
2472 127 = /dev/ttyMX127 128th Moxa port
2473 128 = /dev/moxactl Moxa control port
2475 173 char Moxa Intellio serial card - alternate devices
2476 0 = /dev/cumx0 Callout device for ttyMX0
2477 1 = /dev/cumx1 Callout device for ttyMX1
2479 127 = /dev/cumx127 Callout device for ttyMX127
2481 174 char SmartIO serial card
2482 0 = /dev/ttySI0 First SmartIO port
2483 1 = /dev/ttySI1 Second SmartIO port
2486 175 char SmartIO serial card - alternate devices
2487 0 = /dev/cusi0 Callout device for ttySI0
2488 1 = /dev/cusi1 Callout device for ttySI1
2491 176 char nCipher nFast PCI crypto accelerator
2492 0 = /dev/nfastpci0 First nFast PCI device
2493 1 = /dev/nfastpci1 First nFast PCI device
2496 177 char TI PCILynx memory spaces
2497 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2499 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2500 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2502 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2503 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2505 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2507 178 char Giganet cLAN1xxx virtual interface adapter
2508 0 = /dev/clanvi0 First cLAN adapter
2509 1 = /dev/clanvi1 Second cLAN adapter
2512 179 block MMC block devices
2513 0 = /dev/mmcblk0 First SD/MMC card
2514 1 = /dev/mmcblk0p1 First partition on first MMC card
2515 8 = /dev/mmcblk1 Second SD/MMC card
2518 The start of next SD/MMC card can be configured with
2519 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe
2520 time using the mmcblk.perdev_minors option. That would
2521 bump the offset between each card to be the configured
2522 value instead of the default 8.
2524 179 char CCube DVXChip-based PCI products
2525 0 = /dev/dvxirq0 First DVX device
2526 1 = /dev/dvxirq1 Second DVX device
2529 180 char USB devices
2530 0 = /dev/usb/lp0 First USB printer
2532 15 = /dev/usb/lp15 16th USB printer
2533 48 = /dev/usb/scanner0 First USB scanner
2535 63 = /dev/usb/scanner15 16th USB scanner
2536 64 = /dev/usb/rio500 Diamond Rio 500
2537 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de)
2538 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD)
2539 96 = /dev/usb/hiddev0 1st USB HID device
2541 111 = /dev/usb/hiddev15 16th USB HID device
2542 112 = /dev/usb/auer0 1st auerswald ISDN device
2544 127 = /dev/usb/auer15 16th auerswald ISDN device
2545 128 = /dev/usb/brlvgr0 First Braille Voyager device
2547 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device
2548 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device
2549 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device
2551 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device
2552 144 = /dev/usb/lcd USB LCD device
2553 160 = /dev/usb/legousbtower0 1st USB Legotower device
2555 175 = /dev/usb/legousbtower15 16th USB Legotower device
2556 176 = /dev/usb/usbtmc1 First USB TMC device
2558 191 = /dev/usb/usbtmc16 16th USB TMC device
2559 192 = /dev/usb/yurex1 First USB Yurex device
2561 209 = /dev/usb/yurex16 16th USB Yurex device
2563 180 block USB block devices
2564 0 = /dev/uba First USB block device
2565 8 = /dev/ubb Second USB block device
2566 16 = /dev/ubc Third USB block device
2569 181 char Conrad Electronic parallel port radio clocks
2570 0 = /dev/pcfclock0 First Conrad radio clock
2571 1 = /dev/pcfclock1 Second Conrad radio clock
2574 182 char Picture Elements THR2 binarizer
2575 0 = /dev/pethr0 First THR2 board
2576 1 = /dev/pethr1 Second THR2 board
2579 183 char SST 5136-DN DeviceNet interface
2580 0 = /dev/ss5136dn0 First DeviceNet interface
2581 1 = /dev/ss5136dn1 Second DeviceNet interface
2584 This device used to be assigned to major number 144.
2585 It had to be moved due to an unfortunate conflict.
2587 184 char Picture Elements' video simulator/sender
2588 0 = /dev/pevss0 First sender board
2589 1 = /dev/pevss1 Second sender board
2592 185 char InterMezzo high availability file system
2593 0 = /dev/intermezzo0 First cache manager
2594 1 = /dev/intermezzo1 Second cache manager
2597 See http://web.archive.org/web/20080115195241/
2598 http://inter-mezzo.org/index.html
2600 186 char Object-based storage control device
2601 0 = /dev/obd0 First obd control device
2602 1 = /dev/obd1 Second obd control device
2605 See ftp://ftp.lustre.org/pub/obd for code and information.
2607 187 char DESkey hardware encryption device
2608 0 = /dev/deskey0 First DES key
2609 1 = /dev/deskey1 Second DES key
2612 188 char USB serial converters
2613 0 = /dev/ttyUSB0 First USB serial converter
2614 1 = /dev/ttyUSB1 Second USB serial converter
2617 189 char USB serial converters - alternate devices
2618 0 = /dev/cuusb0 Callout device for ttyUSB0
2619 1 = /dev/cuusb1 Callout device for ttyUSB1
2622 190 char Kansas City tracker/tuner card
2623 0 = /dev/kctt0 First KCT/T card
2624 1 = /dev/kctt1 Second KCT/T card
2627 191 char Reserved for PCMCIA
2629 192 char Kernel profiling interface
2630 0 = /dev/profile Profiling control device
2631 1 = /dev/profile0 Profiling device for CPU 0
2632 2 = /dev/profile1 Profiling device for CPU 1
2635 193 char Kernel event-tracing interface
2636 0 = /dev/trace Tracing control device
2637 1 = /dev/trace0 Tracing device for CPU 0
2638 2 = /dev/trace1 Tracing device for CPU 1
2641 194 char linVideoStreams (LINVS)
2642 0 = /dev/mvideo/status0 Video compression status
2643 1 = /dev/mvideo/stream0 Video stream
2644 2 = /dev/mvideo/frame0 Single compressed frame
2645 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2646 4 = /dev/mvideo/codec0 Direct codec access
2647 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2649 16 = /dev/mvideo/status1 Second device
2651 32 = /dev/mvideo/status2 Third device
2654 240 = /dev/mvideo/status15 16th device
2657 195 char Nvidia graphics devices
2658 0 = /dev/nvidia0 First Nvidia card
2659 1 = /dev/nvidia1 Second Nvidia card
2661 255 = /dev/nvidiactl Nvidia card control device
2663 196 char Tormenta T1 card
2664 0 = /dev/tor/0 Master control channel for all cards
2665 1 = /dev/tor/1 First DS0
2666 2 = /dev/tor/2 Second DS0
2668 48 = /dev/tor/48 48th DS0
2669 49 = /dev/tor/49 First pseudo-channel
2670 50 = /dev/tor/50 Second pseudo-channel
2673 197 char OpenTNF tracing facility
2674 0 = /dev/tnf/t0 Trace 0 data extraction
2675 1 = /dev/tnf/t1 Trace 1 data extraction
2677 128 = /dev/tnf/status Tracing facility status
2678 130 = /dev/tnf/trace Tracing device
2680 198 char Total Impact TPMP2 quad coprocessor PCI card
2681 0 = /dev/tpmp2/0 First card
2682 1 = /dev/tpmp2/1 Second card
2685 199 char Veritas volume manager (VxVM) volumes
2686 0 = /dev/vx/rdsk/*/* First volume
2687 1 = /dev/vx/rdsk/*/* Second volume
2690 199 block Veritas volume manager (VxVM) volumes
2691 0 = /dev/vx/dsk/*/* First volume
2692 1 = /dev/vx/dsk/*/* Second volume
2695 The namespace in these directories is maintained by
2696 the user space VxVM software.
2698 200 char Veritas VxVM configuration interface
2699 0 = /dev/vx/config Configuration access node
2700 1 = /dev/vx/trace Volume i/o trace access node
2701 2 = /dev/vx/iod Volume i/o daemon access node
2702 3 = /dev/vx/info Volume information access node
2703 4 = /dev/vx/task Volume tasks access node
2704 5 = /dev/vx/taskmon Volume tasks monitor daemon
2706 201 char Veritas VxVM dynamic multipathing driver
2707 0 = /dev/vx/rdmp/* First multipath device
2708 1 = /dev/vx/rdmp/* Second multipath device
2710 201 block Veritas VxVM dynamic multipathing driver
2711 0 = /dev/vx/dmp/* First multipath device
2712 1 = /dev/vx/dmp/* Second multipath device
2715 The namespace in these directories is maintained by
2716 the user space VxVM software.
2718 202 char CPU model-specific registers
2719 0 = /dev/cpu/0/msr MSRs on CPU 0
2720 1 = /dev/cpu/1/msr MSRs on CPU 1
2723 202 block Xen Virtual Block Device
2724 0 = /dev/xvda First Xen VBD whole disk
2725 16 = /dev/xvdb Second Xen VBD whole disk
2726 32 = /dev/xvdc Third Xen VBD whole disk
2728 240 = /dev/xvdp Sixteenth Xen VBD whole disk
2730 Partitions are handled in the same way as for IDE
2731 disks (see major number 3) except that the limit on
2734 203 char CPU CPUID information
2735 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2736 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2739 204 char Low-density serial ports
2740 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2741 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2742 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2743 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2744 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2745 5 = /dev/ttySA0 StrongARM builtin serial port 0
2746 6 = /dev/ttySA1 StrongARM builtin serial port 1
2747 7 = /dev/ttySA2 StrongARM builtin serial port 2
2748 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2749 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2750 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2751 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2752 12 = /dev/ttyFW0 Firmware console - port 0
2753 13 = /dev/ttyFW1 Firmware console - port 1
2754 14 = /dev/ttyFW2 Firmware console - port 2
2755 15 = /dev/ttyFW3 Firmware console - port 3
2756 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2758 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2759 32 = /dev/ttyDB0 DataBooster serial port 0
2761 39 = /dev/ttyDB7 DataBooster serial port 7
2762 40 = /dev/ttySG0 SGI Altix console port
2763 41 = /dev/ttySMX0 Motorola i.MX - port 0
2764 42 = /dev/ttySMX1 Motorola i.MX - port 1
2765 43 = /dev/ttySMX2 Motorola i.MX - port 2
2766 44 = /dev/ttyMM0 Marvell MPSC - port 0
2767 45 = /dev/ttyMM1 Marvell MPSC - port 1
2768 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0
2770 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
2771 50 = /dev/ttyIOC0 Altix serial card
2773 81 = /dev/ttyIOC31 Altix serial card
2774 82 = /dev/ttyVR0 NEC VR4100 series SIU
2775 83 = /dev/ttyVR1 NEC VR4100 series DSIU
2776 84 = /dev/ttyIOC84 Altix ioc4 serial card
2778 115 = /dev/ttyIOC115 Altix ioc4 serial card
2779 116 = /dev/ttySIOC0 Altix ioc3 serial card
2781 147 = /dev/ttySIOC31 Altix ioc3 serial card
2782 148 = /dev/ttyPSC0 PPC PSC - port 0
2784 153 = /dev/ttyPSC5 PPC PSC - port 5
2785 154 = /dev/ttyAT0 ATMEL serial port 0
2787 169 = /dev/ttyAT15 ATMEL serial port 15
2788 170 = /dev/ttyNX0 Hilscher netX serial port 0
2790 185 = /dev/ttyNX15 Hilscher netX serial port 15
2791 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
2792 187 = /dev/ttyUL0 Xilinx uartlite - port 0
2794 190 = /dev/ttyUL3 Xilinx uartlite - port 3
2795 191 = /dev/xvc0 Xen virtual console - port 0
2796 192 = /dev/ttyPZ0 pmac_zilog - port 0
2798 195 = /dev/ttyPZ3 pmac_zilog - port 3
2799 196 = /dev/ttyTX0 TX39/49 serial port 0
2801 204 = /dev/ttyTX7 TX39/49 serial port 7
2802 205 = /dev/ttySC0 SC26xx serial port 0
2803 206 = /dev/ttySC1 SC26xx serial port 1
2804 207 = /dev/ttySC2 SC26xx serial port 2
2805 208 = /dev/ttySC3 SC26xx serial port 3
2806 209 = /dev/ttyMAX0 MAX3100 serial port 0
2807 210 = /dev/ttyMAX1 MAX3100 serial port 1
2808 211 = /dev/ttyMAX2 MAX3100 serial port 2
2809 212 = /dev/ttyMAX3 MAX3100 serial port 3
2811 205 char Low-density serial ports (alternate device)
2812 0 = /dev/culu0 Callout device for ttyLU0
2813 1 = /dev/culu1 Callout device for ttyLU1
2814 2 = /dev/culu2 Callout device for ttyLU2
2815 3 = /dev/culu3 Callout device for ttyLU3
2816 4 = /dev/cufb0 Callout device for ttyFB0
2817 5 = /dev/cusa0 Callout device for ttySA0
2818 6 = /dev/cusa1 Callout device for ttySA1
2819 7 = /dev/cusa2 Callout device for ttySA2
2820 8 = /dev/cusc0 Callout device for ttySC0
2821 9 = /dev/cusc1 Callout device for ttySC1
2822 10 = /dev/cusc2 Callout device for ttySC2
2823 11 = /dev/cusc3 Callout device for ttySC3
2824 12 = /dev/cufw0 Callout device for ttyFW0
2825 13 = /dev/cufw1 Callout device for ttyFW1
2826 14 = /dev/cufw2 Callout device for ttyFW2
2827 15 = /dev/cufw3 Callout device for ttyFW3
2828 16 = /dev/cuam0 Callout device for ttyAM0
2830 31 = /dev/cuam15 Callout device for ttyAM15
2831 32 = /dev/cudb0 Callout device for ttyDB0
2833 39 = /dev/cudb7 Callout device for ttyDB7
2834 40 = /dev/cusg0 Callout device for ttySG0
2835 41 = /dev/ttycusmx0 Callout device for ttySMX0
2836 42 = /dev/ttycusmx1 Callout device for ttySMX1
2837 43 = /dev/ttycusmx2 Callout device for ttySMX2
2838 46 = /dev/cucpm0 Callout device for ttyCPM0
2840 49 = /dev/cucpm5 Callout device for ttyCPM5
2841 50 = /dev/cuioc40 Callout device for ttyIOC40
2843 81 = /dev/cuioc431 Callout device for ttyIOC431
2844 82 = /dev/cuvr0 Callout device for ttyVR0
2845 83 = /dev/cuvr1 Callout device for ttyVR1
2847 206 char OnStream SC-x0 tape devices
2848 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2849 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2851 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2852 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2854 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2855 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2857 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2858 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2860 128 = /dev/nosst0 No rewind version of /dev/osst0
2861 129 = /dev/nosst1 No rewind version of /dev/osst1
2863 160 = /dev/nosst0l No rewind version of /dev/osst0l
2864 161 = /dev/nosst1l No rewind version of /dev/osst1l
2866 192 = /dev/nosst0m No rewind version of /dev/osst0m
2867 193 = /dev/nosst1m No rewind version of /dev/osst1m
2869 224 = /dev/nosst0a No rewind version of /dev/osst0a
2870 225 = /dev/nosst1a No rewind version of /dev/osst1a
2873 The OnStream SC-x0 SCSI tapes do not support the
2874 standard SCSI SASD command set and therefore need
2875 their own driver "osst". Note that the IDE, USB (and
2876 maybe ParPort) versions may be driven via ide-scsi or
2877 usb-storage SCSI emulation and this osst device and
2878 driver as well. The ADR-x0 drives are QIC-157
2879 compliant and don't need osst.
2881 207 char Compaq ProLiant health feature indicate
2882 0 = /dev/cpqhealth/cpqw Redirector interface
2883 1 = /dev/cpqhealth/crom EISA CROM
2884 2 = /dev/cpqhealth/cdt Data Table
2885 3 = /dev/cpqhealth/cevt Event Log
2886 4 = /dev/cpqhealth/casr Automatic Server Recovery
2887 5 = /dev/cpqhealth/cecc ECC Memory
2888 6 = /dev/cpqhealth/cmca Machine Check Architecture
2889 7 = /dev/cpqhealth/ccsm Deprecated CDT
2890 8 = /dev/cpqhealth/cnmi NMI Handling
2891 9 = /dev/cpqhealth/css Sideshow Management
2892 10 = /dev/cpqhealth/cram CMOS interface
2893 11 = /dev/cpqhealth/cpci PCI IRQ interface
2895 208 char User space serial ports
2896 0 = /dev/ttyU0 First user space serial port
2897 1 = /dev/ttyU1 Second user space serial port
2900 209 char User space serial ports (alternate devices)
2901 0 = /dev/cuu0 Callout device for ttyU0
2902 1 = /dev/cuu1 Callout device for ttyU1
2905 210 char SBE, Inc. sync/async serial card
2906 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2907 1 = /dev/sbei/dld0 Download device for board 0
2908 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2909 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2910 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2911 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2912 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2913 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2914 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2915 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2916 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2917 11 = /dev/sbei/dld1 Download device for board 1
2918 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2919 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2920 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2921 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2922 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2923 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2924 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2925 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2928 Yes, each board is really spaced 10 (decimal) apart.
2930 211 char Addinum CPCI1500 digital I/O card
2931 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2932 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2935 212 char LinuxTV.org DVB driver subsystem
2936 0 = /dev/dvb/adapter0/video0 first video decoder of first card
2937 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card
2938 2 = /dev/dvb/adapter0/sec0 (obsolete/unused)
2939 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card
2940 4 = /dev/dvb/adapter0/demux0 first demux device of first card
2941 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card
2942 6 = /dev/dvb/adapter0/ca0 first common access port of first card
2943 7 = /dev/dvb/adapter0/net0 first network device of first card
2944 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card
2945 9 = /dev/dvb/adapter0/video1 second video decoder of first card
2947 64 = /dev/dvb/adapter1/video0 first video decoder of second card
2949 128 = /dev/dvb/adapter2/video0 first video decoder of third card
2951 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card
2953 216 char Bluetooth RFCOMM TTY devices
2954 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device
2955 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device
2958 217 char Bluetooth RFCOMM TTY devices (alternate devices)
2959 0 = /dev/curf0 Callout device for rfcomm0
2960 1 = /dev/curf1 Callout device for rfcomm1
2963 218 char The Logical Company bus Unibus/Qbus adapters
2964 0 = /dev/logicalco/bci/0 First bus adapter
2965 1 = /dev/logicalco/bci/1 First bus adapter
2968 219 char The Logical Company DCI-1300 digital I/O card
2969 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2970 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2973 220 char Myricom Myrinet "GM" board
2974 0 = /dev/myricom/gm0 First Myrinet GM board
2975 1 = /dev/myricom/gmp0 First board "root access"
2976 2 = /dev/myricom/gm1 Second Myrinet GM board
2977 3 = /dev/myricom/gmp1 Second board "root access"
2981 0 = /dev/bus/vme/m0 First master image
2982 1 = /dev/bus/vme/m1 Second master image
2983 2 = /dev/bus/vme/m2 Third master image
2984 3 = /dev/bus/vme/m3 Fourth master image
2985 4 = /dev/bus/vme/s0 First slave image
2986 5 = /dev/bus/vme/s1 Second slave image
2987 6 = /dev/bus/vme/s2 Third slave image
2988 7 = /dev/bus/vme/s3 Fourth slave image
2989 8 = /dev/bus/vme/ctl Control
2991 It is expected that all VME bus drivers will use the
2992 same interface. For interface documentation see
2993 http://www.vmelinux.org/.
2995 224 char A2232 serial card
2996 0 = /dev/ttyY0 First A2232 port
2997 1 = /dev/ttyY1 Second A2232 port
3000 225 char A2232 serial card (alternate devices)
3001 0 = /dev/cuy0 Callout device for ttyY0
3002 1 = /dev/cuy1 Callout device for ttyY1
3005 226 char Direct Rendering Infrastructure (DRI)
3006 0 = /dev/dri/card0 First graphics card
3007 1 = /dev/dri/card1 Second graphics card
3010 227 char IBM 3270 terminal Unix tty access
3011 1 = /dev/3270/tty1 First 3270 terminal
3012 2 = /dev/3270/tty2 Seconds 3270 terminal
3015 228 char IBM 3270 terminal block-mode access
3016 0 = /dev/3270/tub Controlling interface
3017 1 = /dev/3270/tub1 First 3270 terminal
3018 2 = /dev/3270/tub2 Second 3270 terminal
3021 229 char IBM iSeries/pSeries virtual console
3022 0 = /dev/hvc0 First console port
3023 1 = /dev/hvc1 Second console port
3026 230 char IBM iSeries virtual tape
3027 0 = /dev/iseries/vt0 First virtual tape, mode 0
3028 1 = /dev/iseries/vt1 Second virtual tape, mode 0
3030 32 = /dev/iseries/vt0l First virtual tape, mode 1
3031 33 = /dev/iseries/vt1l Second virtual tape, mode 1
3033 64 = /dev/iseries/vt0m First virtual tape, mode 2
3034 65 = /dev/iseries/vt1m Second virtual tape, mode 2
3036 96 = /dev/iseries/vt0a First virtual tape, mode 3
3037 97 = /dev/iseries/vt1a Second virtual tape, mode 3
3039 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind
3040 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind
3042 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind
3043 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind
3045 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind
3046 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind
3048 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind
3049 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind
3052 "No rewind" refers to the omission of the default
3053 automatic rewind on device close. The MTREW or MTOFFL
3054 ioctl()'s can be used to rewind the tape regardless of
3055 the device used to access it.
3058 0 = /dev/infiniband/umad0
3059 1 = /dev/infiniband/umad1
3061 63 = /dev/infiniband/umad63 63rd InfiniBandMad device
3062 64 = /dev/infiniband/issm0 First InfiniBand IsSM device
3063 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device
3065 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device
3066 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device
3067 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device
3069 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device
3071 232 char Biometric Devices
3072 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device
3073 1 = /dev/biometric/sensor0/iris first iris sensor on first device
3074 2 = /dev/biometric/sensor0/retina first retina sensor on first device
3075 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device
3076 4 = /dev/biometric/sensor0/facial first facial sensor on first device
3077 5 = /dev/biometric/sensor0/hand first hand sensor on first device
3079 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device
3081 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device
3084 233 char PathScale InfiniPath interconnect
3085 0 = /dev/ipath Primary device for programs (any unit)
3086 1 = /dev/ipath0 Access specifically to unit 0
3087 2 = /dev/ipath1 Access specifically to unit 1
3089 4 = /dev/ipath3 Access specifically to unit 3
3090 129 = /dev/ipath_sma Device used by Subnet Management Agent
3091 130 = /dev/ipath_diag Device used by diagnostics programs
3095 240-254 char LOCAL/EXPERIMENTAL USE
3097 240-254 block LOCAL/EXPERIMENTAL USE
3098 Allocated for local/experimental use. For devices not
3099 assigned official numbers, these ranges should be
3100 used in order to avoid conflicting with future assignments.
3106 This major is reserved to assist the expansion to a
3107 larger number space. No device nodes with this major
3108 should ever be created on the filesystem.
3109 (This is probably not true anymore, but I'll leave it
3112 ---LARGE MAJORS!!!!!---
3114 256 char Equinox SST multi-port serial boards
3115 0 = /dev/ttyEQ0 First serial port on first Equinox SST board
3116 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board
3117 128 = /dev/ttyEQ128 First serial port on second Equinox SST board
3119 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board
3121 256 block Resident Flash Disk Flash Translation Layer
3122 0 = /dev/rfda First RFD FTL layer
3123 16 = /dev/rfdb Second RFD FTL layer
3125 240 = /dev/rfdp 16th RFD FTL layer
3127 257 char Phoenix Technologies Cryptographic Services Driver
3128 0 = /dev/ptlsec Crypto Services Driver
3130 257 block SSFDC Flash Translation Layer filesystem
3131 0 = /dev/ssfdca First SSFDC layer
3132 8 = /dev/ssfdcb Second SSFDC layer
3133 16 = /dev/ssfdcc Third SSFDC layer
3134 24 = /dev/ssfdcd 4th SSFDC layer
3135 32 = /dev/ssfdce 5th SSFDC layer
3136 40 = /dev/ssfdcf 6th SSFDC layer
3137 48 = /dev/ssfdcg 7th SSFDC layer
3138 56 = /dev/ssfdch 8th SSFDC layer
3140 258 block ROM/Flash read-only translation layer
3141 0 = /dev/blockrom0 First ROM card's translation layer interface
3142 1 = /dev/blockrom1 Second ROM card's translation layer interface
3145 259 block Block Extended Major
3146 Used dynamically to hold additional partition minor
3147 numbers and allow large numbers of partitions per device
3149 259 char FPGA configuration interfaces
3150 0 = /dev/icap0 First Xilinx internal configuration
3151 1 = /dev/icap1 Second Xilinx internal configuration
3153 260 char OSD (Object-based-device) SCSI Device
3154 0 = /dev/osd0 First OSD Device
3155 1 = /dev/osd1 Second OSD Device
3157 255 = /dev/osd255 256th OSD Device
3159 **** ADDITIONAL /dev DIRECTORY ENTRIES
3161 This section details additional entries that should or may exist in
3162 the /dev directory. It is preferred that symbolic links use the same
3163 form (absolute or relative) as is indicated here. Links are
3164 classified as "hard" or "symbolic" depending on the preferred type of
3165 link; if possible, the indicated type of link should be used.
3170 These links should exist on all systems:
3172 /dev/fd /proc/self/fd symbolic File descriptors
3173 /dev/stdin fd/0 symbolic stdin file descriptor
3174 /dev/stdout fd/1 symbolic stdout file descriptor
3175 /dev/stderr fd/2 symbolic stderr file descriptor
3176 /dev/nfsd socksys symbolic Required by iBCS-2
3177 /dev/X0R null symbolic Required by iBCS-2
3179 Note: /dev/X0R is <letter X>-<digit 0>-<letter R>.
3183 It is recommended that these links exist on all systems:
3185 /dev/core /proc/kcore symbolic Backward compatibility
3186 /dev/ramdisk ram0 symbolic Backward compatibility
3187 /dev/ftape qft0 symbolic Backward compatibility
3188 /dev/bttv0 video0 symbolic Backward compatibility
3189 /dev/radio radio0 symbolic Backward compatibility
3190 /dev/i2o* /dev/i2o/* symbolic Backward compatibility
3191 /dev/scd? sr? hard Alternate SCSI CD-ROM name
3193 Locally defined links
3195 The following links may be established locally to conform to the
3196 configuration of the system. This is merely a tabulation of existing
3197 practice, and does not constitute a recommendation. However, if they
3198 exist, they should have the following uses.
3200 /dev/mouse mouse port symbolic Current mouse device
3201 /dev/tape tape device symbolic Current tape device
3202 /dev/cdrom CD-ROM device symbolic Current CD-ROM device
3203 /dev/cdwriter CD-writer symbolic Current CD-writer device
3204 /dev/scanner scanner symbolic Current scanner device
3205 /dev/modem modem port symbolic Current dialout device
3206 /dev/root root device symbolic Current root filesystem
3207 /dev/swap swap device symbolic Current swap device
3209 /dev/modem should not be used for a modem which supports dialin as
3210 well as dialout, as it tends to cause lock file problems. If it
3211 exists, /dev/modem should point to the appropriate primary TTY device
3212 (the use of the alternate callout devices is deprecated).
3214 For SCSI devices, /dev/tape and /dev/cdrom should point to the
3215 ``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas
3216 /dev/cdwriter and /dev/scanner should point to the appropriate generic
3217 SCSI devices (/dev/sg*).
3219 /dev/mouse may point to a primary serial TTY device, a hardware mouse
3220 device, or a socket for a mouse driver program (e.g. /dev/gpmdata).
3224 Non-transient sockets and named pipes may exist in /dev. Common entries are:
3226 /dev/printer socket lpd local socket
3227 /dev/log socket syslog local socket
3228 /dev/gpmdata socket gpm mouse multiplexer
3232 The following names are reserved for mounting special filesystems
3233 under /dev. These special filesystems provide kernel interfaces that
3234 cannot be provided with standard device nodes.
3236 /dev/pts devpts PTY slave filesystem
3237 /dev/shm tmpfs POSIX shared memory maintenance access
3239 **** TERMINAL DEVICES
3241 Terminal, or TTY devices are a special class of character devices. A
3242 terminal device is any device that could act as a controlling terminal
3243 for a session; this includes virtual consoles, serial ports, and
3244 pseudoterminals (PTYs).
3246 All terminal devices share a common set of capabilities known as line
3247 disciplines; these include the common terminal line discipline as well
3248 as SLIP and PPP modes.
3250 All terminal devices are named similarly; this section explains the
3251 naming and use of the various types of TTYs. Note that the naming
3252 conventions include several historical warts; some of these are
3253 Linux-specific, some were inherited from other systems, and some
3254 reflect Linux outgrowing a borrowed convention.
3256 A hash mark (#) in a device name is used here to indicate a decimal
3257 number without leading zeroes.
3259 Virtual consoles and the console device
3261 Virtual consoles are full-screen terminal displays on the system video
3262 monitor. Virtual consoles are named /dev/tty#, with numbering
3263 starting at /dev/tty1; /dev/tty0 is the current virtual console.
3264 /dev/tty0 is the device that should be used to access the system video
3265 card on those architectures for which the frame buffer devices
3266 (/dev/fb*) are not applicable. Do not use /dev/console
3269 The console device, /dev/console, is the device to which system
3270 messages should be sent, and on which logins should be permitted in
3271 single-user mode. Starting with Linux 2.1.71, /dev/console is managed
3272 by the kernel; for previous versions it should be a symbolic link to
3273 either /dev/tty0, a specific virtual console such as /dev/tty1, or to
3274 a serial port primary (tty*, not cu*) device, depending on the
3275 configuration of the system.
3279 Serial ports are RS-232 serial ports and any device which simulates
3280 one, either in hardware (such as internal modems) or in software (such
3281 as the ISDN driver.) Under Linux, each serial ports has two device
3282 names, the primary or callin device and the alternate or callout one.
3283 Each kind of device is indicated by a different letter. For any
3284 letter X, the names of the devices are /dev/ttyX# and /dev/cux#,
3285 respectively; for historical reasons, /dev/ttyS# and /dev/ttyC#
3286 correspond to /dev/cua# and /dev/cub#. In the future, it should be
3287 expected that multiple letters will be used; all letters will be upper
3288 case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the
3289 "cu" device (e.g. /dev/cudp#).
3291 The names /dev/ttyQ# and /dev/cuq# are reserved for local use.
3293 The alternate devices provide for kernel-based exclusion and somewhat
3294 different defaults than the primary devices. Their main purpose is to
3295 allow the use of serial ports with programs with no inherent or broken
3296 support for serial ports. Their use is deprecated, and they may be
3297 removed from a future version of Linux.
3299 Arbitration of serial ports is provided by the use of lock files with
3300 the names /var/lock/LCK..ttyX#. The contents of the lock file should
3301 be the PID of the locking process as an ASCII number.
3303 It is common practice to install links such as /dev/modem
3304 which point to serial ports. In order to ensure proper locking in the
3305 presence of these links, it is recommended that software chase
3306 symlinks and lock all possible names; additionally, it is recommended
3307 that a lock file be installed with the corresponding alternate
3308 device. In order to avoid deadlocks, it is recommended that the locks
3309 are acquired in the following order, and released in the reverse:
3311 1. The symbolic link name, if any (/var/lock/LCK..modem)
3312 2. The "tty" name (/var/lock/LCK..ttyS2)
3313 3. The alternate device name (/var/lock/LCK..cua2)
3315 In the case of nested symbolic links, the lock files should be
3316 installed in the order the symlinks are resolved.
3318 Under no circumstances should an application hold a lock while waiting
3319 for another to be released. In addition, applications which attempt
3320 to create lock files for the corresponding alternate device names
3321 should take into account the possibility of being used on a non-serial
3322 port TTY, for which no alternate device would exist.
3324 Pseudoterminals (PTYs)
3326 Pseudoterminals, or PTYs, are used to create login sessions or provide
3327 other capabilities requiring a TTY line discipline (including SLIP or
3328 PPP capability) to arbitrary data-generation processes. Each PTY has
3329 a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named
3330 /dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by
3331 allowing each master side to be opened only once.
3333 Once the master side has been opened, the corresponding slave device
3334 can be used in the same manner as any TTY device. The master and
3335 slave devices are connected by the kernel, generating the equivalent
3336 of a bidirectional pipe with TTY capabilities.
3338 Recent versions of the Linux kernels and GNU libc contain support for
3339 the System V/Unix98 naming scheme for PTYs, which assigns a common
3340 device, /dev/ptmx, to all the masters (opening it will automatically
3341 give you a previously unassigned PTY) and a subdirectory, /dev/pts,
3342 for the slaves; the slaves are named with decimal integers (/dev/pts/#
3343 in our notation). This removes the problem of exhausting the
3344 namespace and enables the kernel to automatically create the device
3345 nodes for the slaves on demand using the "devpts" filesystem.
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