2 Linux allocated devices (4.x+ version)
3 ======================================
5 This list is the Linux Device List, the official registry of allocated
6 device numbers and ``/dev`` directory nodes for the Linux operating
9 The LaTeX version of this document is no longer maintained, nor is
10 the document that used to reside at lanana.org. This version in the
11 mainline Linux kernel is the master document. Updates shall be sent
12 as patches to the kernel maintainers (see the
13 :ref:`Documentation/process/submitting-patches.rst <submittingpatches>` document).
14 Specifically explore the sections titled "CHAR and MISC DRIVERS", and
15 "BLOCK LAYER" in the MAINTAINERS file to find the right maintainers
16 to involve for character and block devices.
18 This document is included by reference into the Filesystem Hierarchy
19 Standard (FHS). The FHS is available from http://www.pathname.com/fhs/.
21 Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga
22 platform only. Allocations marked (68k/Atari) apply to Linux/68k on
23 the Atari platform only.
25 This document is in the public domain. The authors requests, however,
26 that semantically altered versions are not distributed without
27 permission of the authors, assuming the authors can be contacted without
28 an unreasonable effort.
33 DEVICE DRIVERS AUTHORS PLEASE READ THIS
35 Linux now has extensive support for dynamic allocation of device numbering
36 and can use ``sysfs`` and ``udev`` (``systemd``) to handle the naming needs.
37 There are still some exceptions in the serial and boot device area. Before
38 asking for a device number make sure you actually need one.
40 To have a major number allocated, or a minor number in situations
41 where that applies (e.g. busmice), please submit a patch and send to
42 the authors as indicated above.
44 Keep the description of the device *in the same format
45 as this list*. The reason for this is that it is the only way we have
46 found to ensure we have all the requisite information to publish your
47 device and avoid conflicts.
49 Finally, sometimes we have to play "namespace police." Please don't be
50 offended. We often get submissions for ``/dev`` names that would be bound
51 to cause conflicts down the road. We are trying to avoid getting in a
52 situation where we would have to suffer an incompatible forward
53 change. Therefore, please consult with us **before** you make your
54 device names and numbers in any way public, at least to the point
55 where it would be at all difficult to get them changed.
57 Your cooperation is appreciated.
61 0 Unnamed devices (e.g. non-device mounts)
62 0 = reserved as null device number
63 See block major 144, 145, 146 for expansion areas.
66 1 = /dev/mem Physical memory access
67 2 = /dev/kmem Kernel virtual memory access
68 3 = /dev/null Null device
69 4 = /dev/port I/O port access
70 5 = /dev/zero Null byte source
71 6 = /dev/core OBSOLETE - replaced by /proc/kcore
72 7 = /dev/full Returns ENOSPC on write
73 8 = /dev/random Nondeterministic random number gen.
74 9 = /dev/urandom Faster, less secure random number gen.
75 10 = /dev/aio Asynchronous I/O notification interface
76 11 = /dev/kmsg Writes to this come out as printk's, reads
77 export the buffered printk records.
78 12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore
81 0 = /dev/ram0 First RAM disk
82 1 = /dev/ram1 Second RAM disk
84 250 = /dev/initrd Initial RAM disk
86 Older kernels had /dev/ramdisk (1, 1) here.
87 /dev/initrd refers to a RAM disk which was preloaded
88 by the boot loader; newer kernels use /dev/ram0 for
91 2 char Pseudo-TTY masters
92 0 = /dev/ptyp0 First PTY master
93 1 = /dev/ptyp1 Second PTY master
95 255 = /dev/ptyef 256th PTY master
97 Pseudo-tty's are named as follows:
98 * Masters are "pty", slaves are "tty";
99 * the fourth letter is one of pqrstuvwxyzabcde indicating
100 the 1st through 16th series of 16 pseudo-ttys each, and
101 * the fifth letter is one of 0123456789abcdef indicating
102 the position within the series.
104 These are the old-style (BSD) PTY devices; Unix98
105 devices are on major 128 and above and use the PTY
106 master multiplex (/dev/ptmx) to acquire a PTY on
110 0 = /dev/fd0 Controller 0, drive 0, autodetect
111 1 = /dev/fd1 Controller 0, drive 1, autodetect
112 2 = /dev/fd2 Controller 0, drive 2, autodetect
113 3 = /dev/fd3 Controller 0, drive 3, autodetect
114 128 = /dev/fd4 Controller 1, drive 0, autodetect
115 129 = /dev/fd5 Controller 1, drive 1, autodetect
116 130 = /dev/fd6 Controller 1, drive 2, autodetect
117 131 = /dev/fd7 Controller 1, drive 3, autodetect
119 To specify format, add to the autodetect device number:
120 0 = /dev/fd? Autodetect format
121 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
122 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
123 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
124 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
125 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
126 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
127 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
128 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
129 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
130 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
131 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
133 12 = /dev/fd?u360 3.5" 360K Double Density(2)
134 16 = /dev/fd?u720 3.5" 720K Double Density(1)
135 120 = /dev/fd?u800 3.5" 800K Double Density(2)
136 52 = /dev/fd?u820 3.5" 820K Double Density
137 68 = /dev/fd?u830 3.5" 830K Double Density
138 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
139 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
140 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
141 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
142 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
143 60 = /dev/fd?u1722 3.5" 1722K High Density
144 76 = /dev/fd?u1743 3.5" 1743K High Density
145 96 = /dev/fd?u1760 3.5" 1760K High Density
146 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
147 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
148 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
149 104 = /dev/fd?u3200 3.5" 3200K Extra Density
150 108 = /dev/fd?u3520 3.5" 3520K Extra Density
151 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
153 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
155 (1) Autodetectable format
156 (2) Autodetectable format in a Double Density (720K) drive only
157 (3) Autodetectable format in a High Density (1440K) drive only
159 NOTE: The letter in the device name (d, q, h or u)
160 signifies the type of drive: 5.25" Double Density (d),
161 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
162 (any model, u). The use of the capital letters D, H
163 and E for the 3.5" models have been deprecated, since
164 the drive type is insignificant for these devices.
166 3 char Pseudo-TTY slaves
167 0 = /dev/ttyp0 First PTY slave
168 1 = /dev/ttyp1 Second PTY slave
170 255 = /dev/ttyef 256th PTY slave
172 These are the old-style (BSD) PTY devices; Unix98
173 devices are on major 136 and above.
175 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
176 0 = /dev/hda Master: whole disk (or CD-ROM)
177 64 = /dev/hdb Slave: whole disk (or CD-ROM)
179 For partitions, add to the whole disk device number:
180 0 = /dev/hd? Whole disk
181 1 = /dev/hd?1 First partition
182 2 = /dev/hd?2 Second partition
184 63 = /dev/hd?63 63rd partition
186 For Linux/i386, partitions 1-4 are the primary
187 partitions, and 5 and above are logical partitions.
188 Other versions of Linux use partitioning schemes
189 appropriate to their respective architectures.
192 0 = /dev/tty0 Current virtual console
194 1 = /dev/tty1 First virtual console
196 63 = /dev/tty63 63rd virtual console
197 64 = /dev/ttyS0 First UART serial port
199 255 = /dev/ttyS191 192nd UART serial port
201 UART serial ports refer to 8250/16450/16550 series devices.
203 Older versions of the Linux kernel used this major
204 number for BSD PTY devices. As of Linux 2.1.115, this
205 is no longer supported. Use major numbers 2 and 3.
207 4 block Aliases for dynamically allocated major devices to be used
208 when its not possible to create the real device nodes
209 because the root filesystem is mounted read-only.
213 5 char Alternate TTY devices
214 0 = /dev/tty Current TTY device
215 1 = /dev/console System console
216 2 = /dev/ptmx PTY master multiplex
217 3 = /dev/ttyprintk User messages via printk TTY device
218 64 = /dev/cua0 Callout device for ttyS0
220 255 = /dev/cua191 Callout device for ttyS191
222 (5,1) is /dev/console starting with Linux 2.1.71. See
223 the section on terminal devices for more information
226 6 char Parallel printer devices
227 0 = /dev/lp0 Parallel printer on parport0
228 1 = /dev/lp1 Parallel printer on parport1
231 Current Linux kernels no longer have a fixed mapping
232 between parallel ports and I/O addresses. Instead,
233 they are redirected through the parport multiplex layer.
235 7 char Virtual console capture devices
236 0 = /dev/vcs Current vc text contents
237 1 = /dev/vcs1 tty1 text contents
239 63 = /dev/vcs63 tty63 text contents
240 128 = /dev/vcsa Current vc text/attribute contents
241 129 = /dev/vcsa1 tty1 text/attribute contents
243 191 = /dev/vcsa63 tty63 text/attribute contents
245 NOTE: These devices permit both read and write access.
247 7 block Loopback devices
248 0 = /dev/loop0 First loop device
249 1 = /dev/loop1 Second loop device
252 The loop devices are used to mount filesystems not
253 associated with block devices. The binding to the
254 loop devices is handled by mount(8) or losetup(8).
256 8 block SCSI disk devices (0-15)
257 0 = /dev/sda First SCSI disk whole disk
258 16 = /dev/sdb Second SCSI disk whole disk
259 32 = /dev/sdc Third SCSI disk whole disk
261 240 = /dev/sdp Sixteenth SCSI disk whole disk
263 Partitions are handled in the same way as for IDE
264 disks (see major number 3) except that the limit on
267 9 char SCSI tape devices
268 0 = /dev/st0 First SCSI tape, mode 0
269 1 = /dev/st1 Second SCSI tape, mode 0
271 32 = /dev/st0l First SCSI tape, mode 1
272 33 = /dev/st1l Second SCSI tape, mode 1
274 64 = /dev/st0m First SCSI tape, mode 2
275 65 = /dev/st1m Second SCSI tape, mode 2
277 96 = /dev/st0a First SCSI tape, mode 3
278 97 = /dev/st1a Second SCSI tape, mode 3
280 128 = /dev/nst0 First SCSI tape, mode 0, no rewind
281 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
283 160 = /dev/nst0l First SCSI tape, mode 1, no rewind
284 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
286 192 = /dev/nst0m First SCSI tape, mode 2, no rewind
287 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
289 224 = /dev/nst0a First SCSI tape, mode 3, no rewind
290 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
293 "No rewind" refers to the omission of the default
294 automatic rewind on device close. The MTREW or MTOFFL
295 ioctl()'s can be used to rewind the tape regardless of
296 the device used to access it.
298 9 block Metadisk (RAID) devices
299 0 = /dev/md0 First metadisk group
300 1 = /dev/md1 Second metadisk group
303 The metadisk driver is used to span a
304 filesystem across multiple physical disks.
306 10 char Non-serial mice, misc features
307 0 = /dev/logibm Logitech bus mouse
308 1 = /dev/psaux PS/2-style mouse port
309 2 = /dev/inportbm Microsoft Inport bus mouse
310 3 = /dev/atibm ATI XL bus mouse
312 4 = /dev/amigamouse Amiga mouse (68k/Amiga)
313 5 = /dev/atarimouse Atari mouse
314 6 = /dev/sunmouse Sun mouse
315 7 = /dev/amigamouse1 Second Amiga mouse
316 8 = /dev/smouse Simple serial mouse driver
317 9 = /dev/pc110pad IBM PC-110 digitizer pad
318 10 = /dev/adbmouse Apple Desktop Bus mouse
319 11 = /dev/vrtpanel Vr41xx embedded touch panel
320 13 = /dev/vpcmouse Connectix Virtual PC Mouse
321 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
322 15 = /dev/touchscreen/mk712 MK712 touchscreen
323 128 = /dev/beep Fancy beep device
325 130 = /dev/watchdog Watchdog timer port
326 131 = /dev/temperature Machine internal temperature
327 132 = /dev/hwtrap Hardware fault trap
328 133 = /dev/exttrp External device trap
329 134 = /dev/apm_bios Advanced Power Management BIOS
330 135 = /dev/rtc Real Time Clock
331 137 = /dev/vhci Bluetooth virtual HCI driver
332 139 = /dev/openprom SPARC OpenBoot PROM
333 140 = /dev/relay8 Berkshire Products Octal relay card
334 141 = /dev/relay16 Berkshire Products ISO-16 relay card
336 143 = /dev/pciconf PCI configuration space
337 144 = /dev/nvram Non-volatile configuration RAM
338 145 = /dev/hfmodem Soundcard shortwave modem control
339 146 = /dev/graphics Linux/SGI graphics device
340 147 = /dev/opengl Linux/SGI OpenGL pipe
341 148 = /dev/gfx Linux/SGI graphics effects device
342 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
343 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
344 151 = /dev/led Front panel LEDs
345 152 = /dev/kpoll Kernel Poll Driver
346 153 = /dev/mergemem Memory merge device
347 154 = /dev/pmu Macintosh PowerBook power manager
348 155 = /dev/isictl MultiTech ISICom serial control
349 156 = /dev/lcd Front panel LCD display
350 157 = /dev/ac Applicom Intl Profibus card
351 158 = /dev/nwbutton Netwinder external button
352 159 = /dev/nwdebug Netwinder debug interface
353 160 = /dev/nwflash Netwinder flash memory
354 161 = /dev/userdma User-space DMA access
355 162 = /dev/smbus System Management Bus
356 163 = /dev/lik Logitech Internet Keyboard
357 164 = /dev/ipmo Intel Intelligent Platform Management
358 165 = /dev/vmmon VMware virtual machine monitor
359 166 = /dev/i2o/ctl I2O configuration manager
360 167 = /dev/specialix_sxctl Specialix serial control
361 168 = /dev/tcldrv Technology Concepts serial control
362 169 = /dev/specialix_rioctl Specialix RIO serial control
363 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices
364 171 = /dev/srripc QNX4 API IPC manager
365 172 = /dev/usemaclone Semaphore clone device
366 173 = /dev/ipmikcs Intelligent Platform Management
367 174 = /dev/uctrl SPARCbook 3 microcontroller
368 175 = /dev/agpgart AGP Graphics Address Remapping Table
369 176 = /dev/gtrsc Gorgy Timing radio clock
370 177 = /dev/cbm Serial CBM bus
371 178 = /dev/jsflash JavaStation OS flash SIMM
372 179 = /dev/xsvc High-speed shared-mem/semaphore service
373 180 = /dev/vrbuttons Vr41xx button input device
374 181 = /dev/toshiba Toshiba laptop SMM support
375 182 = /dev/perfctr Performance-monitoring counters
376 183 = /dev/hwrng Generic random number generator
377 184 = /dev/cpu/microcode CPU microcode update interface
378 186 = /dev/atomicps Atomic shapshot of process state data
379 187 = /dev/irnet IrNET device
380 188 = /dev/smbusbios SMBus BIOS
381 189 = /dev/ussp_ctl User space serial port control
382 190 = /dev/crash Mission Critical Linux crash dump facility
383 191 = /dev/pcl181 <information missing>
384 192 = /dev/nas_xbus NAS xbus LCD/buttons access
385 193 = /dev/d7s SPARC 7-segment display
386 194 = /dev/zkshim Zero-Knowledge network shim control
387 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
388 196 = /dev/vfio/vfio VFIO userspace driver interface
389 197 = /dev/pxa3xx-gcu PXA3xx graphics controller unit driver
390 198 = /dev/sexec Signed executable interface
391 199 = /dev/scanners/cuecat :CueCat barcode scanner
392 200 = /dev/net/tun TAP/TUN network device
393 201 = /dev/button/gulpb Transmeta GULP-B buttons
394 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control
395 203 = /dev/cuse Cuse (character device in user-space)
396 204 = /dev/video/em8300 EM8300 DVD decoder control
397 205 = /dev/video/em8300_mv EM8300 DVD decoder video
398 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
399 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
400 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
401 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
402 210 = /dev/impi/bt IMPI coprocessor block transfer
403 211 = /dev/impi/smic IMPI coprocessor stream interface
404 212 = /dev/watchdogs/0 First watchdog device
405 213 = /dev/watchdogs/1 Second watchdog device
406 214 = /dev/watchdogs/2 Third watchdog device
407 215 = /dev/watchdogs/3 Fourth watchdog device
408 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel
409 217 = /dev/ni/natmotn National Instruments Motion
410 218 = /dev/kchuid Inter-process chuid control
411 219 = /dev/modems/mwave MWave modem firmware upload
412 220 = /dev/mptctl Message passing technology (MPT) control
413 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver
414 222 = /dev/mvista/hasi Montavista PICMG high availability
415 223 = /dev/input/uinput User level driver support for input
416 224 = /dev/tpm TCPA TPM driver
417 225 = /dev/pps Pulse Per Second driver
418 226 = /dev/systrace Systrace device
419 227 = /dev/mcelog X86_64 Machine Check Exception driver
420 228 = /dev/hpet HPET driver
421 229 = /dev/fuse Fuse (virtual filesystem in user-space)
422 230 = /dev/midishare MidiShare driver
423 231 = /dev/snapshot System memory snapshot device
424 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions)
425 233 = /dev/kmview View-OS A process with a view
426 234 = /dev/btrfs-control Btrfs control device
427 235 = /dev/autofs Autofs control device
428 236 = /dev/mapper/control Device-Mapper control device
429 237 = /dev/loop-control Loopback control device
430 238 = /dev/vhost-net Host kernel accelerator for virtio net
431 239 = /dev/uhid User-space I/O driver support for HID subsystem
433 240-254 Reserved for local use
434 255 Reserved for MISC_DYNAMIC_MINOR
436 11 char Raw keyboard device (Linux/SPARC only)
437 0 = /dev/kbd Raw keyboard device
439 11 char Serial Mux device (Linux/PA-RISC only)
440 0 = /dev/ttyB0 First mux port
441 1 = /dev/ttyB1 Second mux port
444 11 block SCSI CD-ROM devices
445 0 = /dev/scd0 First SCSI CD-ROM
446 1 = /dev/scd1 Second SCSI CD-ROM
449 The prefix /dev/sr (instead of /dev/scd) has been deprecated.
452 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
453 3 = /dev/tpqic11 QIC-11, rewind-on-close
454 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
455 5 = /dev/tpqic24 QIC-24, rewind-on-close
456 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
457 7 = /dev/tpqic120 QIC-120, rewind-on-close
458 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
459 9 = /dev/tpqic150 QIC-150, rewind-on-close
461 The device names specified are proposed -- if there
462 are "standard" names for these devices, please let me know.
467 0 = /dev/input/js0 First joystick
468 1 = /dev/input/js1 Second joystick
470 32 = /dev/input/mouse0 First mouse
471 33 = /dev/input/mouse1 Second mouse
473 63 = /dev/input/mice Unified mouse
474 64 = /dev/input/event0 First event queue
475 65 = /dev/input/event1 Second event queue
478 Each device type has 5 bits (32 minors).
480 13 block Previously used for the XT disk (/dev/xdN)
481 Deleted in kernel v3.9.
483 14 char Open Sound System (OSS)
484 0 = /dev/mixer Mixer control
485 1 = /dev/sequencer Audio sequencer
486 2 = /dev/midi00 First MIDI port
487 3 = /dev/dsp Digital audio
488 4 = /dev/audio Sun-compatible digital audio
490 7 = /dev/audioctl SPARC audio control device
491 8 = /dev/sequencer2 Sequencer -- alternate device
492 16 = /dev/mixer1 Second soundcard mixer control
493 17 = /dev/patmgr0 Sequencer patch manager
494 18 = /dev/midi01 Second MIDI port
495 19 = /dev/dsp1 Second soundcard digital audio
496 20 = /dev/audio1 Second soundcard Sun digital audio
497 33 = /dev/patmgr1 Sequencer patch manager
498 34 = /dev/midi02 Third MIDI port
499 50 = /dev/midi03 Fourth MIDI port
504 0 = /dev/js0 First analog joystick
505 1 = /dev/js1 Second analog joystick
507 128 = /dev/djs0 First digital joystick
508 129 = /dev/djs1 Second digital joystick
510 15 block Sony CDU-31A/CDU-33A CD-ROM
511 0 = /dev/sonycd Sony CDU-31a CD-ROM
513 16 char Non-SCSI scanners
514 0 = /dev/gs4500 Genius 4500 handheld scanner
516 16 block GoldStar CD-ROM
517 0 = /dev/gscd GoldStar CD-ROM
519 17 char OBSOLETE (was Chase serial card)
520 0 = /dev/ttyH0 First Chase port
521 1 = /dev/ttyH1 Second Chase port
523 17 block Optics Storage CD-ROM
524 0 = /dev/optcd Optics Storage CD-ROM
526 18 char OBSOLETE (was Chase serial card - alternate devices)
527 0 = /dev/cuh0 Callout device for ttyH0
528 1 = /dev/cuh1 Callout device for ttyH1
530 18 block Sanyo CD-ROM
531 0 = /dev/sjcd Sanyo CD-ROM
533 19 char Cyclades serial card
534 0 = /dev/ttyC0 First Cyclades port
536 31 = /dev/ttyC31 32nd Cyclades port
538 19 block "Double" compressed disk
539 0 = /dev/double0 First compressed disk
541 7 = /dev/double7 Eighth compressed disk
542 128 = /dev/cdouble0 Mirror of first compressed disk
544 135 = /dev/cdouble7 Mirror of eighth compressed disk
546 See the Double documentation for the meaning of the
549 20 char Cyclades serial card - alternate devices
550 0 = /dev/cub0 Callout device for ttyC0
552 31 = /dev/cub31 Callout device for ttyC31
554 20 block Hitachi CD-ROM (under development)
555 0 = /dev/hitcd Hitachi CD-ROM
557 21 char Generic SCSI access
558 0 = /dev/sg0 First generic SCSI device
559 1 = /dev/sg1 Second generic SCSI device
562 Most distributions name these /dev/sga, /dev/sgb...;
563 this sets an unnecessary limit of 26 SCSI devices in
564 the system and is counter to standard Linux
565 device-naming practice.
567 21 block Acorn MFM hard drive interface
568 0 = /dev/mfma First MFM drive whole disk
569 64 = /dev/mfmb Second MFM drive whole disk
571 This device is used on the ARM-based Acorn RiscPC.
572 Partitions are handled the same way as for IDE disks
573 (see major number 3).
575 22 char Digiboard serial card
576 0 = /dev/ttyD0 First Digiboard port
577 1 = /dev/ttyD1 Second Digiboard port
579 22 block Second IDE hard disk/CD-ROM interface
580 0 = /dev/hdc Master: whole disk (or CD-ROM)
581 64 = /dev/hdd Slave: whole disk (or CD-ROM)
583 Partitions are handled the same way as for the first
584 interface (see major number 3).
586 23 char Digiboard serial card - alternate devices
587 0 = /dev/cud0 Callout device for ttyD0
588 1 = /dev/cud1 Callout device for ttyD1
590 23 block Mitsumi proprietary CD-ROM
591 0 = /dev/mcd Mitsumi CD-ROM
593 24 char Stallion serial card
594 0 = /dev/ttyE0 Stallion port 0 card 0
595 1 = /dev/ttyE1 Stallion port 1 card 0
597 64 = /dev/ttyE64 Stallion port 0 card 1
598 65 = /dev/ttyE65 Stallion port 1 card 1
600 128 = /dev/ttyE128 Stallion port 0 card 2
601 129 = /dev/ttyE129 Stallion port 1 card 2
603 192 = /dev/ttyE192 Stallion port 0 card 3
604 193 = /dev/ttyE193 Stallion port 1 card 3
606 24 block Sony CDU-535 CD-ROM
607 0 = /dev/cdu535 Sony CDU-535 CD-ROM
609 25 char Stallion serial card - alternate devices
610 0 = /dev/cue0 Callout device for ttyE0
611 1 = /dev/cue1 Callout device for ttyE1
613 64 = /dev/cue64 Callout device for ttyE64
614 65 = /dev/cue65 Callout device for ttyE65
616 128 = /dev/cue128 Callout device for ttyE128
617 129 = /dev/cue129 Callout device for ttyE129
619 192 = /dev/cue192 Callout device for ttyE192
620 193 = /dev/cue193 Callout device for ttyE193
622 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
623 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
624 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
625 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
626 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
630 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
631 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
632 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
633 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
634 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
637 0 = /dev/qft0 Unit 0, rewind-on-close
638 1 = /dev/qft1 Unit 1, rewind-on-close
639 2 = /dev/qft2 Unit 2, rewind-on-close
640 3 = /dev/qft3 Unit 3, rewind-on-close
641 4 = /dev/nqft0 Unit 0, no rewind-on-close
642 5 = /dev/nqft1 Unit 1, no rewind-on-close
643 6 = /dev/nqft2 Unit 2, no rewind-on-close
644 7 = /dev/nqft3 Unit 3, no rewind-on-close
645 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
646 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
647 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
648 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
649 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
650 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
651 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
652 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
653 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
654 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
655 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
656 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
657 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
658 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
659 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
660 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
662 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
663 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
664 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
665 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
666 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
668 28 char Stallion serial card - card programming
669 0 = /dev/staliomem0 First Stallion card I/O memory
670 1 = /dev/staliomem1 Second Stallion card I/O memory
671 2 = /dev/staliomem2 Third Stallion card I/O memory
672 3 = /dev/staliomem3 Fourth Stallion card I/O memory
674 28 char Atari SLM ACSI laser printer (68k/Atari)
675 0 = /dev/slm0 First SLM laser printer
676 1 = /dev/slm1 Second SLM laser printer
678 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
679 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
680 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
681 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
682 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
684 28 block ACSI disk (68k/Atari)
685 0 = /dev/ada First ACSI disk whole disk
686 16 = /dev/adb Second ACSI disk whole disk
687 32 = /dev/adc Third ACSI disk whole disk
689 240 = /dev/adp 16th ACSI disk whole disk
691 Partitions are handled in the same way as for IDE
692 disks (see major number 3) except that the limit on
693 partitions is 15, like SCSI.
695 29 char Universal frame buffer
696 0 = /dev/fb0 First frame buffer
697 1 = /dev/fb1 Second frame buffer
699 31 = /dev/fb31 32nd frame buffer
701 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
702 0 = /dev/aztcd Aztech CD-ROM
704 30 char iBCS-2 compatibility devices
705 0 = /dev/socksys Socket access
706 1 = /dev/spx SVR3 local X interface
707 32 = /dev/inet/ip Network access
718 Additionally, iBCS-2 requires the following links:
720 /dev/ip -> /dev/inet/ip
721 /dev/icmp -> /dev/inet/icmp
722 /dev/ggp -> /dev/inet/ggp
723 /dev/ipip -> /dev/inet/ipip
724 /dev/tcp -> /dev/inet/tcp
725 /dev/egp -> /dev/inet/egp
726 /dev/pup -> /dev/inet/pup
727 /dev/udp -> /dev/inet/udp
728 /dev/idp -> /dev/inet/idp
729 /dev/rawip -> /dev/inet/rawip
730 /dev/inet/arp -> /dev/inet/udp
731 /dev/inet/rip -> /dev/inet/udp
732 /dev/nfsd -> /dev/socksys
733 /dev/X0R -> /dev/null (? apparently not required ?)
735 30 block Philips LMS CM-205 CD-ROM
736 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
738 /dev/lmscd is an older name for this device. This
739 driver does not work with the CM-205MS CD-ROM.
742 0 = /dev/mpu401data MPU-401 data port
743 1 = /dev/mpu401stat MPU-401 status port
745 31 block ROM/flash memory card
746 0 = /dev/rom0 First ROM card (rw)
748 7 = /dev/rom7 Eighth ROM card (rw)
749 8 = /dev/rrom0 First ROM card (ro)
751 15 = /dev/rrom7 Eighth ROM card (ro)
752 16 = /dev/flash0 First flash memory card (rw)
754 23 = /dev/flash7 Eighth flash memory card (rw)
755 24 = /dev/rflash0 First flash memory card (ro)
757 31 = /dev/rflash7 Eighth flash memory card (ro)
759 The read-write (rw) devices support back-caching
760 written data in RAM, as well as writing to flash RAM
761 devices. The read-only devices (ro) support reading
764 32 char Specialix serial card
765 0 = /dev/ttyX0 First Specialix port
766 1 = /dev/ttyX1 Second Specialix port
768 32 block Philips LMS CM-206 CD-ROM
769 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
771 33 char Specialix serial card - alternate devices
772 0 = /dev/cux0 Callout device for ttyX0
773 1 = /dev/cux1 Callout device for ttyX1
775 33 block Third IDE hard disk/CD-ROM interface
776 0 = /dev/hde Master: whole disk (or CD-ROM)
777 64 = /dev/hdf Slave: whole disk (or CD-ROM)
779 Partitions are handled the same way as for the first
780 interface (see major number 3).
782 34 char Z8530 HDLC driver
783 0 = /dev/scc0 First Z8530, first port
784 1 = /dev/scc1 First Z8530, second port
785 2 = /dev/scc2 Second Z8530, first port
786 3 = /dev/scc3 Second Z8530, second port
789 In a previous version these devices were named
790 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
793 34 block Fourth IDE hard disk/CD-ROM interface
794 0 = /dev/hdg Master: whole disk (or CD-ROM)
795 64 = /dev/hdh Slave: whole disk (or CD-ROM)
797 Partitions are handled the same way as for the first
798 interface (see major number 3).
800 35 char tclmidi MIDI driver
801 0 = /dev/midi0 First MIDI port, kernel timed
802 1 = /dev/midi1 Second MIDI port, kernel timed
803 2 = /dev/midi2 Third MIDI port, kernel timed
804 3 = /dev/midi3 Fourth MIDI port, kernel timed
805 64 = /dev/rmidi0 First MIDI port, untimed
806 65 = /dev/rmidi1 Second MIDI port, untimed
807 66 = /dev/rmidi2 Third MIDI port, untimed
808 67 = /dev/rmidi3 Fourth MIDI port, untimed
809 128 = /dev/smpte0 First MIDI port, SMPTE timed
810 129 = /dev/smpte1 Second MIDI port, SMPTE timed
811 130 = /dev/smpte2 Third MIDI port, SMPTE timed
812 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
814 35 block Slow memory ramdisk
815 0 = /dev/slram Slow memory ramdisk
817 36 char Netlink support
818 0 = /dev/route Routing, device updates, kernel to user
819 1 = /dev/skip enSKIP security cache control
820 3 = /dev/fwmonitor Firewall packet copies
821 16 = /dev/tap0 First Ethertap device
823 31 = /dev/tap15 16th Ethertap device
825 36 block OBSOLETE (was MCA ESDI hard disk)
828 0 = /dev/ht0 First IDE tape
829 1 = /dev/ht1 Second IDE tape
831 128 = /dev/nht0 First IDE tape, no rewind-on-close
832 129 = /dev/nht1 Second IDE tape, no rewind-on-close
835 Currently, only one IDE tape drive is supported.
837 37 block Zorro II ramdisk
838 0 = /dev/z2ram Zorro II ramdisk
840 38 char Myricom PCI Myrinet board
841 0 = /dev/mlanai0 First Myrinet board
842 1 = /dev/mlanai1 Second Myrinet board
845 This device is used for status query, board control
846 and "user level packet I/O." This board is also
847 accessible as a standard networking "eth" device.
849 38 block OBSOLETE (was Linux/AP+)
851 39 char ML-16P experimental I/O board
852 0 = /dev/ml16pa-a0 First card, first analog channel
853 1 = /dev/ml16pa-a1 First card, second analog channel
855 15 = /dev/ml16pa-a15 First card, 16th analog channel
856 16 = /dev/ml16pa-d First card, digital lines
857 17 = /dev/ml16pa-c0 First card, first counter/timer
858 18 = /dev/ml16pa-c1 First card, second counter/timer
859 19 = /dev/ml16pa-c2 First card, third counter/timer
860 32 = /dev/ml16pb-a0 Second card, first analog channel
861 33 = /dev/ml16pb-a1 Second card, second analog channel
863 47 = /dev/ml16pb-a15 Second card, 16th analog channel
864 48 = /dev/ml16pb-d Second card, digital lines
865 49 = /dev/ml16pb-c0 Second card, first counter/timer
866 50 = /dev/ml16pb-c1 Second card, second counter/timer
867 51 = /dev/ml16pb-c2 Second card, third counter/timer
875 41 char Yet Another Micro Monitor
876 0 = /dev/yamm Yet Another Micro Monitor
880 42 char Demo/sample use
882 42 block Demo/sample use
884 This number is intended for use in sample code, as
885 well as a general "example" device number. It
886 should never be used for a device driver that is being
887 distributed; either obtain an official number or use
888 the local/experimental range. The sudden addition or
889 removal of a driver with this number should not cause
890 ill effects to the system (bugs excepted.)
892 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
893 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
895 43 char isdn4linux virtual modem
896 0 = /dev/ttyI0 First virtual modem
898 63 = /dev/ttyI63 64th virtual modem
900 43 block Network block devices
901 0 = /dev/nb0 First network block device
902 1 = /dev/nb1 Second network block device
905 Network Block Device is somehow similar to loopback
906 devices: If you read from it, it sends packet across
907 network asking server for data. If you write to it, it
908 sends packet telling server to write. It could be used
909 to mounting filesystems over the net, swapping over
910 the net, implementing block device in userland etc.
912 44 char isdn4linux virtual modem - alternate devices
913 0 = /dev/cui0 Callout device for ttyI0
915 63 = /dev/cui63 Callout device for ttyI63
917 44 block Flash Translation Layer (FTL) filesystems
918 0 = /dev/ftla FTL on first Memory Technology Device
919 16 = /dev/ftlb FTL on second Memory Technology Device
920 32 = /dev/ftlc FTL on third Memory Technology Device
922 240 = /dev/ftlp FTL on 16th Memory Technology Device
924 Partitions are handled in the same way as for IDE
925 disks (see major number 3) except that the partition
926 limit is 15 rather than 63 per disk (same as SCSI.)
928 45 char isdn4linux ISDN BRI driver
929 0 = /dev/isdn0 First virtual B channel raw data
931 63 = /dev/isdn63 64th virtual B channel raw data
932 64 = /dev/isdnctrl0 First channel control/debug
934 127 = /dev/isdnctrl63 64th channel control/debug
936 128 = /dev/ippp0 First SyncPPP device
938 191 = /dev/ippp63 64th SyncPPP device
940 255 = /dev/isdninfo ISDN monitor interface
942 45 block Parallel port IDE disk devices
943 0 = /dev/pda First parallel port IDE disk
944 16 = /dev/pdb Second parallel port IDE disk
945 32 = /dev/pdc Third parallel port IDE disk
946 48 = /dev/pdd Fourth parallel port IDE disk
948 Partitions are handled in the same way as for IDE
949 disks (see major number 3) except that the partition
950 limit is 15 rather than 63 per disk.
952 46 char Comtrol Rocketport serial card
953 0 = /dev/ttyR0 First Rocketport port
954 1 = /dev/ttyR1 Second Rocketport port
956 46 block Parallel port ATAPI CD-ROM devices
957 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
958 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
959 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
960 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
962 47 char Comtrol Rocketport serial card - alternate devices
963 0 = /dev/cur0 Callout device for ttyR0
964 1 = /dev/cur1 Callout device for ttyR1
966 47 block Parallel port ATAPI disk devices
967 0 = /dev/pf0 First parallel port ATAPI disk
968 1 = /dev/pf1 Second parallel port ATAPI disk
969 2 = /dev/pf2 Third parallel port ATAPI disk
970 3 = /dev/pf3 Fourth parallel port ATAPI disk
972 This driver is intended for floppy disks and similar
973 devices and hence does not support partitioning.
975 48 char SDL RISCom serial card
976 0 = /dev/ttyL0 First RISCom port
977 1 = /dev/ttyL1 Second RISCom port
979 48 block Mylex DAC960 PCI RAID controller; first controller
980 0 = /dev/rd/c0d0 First disk, whole disk
981 8 = /dev/rd/c0d1 Second disk, whole disk
983 248 = /dev/rd/c0d31 32nd disk, whole disk
986 0 = /dev/rd/c?d? Whole disk
987 1 = /dev/rd/c?d?p1 First partition
989 7 = /dev/rd/c?d?p7 Seventh partition
991 49 char SDL RISCom serial card - alternate devices
992 0 = /dev/cul0 Callout device for ttyL0
993 1 = /dev/cul1 Callout device for ttyL1
995 49 block Mylex DAC960 PCI RAID controller; second controller
996 0 = /dev/rd/c1d0 First disk, whole disk
997 8 = /dev/rd/c1d1 Second disk, whole disk
999 248 = /dev/rd/c1d31 32nd disk, whole disk
1001 Partitions are handled as for major 48.
1003 50 char Reserved for GLINT
1005 50 block Mylex DAC960 PCI RAID controller; third controller
1006 0 = /dev/rd/c2d0 First disk, whole disk
1007 8 = /dev/rd/c2d1 Second disk, whole disk
1009 248 = /dev/rd/c2d31 32nd disk, whole disk
1011 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
1012 0 = /dev/bc0 First Baycom radio modem
1013 1 = /dev/bc1 Second Baycom radio modem
1015 51 block Mylex DAC960 PCI RAID controller; fourth controller
1016 0 = /dev/rd/c3d0 First disk, whole disk
1017 8 = /dev/rd/c3d1 Second disk, whole disk
1019 248 = /dev/rd/c3d31 32nd disk, whole disk
1021 Partitions are handled as for major 48.
1023 52 char Spellcaster DataComm/BRI ISDN card
1024 0 = /dev/dcbri0 First DataComm card
1025 1 = /dev/dcbri1 Second DataComm card
1026 2 = /dev/dcbri2 Third DataComm card
1027 3 = /dev/dcbri3 Fourth DataComm card
1029 52 block Mylex DAC960 PCI RAID controller; fifth controller
1030 0 = /dev/rd/c4d0 First disk, whole disk
1031 8 = /dev/rd/c4d1 Second disk, whole disk
1033 248 = /dev/rd/c4d31 32nd disk, whole disk
1035 Partitions are handled as for major 48.
1037 53 char BDM interface for remote debugging MC683xx microcontrollers
1038 0 = /dev/pd_bdm0 PD BDM interface on lp0
1039 1 = /dev/pd_bdm1 PD BDM interface on lp1
1040 2 = /dev/pd_bdm2 PD BDM interface on lp2
1041 4 = /dev/icd_bdm0 ICD BDM interface on lp0
1042 5 = /dev/icd_bdm1 ICD BDM interface on lp1
1043 6 = /dev/icd_bdm2 ICD BDM interface on lp2
1045 This device is used for the interfacing to the MC683xx
1046 microcontrollers via Background Debug Mode by use of a
1047 Parallel Port interface. PD is the Motorola Public
1048 Domain Interface and ICD is the commercial interface
1051 53 block Mylex DAC960 PCI RAID controller; sixth controller
1052 0 = /dev/rd/c5d0 First disk, whole disk
1053 8 = /dev/rd/c5d1 Second disk, whole disk
1055 248 = /dev/rd/c5d31 32nd disk, whole disk
1057 Partitions are handled as for major 48.
1059 54 char Electrocardiognosis Holter serial card
1060 0 = /dev/holter0 First Holter port
1061 1 = /dev/holter1 Second Holter port
1062 2 = /dev/holter2 Third Holter port
1064 A custom serial card used by Electrocardiognosis SRL
1065 <mseritan@ottonel.pub.ro> to transfer data from Holter
1066 24-hour heart monitoring equipment.
1068 54 block Mylex DAC960 PCI RAID controller; seventh controller
1069 0 = /dev/rd/c6d0 First disk, whole disk
1070 8 = /dev/rd/c6d1 Second disk, whole disk
1072 248 = /dev/rd/c6d31 32nd disk, whole disk
1074 Partitions are handled as for major 48.
1076 55 char DSP56001 digital signal processor
1077 0 = /dev/dsp56k First DSP56001
1079 55 block Mylex DAC960 PCI RAID controller; eighth controller
1080 0 = /dev/rd/c7d0 First disk, whole disk
1081 8 = /dev/rd/c7d1 Second disk, whole disk
1083 248 = /dev/rd/c7d31 32nd disk, whole disk
1085 Partitions are handled as for major 48.
1087 56 char Apple Desktop Bus
1088 0 = /dev/adb ADB bus control
1090 Additional devices will be added to this number, all
1091 starting with /dev/adb.
1093 56 block Fifth IDE hard disk/CD-ROM interface
1094 0 = /dev/hdi Master: whole disk (or CD-ROM)
1095 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1097 Partitions are handled the same way as for the first
1098 interface (see major number 3).
1100 57 char Hayes ESP serial card
1101 0 = /dev/ttyP0 First ESP port
1102 1 = /dev/ttyP1 Second ESP port
1105 57 block Sixth IDE hard disk/CD-ROM interface
1106 0 = /dev/hdk Master: whole disk (or CD-ROM)
1107 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1109 Partitions are handled the same way as for the first
1110 interface (see major number 3).
1112 58 char Hayes ESP serial card - alternate devices
1113 0 = /dev/cup0 Callout device for ttyP0
1114 1 = /dev/cup1 Callout device for ttyP1
1117 58 block Reserved for logical volume manager
1119 59 char sf firewall package
1120 0 = /dev/firewall Communication with sf kernel module
1122 59 block Generic PDA filesystem device
1123 0 = /dev/pda0 First PDA device
1124 1 = /dev/pda1 Second PDA device
1127 The pda devices are used to mount filesystems on
1128 remote pda's (basically slow handheld machines with
1129 proprietary OS's and limited memory and storage
1130 running small fs translation drivers) through serial /
1131 IRDA / parallel links.
1133 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1135 60-63 char LOCAL/EXPERIMENTAL USE
1137 60-63 block LOCAL/EXPERIMENTAL USE
1138 Allocated for local/experimental use. For devices not
1139 assigned official numbers, these ranges should be
1140 used in order to avoid conflicting with future assignments.
1142 64 char ENskip kernel encryption package
1143 0 = /dev/enskip Communication with ENskip kernel module
1145 64 block Scramdisk/DriveCrypt encrypted devices
1146 0 = /dev/scramdisk/master Master node for ioctls
1147 1 = /dev/scramdisk/1 First encrypted device
1148 2 = /dev/scramdisk/2 Second encrypted device
1150 255 = /dev/scramdisk/255 255th encrypted device
1152 The filename of the encrypted container and the passwords
1153 are sent via ioctls (using the sdmount tool) to the master
1154 node which then activates them via one of the
1155 /dev/scramdisk/x nodes for loop mounting (all handled
1156 through the sdmount tool).
1158 Requested by: andy@scramdisklinux.org
1160 65 char Sundance "plink" Transputer boards (obsolete, unused)
1161 0 = /dev/plink0 First plink device
1162 1 = /dev/plink1 Second plink device
1163 2 = /dev/plink2 Third plink device
1164 3 = /dev/plink3 Fourth plink device
1165 64 = /dev/rplink0 First plink device, raw
1166 65 = /dev/rplink1 Second plink device, raw
1167 66 = /dev/rplink2 Third plink device, raw
1168 67 = /dev/rplink3 Fourth plink device, raw
1169 128 = /dev/plink0d First plink device, debug
1170 129 = /dev/plink1d Second plink device, debug
1171 130 = /dev/plink2d Third plink device, debug
1172 131 = /dev/plink3d Fourth plink device, debug
1173 192 = /dev/rplink0d First plink device, raw, debug
1174 193 = /dev/rplink1d Second plink device, raw, debug
1175 194 = /dev/rplink2d Third plink device, raw, debug
1176 195 = /dev/rplink3d Fourth plink device, raw, debug
1178 This is a commercial driver; contact James Howes
1179 <jth@prosig.demon.co.uk> for information.
1181 65 block SCSI disk devices (16-31)
1182 0 = /dev/sdq 17th SCSI disk whole disk
1183 16 = /dev/sdr 18th SCSI disk whole disk
1184 32 = /dev/sds 19th SCSI disk whole disk
1186 240 = /dev/sdaf 32nd SCSI disk whole disk
1188 Partitions are handled in the same way as for IDE
1189 disks (see major number 3) except that the limit on
1192 66 char YARC PowerPC PCI coprocessor card
1193 0 = /dev/yppcpci0 First YARC card
1194 1 = /dev/yppcpci1 Second YARC card
1197 66 block SCSI disk devices (32-47)
1198 0 = /dev/sdag 33th SCSI disk whole disk
1199 16 = /dev/sdah 34th SCSI disk whole disk
1200 32 = /dev/sdai 35th SCSI disk whole disk
1202 240 = /dev/sdav 48nd SCSI disk whole disk
1204 Partitions are handled in the same way as for IDE
1205 disks (see major number 3) except that the limit on
1208 67 char Coda network file system
1209 0 = /dev/cfs0 Coda cache manager
1211 See http://www.coda.cs.cmu.edu for information about Coda.
1213 67 block SCSI disk devices (48-63)
1214 0 = /dev/sdaw 49th SCSI disk whole disk
1215 16 = /dev/sdax 50th SCSI disk whole disk
1216 32 = /dev/sday 51st SCSI disk whole disk
1218 240 = /dev/sdbl 64th SCSI disk whole disk
1220 Partitions are handled in the same way as for IDE
1221 disks (see major number 3) except that the limit on
1224 68 char CAPI 2.0 interface
1225 0 = /dev/capi20 Control device
1226 1 = /dev/capi20.00 First CAPI 2.0 application
1227 2 = /dev/capi20.01 Second CAPI 2.0 application
1229 20 = /dev/capi20.19 19th CAPI 2.0 application
1231 ISDN CAPI 2.0 driver for use with CAPI 2.0
1232 applications; currently supports the AVM B1 card.
1234 68 block SCSI disk devices (64-79)
1235 0 = /dev/sdbm 65th SCSI disk whole disk
1236 16 = /dev/sdbn 66th SCSI disk whole disk
1237 32 = /dev/sdbo 67th SCSI disk whole disk
1239 240 = /dev/sdcb 80th SCSI disk whole disk
1241 Partitions are handled in the same way as for IDE
1242 disks (see major number 3) except that the limit on
1245 69 char MA16 numeric accelerator card
1246 0 = /dev/ma16 Board memory access
1248 69 block SCSI disk devices (80-95)
1249 0 = /dev/sdcc 81st SCSI disk whole disk
1250 16 = /dev/sdcd 82nd SCSI disk whole disk
1251 32 = /dev/sdce 83th SCSI disk whole disk
1253 240 = /dev/sdcr 96th SCSI disk whole disk
1255 Partitions are handled in the same way as for IDE
1256 disks (see major number 3) except that the limit on
1259 70 char SpellCaster Protocol Services Interface
1260 0 = /dev/apscfg Configuration interface
1261 1 = /dev/apsauth Authentication interface
1262 2 = /dev/apslog Logging interface
1263 3 = /dev/apsdbg Debugging interface
1264 64 = /dev/apsisdn ISDN command interface
1265 65 = /dev/apsasync Async command interface
1266 128 = /dev/apsmon Monitor interface
1268 70 block SCSI disk devices (96-111)
1269 0 = /dev/sdcs 97th SCSI disk whole disk
1270 16 = /dev/sdct 98th SCSI disk whole disk
1271 32 = /dev/sdcu 99th SCSI disk whole disk
1273 240 = /dev/sddh 112nd SCSI disk whole disk
1275 Partitions are handled in the same way as for IDE
1276 disks (see major number 3) except that the limit on
1279 71 char Computone IntelliPort II serial card
1280 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1281 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1283 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1284 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1285 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1287 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1288 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1289 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1291 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1292 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1293 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1295 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1297 71 block SCSI disk devices (112-127)
1298 0 = /dev/sddi 113th SCSI disk whole disk
1299 16 = /dev/sddj 114th SCSI disk whole disk
1300 32 = /dev/sddk 115th SCSI disk whole disk
1302 240 = /dev/sddx 128th SCSI disk whole disk
1304 Partitions are handled in the same way as for IDE
1305 disks (see major number 3) except that the limit on
1308 72 char Computone IntelliPort II serial card - alternate devices
1309 0 = /dev/cuf0 Callout device for ttyF0
1310 1 = /dev/cuf1 Callout device for ttyF1
1312 63 = /dev/cuf63 Callout device for ttyF63
1313 64 = /dev/cuf64 Callout device for ttyF64
1314 65 = /dev/cuf65 Callout device for ttyF65
1316 127 = /dev/cuf127 Callout device for ttyF127
1317 128 = /dev/cuf128 Callout device for ttyF128
1318 129 = /dev/cuf129 Callout device for ttyF129
1320 191 = /dev/cuf191 Callout device for ttyF191
1321 192 = /dev/cuf192 Callout device for ttyF192
1322 193 = /dev/cuf193 Callout device for ttyF193
1324 255 = /dev/cuf255 Callout device for ttyF255
1326 72 block Compaq Intelligent Drive Array, first controller
1327 0 = /dev/ida/c0d0 First logical drive whole disk
1328 16 = /dev/ida/c0d1 Second logical drive whole disk
1330 240 = /dev/ida/c0d15 16th logical drive whole disk
1332 Partitions are handled the same way as for Mylex
1333 DAC960 (see major number 48) except that the limit on
1336 73 char Computone IntelliPort II serial card - control devices
1337 0 = /dev/ip2ipl0 Loadware device for board 0
1338 1 = /dev/ip2stat0 Status device for board 0
1339 4 = /dev/ip2ipl1 Loadware device for board 1
1340 5 = /dev/ip2stat1 Status device for board 1
1341 8 = /dev/ip2ipl2 Loadware device for board 2
1342 9 = /dev/ip2stat2 Status device for board 2
1343 12 = /dev/ip2ipl3 Loadware device for board 3
1344 13 = /dev/ip2stat3 Status device for board 3
1346 73 block Compaq Intelligent Drive Array, second controller
1347 0 = /dev/ida/c1d0 First logical drive whole disk
1348 16 = /dev/ida/c1d1 Second logical drive whole disk
1350 240 = /dev/ida/c1d15 16th logical drive whole disk
1352 Partitions are handled the same way as for Mylex
1353 DAC960 (see major number 48) except that the limit on
1357 0 = /dev/SCI/0 SCI device 0
1358 1 = /dev/SCI/1 SCI device 1
1361 Currently for Dolphin Interconnect Solutions' PCI-SCI
1364 74 block Compaq Intelligent Drive Array, third controller
1365 0 = /dev/ida/c2d0 First logical drive whole disk
1366 16 = /dev/ida/c2d1 Second logical drive whole disk
1368 240 = /dev/ida/c2d15 16th logical drive whole disk
1370 Partitions are handled the same way as for Mylex
1371 DAC960 (see major number 48) except that the limit on
1374 75 char Specialix IO8+ serial card
1375 0 = /dev/ttyW0 First IO8+ port, first card
1376 1 = /dev/ttyW1 Second IO8+ port, first card
1378 8 = /dev/ttyW8 First IO8+ port, second card
1381 75 block Compaq Intelligent Drive Array, fourth controller
1382 0 = /dev/ida/c3d0 First logical drive whole disk
1383 16 = /dev/ida/c3d1 Second logical drive whole disk
1385 240 = /dev/ida/c3d15 16th logical drive whole disk
1387 Partitions are handled the same way as for Mylex
1388 DAC960 (see major number 48) except that the limit on
1391 76 char Specialix IO8+ serial card - alternate devices
1392 0 = /dev/cuw0 Callout device for ttyW0
1393 1 = /dev/cuw1 Callout device for ttyW1
1395 8 = /dev/cuw8 Callout device for ttyW8
1398 76 block Compaq Intelligent Drive Array, fifth controller
1399 0 = /dev/ida/c4d0 First logical drive whole disk
1400 16 = /dev/ida/c4d1 Second logical drive whole disk
1402 240 = /dev/ida/c4d15 16th logical drive whole disk
1404 Partitions are handled the same way as for Mylex
1405 DAC960 (see major number 48) except that the limit on
1409 77 char ComScire Quantum Noise Generator
1410 0 = /dev/qng ComScire Quantum Noise Generator
1412 77 block Compaq Intelligent Drive Array, sixth controller
1413 0 = /dev/ida/c5d0 First logical drive whole disk
1414 16 = /dev/ida/c5d1 Second logical drive whole disk
1416 240 = /dev/ida/c5d15 16th logical drive whole disk
1418 Partitions are handled the same way as for Mylex
1419 DAC960 (see major number 48) except that the limit on
1422 78 char PAM Software's multimodem boards
1423 0 = /dev/ttyM0 First PAM modem
1424 1 = /dev/ttyM1 Second PAM modem
1427 78 block Compaq Intelligent Drive Array, seventh controller
1428 0 = /dev/ida/c6d0 First logical drive whole disk
1429 16 = /dev/ida/c6d1 Second logical drive whole disk
1431 240 = /dev/ida/c6d15 16th logical drive whole disk
1433 Partitions are handled the same way as for Mylex
1434 DAC960 (see major number 48) except that the limit on
1437 79 char PAM Software's multimodem boards - alternate devices
1438 0 = /dev/cum0 Callout device for ttyM0
1439 1 = /dev/cum1 Callout device for ttyM1
1442 79 block Compaq Intelligent Drive Array, eighth controller
1443 0 = /dev/ida/c7d0 First logical drive whole disk
1444 16 = /dev/ida/c7d1 Second logical drive whole disk
1446 240 = /dev/ida/c715 16th logical drive whole disk
1448 Partitions are handled the same way as for Mylex
1449 DAC960 (see major number 48) except that the limit on
1452 80 char Photometrics AT200 CCD camera
1453 0 = /dev/at200 Photometrics AT200 CCD camera
1455 80 block I2O hard disk
1456 0 = /dev/i2o/hda First I2O hard disk, whole disk
1457 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1459 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1461 Partitions are handled in the same way as for IDE
1462 disks (see major number 3) except that the limit on
1466 0 = /dev/video0 Video capture/overlay device
1468 63 = /dev/video63 Video capture/overlay device
1469 64 = /dev/radio0 Radio device
1471 127 = /dev/radio63 Radio device
1472 128 = /dev/swradio0 Software Defined Radio device
1474 191 = /dev/swradio63 Software Defined Radio device
1475 224 = /dev/vbi0 Vertical blank interrupt
1477 255 = /dev/vbi31 Vertical blank interrupt
1479 Minor numbers are allocated dynamically unless
1480 CONFIG_VIDEO_FIXED_MINOR_RANGES (default n)
1481 configuration option is set.
1483 81 block I2O hard disk
1484 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1485 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1487 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1489 Partitions are handled in the same way as for IDE
1490 disks (see major number 3) except that the limit on
1493 82 char WiNRADiO communications receiver card
1494 0 = /dev/winradio0 First WiNRADiO card
1495 1 = /dev/winradio1 Second WiNRADiO card
1498 The driver and documentation may be obtained from
1499 http://www.winradio.com/
1501 82 block I2O hard disk
1502 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1503 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1505 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1507 Partitions are handled in the same way as for IDE
1508 disks (see major number 3) except that the limit on
1511 83 char Matrox mga_vid video driver
1512 0 = /dev/mga_vid0 1st video card
1513 1 = /dev/mga_vid1 2nd video card
1514 2 = /dev/mga_vid2 3rd video card
1516 15 = /dev/mga_vid15 16th video card
1518 83 block I2O hard disk
1519 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1520 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1522 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk
1524 Partitions are handled in the same way as for IDE
1525 disks (see major number 3) except that the limit on
1528 84 char Ikon 1011[57] Versatec Greensheet Interface
1529 0 = /dev/ihcp0 First Greensheet port
1530 1 = /dev/ihcp1 Second Greensheet port
1532 84 block I2O hard disk
1533 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1534 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1536 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1538 Partitions are handled in the same way as for IDE
1539 disks (see major number 3) except that the limit on
1542 85 char Linux/SGI shared memory input queue
1543 0 = /dev/shmiq Master shared input queue
1544 1 = /dev/qcntl0 First device pushed
1545 2 = /dev/qcntl1 Second device pushed
1548 85 block I2O hard disk
1549 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1550 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1552 240 = /dev/i2o/hdcr 96th 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 86 char SCSI media changer
1559 0 = /dev/sch0 First SCSI media changer
1560 1 = /dev/sch1 Second SCSI media changer
1563 86 block I2O hard disk
1564 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1565 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1567 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1569 Partitions are handled in the same way as for IDE
1570 disks (see major number 3) except that the limit on
1573 87 char Sony Control-A1 stereo control bus
1574 0 = /dev/controla0 First device on chain
1575 1 = /dev/controla1 Second device on chain
1578 87 block I2O hard disk
1579 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1580 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1582 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1584 Partitions are handled in the same way as for IDE
1585 disks (see major number 3) except that the limit on
1588 88 char COMX synchronous serial card
1589 0 = /dev/comx0 COMX channel 0
1590 1 = /dev/comx1 COMX channel 1
1593 88 block Seventh IDE hard disk/CD-ROM interface
1594 0 = /dev/hdm Master: whole disk (or CD-ROM)
1595 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1597 Partitions are handled the same way as for the first
1598 interface (see major number 3).
1600 89 char I2C bus interface
1601 0 = /dev/i2c-0 First I2C adapter
1602 1 = /dev/i2c-1 Second I2C adapter
1605 89 block Eighth IDE hard disk/CD-ROM interface
1606 0 = /dev/hdo Master: whole disk (or CD-ROM)
1607 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1609 Partitions are handled the same way as for the first
1610 interface (see major number 3).
1612 90 char Memory Technology Device (RAM, ROM, Flash)
1613 0 = /dev/mtd0 First MTD (rw)
1614 1 = /dev/mtdr0 First MTD (ro)
1616 30 = /dev/mtd15 16th MTD (rw)
1617 31 = /dev/mtdr15 16th MTD (ro)
1619 90 block Ninth IDE hard disk/CD-ROM interface
1620 0 = /dev/hdq Master: whole disk (or CD-ROM)
1621 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1623 Partitions are handled the same way as for the first
1624 interface (see major number 3).
1626 91 char CAN-Bus devices
1627 0 = /dev/can0 First CAN-Bus controller
1628 1 = /dev/can1 Second CAN-Bus controller
1631 91 block Tenth IDE hard disk/CD-ROM interface
1632 0 = /dev/hds Master: whole disk (or CD-ROM)
1633 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1635 Partitions are handled the same way as for the first
1636 interface (see major number 3).
1638 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1640 92 block PPDD encrypted disk driver
1641 0 = /dev/ppdd0 First encrypted disk
1642 1 = /dev/ppdd1 Second encrypted disk
1645 Partitions are handled in the same way as for IDE
1646 disks (see major number 3) except that the limit on
1651 93 block NAND Flash Translation Layer filesystem
1652 0 = /dev/nftla First NFTL layer
1653 16 = /dev/nftlb Second NFTL layer
1655 240 = /dev/nftlp 16th NTFL layer
1659 94 block IBM S/390 DASD block storage
1660 0 = /dev/dasda First DASD device, major
1661 1 = /dev/dasda1 First DASD device, block 1
1662 2 = /dev/dasda2 First DASD device, block 2
1663 3 = /dev/dasda3 First DASD device, block 3
1664 4 = /dev/dasdb Second DASD device, major
1665 5 = /dev/dasdb1 Second DASD device, block 1
1666 6 = /dev/dasdb2 Second DASD device, block 2
1667 7 = /dev/dasdb3 Second DASD device, block 3
1671 0 = /dev/ipl Filter control device/log file
1672 1 = /dev/ipnat NAT control device/log file
1673 2 = /dev/ipstate State information log file
1674 3 = /dev/ipauth Authentication control device/log file
1677 96 char Parallel port ATAPI tape devices
1678 0 = /dev/pt0 First parallel port ATAPI tape
1679 1 = /dev/pt1 Second parallel port ATAPI tape
1681 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1682 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1685 96 block Inverse NAND Flash Translation Layer
1686 0 = /dev/inftla First INFTL layer
1687 16 = /dev/inftlb Second INFTL layer
1689 240 = /dev/inftlp 16th INTFL layer
1691 97 char Parallel port generic ATAPI interface
1692 0 = /dev/pg0 First parallel port ATAPI device
1693 1 = /dev/pg1 Second parallel port ATAPI device
1694 2 = /dev/pg2 Third parallel port ATAPI device
1695 3 = /dev/pg3 Fourth parallel port ATAPI device
1697 These devices support the same API as the generic SCSI
1700 98 char Control and Measurement Device (comedi)
1701 0 = /dev/comedi0 First comedi device
1702 1 = /dev/comedi1 Second comedi device
1705 See http://stm.lbl.gov/comedi.
1707 98 block User-mode virtual block device
1708 0 = /dev/ubda First user-mode block device
1709 16 = /dev/udbb Second user-mode block device
1712 Partitions are handled in the same way as for IDE
1713 disks (see major number 3) except that the limit on
1716 This device is used by the user-mode virtual kernel port.
1718 99 char Raw parallel ports
1719 0 = /dev/parport0 First parallel port
1720 1 = /dev/parport1 Second parallel port
1723 99 block JavaStation flash disk
1724 0 = /dev/jsfd JavaStation flash disk
1726 100 char Telephony for Linux
1727 0 = /dev/phone0 First telephony device
1728 1 = /dev/phone1 Second telephony device
1731 101 char Motorola DSP 56xxx board
1732 0 = /dev/mdspstat Status information
1733 1 = /dev/mdsp1 First DSP board I/O controls
1735 16 = /dev/mdsp16 16th DSP board I/O controls
1737 101 block AMI HyperDisk RAID controller
1738 0 = /dev/amiraid/ar0 First array whole disk
1739 16 = /dev/amiraid/ar1 Second array whole disk
1741 240 = /dev/amiraid/ar15 16th array whole disk
1743 For each device, partitions are added as:
1744 0 = /dev/amiraid/ar? Whole disk
1745 1 = /dev/amiraid/ar?p1 First partition
1746 2 = /dev/amiraid/ar?p2 Second partition
1748 15 = /dev/amiraid/ar?p15 15th partition
1752 102 block Compressed block device
1753 0 = /dev/cbd/a First compressed block device, whole device
1754 16 = /dev/cbd/b Second compressed block device, whole device
1756 240 = /dev/cbd/p 16th compressed block device, whole device
1758 Partitions are handled in the same way as for IDE
1759 disks (see major number 3) except that the limit on
1762 103 char Arla network file system
1763 0 = /dev/nnpfs0 First NNPFS device
1764 1 = /dev/nnpfs1 Second NNPFS device
1766 Arla is a free clone of the Andrew File System, AFS.
1767 The NNPFS device gives user mode filesystem
1768 implementations a kernel presence for caching and easy
1769 mounting. For more information about the project,
1770 write to <arla-drinkers@stacken.kth.se> or see
1771 http://www.stacken.kth.se/project/arla/
1773 103 block Audit device
1774 0 = /dev/audit Audit device
1776 104 char Flash BIOS support
1778 104 block Compaq Next Generation Drive Array, first controller
1779 0 = /dev/cciss/c0d0 First logical drive, whole disk
1780 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1782 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1784 Partitions are handled the same way as for Mylex
1785 DAC960 (see major number 48) except that the limit on
1788 105 char Comtrol VS-1000 serial controller
1789 0 = /dev/ttyV0 First VS-1000 port
1790 1 = /dev/ttyV1 Second VS-1000 port
1793 105 block Compaq Next Generation Drive Array, second controller
1794 0 = /dev/cciss/c1d0 First logical drive, whole disk
1795 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1797 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1799 Partitions are handled the same way as for Mylex
1800 DAC960 (see major number 48) except that the limit on
1803 106 char Comtrol VS-1000 serial controller - alternate devices
1804 0 = /dev/cuv0 First VS-1000 port
1805 1 = /dev/cuv1 Second VS-1000 port
1808 106 block Compaq Next Generation Drive Array, third controller
1809 0 = /dev/cciss/c2d0 First logical drive, whole disk
1810 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1812 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1814 Partitions are handled the same way as for Mylex
1815 DAC960 (see major number 48) except that the limit on
1818 107 char 3Dfx Voodoo Graphics device
1819 0 = /dev/3dfx Primary 3Dfx graphics device
1821 107 block Compaq Next Generation Drive Array, fourth controller
1822 0 = /dev/cciss/c3d0 First logical drive, whole disk
1823 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1825 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1827 Partitions are handled the same way as for Mylex
1828 DAC960 (see major number 48) except that the limit on
1831 108 char Device independent PPP interface
1832 0 = /dev/ppp Device independent PPP interface
1834 108 block Compaq Next Generation Drive Array, fifth controller
1835 0 = /dev/cciss/c4d0 First logical drive, whole disk
1836 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1838 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1840 Partitions are handled the same way as for Mylex
1841 DAC960 (see major number 48) except that the limit on
1844 109 char Reserved for logical volume manager
1846 109 block Compaq Next Generation Drive Array, sixth controller
1847 0 = /dev/cciss/c5d0 First logical drive, whole disk
1848 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1850 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1852 Partitions are handled the same way as for Mylex
1853 DAC960 (see major number 48) except that the limit on
1856 110 char miroMEDIA Surround board
1857 0 = /dev/srnd0 First miroMEDIA Surround board
1858 1 = /dev/srnd1 Second miroMEDIA Surround board
1861 110 block Compaq Next Generation Drive Array, seventh controller
1862 0 = /dev/cciss/c6d0 First logical drive, whole disk
1863 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1865 240 = /dev/cciss/c6d15 16th logical drive, whole disk
1867 Partitions are handled the same way as for Mylex
1868 DAC960 (see major number 48) except that the limit on
1873 111 block Compaq Next Generation Drive Array, eighth controller
1874 0 = /dev/cciss/c7d0 First logical drive, whole disk
1875 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1877 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1879 Partitions are handled the same way as for Mylex
1880 DAC960 (see major number 48) except that the limit on
1883 112 char ISI serial card
1884 0 = /dev/ttyM0 First ISI port
1885 1 = /dev/ttyM1 Second ISI port
1888 There is currently a device-naming conflict between
1889 these and PAM multimodems (major 78).
1891 112 block IBM iSeries virtual disk
1892 0 = /dev/iseries/vda First virtual disk, whole disk
1893 8 = /dev/iseries/vdb Second virtual disk, whole disk
1895 200 = /dev/iseries/vdz 26th virtual disk, whole disk
1896 208 = /dev/iseries/vdaa 27th virtual disk, whole disk
1898 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk
1900 Partitions are handled in the same way as for IDE
1901 disks (see major number 3) except that the limit on
1904 113 char ISI serial card - alternate devices
1905 0 = /dev/cum0 Callout device for ttyM0
1906 1 = /dev/cum1 Callout device for ttyM1
1909 113 block IBM iSeries virtual CD-ROM
1910 0 = /dev/iseries/vcda First virtual CD-ROM
1911 1 = /dev/iseries/vcdb Second virtual CD-ROM
1914 114 char Picture Elements ISE board
1915 0 = /dev/ise0 First ISE board
1916 1 = /dev/ise1 Second ISE board
1918 128 = /dev/isex0 Control node for first ISE board
1919 129 = /dev/isex1 Control node for second ISE board
1922 The ISE board is an embedded computer, optimized for
1923 image processing. The /dev/iseN nodes are the general
1924 I/O access to the board, the /dev/isex0 nodes command
1925 nodes used to control the board.
1927 114 block IDE BIOS powered software RAID interfaces such as the
1931 1 = /dev/ataraid/d0p1
1932 2 = /dev/ataraid/d0p2
1934 16 = /dev/ataraid/d1
1935 17 = /dev/ataraid/d1p1
1936 18 = /dev/ataraid/d1p2
1938 255 = /dev/ataraid/d15p15
1940 Partitions are handled in the same way as for IDE
1941 disks (see major number 3) except that the limit on
1944 115 char TI link cable devices (115 was formerly the console driver speaker)
1945 0 = /dev/tipar0 Parallel cable on first parallel port
1947 7 = /dev/tipar7 Parallel cable on seventh parallel port
1949 8 = /dev/tiser0 Serial cable on first serial port
1951 15 = /dev/tiser7 Serial cable on seventh serial port
1953 16 = /dev/tiusb0 First USB cable
1955 47 = /dev/tiusb31 32nd USB cable
1957 115 block NetWare (NWFS) Devices (0-255)
1959 The NWFS (NetWare) devices are used to present a
1960 collection of NetWare Mirror Groups or NetWare
1961 Partitions as a logical storage segment for
1962 use in mounting NetWare volumes. A maximum of
1963 256 NetWare volumes can be supported in a single
1966 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
1968 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
1969 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
1970 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
1972 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
1974 116 char Advanced Linux Sound Driver (ALSA)
1976 116 block MicroMemory battery backed RAM adapter (NVRAM)
1977 Supports 16 boards, 15 partitions each.
1978 Requested by neilb at cse.unsw.edu.au.
1980 0 = /dev/umem/d0 Whole of first board
1981 1 = /dev/umem/d0p1 First partition of first board
1982 2 = /dev/umem/d0p2 Second partition of first board
1983 15 = /dev/umem/d0p15 15th partition of first board
1985 16 = /dev/umem/d1 Whole of second board
1986 17 = /dev/umem/d1p1 First partition of second board
1988 255= /dev/umem/d15p15 15th partition of 16th board.
1990 117 char COSA/SRP synchronous serial card
1991 0 = /dev/cosa0c0 1st board, 1st channel
1992 1 = /dev/cosa0c1 1st board, 2nd channel
1994 16 = /dev/cosa1c0 2nd board, 1st channel
1995 17 = /dev/cosa1c1 2nd board, 2nd channel
1998 117 block Enterprise Volume Management System (EVMS)
2000 The EVMS driver uses a layered, plug-in model to provide
2001 unparalleled flexibility and extensibility in managing
2002 storage. This allows for easy expansion or customization
2003 of various levels of volume management. Requested by
2004 Mark Peloquin (peloquin at us.ibm.com).
2006 Note: EVMS populates and manages all the devnodes in
2009 http://sf.net/projects/evms
2011 0 = /dev/evms/block_device EVMS block device
2012 1 = /dev/evms/legacyname1 First EVMS legacy device
2013 2 = /dev/evms/legacyname2 Second EVMS legacy device
2015 Both ranges can grow (down or up) until they meet.
2017 254 = /dev/evms/EVMSname2 Second EVMS native device
2018 255 = /dev/evms/EVMSname1 First EVMS native device
2020 Note: legacyname(s) are derived from the normal legacy
2021 device names. For example, /dev/hda5 would become
2024 118 char IBM Cryptographic Accelerator
2025 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators
2026 1 = /dev/ica0 IBMCA Device 0
2027 2 = /dev/ica1 IBMCA Device 1
2030 119 char VMware virtual network control
2031 0 = /dev/vnet0 1st virtual network
2032 1 = /dev/vnet1 2nd virtual network
2035 120-127 char LOCAL/EXPERIMENTAL USE
2037 120-127 block LOCAL/EXPERIMENTAL USE
2038 Allocated for local/experimental use. For devices not
2039 assigned official numbers, these ranges should be
2040 used in order to avoid conflicting with future assignments.
2042 128-135 char Unix98 PTY masters
2044 These devices should not have corresponding device
2045 nodes; instead they should be accessed through the
2046 /dev/ptmx cloning interface.
2048 128 block SCSI disk devices (128-143)
2049 0 = /dev/sddy 129th SCSI disk whole disk
2050 16 = /dev/sddz 130th SCSI disk whole disk
2051 32 = /dev/sdea 131th SCSI disk whole disk
2053 240 = /dev/sden 144th SCSI disk whole disk
2055 Partitions are handled in the same way as for IDE
2056 disks (see major number 3) except that the limit on
2059 129 block SCSI disk devices (144-159)
2060 0 = /dev/sdeo 145th SCSI disk whole disk
2061 16 = /dev/sdep 146th SCSI disk whole disk
2062 32 = /dev/sdeq 147th SCSI disk whole disk
2064 240 = /dev/sdfd 160th SCSI disk whole disk
2066 Partitions are handled in the same way as for IDE
2067 disks (see major number 3) except that the limit on
2070 130 char (Misc devices)
2072 130 block SCSI disk devices (160-175)
2073 0 = /dev/sdfe 161st SCSI disk whole disk
2074 16 = /dev/sdff 162nd SCSI disk whole disk
2075 32 = /dev/sdfg 163rd SCSI disk whole disk
2077 240 = /dev/sdft 176th SCSI disk whole disk
2079 Partitions are handled in the same way as for IDE
2080 disks (see major number 3) except that the limit on
2083 131 block SCSI disk devices (176-191)
2084 0 = /dev/sdfu 177th SCSI disk whole disk
2085 16 = /dev/sdfv 178th SCSI disk whole disk
2086 32 = /dev/sdfw 179th SCSI disk whole disk
2088 240 = /dev/sdgj 192nd SCSI disk whole disk
2090 Partitions are handled in the same way as for IDE
2091 disks (see major number 3) except that the limit on
2094 132 block SCSI disk devices (192-207)
2095 0 = /dev/sdgk 193rd SCSI disk whole disk
2096 16 = /dev/sdgl 194th SCSI disk whole disk
2097 32 = /dev/sdgm 195th SCSI disk whole disk
2099 240 = /dev/sdgz 208th SCSI disk whole disk
2101 Partitions are handled in the same way as for IDE
2102 disks (see major number 3) except that the limit on
2105 133 block SCSI disk devices (208-223)
2106 0 = /dev/sdha 209th SCSI disk whole disk
2107 16 = /dev/sdhb 210th SCSI disk whole disk
2108 32 = /dev/sdhc 211th SCSI disk whole disk
2110 240 = /dev/sdhp 224th SCSI disk whole disk
2112 Partitions are handled in the same way as for IDE
2113 disks (see major number 3) except that the limit on
2116 134 block SCSI disk devices (224-239)
2117 0 = /dev/sdhq 225th SCSI disk whole disk
2118 16 = /dev/sdhr 226th SCSI disk whole disk
2119 32 = /dev/sdhs 227th SCSI disk whole disk
2121 240 = /dev/sdif 240th SCSI disk whole disk
2123 Partitions are handled in the same way as for IDE
2124 disks (see major number 3) except that the limit on
2127 135 block SCSI disk devices (240-255)
2128 0 = /dev/sdig 241st SCSI disk whole disk
2129 16 = /dev/sdih 242nd SCSI disk whole disk
2130 32 = /dev/sdih 243rd SCSI disk whole disk
2132 240 = /dev/sdiv 256th SCSI disk whole disk
2134 Partitions are handled in the same way as for IDE
2135 disks (see major number 3) except that the limit on
2138 136-143 char Unix98 PTY slaves
2139 0 = /dev/pts/0 First Unix98 pseudo-TTY
2140 1 = /dev/pts/1 Second Unix98 pseudo-TTY
2143 These device nodes are automatically generated with
2144 the proper permissions and modes by mounting the
2145 devpts filesystem onto /dev/pts with the appropriate
2146 mount options (distribution dependent, however, on
2147 *most* distributions the appropriate options are
2148 "mode=0620,gid=<gid of the "tty" group>".)
2150 136 block Mylex DAC960 PCI RAID controller; ninth controller
2151 0 = /dev/rd/c8d0 First disk, whole disk
2152 8 = /dev/rd/c8d1 Second disk, whole disk
2154 248 = /dev/rd/c8d31 32nd disk, whole disk
2156 Partitions are handled as for major 48.
2158 137 block Mylex DAC960 PCI RAID controller; tenth controller
2159 0 = /dev/rd/c9d0 First disk, whole disk
2160 8 = /dev/rd/c9d1 Second disk, whole disk
2162 248 = /dev/rd/c9d31 32nd disk, whole disk
2164 Partitions are handled as for major 48.
2166 138 block Mylex DAC960 PCI RAID controller; eleventh controller
2167 0 = /dev/rd/c10d0 First disk, whole disk
2168 8 = /dev/rd/c10d1 Second disk, whole disk
2170 248 = /dev/rd/c10d31 32nd disk, whole disk
2172 Partitions are handled as for major 48.
2174 139 block Mylex DAC960 PCI RAID controller; twelfth controller
2175 0 = /dev/rd/c11d0 First disk, whole disk
2176 8 = /dev/rd/c11d1 Second disk, whole disk
2178 248 = /dev/rd/c11d31 32nd disk, whole disk
2180 Partitions are handled as for major 48.
2182 140 block Mylex DAC960 PCI RAID controller; thirteenth controller
2183 0 = /dev/rd/c12d0 First disk, whole disk
2184 8 = /dev/rd/c12d1 Second disk, whole disk
2186 248 = /dev/rd/c12d31 32nd disk, whole disk
2188 Partitions are handled as for major 48.
2190 141 block Mylex DAC960 PCI RAID controller; fourteenth controller
2191 0 = /dev/rd/c13d0 First disk, whole disk
2192 8 = /dev/rd/c13d1 Second disk, whole disk
2194 248 = /dev/rd/c13d31 32nd disk, whole disk
2196 Partitions are handled as for major 48.
2198 142 block Mylex DAC960 PCI RAID controller; fifteenth controller
2199 0 = /dev/rd/c14d0 First disk, whole disk
2200 8 = /dev/rd/c14d1 Second disk, whole disk
2202 248 = /dev/rd/c14d31 32nd disk, whole disk
2204 Partitions are handled as for major 48.
2206 143 block Mylex DAC960 PCI RAID controller; sixteenth controller
2207 0 = /dev/rd/c15d0 First disk, whole disk
2208 8 = /dev/rd/c15d1 Second disk, whole disk
2210 248 = /dev/rd/c15d31 32nd disk, whole disk
2212 Partitions are handled as for major 48.
2214 144 char Encapsulated PPP
2215 0 = /dev/pppox0 First PPP over Ethernet
2217 63 = /dev/pppox63 64th PPP over Ethernet
2219 This is primarily used for ADSL.
2221 The SST 5136-DN DeviceNet interface driver has been
2222 relocated to major 183 due to an unfortunate conflict.
2224 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
2225 0 = mounted device 256
2226 255 = mounted device 511
2228 145 char SAM9407-based soundcard
2230 1 = /dev/sam0_sequencer
2231 2 = /dev/sam0_midi00
2234 6 = /dev/sam0_sndstat
2235 18 = /dev/sam0_midi01
2236 34 = /dev/sam0_midi02
2237 50 = /dev/sam0_midi03
2238 64 = /dev/sam1_mixer
2240 128 = /dev/sam2_mixer
2242 192 = /dev/sam3_mixer
2245 Device functions match OSS, but offer a number of
2246 addons, which are sam9407 specific. OSS can be
2247 operated simultaneously, taking care of the codec.
2249 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
2250 0 = mounted device 512
2251 255 = mounted device 767
2253 146 char SYSTRAM SCRAMNet mirrored-memory network
2254 0 = /dev/scramnet0 First SCRAMNet device
2255 1 = /dev/scramnet1 Second SCRAMNet device
2258 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
2259 0 = mounted device 768
2260 255 = mounted device 1023
2262 147 char Aureal Semiconductor Vortex Audio device
2263 0 = /dev/aureal0 First Aureal Vortex
2264 1 = /dev/aureal1 Second Aureal Vortex
2267 147 block Distributed Replicated Block Device (DRBD)
2268 0 = /dev/drbd0 First DRBD device
2269 1 = /dev/drbd1 Second DRBD device
2272 148 char Technology Concepts serial card
2273 0 = /dev/ttyT0 First TCL port
2274 1 = /dev/ttyT1 Second TCL port
2277 149 char Technology Concepts serial card - alternate devices
2278 0 = /dev/cut0 Callout device for ttyT0
2279 1 = /dev/cut0 Callout device for ttyT1
2282 150 char Real-Time Linux FIFOs
2283 0 = /dev/rtf0 First RTLinux FIFO
2284 1 = /dev/rtf1 Second RTLinux FIFO
2287 151 char DPT I2O SmartRaid V controller
2288 0 = /dev/dpti0 First DPT I2O adapter
2289 1 = /dev/dpti1 Second DPT I2O adapter
2292 152 char EtherDrive Control Device
2293 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive
2294 1 = /dev/etherd/err Monitor errors
2295 2 = /dev/etherd/raw Raw AoE packet monitor
2297 152 block EtherDrive Block Devices
2298 0 = /dev/etherd/0 EtherDrive 0
2300 255 = /dev/etherd/255 EtherDrive 255
2302 153 char SPI Bus Interface (sometimes referred to as MicroWire)
2303 0 = /dev/spi0 First SPI device on the bus
2304 1 = /dev/spi1 Second SPI device on the bus
2306 15 = /dev/spi15 Sixteenth SPI device on the bus
2308 153 block Enhanced Metadisk RAID (EMD) storage units
2309 0 = /dev/emd/0 First unit
2310 1 = /dev/emd/0p1 Partition 1 on First unit
2311 2 = /dev/emd/0p2 Partition 2 on First unit
2313 15 = /dev/emd/0p15 Partition 15 on First unit
2315 16 = /dev/emd/1 Second unit
2316 32 = /dev/emd/2 Third unit
2318 240 = /dev/emd/15 Sixteenth unit
2320 Partitions are handled in the same way as for IDE
2321 disks (see major number 3) except that the limit on
2324 154 char Specialix RIO serial card
2325 0 = /dev/ttySR0 First RIO port
2327 255 = /dev/ttySR255 256th RIO port
2329 155 char Specialix RIO serial card - alternate devices
2330 0 = /dev/cusr0 Callout device for ttySR0
2332 255 = /dev/cusr255 Callout device for ttySR255
2334 156 char Specialix RIO serial card
2335 0 = /dev/ttySR256 257th RIO port
2337 255 = /dev/ttySR511 512th RIO port
2339 157 char Specialix RIO serial card - alternate devices
2340 0 = /dev/cusr256 Callout device for ttySR256
2342 255 = /dev/cusr511 Callout device for ttySR511
2344 158 char Dialogic GammaLink fax driver
2345 0 = /dev/gfax0 GammaLink channel 0
2346 1 = /dev/gfax1 GammaLink channel 1
2353 160 char General Purpose Instrument Bus (GPIB)
2354 0 = /dev/gpib0 First GPIB bus
2355 1 = /dev/gpib1 Second GPIB bus
2358 160 block Carmel 8-port SATA Disks on First Controller
2359 0 = /dev/carmel/0 SATA disk 0 whole disk
2360 1 = /dev/carmel/0p1 SATA disk 0 partition 1
2362 31 = /dev/carmel/0p31 SATA disk 0 partition 31
2364 32 = /dev/carmel/1 SATA disk 1 whole disk
2365 64 = /dev/carmel/2 SATA disk 2 whole disk
2367 224 = /dev/carmel/7 SATA disk 7 whole disk
2369 Partitions are handled in the same way as for IDE
2370 disks (see major number 3) except that the limit on
2373 161 char IrCOMM devices (IrDA serial/parallel emulation)
2374 0 = /dev/ircomm0 First IrCOMM device
2375 1 = /dev/ircomm1 Second IrCOMM device
2377 16 = /dev/irlpt0 First IrLPT device
2378 17 = /dev/irlpt1 Second IrLPT device
2381 161 block Carmel 8-port SATA Disks on Second Controller
2382 0 = /dev/carmel/8 SATA disk 8 whole disk
2383 1 = /dev/carmel/8p1 SATA disk 8 partition 1
2385 31 = /dev/carmel/8p31 SATA disk 8 partition 31
2387 32 = /dev/carmel/9 SATA disk 9 whole disk
2388 64 = /dev/carmel/10 SATA disk 10 whole disk
2390 224 = /dev/carmel/15 SATA disk 15 whole disk
2392 Partitions are handled in the same way as for IDE
2393 disks (see major number 3) except that the limit on
2396 162 char Raw block device interface
2397 0 = /dev/rawctl Raw I/O control device
2398 1 = /dev/raw/raw1 First raw I/O device
2399 2 = /dev/raw/raw2 Second raw I/O device
2401 max minor number of raw device is set by kernel config
2402 MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
2406 164 char Chase Research AT/PCI-Fast serial card
2407 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2409 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2410 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2412 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2413 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2415 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2416 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2418 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2420 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2421 0 = /dev/cuch0 Callout device for ttyCH0
2423 63 = /dev/cuch63 Callout device for ttyCH63
2425 166 char ACM USB modems
2426 0 = /dev/ttyACM0 First ACM modem
2427 1 = /dev/ttyACM1 Second ACM modem
2430 167 char ACM USB modems - alternate devices
2431 0 = /dev/cuacm0 Callout device for ttyACM0
2432 1 = /dev/cuacm1 Callout device for ttyACM1
2435 168 char Eracom CSA7000 PCI encryption adaptor
2436 0 = /dev/ecsa0 First CSA7000
2437 1 = /dev/ecsa1 Second CSA7000
2440 169 char Eracom CSA8000 PCI encryption adaptor
2441 0 = /dev/ecsa8-0 First CSA8000
2442 1 = /dev/ecsa8-1 Second CSA8000
2445 170 char AMI MegaRAC remote access controller
2446 0 = /dev/megarac0 First MegaRAC card
2447 1 = /dev/megarac1 Second MegaRAC card
2450 171 char Reserved for IEEE 1394 (Firewire)
2452 172 char Moxa Intellio serial card
2453 0 = /dev/ttyMX0 First Moxa port
2454 1 = /dev/ttyMX1 Second Moxa port
2456 127 = /dev/ttyMX127 128th Moxa port
2457 128 = /dev/moxactl Moxa control port
2459 173 char Moxa Intellio serial card - alternate devices
2460 0 = /dev/cumx0 Callout device for ttyMX0
2461 1 = /dev/cumx1 Callout device for ttyMX1
2463 127 = /dev/cumx127 Callout device for ttyMX127
2465 174 char SmartIO serial card
2466 0 = /dev/ttySI0 First SmartIO port
2467 1 = /dev/ttySI1 Second SmartIO port
2470 175 char SmartIO serial card - alternate devices
2471 0 = /dev/cusi0 Callout device for ttySI0
2472 1 = /dev/cusi1 Callout device for ttySI1
2475 176 char nCipher nFast PCI crypto accelerator
2476 0 = /dev/nfastpci0 First nFast PCI device
2477 1 = /dev/nfastpci1 First nFast PCI device
2480 177 char TI PCILynx memory spaces
2481 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2483 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2484 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2486 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2487 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2489 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2491 178 char Giganet cLAN1xxx virtual interface adapter
2492 0 = /dev/clanvi0 First cLAN adapter
2493 1 = /dev/clanvi1 Second cLAN adapter
2496 179 block MMC block devices
2497 0 = /dev/mmcblk0 First SD/MMC card
2498 1 = /dev/mmcblk0p1 First partition on first MMC card
2499 8 = /dev/mmcblk1 Second SD/MMC card
2502 The start of next SD/MMC card can be configured with
2503 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe
2504 time using the mmcblk.perdev_minors option. That would
2505 bump the offset between each card to be the configured
2506 value instead of the default 8.
2508 179 char CCube DVXChip-based PCI products
2509 0 = /dev/dvxirq0 First DVX device
2510 1 = /dev/dvxirq1 Second DVX device
2513 180 char USB devices
2514 0 = /dev/usb/lp0 First USB printer
2516 15 = /dev/usb/lp15 16th USB printer
2517 48 = /dev/usb/scanner0 First USB scanner
2519 63 = /dev/usb/scanner15 16th USB scanner
2520 64 = /dev/usb/rio500 Diamond Rio 500
2521 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de)
2522 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD)
2523 96 = /dev/usb/hiddev0 1st USB HID device
2525 111 = /dev/usb/hiddev15 16th USB HID device
2526 112 = /dev/usb/auer0 1st auerswald ISDN device
2528 127 = /dev/usb/auer15 16th auerswald ISDN device
2529 128 = /dev/usb/brlvgr0 First Braille Voyager device
2531 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device
2532 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device
2533 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device
2535 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device
2536 144 = /dev/usb/lcd USB LCD device
2537 160 = /dev/usb/legousbtower0 1st USB Legotower device
2539 175 = /dev/usb/legousbtower15 16th USB Legotower device
2540 176 = /dev/usb/usbtmc1 First USB TMC device
2542 191 = /dev/usb/usbtmc16 16th USB TMC device
2543 192 = /dev/usb/yurex1 First USB Yurex device
2545 209 = /dev/usb/yurex16 16th USB Yurex device
2547 180 block USB block devices
2548 0 = /dev/uba First USB block device
2549 8 = /dev/ubb Second USB block device
2550 16 = /dev/ubc Third USB block device
2553 181 char Conrad Electronic parallel port radio clocks
2554 0 = /dev/pcfclock0 First Conrad radio clock
2555 1 = /dev/pcfclock1 Second Conrad radio clock
2558 182 char Picture Elements THR2 binarizer
2559 0 = /dev/pethr0 First THR2 board
2560 1 = /dev/pethr1 Second THR2 board
2563 183 char SST 5136-DN DeviceNet interface
2564 0 = /dev/ss5136dn0 First DeviceNet interface
2565 1 = /dev/ss5136dn1 Second DeviceNet interface
2568 This device used to be assigned to major number 144.
2569 It had to be moved due to an unfortunate conflict.
2571 184 char Picture Elements' video simulator/sender
2572 0 = /dev/pevss0 First sender board
2573 1 = /dev/pevss1 Second sender board
2576 185 char InterMezzo high availability file system
2577 0 = /dev/intermezzo0 First cache manager
2578 1 = /dev/intermezzo1 Second cache manager
2581 See http://web.archive.org/web/20080115195241/
2582 http://inter-mezzo.org/index.html
2584 186 char Object-based storage control device
2585 0 = /dev/obd0 First obd control device
2586 1 = /dev/obd1 Second obd control device
2589 See ftp://ftp.lustre.org/pub/obd for code and information.
2591 187 char DESkey hardware encryption device
2592 0 = /dev/deskey0 First DES key
2593 1 = /dev/deskey1 Second DES key
2596 188 char USB serial converters
2597 0 = /dev/ttyUSB0 First USB serial converter
2598 1 = /dev/ttyUSB1 Second USB serial converter
2601 189 char USB serial converters - alternate devices
2602 0 = /dev/cuusb0 Callout device for ttyUSB0
2603 1 = /dev/cuusb1 Callout device for ttyUSB1
2606 190 char Kansas City tracker/tuner card
2607 0 = /dev/kctt0 First KCT/T card
2608 1 = /dev/kctt1 Second KCT/T card
2611 191 char Reserved for PCMCIA
2613 192 char Kernel profiling interface
2614 0 = /dev/profile Profiling control device
2615 1 = /dev/profile0 Profiling device for CPU 0
2616 2 = /dev/profile1 Profiling device for CPU 1
2619 193 char Kernel event-tracing interface
2620 0 = /dev/trace Tracing control device
2621 1 = /dev/trace0 Tracing device for CPU 0
2622 2 = /dev/trace1 Tracing device for CPU 1
2625 194 char linVideoStreams (LINVS)
2626 0 = /dev/mvideo/status0 Video compression status
2627 1 = /dev/mvideo/stream0 Video stream
2628 2 = /dev/mvideo/frame0 Single compressed frame
2629 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2630 4 = /dev/mvideo/codec0 Direct codec access
2631 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2633 16 = /dev/mvideo/status1 Second device
2635 32 = /dev/mvideo/status2 Third device
2638 240 = /dev/mvideo/status15 16th device
2641 195 char Nvidia graphics devices
2642 0 = /dev/nvidia0 First Nvidia card
2643 1 = /dev/nvidia1 Second Nvidia card
2645 255 = /dev/nvidiactl Nvidia card control device
2647 196 char Tormenta T1 card
2648 0 = /dev/tor/0 Master control channel for all cards
2649 1 = /dev/tor/1 First DS0
2650 2 = /dev/tor/2 Second DS0
2652 48 = /dev/tor/48 48th DS0
2653 49 = /dev/tor/49 First pseudo-channel
2654 50 = /dev/tor/50 Second pseudo-channel
2657 197 char OpenTNF tracing facility
2658 0 = /dev/tnf/t0 Trace 0 data extraction
2659 1 = /dev/tnf/t1 Trace 1 data extraction
2661 128 = /dev/tnf/status Tracing facility status
2662 130 = /dev/tnf/trace Tracing device
2664 198 char Total Impact TPMP2 quad coprocessor PCI card
2665 0 = /dev/tpmp2/0 First card
2666 1 = /dev/tpmp2/1 Second card
2669 199 char Veritas volume manager (VxVM) volumes
2670 0 = /dev/vx/rdsk/*/* First volume
2671 1 = /dev/vx/rdsk/*/* Second volume
2674 199 block Veritas volume manager (VxVM) volumes
2675 0 = /dev/vx/dsk/*/* First volume
2676 1 = /dev/vx/dsk/*/* Second volume
2679 The namespace in these directories is maintained by
2680 the user space VxVM software.
2682 200 char Veritas VxVM configuration interface
2683 0 = /dev/vx/config Configuration access node
2684 1 = /dev/vx/trace Volume i/o trace access node
2685 2 = /dev/vx/iod Volume i/o daemon access node
2686 3 = /dev/vx/info Volume information access node
2687 4 = /dev/vx/task Volume tasks access node
2688 5 = /dev/vx/taskmon Volume tasks monitor daemon
2690 201 char Veritas VxVM dynamic multipathing driver
2691 0 = /dev/vx/rdmp/* First multipath device
2692 1 = /dev/vx/rdmp/* Second multipath device
2694 201 block Veritas VxVM dynamic multipathing driver
2695 0 = /dev/vx/dmp/* First multipath device
2696 1 = /dev/vx/dmp/* Second multipath device
2699 The namespace in these directories is maintained by
2700 the user space VxVM software.
2702 202 char CPU model-specific registers
2703 0 = /dev/cpu/0/msr MSRs on CPU 0
2704 1 = /dev/cpu/1/msr MSRs on CPU 1
2707 202 block Xen Virtual Block Device
2708 0 = /dev/xvda First Xen VBD whole disk
2709 16 = /dev/xvdb Second Xen VBD whole disk
2710 32 = /dev/xvdc Third Xen VBD whole disk
2712 240 = /dev/xvdp Sixteenth Xen VBD whole disk
2714 Partitions are handled in the same way as for IDE
2715 disks (see major number 3) except that the limit on
2718 203 char CPU CPUID information
2719 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2720 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2723 204 char Low-density serial ports
2724 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2725 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2726 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2727 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2728 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2729 5 = /dev/ttySA0 StrongARM builtin serial port 0
2730 6 = /dev/ttySA1 StrongARM builtin serial port 1
2731 7 = /dev/ttySA2 StrongARM builtin serial port 2
2732 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2733 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2734 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2735 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2736 12 = /dev/ttyFW0 Firmware console - port 0
2737 13 = /dev/ttyFW1 Firmware console - port 1
2738 14 = /dev/ttyFW2 Firmware console - port 2
2739 15 = /dev/ttyFW3 Firmware console - port 3
2740 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2742 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2743 32 = /dev/ttyDB0 DataBooster serial port 0
2745 39 = /dev/ttyDB7 DataBooster serial port 7
2746 40 = /dev/ttySG0 SGI Altix console port
2747 41 = /dev/ttySMX0 Motorola i.MX - port 0
2748 42 = /dev/ttySMX1 Motorola i.MX - port 1
2749 43 = /dev/ttySMX2 Motorola i.MX - port 2
2750 44 = /dev/ttyMM0 Marvell MPSC - port 0
2751 45 = /dev/ttyMM1 Marvell MPSC - port 1
2752 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0
2754 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
2755 50 = /dev/ttyIOC0 Altix serial card
2757 81 = /dev/ttyIOC31 Altix serial card
2758 82 = /dev/ttyVR0 NEC VR4100 series SIU
2759 83 = /dev/ttyVR1 NEC VR4100 series DSIU
2760 84 = /dev/ttyIOC84 Altix ioc4 serial card
2762 115 = /dev/ttyIOC115 Altix ioc4 serial card
2763 116 = /dev/ttySIOC0 Altix ioc3 serial card
2765 147 = /dev/ttySIOC31 Altix ioc3 serial card
2766 148 = /dev/ttyPSC0 PPC PSC - port 0
2768 153 = /dev/ttyPSC5 PPC PSC - port 5
2769 154 = /dev/ttyAT0 ATMEL serial port 0
2771 169 = /dev/ttyAT15 ATMEL serial port 15
2772 170 = /dev/ttyNX0 Hilscher netX serial port 0
2774 185 = /dev/ttyNX15 Hilscher netX serial port 15
2775 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
2776 187 = /dev/ttyUL0 Xilinx uartlite - port 0
2778 190 = /dev/ttyUL3 Xilinx uartlite - port 3
2779 191 = /dev/xvc0 Xen virtual console - port 0
2780 192 = /dev/ttyPZ0 pmac_zilog - port 0
2782 195 = /dev/ttyPZ3 pmac_zilog - port 3
2783 196 = /dev/ttyTX0 TX39/49 serial port 0
2785 204 = /dev/ttyTX7 TX39/49 serial port 7
2786 205 = /dev/ttySC0 SC26xx serial port 0
2787 206 = /dev/ttySC1 SC26xx serial port 1
2788 207 = /dev/ttySC2 SC26xx serial port 2
2789 208 = /dev/ttySC3 SC26xx serial port 3
2790 209 = /dev/ttyMAX0 MAX3100 serial port 0
2791 210 = /dev/ttyMAX1 MAX3100 serial port 1
2792 211 = /dev/ttyMAX2 MAX3100 serial port 2
2793 212 = /dev/ttyMAX3 MAX3100 serial port 3
2795 205 char Low-density serial ports (alternate device)
2796 0 = /dev/culu0 Callout device for ttyLU0
2797 1 = /dev/culu1 Callout device for ttyLU1
2798 2 = /dev/culu2 Callout device for ttyLU2
2799 3 = /dev/culu3 Callout device for ttyLU3
2800 4 = /dev/cufb0 Callout device for ttyFB0
2801 5 = /dev/cusa0 Callout device for ttySA0
2802 6 = /dev/cusa1 Callout device for ttySA1
2803 7 = /dev/cusa2 Callout device for ttySA2
2804 8 = /dev/cusc0 Callout device for ttySC0
2805 9 = /dev/cusc1 Callout device for ttySC1
2806 10 = /dev/cusc2 Callout device for ttySC2
2807 11 = /dev/cusc3 Callout device for ttySC3
2808 12 = /dev/cufw0 Callout device for ttyFW0
2809 13 = /dev/cufw1 Callout device for ttyFW1
2810 14 = /dev/cufw2 Callout device for ttyFW2
2811 15 = /dev/cufw3 Callout device for ttyFW3
2812 16 = /dev/cuam0 Callout device for ttyAM0
2814 31 = /dev/cuam15 Callout device for ttyAM15
2815 32 = /dev/cudb0 Callout device for ttyDB0
2817 39 = /dev/cudb7 Callout device for ttyDB7
2818 40 = /dev/cusg0 Callout device for ttySG0
2819 41 = /dev/ttycusmx0 Callout device for ttySMX0
2820 42 = /dev/ttycusmx1 Callout device for ttySMX1
2821 43 = /dev/ttycusmx2 Callout device for ttySMX2
2822 46 = /dev/cucpm0 Callout device for ttyCPM0
2824 49 = /dev/cucpm5 Callout device for ttyCPM5
2825 50 = /dev/cuioc40 Callout device for ttyIOC40
2827 81 = /dev/cuioc431 Callout device for ttyIOC431
2828 82 = /dev/cuvr0 Callout device for ttyVR0
2829 83 = /dev/cuvr1 Callout device for ttyVR1
2831 206 char OnStream SC-x0 tape devices
2832 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2833 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2835 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2836 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2838 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2839 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2841 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2842 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2844 128 = /dev/nosst0 No rewind version of /dev/osst0
2845 129 = /dev/nosst1 No rewind version of /dev/osst1
2847 160 = /dev/nosst0l No rewind version of /dev/osst0l
2848 161 = /dev/nosst1l No rewind version of /dev/osst1l
2850 192 = /dev/nosst0m No rewind version of /dev/osst0m
2851 193 = /dev/nosst1m No rewind version of /dev/osst1m
2853 224 = /dev/nosst0a No rewind version of /dev/osst0a
2854 225 = /dev/nosst1a No rewind version of /dev/osst1a
2857 The OnStream SC-x0 SCSI tapes do not support the
2858 standard SCSI SASD command set and therefore need
2859 their own driver "osst". Note that the IDE, USB (and
2860 maybe ParPort) versions may be driven via ide-scsi or
2861 usb-storage SCSI emulation and this osst device and
2862 driver as well. The ADR-x0 drives are QIC-157
2863 compliant and don't need osst.
2865 207 char Compaq ProLiant health feature indicate
2866 0 = /dev/cpqhealth/cpqw Redirector interface
2867 1 = /dev/cpqhealth/crom EISA CROM
2868 2 = /dev/cpqhealth/cdt Data Table
2869 3 = /dev/cpqhealth/cevt Event Log
2870 4 = /dev/cpqhealth/casr Automatic Server Recovery
2871 5 = /dev/cpqhealth/cecc ECC Memory
2872 6 = /dev/cpqhealth/cmca Machine Check Architecture
2873 7 = /dev/cpqhealth/ccsm Deprecated CDT
2874 8 = /dev/cpqhealth/cnmi NMI Handling
2875 9 = /dev/cpqhealth/css Sideshow Management
2876 10 = /dev/cpqhealth/cram CMOS interface
2877 11 = /dev/cpqhealth/cpci PCI IRQ interface
2879 208 char User space serial ports
2880 0 = /dev/ttyU0 First user space serial port
2881 1 = /dev/ttyU1 Second user space serial port
2884 209 char User space serial ports (alternate devices)
2885 0 = /dev/cuu0 Callout device for ttyU0
2886 1 = /dev/cuu1 Callout device for ttyU1
2889 210 char SBE, Inc. sync/async serial card
2890 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2891 1 = /dev/sbei/dld0 Download device for board 0
2892 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2893 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2894 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2895 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2896 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2897 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2898 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2899 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2900 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2901 11 = /dev/sbei/dld1 Download device for board 1
2902 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2903 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2904 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2905 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2906 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2907 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2908 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2909 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2912 Yes, each board is really spaced 10 (decimal) apart.
2914 211 char Addinum CPCI1500 digital I/O card
2915 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2916 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2919 212 char LinuxTV.org DVB driver subsystem
2920 0 = /dev/dvb/adapter0/video0 first video decoder of first card
2921 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card
2922 2 = /dev/dvb/adapter0/sec0 (obsolete/unused)
2923 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card
2924 4 = /dev/dvb/adapter0/demux0 first demux device of first card
2925 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card
2926 6 = /dev/dvb/adapter0/ca0 first common access port of first card
2927 7 = /dev/dvb/adapter0/net0 first network device of first card
2928 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card
2929 9 = /dev/dvb/adapter0/video1 second video decoder of first card
2931 64 = /dev/dvb/adapter1/video0 first video decoder of second card
2933 128 = /dev/dvb/adapter2/video0 first video decoder of third card
2935 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card
2937 216 char Bluetooth RFCOMM TTY devices
2938 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device
2939 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device
2942 217 char Bluetooth RFCOMM TTY devices (alternate devices)
2943 0 = /dev/curf0 Callout device for rfcomm0
2944 1 = /dev/curf1 Callout device for rfcomm1
2947 218 char The Logical Company bus Unibus/Qbus adapters
2948 0 = /dev/logicalco/bci/0 First bus adapter
2949 1 = /dev/logicalco/bci/1 First bus adapter
2952 219 char The Logical Company DCI-1300 digital I/O card
2953 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2954 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2957 220 char Myricom Myrinet "GM" board
2958 0 = /dev/myricom/gm0 First Myrinet GM board
2959 1 = /dev/myricom/gmp0 First board "root access"
2960 2 = /dev/myricom/gm1 Second Myrinet GM board
2961 3 = /dev/myricom/gmp1 Second board "root access"
2965 0 = /dev/bus/vme/m0 First master image
2966 1 = /dev/bus/vme/m1 Second master image
2967 2 = /dev/bus/vme/m2 Third master image
2968 3 = /dev/bus/vme/m3 Fourth master image
2969 4 = /dev/bus/vme/s0 First slave image
2970 5 = /dev/bus/vme/s1 Second slave image
2971 6 = /dev/bus/vme/s2 Third slave image
2972 7 = /dev/bus/vme/s3 Fourth slave image
2973 8 = /dev/bus/vme/ctl Control
2975 It is expected that all VME bus drivers will use the
2976 same interface. For interface documentation see
2977 http://www.vmelinux.org/.
2979 224 char A2232 serial card
2980 0 = /dev/ttyY0 First A2232 port
2981 1 = /dev/ttyY1 Second A2232 port
2984 225 char A2232 serial card (alternate devices)
2985 0 = /dev/cuy0 Callout device for ttyY0
2986 1 = /dev/cuy1 Callout device for ttyY1
2989 226 char Direct Rendering Infrastructure (DRI)
2990 0 = /dev/dri/card0 First graphics card
2991 1 = /dev/dri/card1 Second graphics card
2994 227 char IBM 3270 terminal Unix tty access
2995 1 = /dev/3270/tty1 First 3270 terminal
2996 2 = /dev/3270/tty2 Seconds 3270 terminal
2999 228 char IBM 3270 terminal block-mode access
3000 0 = /dev/3270/tub Controlling interface
3001 1 = /dev/3270/tub1 First 3270 terminal
3002 2 = /dev/3270/tub2 Second 3270 terminal
3005 229 char IBM iSeries/pSeries virtual console
3006 0 = /dev/hvc0 First console port
3007 1 = /dev/hvc1 Second console port
3010 230 char IBM iSeries virtual tape
3011 0 = /dev/iseries/vt0 First virtual tape, mode 0
3012 1 = /dev/iseries/vt1 Second virtual tape, mode 0
3014 32 = /dev/iseries/vt0l First virtual tape, mode 1
3015 33 = /dev/iseries/vt1l Second virtual tape, mode 1
3017 64 = /dev/iseries/vt0m First virtual tape, mode 2
3018 65 = /dev/iseries/vt1m Second virtual tape, mode 2
3020 96 = /dev/iseries/vt0a First virtual tape, mode 3
3021 97 = /dev/iseries/vt1a Second virtual tape, mode 3
3023 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind
3024 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind
3026 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind
3027 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind
3029 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind
3030 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind
3032 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind
3033 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind
3036 "No rewind" refers to the omission of the default
3037 automatic rewind on device close. The MTREW or MTOFFL
3038 ioctl()'s can be used to rewind the tape regardless of
3039 the device used to access it.
3042 0 = /dev/infiniband/umad0
3043 1 = /dev/infiniband/umad1
3045 63 = /dev/infiniband/umad63 63rd InfiniBandMad device
3046 64 = /dev/infiniband/issm0 First InfiniBand IsSM device
3047 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device
3049 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device
3050 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device
3051 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device
3053 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device
3055 232 char Biometric Devices
3056 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device
3057 1 = /dev/biometric/sensor0/iris first iris sensor on first device
3058 2 = /dev/biometric/sensor0/retina first retina sensor on first device
3059 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device
3060 4 = /dev/biometric/sensor0/facial first facial sensor on first device
3061 5 = /dev/biometric/sensor0/hand first hand sensor on first device
3063 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device
3065 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device
3068 233 char PathScale InfiniPath interconnect
3069 0 = /dev/ipath Primary device for programs (any unit)
3070 1 = /dev/ipath0 Access specifically to unit 0
3071 2 = /dev/ipath1 Access specifically to unit 1
3073 4 = /dev/ipath3 Access specifically to unit 3
3074 129 = /dev/ipath_sma Device used by Subnet Management Agent
3075 130 = /dev/ipath_diag Device used by diagnostics programs
3077 234-254 char RESERVED FOR DYNAMIC ASSIGNMENT
3078 Character devices that request a dynamic allocation of major number will
3079 take numbers starting from 254 and downward.
3081 240-254 block LOCAL/EXPERIMENTAL USE
3082 Allocated for local/experimental use. For devices not
3083 assigned official numbers, these ranges should be
3084 used in order to avoid conflicting with future assignments.
3090 This major is reserved to assist the expansion to a
3091 larger number space. No device nodes with this major
3092 should ever be created on the filesystem.
3093 (This is probably not true anymore, but I'll leave it
3096 ---LARGE MAJORS!!!!!---
3098 256 char Equinox SST multi-port serial boards
3099 0 = /dev/ttyEQ0 First serial port on first Equinox SST board
3100 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board
3101 128 = /dev/ttyEQ128 First serial port on second Equinox SST board
3103 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board
3105 256 block Resident Flash Disk Flash Translation Layer
3106 0 = /dev/rfda First RFD FTL layer
3107 16 = /dev/rfdb Second RFD FTL layer
3109 240 = /dev/rfdp 16th RFD FTL layer
3111 257 char Phoenix Technologies Cryptographic Services Driver
3112 0 = /dev/ptlsec Crypto Services Driver
3114 257 block SSFDC Flash Translation Layer filesystem
3115 0 = /dev/ssfdca First SSFDC layer
3116 8 = /dev/ssfdcb Second SSFDC layer
3117 16 = /dev/ssfdcc Third SSFDC layer
3118 24 = /dev/ssfdcd 4th SSFDC layer
3119 32 = /dev/ssfdce 5th SSFDC layer
3120 40 = /dev/ssfdcf 6th SSFDC layer
3121 48 = /dev/ssfdcg 7th SSFDC layer
3122 56 = /dev/ssfdch 8th SSFDC layer
3124 258 block ROM/Flash read-only translation layer
3125 0 = /dev/blockrom0 First ROM card's translation layer interface
3126 1 = /dev/blockrom1 Second ROM card's translation layer interface
3129 259 block Block Extended Major
3130 Used dynamically to hold additional partition minor
3131 numbers and allow large numbers of partitions per device
3133 259 char FPGA configuration interfaces
3134 0 = /dev/icap0 First Xilinx internal configuration
3135 1 = /dev/icap1 Second Xilinx internal configuration
3137 260 char OSD (Object-based-device) SCSI Device
3138 0 = /dev/osd0 First OSD Device
3139 1 = /dev/osd1 Second OSD Device
3141 255 = /dev/osd255 256th OSD Device
3144 Additional ``/dev/`` directory entries
3145 --------------------------------------
3147 This section details additional entries that should or may exist in
3148 the /dev directory. It is preferred that symbolic links use the same
3149 form (absolute or relative) as is indicated here. Links are
3150 classified as "hard" or "symbolic" depending on the preferred type of
3151 link; if possible, the indicated type of link should be used.
3156 These links should exist on all systems:
3158 =============== =============== =============== ===============================
3159 /dev/fd /proc/self/fd symbolic File descriptors
3160 /dev/stdin fd/0 symbolic stdin file descriptor
3161 /dev/stdout fd/1 symbolic stdout file descriptor
3162 /dev/stderr fd/2 symbolic stderr file descriptor
3163 /dev/nfsd socksys symbolic Required by iBCS-2
3164 /dev/X0R null symbolic Required by iBCS-2
3165 =============== =============== =============== ===============================
3167 Note: ``/dev/X0R`` is <letter X>-<digit 0>-<letter R>.
3172 It is recommended that these links exist on all systems:
3175 =============== =============== =============== ===============================
3176 /dev/core /proc/kcore symbolic Backward compatibility
3177 /dev/ramdisk ram0 symbolic Backward compatibility
3178 /dev/ftape qft0 symbolic Backward compatibility
3179 /dev/bttv0 video0 symbolic Backward compatibility
3180 /dev/radio radio0 symbolic Backward compatibility
3181 /dev/i2o* /dev/i2o/* symbolic Backward compatibility
3182 /dev/scd? sr? hard Alternate SCSI CD-ROM name
3183 =============== =============== =============== ===============================
3185 Locally defined links
3186 +++++++++++++++++++++
3188 The following links may be established locally to conform to the
3189 configuration of the system. This is merely a tabulation of existing
3190 practice, and does not constitute a recommendation. However, if they
3191 exist, they should have the following uses.
3193 =============== =============== =============== ===============================
3194 /dev/mouse mouse port symbolic Current mouse device
3195 /dev/tape tape device symbolic Current tape device
3196 /dev/cdrom CD-ROM device symbolic Current CD-ROM device
3197 /dev/cdwriter CD-writer symbolic Current CD-writer device
3198 /dev/scanner scanner symbolic Current scanner device
3199 /dev/modem modem port symbolic Current dialout device
3200 /dev/root root device symbolic Current root filesystem
3201 /dev/swap swap device symbolic Current swap device
3202 =============== =============== =============== ===============================
3204 ``/dev/modem`` should not be used for a modem which supports dialin as
3205 well as dialout, as it tends to cause lock file problems. If it
3206 exists, ``/dev/modem`` should point to the appropriate primary TTY device
3207 (the use of the alternate callout devices is deprecated).
3209 For SCSI devices, ``/dev/tape`` and ``/dev/cdrom`` should point to the
3210 *cooked* devices (``/dev/st*`` and ``/dev/sr*``, respectively), whereas
3211 ``/dev/cdwriter`` and /dev/scanner should point to the appropriate generic
3212 SCSI devices (/dev/sg*).
3214 ``/dev/mouse`` may point to a primary serial TTY device, a hardware mouse
3215 device, or a socket for a mouse driver program (e.g. ``/dev/gpmdata``).
3220 Non-transient sockets and named pipes may exist in /dev. Common entries are:
3222 =============== =============== ===============================================
3223 /dev/printer socket lpd local socket
3224 /dev/log socket syslog local socket
3225 /dev/gpmdata socket gpm mouse multiplexer
3226 =============== =============== ===============================================
3231 The following names are reserved for mounting special filesystems
3232 under /dev. These special filesystems provide kernel interfaces that
3233 cannot be provided with standard device nodes.
3235 =============== =============== ===============================================
3236 /dev/pts devpts PTY slave filesystem
3237 /dev/shm tmpfs POSIX shared memory maintenance access
3238 =============== =============== ===============================================
3243 Terminal, or TTY devices are a special class of character devices. A
3244 terminal device is any device that could act as a controlling terminal
3245 for a session; this includes virtual consoles, serial ports, and
3246 pseudoterminals (PTYs).
3248 All terminal devices share a common set of capabilities known as line
3249 disciplines; these include the common terminal line discipline as well
3250 as SLIP and PPP modes.
3252 All terminal devices are named similarly; this section explains the
3253 naming and use of the various types of TTYs. Note that the naming
3254 conventions include several historical warts; some of these are
3255 Linux-specific, some were inherited from other systems, and some
3256 reflect Linux outgrowing a borrowed convention.
3258 A hash mark (``#``) in a device name is used here to indicate a decimal
3259 number without leading zeroes.
3261 Virtual consoles and the console device
3262 +++++++++++++++++++++++++++++++++++++++
3264 Virtual consoles are full-screen terminal displays on the system video
3265 monitor. Virtual consoles are named ``/dev/tty#``, with numbering
3266 starting at ``/dev/tty1``; ``/dev/tty0`` is the current virtual console.
3267 ``/dev/tty0`` is the device that should be used to access the system video
3268 card on those architectures for which the frame buffer devices
3269 (``/dev/fb*``) are not applicable. Do not use ``/dev/console``
3272 The console device, ``/dev/console``, is the device to which system
3273 messages should be sent, and on which logins should be permitted in
3274 single-user mode. Starting with Linux 2.1.71, ``/dev/console`` is managed
3275 by the kernel; for previous versions it should be a symbolic link to
3276 either ``/dev/tty0``, a specific virtual console such as ``/dev/tty1``, or to
3277 a serial port primary (``tty*``, not ``cu*``) device, depending on the
3278 configuration of the system.
3283 Serial ports are RS-232 serial ports and any device which simulates
3284 one, either in hardware (such as internal modems) or in software (such
3285 as the ISDN driver.) Under Linux, each serial ports has two device
3286 names, the primary or callin device and the alternate or callout one.
3287 Each kind of device is indicated by a different letter. For any
3288 letter X, the names of the devices are ``/dev/ttyX#`` and ``/dev/cux#``,
3289 respectively; for historical reasons, ``/dev/ttyS#`` and ``/dev/ttyC#``
3290 correspond to ``/dev/cua#`` and ``/dev/cub#``. In the future, it should be
3291 expected that multiple letters will be used; all letters will be upper
3292 case for the "tty" device (e.g. ``/dev/ttyDP#``) and lower case for the
3293 "cu" device (e.g. ``/dev/cudp#``).
3295 The names ``/dev/ttyQ#`` and ``/dev/cuq#`` are reserved for local use.
3297 The alternate devices provide for kernel-based exclusion and somewhat
3298 different defaults than the primary devices. Their main purpose is to
3299 allow the use of serial ports with programs with no inherent or broken
3300 support for serial ports. Their use is deprecated, and they may be
3301 removed from a future version of Linux.
3303 Arbitration of serial ports is provided by the use of lock files with
3304 the names ``/var/lock/LCK..ttyX#``. The contents of the lock file should
3305 be the PID of the locking process as an ASCII number.
3307 It is common practice to install links such as /dev/modem
3308 which point to serial ports. In order to ensure proper locking in the
3309 presence of these links, it is recommended that software chase
3310 symlinks and lock all possible names; additionally, it is recommended
3311 that a lock file be installed with the corresponding alternate
3312 device. In order to avoid deadlocks, it is recommended that the locks
3313 are acquired in the following order, and released in the reverse:
3315 1. The symbolic link name, if any (``/var/lock/LCK..modem``)
3316 2. The "tty" name (``/var/lock/LCK..ttyS2``)
3317 3. The alternate device name (``/var/lock/LCK..cua2``)
3319 In the case of nested symbolic links, the lock files should be
3320 installed in the order the symlinks are resolved.
3322 Under no circumstances should an application hold a lock while waiting
3323 for another to be released. In addition, applications which attempt
3324 to create lock files for the corresponding alternate device names
3325 should take into account the possibility of being used on a non-serial
3326 port TTY, for which no alternate device would exist.
3328 Pseudoterminals (PTYs)
3329 ++++++++++++++++++++++
3331 Pseudoterminals, or PTYs, are used to create login sessions or provide
3332 other capabilities requiring a TTY line discipline (including SLIP or
3333 PPP capability) to arbitrary data-generation processes. Each PTY has
3334 a master side, named ``/dev/pty[p-za-e][0-9a-f]``, and a slave side, named
3335 ``/dev/tty[p-za-e][0-9a-f]``. The kernel arbitrates the use of PTYs by
3336 allowing each master side to be opened only once.
3338 Once the master side has been opened, the corresponding slave device
3339 can be used in the same manner as any TTY device. The master and
3340 slave devices are connected by the kernel, generating the equivalent
3341 of a bidirectional pipe with TTY capabilities.
3343 Recent versions of the Linux kernels and GNU libc contain support for
3344 the System V/Unix98 naming scheme for PTYs, which assigns a common
3345 device, ``/dev/ptmx``, to all the masters (opening it will automatically
3346 give you a previously unassigned PTY) and a subdirectory, ``/dev/pts``,
3347 for the slaves; the slaves are named with decimal integers (``/dev/pts/#``
3348 in our notation). This removes the problem of exhausting the
3349 namespace and enables the kernel to automatically create the device
3350 nodes for the slaves on demand using the "devpts" filesystem.
projects / linux-2.6-microblaze.git / blob