1 0 Unnamed devices (e.g. non-device mounts)
2 0 = reserved as null device number
3 See block major 144, 145, 146 for expansion areas.
6 1 = /dev/mem Physical memory access
7 2 = /dev/kmem OBSOLETE - replaced by /proc/kcore
8 3 = /dev/null Null device
9 4 = /dev/port I/O port access
10 5 = /dev/zero Null byte source
11 6 = /dev/core OBSOLETE - replaced by /proc/kcore
12 7 = /dev/full Returns ENOSPC on write
13 8 = /dev/random Nondeterministic random number gen.
14 9 = /dev/urandom Faster, less secure random number gen.
15 10 = /dev/aio Asynchronous I/O notification interface
16 11 = /dev/kmsg Writes to this come out as printk's, reads
17 export the buffered printk records.
18 12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore
21 0 = /dev/ram0 First RAM disk
22 1 = /dev/ram1 Second RAM disk
24 250 = /dev/initrd Initial RAM disk
26 Older kernels had /dev/ramdisk (1, 1) here.
27 /dev/initrd refers to a RAM disk which was preloaded
28 by the boot loader; newer kernels use /dev/ram0 for
31 2 char Pseudo-TTY masters
32 0 = /dev/ptyp0 First PTY master
33 1 = /dev/ptyp1 Second PTY master
35 255 = /dev/ptyef 256th PTY master
37 Pseudo-tty's are named as follows:
38 * Masters are "pty", slaves are "tty";
39 * the fourth letter is one of pqrstuvwxyzabcde indicating
40 the 1st through 16th series of 16 pseudo-ttys each, and
41 * the fifth letter is one of 0123456789abcdef indicating
42 the position within the series.
44 These are the old-style (BSD) PTY devices; Unix98
45 devices are on major 128 and above and use the PTY
46 master multiplex (/dev/ptmx) to acquire a PTY on
50 0 = /dev/fd0 Controller 0, drive 0, autodetect
51 1 = /dev/fd1 Controller 0, drive 1, autodetect
52 2 = /dev/fd2 Controller 0, drive 2, autodetect
53 3 = /dev/fd3 Controller 0, drive 3, autodetect
54 128 = /dev/fd4 Controller 1, drive 0, autodetect
55 129 = /dev/fd5 Controller 1, drive 1, autodetect
56 130 = /dev/fd6 Controller 1, drive 2, autodetect
57 131 = /dev/fd7 Controller 1, drive 3, autodetect
59 To specify format, add to the autodetect device number:
60 0 = /dev/fd? Autodetect format
61 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
62 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
63 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
64 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
65 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
66 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
67 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
68 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
69 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
70 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
71 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
73 12 = /dev/fd?u360 3.5" 360K Double Density(2)
74 16 = /dev/fd?u720 3.5" 720K Double Density(1)
75 120 = /dev/fd?u800 3.5" 800K Double Density(2)
76 52 = /dev/fd?u820 3.5" 820K Double Density
77 68 = /dev/fd?u830 3.5" 830K Double Density
78 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
79 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
80 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
81 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
82 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
83 60 = /dev/fd?u1722 3.5" 1722K High Density
84 76 = /dev/fd?u1743 3.5" 1743K High Density
85 96 = /dev/fd?u1760 3.5" 1760K High Density
86 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
87 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
88 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
89 104 = /dev/fd?u3200 3.5" 3200K Extra Density
90 108 = /dev/fd?u3520 3.5" 3520K Extra Density
91 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
93 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
95 (1) Autodetectable format
96 (2) Autodetectable format in a Double Density (720K) drive only
97 (3) Autodetectable format in a High Density (1440K) drive only
99 NOTE: The letter in the device name (d, q, h or u)
100 signifies the type of drive: 5.25" Double Density (d),
101 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
102 (any model, u). The use of the capital letters D, H
103 and E for the 3.5" models have been deprecated, since
104 the drive type is insignificant for these devices.
106 3 char Pseudo-TTY slaves
107 0 = /dev/ttyp0 First PTY slave
108 1 = /dev/ttyp1 Second PTY slave
110 255 = /dev/ttyef 256th PTY slave
112 These are the old-style (BSD) PTY devices; Unix98
113 devices are on major 136 and above.
115 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
116 0 = /dev/hda Master: whole disk (or CD-ROM)
117 64 = /dev/hdb Slave: whole disk (or CD-ROM)
119 For partitions, add to the whole disk device number:
120 0 = /dev/hd? Whole disk
121 1 = /dev/hd?1 First partition
122 2 = /dev/hd?2 Second partition
124 63 = /dev/hd?63 63rd partition
126 For Linux/i386, partitions 1-4 are the primary
127 partitions, and 5 and above are logical partitions.
128 Other versions of Linux use partitioning schemes
129 appropriate to their respective architectures.
132 0 = /dev/tty0 Current virtual console
134 1 = /dev/tty1 First virtual console
136 63 = /dev/tty63 63rd virtual console
137 64 = /dev/ttyS0 First UART serial port
139 255 = /dev/ttyS191 192nd UART serial port
141 UART serial ports refer to 8250/16450/16550 series devices.
143 Older versions of the Linux kernel used this major
144 number for BSD PTY devices. As of Linux 2.1.115, this
145 is no longer supported. Use major numbers 2 and 3.
147 4 block Aliases for dynamically allocated major devices to be used
148 when its not possible to create the real device nodes
149 because the root filesystem is mounted read-only.
153 5 char Alternate TTY devices
154 0 = /dev/tty Current TTY device
155 1 = /dev/console System console
156 2 = /dev/ptmx PTY master multiplex
157 3 = /dev/ttyprintk User messages via printk TTY device
158 64 = /dev/cua0 Callout device for ttyS0
160 255 = /dev/cua191 Callout device for ttyS191
162 (5,1) is /dev/console starting with Linux 2.1.71. See
163 the section on terminal devices for more information
166 6 char Parallel printer devices
167 0 = /dev/lp0 Parallel printer on parport0
168 1 = /dev/lp1 Parallel printer on parport1
171 Current Linux kernels no longer have a fixed mapping
172 between parallel ports and I/O addresses. Instead,
173 they are redirected through the parport multiplex layer.
175 7 char Virtual console capture devices
176 0 = /dev/vcs Current vc text (glyph) contents
177 1 = /dev/vcs1 tty1 text (glyph) contents
179 63 = /dev/vcs63 tty63 text (glyph) contents
180 64 = /dev/vcsu Current vc text (unicode) contents
181 65 = /dev/vcsu1 tty1 text (unicode) contents
183 127 = /dev/vcsu63 tty63 text (unicode) contents
184 128 = /dev/vcsa Current vc text/attribute (glyph) contents
185 129 = /dev/vcsa1 tty1 text/attribute (glyph) contents
187 191 = /dev/vcsa63 tty63 text/attribute (glyph) contents
189 NOTE: These devices permit both read and write access.
191 7 block Loopback devices
192 0 = /dev/loop0 First loop device
193 1 = /dev/loop1 Second loop device
196 The loop devices are used to mount filesystems not
197 associated with block devices. The binding to the
198 loop devices is handled by mount(8) or losetup(8).
200 8 block SCSI disk devices (0-15)
201 0 = /dev/sda First SCSI disk whole disk
202 16 = /dev/sdb Second SCSI disk whole disk
203 32 = /dev/sdc Third SCSI disk whole disk
205 240 = /dev/sdp Sixteenth SCSI disk whole disk
207 Partitions are handled in the same way as for IDE
208 disks (see major number 3) except that the limit on
211 9 char SCSI tape devices
212 0 = /dev/st0 First SCSI tape, mode 0
213 1 = /dev/st1 Second SCSI tape, mode 0
215 32 = /dev/st0l First SCSI tape, mode 1
216 33 = /dev/st1l Second SCSI tape, mode 1
218 64 = /dev/st0m First SCSI tape, mode 2
219 65 = /dev/st1m Second SCSI tape, mode 2
221 96 = /dev/st0a First SCSI tape, mode 3
222 97 = /dev/st1a Second SCSI tape, mode 3
224 128 = /dev/nst0 First SCSI tape, mode 0, no rewind
225 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
227 160 = /dev/nst0l First SCSI tape, mode 1, no rewind
228 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
230 192 = /dev/nst0m First SCSI tape, mode 2, no rewind
231 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
233 224 = /dev/nst0a First SCSI tape, mode 3, no rewind
234 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
237 "No rewind" refers to the omission of the default
238 automatic rewind on device close. The MTREW or MTOFFL
239 ioctl()'s can be used to rewind the tape regardless of
240 the device used to access it.
242 9 block Metadisk (RAID) devices
243 0 = /dev/md0 First metadisk group
244 1 = /dev/md1 Second metadisk group
247 The metadisk driver is used to span a
248 filesystem across multiple physical disks.
250 10 char Non-serial mice, misc features
251 0 = /dev/logibm Logitech bus mouse
252 1 = /dev/psaux PS/2-style mouse port
253 2 = /dev/inportbm Microsoft Inport bus mouse
254 3 = /dev/atibm ATI XL bus mouse
256 4 = /dev/amigamouse Amiga mouse (68k/Amiga)
257 5 = /dev/atarimouse Atari mouse
258 6 = /dev/sunmouse Sun mouse
259 7 = /dev/amigamouse1 Second Amiga mouse
260 8 = /dev/smouse Simple serial mouse driver
261 9 = /dev/pc110pad IBM PC-110 digitizer pad
262 10 = /dev/adbmouse Apple Desktop Bus mouse
263 11 = /dev/vrtpanel Vr41xx embedded touch panel
264 13 = /dev/vpcmouse Connectix Virtual PC Mouse
265 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
266 15 = /dev/touchscreen/mk712 MK712 touchscreen
267 128 = /dev/beep Fancy beep device
269 130 = /dev/watchdog Watchdog timer port
270 131 = /dev/temperature Machine internal temperature
271 132 = /dev/hwtrap Hardware fault trap
272 133 = /dev/exttrp External device trap
273 134 = /dev/apm_bios Advanced Power Management BIOS
274 135 = /dev/rtc Real Time Clock
275 137 = /dev/vhci Bluetooth virtual HCI driver
276 139 = /dev/openprom SPARC OpenBoot PROM
277 140 = /dev/relay8 Berkshire Products Octal relay card
278 141 = /dev/relay16 Berkshire Products ISO-16 relay card
280 143 = /dev/pciconf PCI configuration space
281 144 = /dev/nvram Non-volatile configuration RAM
282 145 = /dev/hfmodem Soundcard shortwave modem control
283 146 = /dev/graphics Linux/SGI graphics device
284 147 = /dev/opengl Linux/SGI OpenGL pipe
285 148 = /dev/gfx Linux/SGI graphics effects device
286 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
287 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
288 151 = /dev/led Front panel LEDs
289 152 = /dev/kpoll Kernel Poll Driver
290 153 = /dev/mergemem Memory merge device
291 154 = /dev/pmu Macintosh PowerBook power manager
293 156 = /dev/lcd Front panel LCD display
294 157 = /dev/ac Applicom Intl Profibus card
295 158 = /dev/nwbutton Netwinder external button
296 159 = /dev/nwdebug Netwinder debug interface
297 160 = /dev/nwflash Netwinder flash memory
298 161 = /dev/userdma User-space DMA access
299 162 = /dev/smbus System Management Bus
300 163 = /dev/lik Logitech Internet Keyboard
301 164 = /dev/ipmo Intel Intelligent Platform Management
302 165 = /dev/vmmon VMware virtual machine monitor
303 166 = /dev/i2o/ctl I2O configuration manager
304 167 = /dev/specialix_sxctl Specialix serial control
305 168 = /dev/tcldrv Technology Concepts serial control
306 169 = /dev/specialix_rioctl Specialix RIO serial control
307 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices
308 171 = /dev/srripc QNX4 API IPC manager
309 172 = /dev/usemaclone Semaphore clone device
310 173 = /dev/ipmikcs Intelligent Platform Management
311 174 = /dev/uctrl SPARCbook 3 microcontroller
312 175 = /dev/agpgart AGP Graphics Address Remapping Table
313 176 = /dev/gtrsc Gorgy Timing radio clock
314 177 = /dev/cbm Serial CBM bus
315 178 = /dev/jsflash JavaStation OS flash SIMM
316 179 = /dev/xsvc High-speed shared-mem/semaphore service
317 180 = /dev/vrbuttons Vr41xx button input device
318 181 = /dev/toshiba Toshiba laptop SMM support
319 182 = /dev/perfctr Performance-monitoring counters
320 183 = /dev/hwrng Generic random number generator
321 184 = /dev/cpu/microcode CPU microcode update interface
322 186 = /dev/atomicps Atomic snapshot of process state data
323 187 = /dev/irnet IrNET device
324 188 = /dev/smbusbios SMBus BIOS
325 189 = /dev/ussp_ctl User space serial port control
326 190 = /dev/crash Mission Critical Linux crash dump facility
327 191 = /dev/pcl181 <information missing>
328 192 = /dev/nas_xbus NAS xbus LCD/buttons access
329 193 = /dev/d7s SPARC 7-segment display
330 194 = /dev/zkshim Zero-Knowledge network shim control
331 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
332 196 = /dev/vfio/vfio VFIO userspace driver interface
333 197 = /dev/pxa3xx-gcu PXA3xx graphics controller unit driver
334 198 = /dev/sexec Signed executable interface
335 199 = /dev/scanners/cuecat :CueCat barcode scanner
336 200 = /dev/net/tun TAP/TUN network device
337 201 = /dev/button/gulpb Transmeta GULP-B buttons
338 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control
339 203 = /dev/cuse Cuse (character device in user-space)
340 204 = /dev/video/em8300 EM8300 DVD decoder control
341 205 = /dev/video/em8300_mv EM8300 DVD decoder video
342 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
343 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
344 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
345 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
346 210 = /dev/impi/bt IMPI coprocessor block transfer
347 211 = /dev/impi/smic IMPI coprocessor stream interface
348 212 = /dev/watchdogs/0 First watchdog device
349 213 = /dev/watchdogs/1 Second watchdog device
350 214 = /dev/watchdogs/2 Third watchdog device
351 215 = /dev/watchdogs/3 Fourth watchdog device
352 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel
353 217 = /dev/ni/natmotn National Instruments Motion
354 218 = /dev/kchuid Inter-process chuid control
355 219 = /dev/modems/mwave MWave modem firmware upload
356 220 = /dev/mptctl Message passing technology (MPT) control
357 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver
358 222 = /dev/mvista/hasi Montavista PICMG high availability
359 223 = /dev/input/uinput User level driver support for input
360 224 = /dev/tpm TCPA TPM driver
361 225 = /dev/pps Pulse Per Second driver
362 226 = /dev/systrace Systrace device
363 227 = /dev/mcelog X86_64 Machine Check Exception driver
364 228 = /dev/hpet HPET driver
365 229 = /dev/fuse Fuse (virtual filesystem in user-space)
366 230 = /dev/midishare MidiShare driver
367 231 = /dev/snapshot System memory snapshot device
368 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions)
369 233 = /dev/kmview View-OS A process with a view
370 234 = /dev/btrfs-control Btrfs control device
371 235 = /dev/autofs Autofs control device
372 236 = /dev/mapper/control Device-Mapper control device
373 237 = /dev/loop-control Loopback control device
374 238 = /dev/vhost-net Host kernel accelerator for virtio net
375 239 = /dev/uhid User-space I/O driver support for HID subsystem
376 240 = /dev/userio Serio driver testing device
377 241 = /dev/vhost-vsock Host kernel driver for virtio vsock
378 242 = /dev/rfkill Turning off radio transmissions (rfkill)
380 243-254 Reserved for local use
381 255 Reserved for MISC_DYNAMIC_MINOR
383 11 char Raw keyboard device (Linux/SPARC only)
384 0 = /dev/kbd Raw keyboard device
386 11 char Serial Mux device (Linux/PA-RISC only)
387 0 = /dev/ttyB0 First mux port
388 1 = /dev/ttyB1 Second mux port
391 11 block SCSI CD-ROM devices
392 0 = /dev/scd0 First SCSI CD-ROM
393 1 = /dev/scd1 Second SCSI CD-ROM
396 The prefix /dev/sr (instead of /dev/scd) has been deprecated.
399 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
400 3 = /dev/tpqic11 QIC-11, rewind-on-close
401 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
402 5 = /dev/tpqic24 QIC-24, rewind-on-close
403 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
404 7 = /dev/tpqic120 QIC-120, rewind-on-close
405 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
406 9 = /dev/tpqic150 QIC-150, rewind-on-close
408 The device names specified are proposed -- if there
409 are "standard" names for these devices, please let me know.
414 0 = /dev/input/js0 First joystick
415 1 = /dev/input/js1 Second joystick
417 32 = /dev/input/mouse0 First mouse
418 33 = /dev/input/mouse1 Second mouse
420 63 = /dev/input/mice Unified mouse
421 64 = /dev/input/event0 First event queue
422 65 = /dev/input/event1 Second event queue
425 Each device type has 5 bits (32 minors).
427 13 block Previously used for the XT disk (/dev/xdN)
428 Deleted in kernel v3.9.
430 14 char Open Sound System (OSS)
431 0 = /dev/mixer Mixer control
432 1 = /dev/sequencer Audio sequencer
433 2 = /dev/midi00 First MIDI port
434 3 = /dev/dsp Digital audio
435 4 = /dev/audio Sun-compatible digital audio
437 7 = /dev/audioctl SPARC audio control device
438 8 = /dev/sequencer2 Sequencer -- alternate device
439 16 = /dev/mixer1 Second soundcard mixer control
440 17 = /dev/patmgr0 Sequencer patch manager
441 18 = /dev/midi01 Second MIDI port
442 19 = /dev/dsp1 Second soundcard digital audio
443 20 = /dev/audio1 Second soundcard Sun digital audio
444 33 = /dev/patmgr1 Sequencer patch manager
445 34 = /dev/midi02 Third MIDI port
446 50 = /dev/midi03 Fourth MIDI port
451 0 = /dev/js0 First analog joystick
452 1 = /dev/js1 Second analog joystick
454 128 = /dev/djs0 First digital joystick
455 129 = /dev/djs1 Second digital joystick
457 15 block Sony CDU-31A/CDU-33A CD-ROM
458 0 = /dev/sonycd Sony CDU-31a CD-ROM
460 16 char Non-SCSI scanners
461 0 = /dev/gs4500 Genius 4500 handheld scanner
463 16 block GoldStar CD-ROM
464 0 = /dev/gscd GoldStar CD-ROM
466 17 char OBSOLETE (was Chase serial card)
467 0 = /dev/ttyH0 First Chase port
468 1 = /dev/ttyH1 Second Chase port
470 17 block Optics Storage CD-ROM
471 0 = /dev/optcd Optics Storage CD-ROM
473 18 char OBSOLETE (was Chase serial card - alternate devices)
474 0 = /dev/cuh0 Callout device for ttyH0
475 1 = /dev/cuh1 Callout device for ttyH1
477 18 block Sanyo CD-ROM
478 0 = /dev/sjcd Sanyo CD-ROM
480 19 block "Double" compressed disk
481 0 = /dev/double0 First compressed disk
483 7 = /dev/double7 Eighth compressed disk
484 128 = /dev/cdouble0 Mirror of first compressed disk
486 135 = /dev/cdouble7 Mirror of eighth compressed disk
488 See the Double documentation for the meaning of the
491 20 block Hitachi CD-ROM (under development)
492 0 = /dev/hitcd Hitachi CD-ROM
494 21 char Generic SCSI access
495 0 = /dev/sg0 First generic SCSI device
496 1 = /dev/sg1 Second generic SCSI device
499 Most distributions name these /dev/sga, /dev/sgb...;
500 this sets an unnecessary limit of 26 SCSI devices in
501 the system and is counter to standard Linux
502 device-naming practice.
504 21 block Acorn MFM hard drive interface
505 0 = /dev/mfma First MFM drive whole disk
506 64 = /dev/mfmb Second MFM drive whole disk
508 This device is used on the ARM-based Acorn RiscPC.
509 Partitions are handled the same way as for IDE disks
510 (see major number 3).
512 22 char Digiboard serial card
513 0 = /dev/ttyD0 First Digiboard port
514 1 = /dev/ttyD1 Second Digiboard port
516 22 block Second IDE hard disk/CD-ROM interface
517 0 = /dev/hdc Master: whole disk (or CD-ROM)
518 64 = /dev/hdd Slave: whole disk (or CD-ROM)
520 Partitions are handled the same way as for the first
521 interface (see major number 3).
523 23 char Digiboard serial card - alternate devices
524 0 = /dev/cud0 Callout device for ttyD0
525 1 = /dev/cud1 Callout device for ttyD1
527 23 block Mitsumi proprietary CD-ROM
528 0 = /dev/mcd Mitsumi CD-ROM
530 24 char Stallion serial card
531 0 = /dev/ttyE0 Stallion port 0 card 0
532 1 = /dev/ttyE1 Stallion port 1 card 0
534 64 = /dev/ttyE64 Stallion port 0 card 1
535 65 = /dev/ttyE65 Stallion port 1 card 1
537 128 = /dev/ttyE128 Stallion port 0 card 2
538 129 = /dev/ttyE129 Stallion port 1 card 2
540 192 = /dev/ttyE192 Stallion port 0 card 3
541 193 = /dev/ttyE193 Stallion port 1 card 3
543 24 block Sony CDU-535 CD-ROM
544 0 = /dev/cdu535 Sony CDU-535 CD-ROM
546 25 char Stallion serial card - alternate devices
547 0 = /dev/cue0 Callout device for ttyE0
548 1 = /dev/cue1 Callout device for ttyE1
550 64 = /dev/cue64 Callout device for ttyE64
551 65 = /dev/cue65 Callout device for ttyE65
553 128 = /dev/cue128 Callout device for ttyE128
554 129 = /dev/cue129 Callout device for ttyE129
556 192 = /dev/cue192 Callout device for ttyE192
557 193 = /dev/cue193 Callout device for ttyE193
559 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
560 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
561 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
562 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
563 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
567 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
568 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
569 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
570 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
571 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
574 0 = /dev/qft0 Unit 0, rewind-on-close
575 1 = /dev/qft1 Unit 1, rewind-on-close
576 2 = /dev/qft2 Unit 2, rewind-on-close
577 3 = /dev/qft3 Unit 3, rewind-on-close
578 4 = /dev/nqft0 Unit 0, no rewind-on-close
579 5 = /dev/nqft1 Unit 1, no rewind-on-close
580 6 = /dev/nqft2 Unit 2, no rewind-on-close
581 7 = /dev/nqft3 Unit 3, no rewind-on-close
582 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
583 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
584 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
585 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
586 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
587 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
588 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
589 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
590 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
591 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
592 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
593 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
594 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
595 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
596 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
597 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
599 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
600 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
601 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
602 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
603 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
605 28 char Stallion serial card - card programming
606 0 = /dev/staliomem0 First Stallion card I/O memory
607 1 = /dev/staliomem1 Second Stallion card I/O memory
608 2 = /dev/staliomem2 Third Stallion card I/O memory
609 3 = /dev/staliomem3 Fourth Stallion card I/O memory
611 28 char Atari SLM ACSI laser printer (68k/Atari)
612 0 = /dev/slm0 First SLM laser printer
613 1 = /dev/slm1 Second SLM laser printer
615 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
616 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
617 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
618 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
619 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
621 28 block ACSI disk (68k/Atari)
622 0 = /dev/ada First ACSI disk whole disk
623 16 = /dev/adb Second ACSI disk whole disk
624 32 = /dev/adc Third ACSI disk whole disk
626 240 = /dev/adp 16th ACSI disk whole disk
628 Partitions are handled in the same way as for IDE
629 disks (see major number 3) except that the limit on
630 partitions is 15, like SCSI.
632 29 char Universal frame buffer
633 0 = /dev/fb0 First frame buffer
634 1 = /dev/fb1 Second frame buffer
636 31 = /dev/fb31 32nd frame buffer
638 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
639 0 = /dev/aztcd Aztech CD-ROM
641 30 char iBCS-2 compatibility devices
642 0 = /dev/socksys Socket access
643 1 = /dev/spx SVR3 local X interface
644 32 = /dev/inet/ip Network access
655 Additionally, iBCS-2 requires the following links:
657 /dev/ip -> /dev/inet/ip
658 /dev/icmp -> /dev/inet/icmp
659 /dev/ggp -> /dev/inet/ggp
660 /dev/ipip -> /dev/inet/ipip
661 /dev/tcp -> /dev/inet/tcp
662 /dev/egp -> /dev/inet/egp
663 /dev/pup -> /dev/inet/pup
664 /dev/udp -> /dev/inet/udp
665 /dev/idp -> /dev/inet/idp
666 /dev/rawip -> /dev/inet/rawip
667 /dev/inet/arp -> /dev/inet/udp
668 /dev/inet/rip -> /dev/inet/udp
669 /dev/nfsd -> /dev/socksys
670 /dev/X0R -> /dev/null (? apparently not required ?)
672 30 block Philips LMS CM-205 CD-ROM
673 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
675 /dev/lmscd is an older name for this device. This
676 driver does not work with the CM-205MS CD-ROM.
679 0 = /dev/mpu401data MPU-401 data port
680 1 = /dev/mpu401stat MPU-401 status port
682 31 block ROM/flash memory card
683 0 = /dev/rom0 First ROM card (rw)
685 7 = /dev/rom7 Eighth ROM card (rw)
686 8 = /dev/rrom0 First ROM card (ro)
688 15 = /dev/rrom7 Eighth ROM card (ro)
689 16 = /dev/flash0 First flash memory card (rw)
691 23 = /dev/flash7 Eighth flash memory card (rw)
692 24 = /dev/rflash0 First flash memory card (ro)
694 31 = /dev/rflash7 Eighth flash memory card (ro)
696 The read-write (rw) devices support back-caching
697 written data in RAM, as well as writing to flash RAM
698 devices. The read-only devices (ro) support reading
701 32 char Specialix serial card
702 0 = /dev/ttyX0 First Specialix port
703 1 = /dev/ttyX1 Second Specialix port
705 32 block Philips LMS CM-206 CD-ROM
706 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
708 33 char Specialix serial card - alternate devices
709 0 = /dev/cux0 Callout device for ttyX0
710 1 = /dev/cux1 Callout device for ttyX1
712 33 block Third IDE hard disk/CD-ROM interface
713 0 = /dev/hde Master: whole disk (or CD-ROM)
714 64 = /dev/hdf Slave: whole disk (or CD-ROM)
716 Partitions are handled the same way as for the first
717 interface (see major number 3).
719 34 char Z8530 HDLC driver
720 0 = /dev/scc0 First Z8530, first port
721 1 = /dev/scc1 First Z8530, second port
722 2 = /dev/scc2 Second Z8530, first port
723 3 = /dev/scc3 Second Z8530, second port
726 In a previous version these devices were named
727 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
730 34 block Fourth IDE hard disk/CD-ROM interface
731 0 = /dev/hdg Master: whole disk (or CD-ROM)
732 64 = /dev/hdh Slave: whole disk (or CD-ROM)
734 Partitions are handled the same way as for the first
735 interface (see major number 3).
737 35 char tclmidi MIDI driver
738 0 = /dev/midi0 First MIDI port, kernel timed
739 1 = /dev/midi1 Second MIDI port, kernel timed
740 2 = /dev/midi2 Third MIDI port, kernel timed
741 3 = /dev/midi3 Fourth MIDI port, kernel timed
742 64 = /dev/rmidi0 First MIDI port, untimed
743 65 = /dev/rmidi1 Second MIDI port, untimed
744 66 = /dev/rmidi2 Third MIDI port, untimed
745 67 = /dev/rmidi3 Fourth MIDI port, untimed
746 128 = /dev/smpte0 First MIDI port, SMPTE timed
747 129 = /dev/smpte1 Second MIDI port, SMPTE timed
748 130 = /dev/smpte2 Third MIDI port, SMPTE timed
749 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
751 35 block Slow memory ramdisk
752 0 = /dev/slram Slow memory ramdisk
754 36 char Netlink support
755 0 = /dev/route Routing, device updates, kernel to user
756 1 = /dev/skip enSKIP security cache control
757 3 = /dev/fwmonitor Firewall packet copies
758 16 = /dev/tap0 First Ethertap device
760 31 = /dev/tap15 16th Ethertap device
762 36 block OBSOLETE (was MCA ESDI hard disk)
765 0 = /dev/ht0 First IDE tape
766 1 = /dev/ht1 Second IDE tape
768 128 = /dev/nht0 First IDE tape, no rewind-on-close
769 129 = /dev/nht1 Second IDE tape, no rewind-on-close
772 Currently, only one IDE tape drive is supported.
774 37 block Zorro II ramdisk
775 0 = /dev/z2ram Zorro II ramdisk
777 38 char Myricom PCI Myrinet board
778 0 = /dev/mlanai0 First Myrinet board
779 1 = /dev/mlanai1 Second Myrinet board
782 This device is used for status query, board control
783 and "user level packet I/O." This board is also
784 accessible as a standard networking "eth" device.
786 38 block OBSOLETE (was Linux/AP+)
788 39 char ML-16P experimental I/O board
789 0 = /dev/ml16pa-a0 First card, first analog channel
790 1 = /dev/ml16pa-a1 First card, second analog channel
792 15 = /dev/ml16pa-a15 First card, 16th analog channel
793 16 = /dev/ml16pa-d First card, digital lines
794 17 = /dev/ml16pa-c0 First card, first counter/timer
795 18 = /dev/ml16pa-c1 First card, second counter/timer
796 19 = /dev/ml16pa-c2 First card, third counter/timer
797 32 = /dev/ml16pb-a0 Second card, first analog channel
798 33 = /dev/ml16pb-a1 Second card, second analog channel
800 47 = /dev/ml16pb-a15 Second card, 16th analog channel
801 48 = /dev/ml16pb-d Second card, digital lines
802 49 = /dev/ml16pb-c0 Second card, first counter/timer
803 50 = /dev/ml16pb-c1 Second card, second counter/timer
804 51 = /dev/ml16pb-c2 Second card, third counter/timer
812 41 char Yet Another Micro Monitor
813 0 = /dev/yamm Yet Another Micro Monitor
817 42 char Demo/sample use
819 42 block Demo/sample use
821 This number is intended for use in sample code, as
822 well as a general "example" device number. It
823 should never be used for a device driver that is being
824 distributed; either obtain an official number or use
825 the local/experimental range. The sudden addition or
826 removal of a driver with this number should not cause
827 ill effects to the system (bugs excepted.)
829 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
830 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
832 43 char isdn4linux virtual modem
833 0 = /dev/ttyI0 First virtual modem
835 63 = /dev/ttyI63 64th virtual modem
837 43 block Network block devices
838 0 = /dev/nb0 First network block device
839 1 = /dev/nb1 Second network block device
842 Network Block Device is somehow similar to loopback
843 devices: If you read from it, it sends packet across
844 network asking server for data. If you write to it, it
845 sends packet telling server to write. It could be used
846 to mounting filesystems over the net, swapping over
847 the net, implementing block device in userland etc.
849 44 char isdn4linux virtual modem - alternate devices
850 0 = /dev/cui0 Callout device for ttyI0
852 63 = /dev/cui63 Callout device for ttyI63
854 44 block Flash Translation Layer (FTL) filesystems
855 0 = /dev/ftla FTL on first Memory Technology Device
856 16 = /dev/ftlb FTL on second Memory Technology Device
857 32 = /dev/ftlc FTL on third Memory Technology Device
859 240 = /dev/ftlp FTL on 16th Memory Technology Device
861 Partitions are handled in the same way as for IDE
862 disks (see major number 3) except that the partition
863 limit is 15 rather than 63 per disk (same as SCSI.)
865 45 char isdn4linux ISDN BRI driver
866 0 = /dev/isdn0 First virtual B channel raw data
868 63 = /dev/isdn63 64th virtual B channel raw data
869 64 = /dev/isdnctrl0 First channel control/debug
871 127 = /dev/isdnctrl63 64th channel control/debug
873 128 = /dev/ippp0 First SyncPPP device
875 191 = /dev/ippp63 64th SyncPPP device
877 255 = /dev/isdninfo ISDN monitor interface
879 45 block Parallel port IDE disk devices
880 0 = /dev/pda First parallel port IDE disk
881 16 = /dev/pdb Second parallel port IDE disk
882 32 = /dev/pdc Third parallel port IDE disk
883 48 = /dev/pdd Fourth parallel port IDE disk
885 Partitions are handled in the same way as for IDE
886 disks (see major number 3) except that the partition
887 limit is 15 rather than 63 per disk.
889 46 char Comtrol Rocketport serial card
890 0 = /dev/ttyR0 First Rocketport port
891 1 = /dev/ttyR1 Second Rocketport port
893 46 block Parallel port ATAPI CD-ROM devices
894 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
895 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
896 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
897 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
899 47 char Comtrol Rocketport serial card - alternate devices
900 0 = /dev/cur0 Callout device for ttyR0
901 1 = /dev/cur1 Callout device for ttyR1
903 47 block Parallel port ATAPI disk devices
904 0 = /dev/pf0 First parallel port ATAPI disk
905 1 = /dev/pf1 Second parallel port ATAPI disk
906 2 = /dev/pf2 Third parallel port ATAPI disk
907 3 = /dev/pf3 Fourth parallel port ATAPI disk
909 This driver is intended for floppy disks and similar
910 devices and hence does not support partitioning.
912 48 char SDL RISCom serial card
913 0 = /dev/ttyL0 First RISCom port
914 1 = /dev/ttyL1 Second RISCom port
916 48 block Mylex DAC960 PCI RAID controller; first controller
917 0 = /dev/rd/c0d0 First disk, whole disk
918 8 = /dev/rd/c0d1 Second disk, whole disk
920 248 = /dev/rd/c0d31 32nd disk, whole disk
923 0 = /dev/rd/c?d? Whole disk
924 1 = /dev/rd/c?d?p1 First partition
926 7 = /dev/rd/c?d?p7 Seventh partition
928 49 char SDL RISCom serial card - alternate devices
929 0 = /dev/cul0 Callout device for ttyL0
930 1 = /dev/cul1 Callout device for ttyL1
932 49 block Mylex DAC960 PCI RAID controller; second controller
933 0 = /dev/rd/c1d0 First disk, whole disk
934 8 = /dev/rd/c1d1 Second disk, whole disk
936 248 = /dev/rd/c1d31 32nd disk, whole disk
938 Partitions are handled as for major 48.
940 50 char Reserved for GLINT
942 50 block Mylex DAC960 PCI RAID controller; third controller
943 0 = /dev/rd/c2d0 First disk, whole disk
944 8 = /dev/rd/c2d1 Second disk, whole disk
946 248 = /dev/rd/c2d31 32nd disk, whole disk
948 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
949 0 = /dev/bc0 First Baycom radio modem
950 1 = /dev/bc1 Second Baycom radio modem
952 51 block Mylex DAC960 PCI RAID controller; fourth controller
953 0 = /dev/rd/c3d0 First disk, whole disk
954 8 = /dev/rd/c3d1 Second disk, whole disk
956 248 = /dev/rd/c3d31 32nd disk, whole disk
958 Partitions are handled as for major 48.
960 52 char Spellcaster DataComm/BRI ISDN card
961 0 = /dev/dcbri0 First DataComm card
962 1 = /dev/dcbri1 Second DataComm card
963 2 = /dev/dcbri2 Third DataComm card
964 3 = /dev/dcbri3 Fourth DataComm card
966 52 block Mylex DAC960 PCI RAID controller; fifth controller
967 0 = /dev/rd/c4d0 First disk, whole disk
968 8 = /dev/rd/c4d1 Second disk, whole disk
970 248 = /dev/rd/c4d31 32nd disk, whole disk
972 Partitions are handled as for major 48.
974 53 char BDM interface for remote debugging MC683xx microcontrollers
975 0 = /dev/pd_bdm0 PD BDM interface on lp0
976 1 = /dev/pd_bdm1 PD BDM interface on lp1
977 2 = /dev/pd_bdm2 PD BDM interface on lp2
978 4 = /dev/icd_bdm0 ICD BDM interface on lp0
979 5 = /dev/icd_bdm1 ICD BDM interface on lp1
980 6 = /dev/icd_bdm2 ICD BDM interface on lp2
982 This device is used for the interfacing to the MC683xx
983 microcontrollers via Background Debug Mode by use of a
984 Parallel Port interface. PD is the Motorola Public
985 Domain Interface and ICD is the commercial interface
988 53 block Mylex DAC960 PCI RAID controller; sixth controller
989 0 = /dev/rd/c5d0 First disk, whole disk
990 8 = /dev/rd/c5d1 Second disk, whole disk
992 248 = /dev/rd/c5d31 32nd disk, whole disk
994 Partitions are handled as for major 48.
996 54 char Electrocardiognosis Holter serial card
997 0 = /dev/holter0 First Holter port
998 1 = /dev/holter1 Second Holter port
999 2 = /dev/holter2 Third Holter port
1001 A custom serial card used by Electrocardiognosis SRL
1002 <mseritan@ottonel.pub.ro> to transfer data from Holter
1003 24-hour heart monitoring equipment.
1005 54 block Mylex DAC960 PCI RAID controller; seventh controller
1006 0 = /dev/rd/c6d0 First disk, whole disk
1007 8 = /dev/rd/c6d1 Second disk, whole disk
1009 248 = /dev/rd/c6d31 32nd disk, whole disk
1011 Partitions are handled as for major 48.
1013 55 char DSP56001 digital signal processor
1014 0 = /dev/dsp56k First DSP56001
1016 55 block Mylex DAC960 PCI RAID controller; eighth controller
1017 0 = /dev/rd/c7d0 First disk, whole disk
1018 8 = /dev/rd/c7d1 Second disk, whole disk
1020 248 = /dev/rd/c7d31 32nd disk, whole disk
1022 Partitions are handled as for major 48.
1024 56 char Apple Desktop Bus
1025 0 = /dev/adb ADB bus control
1027 Additional devices will be added to this number, all
1028 starting with /dev/adb.
1030 56 block Fifth IDE hard disk/CD-ROM interface
1031 0 = /dev/hdi Master: whole disk (or CD-ROM)
1032 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1034 Partitions are handled the same way as for the first
1035 interface (see major number 3).
1037 57 char Hayes ESP serial card
1038 0 = /dev/ttyP0 First ESP port
1039 1 = /dev/ttyP1 Second ESP port
1042 57 block Sixth IDE hard disk/CD-ROM interface
1043 0 = /dev/hdk Master: whole disk (or CD-ROM)
1044 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1046 Partitions are handled the same way as for the first
1047 interface (see major number 3).
1049 58 char Hayes ESP serial card - alternate devices
1050 0 = /dev/cup0 Callout device for ttyP0
1051 1 = /dev/cup1 Callout device for ttyP1
1054 58 block Reserved for logical volume manager
1056 59 char sf firewall package
1057 0 = /dev/firewall Communication with sf kernel module
1059 59 block Generic PDA filesystem device
1060 0 = /dev/pda0 First PDA device
1061 1 = /dev/pda1 Second PDA device
1064 The pda devices are used to mount filesystems on
1065 remote pda's (basically slow handheld machines with
1066 proprietary OS's and limited memory and storage
1067 running small fs translation drivers) through serial /
1068 IRDA / parallel links.
1070 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1072 60-63 char LOCAL/EXPERIMENTAL USE
1074 60-63 block LOCAL/EXPERIMENTAL USE
1075 Allocated for local/experimental use. For devices not
1076 assigned official numbers, these ranges should be
1077 used in order to avoid conflicting with future assignments.
1079 64 char ENskip kernel encryption package
1080 0 = /dev/enskip Communication with ENskip kernel module
1082 64 block Scramdisk/DriveCrypt encrypted devices
1083 0 = /dev/scramdisk/master Master node for ioctls
1084 1 = /dev/scramdisk/1 First encrypted device
1085 2 = /dev/scramdisk/2 Second encrypted device
1087 255 = /dev/scramdisk/255 255th encrypted device
1089 The filename of the encrypted container and the passwords
1090 are sent via ioctls (using the sdmount tool) to the master
1091 node which then activates them via one of the
1092 /dev/scramdisk/x nodes for loop mounting (all handled
1093 through the sdmount tool).
1095 Requested by: andy@scramdisklinux.org
1097 65 char Sundance "plink" Transputer boards (obsolete, unused)
1098 0 = /dev/plink0 First plink device
1099 1 = /dev/plink1 Second plink device
1100 2 = /dev/plink2 Third plink device
1101 3 = /dev/plink3 Fourth plink device
1102 64 = /dev/rplink0 First plink device, raw
1103 65 = /dev/rplink1 Second plink device, raw
1104 66 = /dev/rplink2 Third plink device, raw
1105 67 = /dev/rplink3 Fourth plink device, raw
1106 128 = /dev/plink0d First plink device, debug
1107 129 = /dev/plink1d Second plink device, debug
1108 130 = /dev/plink2d Third plink device, debug
1109 131 = /dev/plink3d Fourth plink device, debug
1110 192 = /dev/rplink0d First plink device, raw, debug
1111 193 = /dev/rplink1d Second plink device, raw, debug
1112 194 = /dev/rplink2d Third plink device, raw, debug
1113 195 = /dev/rplink3d Fourth plink device, raw, debug
1115 This is a commercial driver; contact James Howes
1116 <jth@prosig.demon.co.uk> for information.
1118 65 block SCSI disk devices (16-31)
1119 0 = /dev/sdq 17th SCSI disk whole disk
1120 16 = /dev/sdr 18th SCSI disk whole disk
1121 32 = /dev/sds 19th SCSI disk whole disk
1123 240 = /dev/sdaf 32nd SCSI disk whole disk
1125 Partitions are handled in the same way as for IDE
1126 disks (see major number 3) except that the limit on
1129 66 char YARC PowerPC PCI coprocessor card
1130 0 = /dev/yppcpci0 First YARC card
1131 1 = /dev/yppcpci1 Second YARC card
1134 66 block SCSI disk devices (32-47)
1135 0 = /dev/sdag 33th SCSI disk whole disk
1136 16 = /dev/sdah 34th SCSI disk whole disk
1137 32 = /dev/sdai 35th SCSI disk whole disk
1139 240 = /dev/sdav 48nd SCSI disk whole disk
1141 Partitions are handled in the same way as for IDE
1142 disks (see major number 3) except that the limit on
1145 67 char Coda network file system
1146 0 = /dev/cfs0 Coda cache manager
1148 See http://www.coda.cs.cmu.edu for information about Coda.
1150 67 block SCSI disk devices (48-63)
1151 0 = /dev/sdaw 49th SCSI disk whole disk
1152 16 = /dev/sdax 50th SCSI disk whole disk
1153 32 = /dev/sday 51st SCSI disk whole disk
1155 240 = /dev/sdbl 64th SCSI disk whole disk
1157 Partitions are handled in the same way as for IDE
1158 disks (see major number 3) except that the limit on
1161 68 char CAPI 2.0 interface
1162 0 = /dev/capi20 Control device
1163 1 = /dev/capi20.00 First CAPI 2.0 application
1164 2 = /dev/capi20.01 Second CAPI 2.0 application
1166 20 = /dev/capi20.19 19th CAPI 2.0 application
1168 ISDN CAPI 2.0 driver for use with CAPI 2.0
1169 applications; currently supports the AVM B1 card.
1171 68 block SCSI disk devices (64-79)
1172 0 = /dev/sdbm 65th SCSI disk whole disk
1173 16 = /dev/sdbn 66th SCSI disk whole disk
1174 32 = /dev/sdbo 67th SCSI disk whole disk
1176 240 = /dev/sdcb 80th SCSI disk whole disk
1178 Partitions are handled in the same way as for IDE
1179 disks (see major number 3) except that the limit on
1182 69 char MA16 numeric accelerator card
1183 0 = /dev/ma16 Board memory access
1185 69 block SCSI disk devices (80-95)
1186 0 = /dev/sdcc 81st SCSI disk whole disk
1187 16 = /dev/sdcd 82nd SCSI disk whole disk
1188 32 = /dev/sdce 83th SCSI disk whole disk
1190 240 = /dev/sdcr 96th SCSI disk whole disk
1192 Partitions are handled in the same way as for IDE
1193 disks (see major number 3) except that the limit on
1196 70 char SpellCaster Protocol Services Interface
1197 0 = /dev/apscfg Configuration interface
1198 1 = /dev/apsauth Authentication interface
1199 2 = /dev/apslog Logging interface
1200 3 = /dev/apsdbg Debugging interface
1201 64 = /dev/apsisdn ISDN command interface
1202 65 = /dev/apsasync Async command interface
1203 128 = /dev/apsmon Monitor interface
1205 70 block SCSI disk devices (96-111)
1206 0 = /dev/sdcs 97th SCSI disk whole disk
1207 16 = /dev/sdct 98th SCSI disk whole disk
1208 32 = /dev/sdcu 99th SCSI disk whole disk
1210 240 = /dev/sddh 112nd SCSI disk whole disk
1212 Partitions are handled in the same way as for IDE
1213 disks (see major number 3) except that the limit on
1216 71 char Computone IntelliPort II serial card
1217 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1218 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1220 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1221 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1222 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1224 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1225 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1226 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1228 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1229 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1230 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1232 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1234 71 block SCSI disk devices (112-127)
1235 0 = /dev/sddi 113th SCSI disk whole disk
1236 16 = /dev/sddj 114th SCSI disk whole disk
1237 32 = /dev/sddk 115th SCSI disk whole disk
1239 240 = /dev/sddx 128th 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 72 char Computone IntelliPort II serial card - alternate devices
1246 0 = /dev/cuf0 Callout device for ttyF0
1247 1 = /dev/cuf1 Callout device for ttyF1
1249 63 = /dev/cuf63 Callout device for ttyF63
1250 64 = /dev/cuf64 Callout device for ttyF64
1251 65 = /dev/cuf65 Callout device for ttyF65
1253 127 = /dev/cuf127 Callout device for ttyF127
1254 128 = /dev/cuf128 Callout device for ttyF128
1255 129 = /dev/cuf129 Callout device for ttyF129
1257 191 = /dev/cuf191 Callout device for ttyF191
1258 192 = /dev/cuf192 Callout device for ttyF192
1259 193 = /dev/cuf193 Callout device for ttyF193
1261 255 = /dev/cuf255 Callout device for ttyF255
1263 72 block Compaq Intelligent Drive Array, first controller
1264 0 = /dev/ida/c0d0 First logical drive whole disk
1265 16 = /dev/ida/c0d1 Second logical drive whole disk
1267 240 = /dev/ida/c0d15 16th logical drive whole disk
1269 Partitions are handled the same way as for Mylex
1270 DAC960 (see major number 48) except that the limit on
1273 73 char Computone IntelliPort II serial card - control devices
1274 0 = /dev/ip2ipl0 Loadware device for board 0
1275 1 = /dev/ip2stat0 Status device for board 0
1276 4 = /dev/ip2ipl1 Loadware device for board 1
1277 5 = /dev/ip2stat1 Status device for board 1
1278 8 = /dev/ip2ipl2 Loadware device for board 2
1279 9 = /dev/ip2stat2 Status device for board 2
1280 12 = /dev/ip2ipl3 Loadware device for board 3
1281 13 = /dev/ip2stat3 Status device for board 3
1283 73 block Compaq Intelligent Drive Array, second controller
1284 0 = /dev/ida/c1d0 First logical drive whole disk
1285 16 = /dev/ida/c1d1 Second logical drive whole disk
1287 240 = /dev/ida/c1d15 16th logical drive whole disk
1289 Partitions are handled the same way as for Mylex
1290 DAC960 (see major number 48) except that the limit on
1294 0 = /dev/SCI/0 SCI device 0
1295 1 = /dev/SCI/1 SCI device 1
1298 Currently for Dolphin Interconnect Solutions' PCI-SCI
1301 74 block Compaq Intelligent Drive Array, third controller
1302 0 = /dev/ida/c2d0 First logical drive whole disk
1303 16 = /dev/ida/c2d1 Second logical drive whole disk
1305 240 = /dev/ida/c2d15 16th logical drive whole disk
1307 Partitions are handled the same way as for Mylex
1308 DAC960 (see major number 48) except that the limit on
1311 75 char Specialix IO8+ serial card
1312 0 = /dev/ttyW0 First IO8+ port, first card
1313 1 = /dev/ttyW1 Second IO8+ port, first card
1315 8 = /dev/ttyW8 First IO8+ port, second card
1318 75 block Compaq Intelligent Drive Array, fourth controller
1319 0 = /dev/ida/c3d0 First logical drive whole disk
1320 16 = /dev/ida/c3d1 Second logical drive whole disk
1322 240 = /dev/ida/c3d15 16th logical drive whole disk
1324 Partitions are handled the same way as for Mylex
1325 DAC960 (see major number 48) except that the limit on
1328 76 char Specialix IO8+ serial card - alternate devices
1329 0 = /dev/cuw0 Callout device for ttyW0
1330 1 = /dev/cuw1 Callout device for ttyW1
1332 8 = /dev/cuw8 Callout device for ttyW8
1335 76 block Compaq Intelligent Drive Array, fifth controller
1336 0 = /dev/ida/c4d0 First logical drive whole disk
1337 16 = /dev/ida/c4d1 Second logical drive whole disk
1339 240 = /dev/ida/c4d15 16th logical drive whole disk
1341 Partitions are handled the same way as for Mylex
1342 DAC960 (see major number 48) except that the limit on
1346 77 char ComScire Quantum Noise Generator
1347 0 = /dev/qng ComScire Quantum Noise Generator
1349 77 block Compaq Intelligent Drive Array, sixth controller
1350 0 = /dev/ida/c5d0 First logical drive whole disk
1351 16 = /dev/ida/c5d1 Second logical drive whole disk
1353 240 = /dev/ida/c5d15 16th logical drive whole disk
1355 Partitions are handled the same way as for Mylex
1356 DAC960 (see major number 48) except that the limit on
1359 78 char PAM Software's multimodem boards
1360 0 = /dev/ttyM0 First PAM modem
1361 1 = /dev/ttyM1 Second PAM modem
1364 78 block Compaq Intelligent Drive Array, seventh controller
1365 0 = /dev/ida/c6d0 First logical drive whole disk
1366 16 = /dev/ida/c6d1 Second logical drive whole disk
1368 240 = /dev/ida/c6d15 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 79 char PAM Software's multimodem boards - alternate devices
1375 0 = /dev/cum0 Callout device for ttyM0
1376 1 = /dev/cum1 Callout device for ttyM1
1379 79 block Compaq Intelligent Drive Array, eighth controller
1380 0 = /dev/ida/c7d0 First logical drive whole disk
1381 16 = /dev/ida/c7d1 Second logical drive whole disk
1383 240 = /dev/ida/c715 16th logical drive whole disk
1385 Partitions are handled the same way as for Mylex
1386 DAC960 (see major number 48) except that the limit on
1389 80 char Photometrics AT200 CCD camera
1390 0 = /dev/at200 Photometrics AT200 CCD camera
1392 80 block I2O hard disk
1393 0 = /dev/i2o/hda First I2O hard disk, whole disk
1394 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1396 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1398 Partitions are handled in the same way as for IDE
1399 disks (see major number 3) except that the limit on
1403 0 = /dev/video0 Video capture/overlay device
1405 63 = /dev/video63 Video capture/overlay device
1406 64 = /dev/radio0 Radio device
1408 127 = /dev/radio63 Radio device
1409 128 = /dev/swradio0 Software Defined Radio device
1411 191 = /dev/swradio63 Software Defined Radio device
1412 224 = /dev/vbi0 Vertical blank interrupt
1414 255 = /dev/vbi31 Vertical blank interrupt
1416 Minor numbers are allocated dynamically unless
1417 CONFIG_VIDEO_FIXED_MINOR_RANGES (default n)
1418 configuration option is set.
1420 81 block I2O hard disk
1421 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1422 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1424 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1426 Partitions are handled in the same way as for IDE
1427 disks (see major number 3) except that the limit on
1430 82 char WiNRADiO communications receiver card
1431 0 = /dev/winradio0 First WiNRADiO card
1432 1 = /dev/winradio1 Second WiNRADiO card
1435 The driver and documentation may be obtained from
1436 https://www.winradio.com/
1438 82 block I2O hard disk
1439 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1440 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1442 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1444 Partitions are handled in the same way as for IDE
1445 disks (see major number 3) except that the limit on
1448 83 char Matrox mga_vid video driver
1449 0 = /dev/mga_vid0 1st video card
1450 1 = /dev/mga_vid1 2nd video card
1451 2 = /dev/mga_vid2 3rd video card
1453 15 = /dev/mga_vid15 16th video card
1455 83 block I2O hard disk
1456 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1457 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1459 240 = /dev/i2o/hdbl 64th 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
1465 84 char Ikon 1011[57] Versatec Greensheet Interface
1466 0 = /dev/ihcp0 First Greensheet port
1467 1 = /dev/ihcp1 Second Greensheet port
1469 84 block I2O hard disk
1470 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1471 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1473 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1475 Partitions are handled in the same way as for IDE
1476 disks (see major number 3) except that the limit on
1479 85 char Linux/SGI shared memory input queue
1480 0 = /dev/shmiq Master shared input queue
1481 1 = /dev/qcntl0 First device pushed
1482 2 = /dev/qcntl1 Second device pushed
1485 85 block I2O hard disk
1486 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1487 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1489 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk
1491 Partitions are handled in the same way as for IDE
1492 disks (see major number 3) except that the limit on
1495 86 char SCSI media changer
1496 0 = /dev/sch0 First SCSI media changer
1497 1 = /dev/sch1 Second SCSI media changer
1500 86 block I2O hard disk
1501 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1502 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1504 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1506 Partitions are handled in the same way as for IDE
1507 disks (see major number 3) except that the limit on
1510 87 char Sony Control-A1 stereo control bus
1511 0 = /dev/controla0 First device on chain
1512 1 = /dev/controla1 Second device on chain
1515 87 block I2O hard disk
1516 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1517 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1519 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1521 Partitions are handled in the same way as for IDE
1522 disks (see major number 3) except that the limit on
1525 88 char COMX synchronous serial card
1526 0 = /dev/comx0 COMX channel 0
1527 1 = /dev/comx1 COMX channel 1
1530 88 block Seventh IDE hard disk/CD-ROM interface
1531 0 = /dev/hdm Master: whole disk (or CD-ROM)
1532 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1534 Partitions are handled the same way as for the first
1535 interface (see major number 3).
1537 89 char I2C bus interface
1538 0 = /dev/i2c-0 First I2C adapter
1539 1 = /dev/i2c-1 Second I2C adapter
1542 89 block Eighth IDE hard disk/CD-ROM interface
1543 0 = /dev/hdo Master: whole disk (or CD-ROM)
1544 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1546 Partitions are handled the same way as for the first
1547 interface (see major number 3).
1549 90 char Memory Technology Device (RAM, ROM, Flash)
1550 0 = /dev/mtd0 First MTD (rw)
1551 1 = /dev/mtdr0 First MTD (ro)
1553 30 = /dev/mtd15 16th MTD (rw)
1554 31 = /dev/mtdr15 16th MTD (ro)
1556 90 block Ninth IDE hard disk/CD-ROM interface
1557 0 = /dev/hdq Master: whole disk (or CD-ROM)
1558 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1560 Partitions are handled the same way as for the first
1561 interface (see major number 3).
1563 91 char CAN-Bus devices
1564 0 = /dev/can0 First CAN-Bus controller
1565 1 = /dev/can1 Second CAN-Bus controller
1568 91 block Tenth IDE hard disk/CD-ROM interface
1569 0 = /dev/hds Master: whole disk (or CD-ROM)
1570 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1572 Partitions are handled the same way as for the first
1573 interface (see major number 3).
1575 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1577 92 block PPDD encrypted disk driver
1578 0 = /dev/ppdd0 First encrypted disk
1579 1 = /dev/ppdd1 Second encrypted disk
1582 Partitions are handled in the same way as for IDE
1583 disks (see major number 3) except that the limit on
1588 93 block NAND Flash Translation Layer filesystem
1589 0 = /dev/nftla First NFTL layer
1590 16 = /dev/nftlb Second NFTL layer
1592 240 = /dev/nftlp 16th NTFL layer
1596 94 block IBM S/390 DASD block storage
1597 0 = /dev/dasda First DASD device, major
1598 1 = /dev/dasda1 First DASD device, block 1
1599 2 = /dev/dasda2 First DASD device, block 2
1600 3 = /dev/dasda3 First DASD device, block 3
1601 4 = /dev/dasdb Second DASD device, major
1602 5 = /dev/dasdb1 Second DASD device, block 1
1603 6 = /dev/dasdb2 Second DASD device, block 2
1604 7 = /dev/dasdb3 Second DASD device, block 3
1608 0 = /dev/ipl Filter control device/log file
1609 1 = /dev/ipnat NAT control device/log file
1610 2 = /dev/ipstate State information log file
1611 3 = /dev/ipauth Authentication control device/log file
1614 96 char Parallel port ATAPI tape devices
1615 0 = /dev/pt0 First parallel port ATAPI tape
1616 1 = /dev/pt1 Second parallel port ATAPI tape
1618 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1619 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1622 96 block Inverse NAND Flash Translation Layer
1623 0 = /dev/inftla First INFTL layer
1624 16 = /dev/inftlb Second INFTL layer
1626 240 = /dev/inftlp 16th INTFL layer
1628 97 char Parallel port generic ATAPI interface
1629 0 = /dev/pg0 First parallel port ATAPI device
1630 1 = /dev/pg1 Second parallel port ATAPI device
1631 2 = /dev/pg2 Third parallel port ATAPI device
1632 3 = /dev/pg3 Fourth parallel port ATAPI device
1634 These devices support the same API as the generic SCSI
1637 98 char Control and Measurement Device (comedi)
1638 0 = /dev/comedi0 First comedi device
1639 1 = /dev/comedi1 Second comedi device
1641 47 = /dev/comedi47 48th comedi device
1643 Minors 48 to 255 are reserved for comedi subdevices with
1644 pathnames of the form "/dev/comediX_subdY", where "X" is the
1645 minor number of the associated comedi device and "Y" is the
1646 subdevice number. These subdevice minors are assigned
1647 dynamically, so there is no fixed mapping from subdevice
1648 pathnames to minor numbers.
1650 See https://www.comedi.org/ for information about the Comedi
1653 98 block User-mode virtual block device
1654 0 = /dev/ubda First user-mode block device
1655 16 = /dev/ubdb Second user-mode block device
1658 Partitions are handled in the same way as for IDE
1659 disks (see major number 3) except that the limit on
1662 This device is used by the user-mode virtual kernel port.
1664 99 char Raw parallel ports
1665 0 = /dev/parport0 First parallel port
1666 1 = /dev/parport1 Second parallel port
1669 99 block JavaStation flash disk
1670 0 = /dev/jsfd JavaStation flash disk
1672 100 char Telephony for Linux
1673 0 = /dev/phone0 First telephony device
1674 1 = /dev/phone1 Second telephony device
1677 101 char Motorola DSP 56xxx board
1678 0 = /dev/mdspstat Status information
1679 1 = /dev/mdsp1 First DSP board I/O controls
1681 16 = /dev/mdsp16 16th DSP board I/O controls
1683 101 block AMI HyperDisk RAID controller
1684 0 = /dev/amiraid/ar0 First array whole disk
1685 16 = /dev/amiraid/ar1 Second array whole disk
1687 240 = /dev/amiraid/ar15 16th array whole disk
1689 For each device, partitions are added as:
1690 0 = /dev/amiraid/ar? Whole disk
1691 1 = /dev/amiraid/ar?p1 First partition
1692 2 = /dev/amiraid/ar?p2 Second partition
1694 15 = /dev/amiraid/ar?p15 15th partition
1698 102 block Compressed block device
1699 0 = /dev/cbd/a First compressed block device, whole device
1700 16 = /dev/cbd/b Second compressed block device, whole device
1702 240 = /dev/cbd/p 16th compressed block device, whole device
1704 Partitions are handled in the same way as for IDE
1705 disks (see major number 3) except that the limit on
1708 103 char Arla network file system
1709 0 = /dev/nnpfs0 First NNPFS device
1710 1 = /dev/nnpfs1 Second NNPFS device
1712 Arla is a free clone of the Andrew File System, AFS.
1713 The NNPFS device gives user mode filesystem
1714 implementations a kernel presence for caching and easy
1715 mounting. For more information about the project,
1716 write to <arla-drinkers@stacken.kth.se> or see
1717 https://www.stacken.kth.se/project/arla/
1719 103 block Audit device
1720 0 = /dev/audit Audit device
1722 104 char Flash BIOS support
1724 104 block Compaq Next Generation Drive Array, first controller
1725 0 = /dev/cciss/c0d0 First logical drive, whole disk
1726 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1728 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1730 Partitions are handled the same way as for Mylex
1731 DAC960 (see major number 48) except that the limit on
1734 105 char Comtrol VS-1000 serial controller
1735 0 = /dev/ttyV0 First VS-1000 port
1736 1 = /dev/ttyV1 Second VS-1000 port
1739 105 block Compaq Next Generation Drive Array, second controller
1740 0 = /dev/cciss/c1d0 First logical drive, whole disk
1741 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1743 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1745 Partitions are handled the same way as for Mylex
1746 DAC960 (see major number 48) except that the limit on
1749 106 char Comtrol VS-1000 serial controller - alternate devices
1750 0 = /dev/cuv0 First VS-1000 port
1751 1 = /dev/cuv1 Second VS-1000 port
1754 106 block Compaq Next Generation Drive Array, third controller
1755 0 = /dev/cciss/c2d0 First logical drive, whole disk
1756 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1758 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1760 Partitions are handled the same way as for Mylex
1761 DAC960 (see major number 48) except that the limit on
1764 107 char 3Dfx Voodoo Graphics device
1765 0 = /dev/3dfx Primary 3Dfx graphics device
1767 107 block Compaq Next Generation Drive Array, fourth controller
1768 0 = /dev/cciss/c3d0 First logical drive, whole disk
1769 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1771 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1773 Partitions are handled the same way as for Mylex
1774 DAC960 (see major number 48) except that the limit on
1777 108 char Device independent PPP interface
1778 0 = /dev/ppp Device independent PPP interface
1780 108 block Compaq Next Generation Drive Array, fifth controller
1781 0 = /dev/cciss/c4d0 First logical drive, whole disk
1782 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1784 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1786 Partitions are handled the same way as for Mylex
1787 DAC960 (see major number 48) except that the limit on
1790 109 char Reserved for logical volume manager
1792 109 block Compaq Next Generation Drive Array, sixth controller
1793 0 = /dev/cciss/c5d0 First logical drive, whole disk
1794 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1796 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1798 Partitions are handled the same way as for Mylex
1799 DAC960 (see major number 48) except that the limit on
1802 110 char miroMEDIA Surround board
1803 0 = /dev/srnd0 First miroMEDIA Surround board
1804 1 = /dev/srnd1 Second miroMEDIA Surround board
1807 110 block Compaq Next Generation Drive Array, seventh controller
1808 0 = /dev/cciss/c6d0 First logical drive, whole disk
1809 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1811 240 = /dev/cciss/c6d15 16th logical drive, whole disk
1813 Partitions are handled the same way as for Mylex
1814 DAC960 (see major number 48) except that the limit on
1819 111 block Compaq Next Generation Drive Array, eighth controller
1820 0 = /dev/cciss/c7d0 First logical drive, whole disk
1821 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1823 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1825 Partitions are handled the same way as for Mylex
1826 DAC960 (see major number 48) except that the limit on
1829 112 char ISI serial card
1830 0 = /dev/ttyM0 First ISI port
1831 1 = /dev/ttyM1 Second ISI port
1834 There is currently a device-naming conflict between
1835 these and PAM multimodems (major 78).
1837 112 block IBM iSeries virtual disk
1838 0 = /dev/iseries/vda First virtual disk, whole disk
1839 8 = /dev/iseries/vdb Second virtual disk, whole disk
1841 200 = /dev/iseries/vdz 26th virtual disk, whole disk
1842 208 = /dev/iseries/vdaa 27th virtual disk, whole disk
1844 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk
1846 Partitions are handled in the same way as for IDE
1847 disks (see major number 3) except that the limit on
1850 113 char ISI serial card - alternate devices
1851 0 = /dev/cum0 Callout device for ttyM0
1852 1 = /dev/cum1 Callout device for ttyM1
1855 113 block IBM iSeries virtual CD-ROM
1856 0 = /dev/iseries/vcda First virtual CD-ROM
1857 1 = /dev/iseries/vcdb Second virtual CD-ROM
1860 114 char Picture Elements ISE board
1861 0 = /dev/ise0 First ISE board
1862 1 = /dev/ise1 Second ISE board
1864 128 = /dev/isex0 Control node for first ISE board
1865 129 = /dev/isex1 Control node for second ISE board
1868 The ISE board is an embedded computer, optimized for
1869 image processing. The /dev/iseN nodes are the general
1870 I/O access to the board, the /dev/isex0 nodes command
1871 nodes used to control the board.
1873 114 block IDE BIOS powered software RAID interfaces such as the
1877 1 = /dev/ataraid/d0p1
1878 2 = /dev/ataraid/d0p2
1880 16 = /dev/ataraid/d1
1881 17 = /dev/ataraid/d1p1
1882 18 = /dev/ataraid/d1p2
1884 255 = /dev/ataraid/d15p15
1886 Partitions are handled in the same way as for IDE
1887 disks (see major number 3) except that the limit on
1890 115 char TI link cable devices (115 was formerly the console driver speaker)
1891 0 = /dev/tipar0 Parallel cable on first parallel port
1893 7 = /dev/tipar7 Parallel cable on seventh parallel port
1895 8 = /dev/tiser0 Serial cable on first serial port
1897 15 = /dev/tiser7 Serial cable on seventh serial port
1899 16 = /dev/tiusb0 First USB cable
1901 47 = /dev/tiusb31 32nd USB cable
1903 115 block NetWare (NWFS) Devices (0-255)
1905 The NWFS (NetWare) devices are used to present a
1906 collection of NetWare Mirror Groups or NetWare
1907 Partitions as a logical storage segment for
1908 use in mounting NetWare volumes. A maximum of
1909 256 NetWare volumes can be supported in a single
1912 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
1914 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
1915 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
1916 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
1918 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
1920 116 char Advanced Linux Sound Driver (ALSA)
1922 116 block MicroMemory battery backed RAM adapter (NVRAM)
1923 Supports 16 boards, 15 partitions each.
1924 Requested by neilb at cse.unsw.edu.au.
1926 0 = /dev/umem/d0 Whole of first board
1927 1 = /dev/umem/d0p1 First partition of first board
1928 2 = /dev/umem/d0p2 Second partition of first board
1929 15 = /dev/umem/d0p15 15th partition of first board
1931 16 = /dev/umem/d1 Whole of second board
1932 17 = /dev/umem/d1p1 First partition of second board
1934 255= /dev/umem/d15p15 15th partition of 16th board.
1936 117 char COSA/SRP synchronous serial card
1937 0 = /dev/cosa0c0 1st board, 1st channel
1938 1 = /dev/cosa0c1 1st board, 2nd channel
1940 16 = /dev/cosa1c0 2nd board, 1st channel
1941 17 = /dev/cosa1c1 2nd board, 2nd channel
1944 117 block Enterprise Volume Management System (EVMS)
1946 The EVMS driver uses a layered, plug-in model to provide
1947 unparalleled flexibility and extensibility in managing
1948 storage. This allows for easy expansion or customization
1949 of various levels of volume management. Requested by
1950 Mark Peloquin (peloquin at us.ibm.com).
1952 Note: EVMS populates and manages all the devnodes in
1955 http://sf.net/projects/evms
1957 0 = /dev/evms/block_device EVMS block device
1958 1 = /dev/evms/legacyname1 First EVMS legacy device
1959 2 = /dev/evms/legacyname2 Second EVMS legacy device
1961 Both ranges can grow (down or up) until they meet.
1963 254 = /dev/evms/EVMSname2 Second EVMS native device
1964 255 = /dev/evms/EVMSname1 First EVMS native device
1966 Note: legacyname(s) are derived from the normal legacy
1967 device names. For example, /dev/hda5 would become
1970 118 char IBM Cryptographic Accelerator
1971 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators
1972 1 = /dev/ica0 IBMCA Device 0
1973 2 = /dev/ica1 IBMCA Device 1
1976 119 char VMware virtual network control
1977 0 = /dev/vnet0 1st virtual network
1978 1 = /dev/vnet1 2nd virtual network
1981 120-127 char LOCAL/EXPERIMENTAL USE
1983 120-127 block LOCAL/EXPERIMENTAL USE
1984 Allocated for local/experimental use. For devices not
1985 assigned official numbers, these ranges should be
1986 used in order to avoid conflicting with future assignments.
1988 128-135 char Unix98 PTY masters
1990 These devices should not have corresponding device
1991 nodes; instead they should be accessed through the
1992 /dev/ptmx cloning interface.
1994 128 block SCSI disk devices (128-143)
1995 0 = /dev/sddy 129th SCSI disk whole disk
1996 16 = /dev/sddz 130th SCSI disk whole disk
1997 32 = /dev/sdea 131th SCSI disk whole disk
1999 240 = /dev/sden 144th SCSI disk whole disk
2001 Partitions are handled in the same way as for IDE
2002 disks (see major number 3) except that the limit on
2005 129 block SCSI disk devices (144-159)
2006 0 = /dev/sdeo 145th SCSI disk whole disk
2007 16 = /dev/sdep 146th SCSI disk whole disk
2008 32 = /dev/sdeq 147th SCSI disk whole disk
2010 240 = /dev/sdfd 160th SCSI disk whole disk
2012 Partitions are handled in the same way as for IDE
2013 disks (see major number 3) except that the limit on
2016 130 char (Misc devices)
2018 130 block SCSI disk devices (160-175)
2019 0 = /dev/sdfe 161st SCSI disk whole disk
2020 16 = /dev/sdff 162nd SCSI disk whole disk
2021 32 = /dev/sdfg 163rd SCSI disk whole disk
2023 240 = /dev/sdft 176th SCSI disk whole disk
2025 Partitions are handled in the same way as for IDE
2026 disks (see major number 3) except that the limit on
2029 131 block SCSI disk devices (176-191)
2030 0 = /dev/sdfu 177th SCSI disk whole disk
2031 16 = /dev/sdfv 178th SCSI disk whole disk
2032 32 = /dev/sdfw 179th SCSI disk whole disk
2034 240 = /dev/sdgj 192nd SCSI disk whole disk
2036 Partitions are handled in the same way as for IDE
2037 disks (see major number 3) except that the limit on
2040 132 block SCSI disk devices (192-207)
2041 0 = /dev/sdgk 193rd SCSI disk whole disk
2042 16 = /dev/sdgl 194th SCSI disk whole disk
2043 32 = /dev/sdgm 195th SCSI disk whole disk
2045 240 = /dev/sdgz 208th SCSI disk whole disk
2047 Partitions are handled in the same way as for IDE
2048 disks (see major number 3) except that the limit on
2051 133 block SCSI disk devices (208-223)
2052 0 = /dev/sdha 209th SCSI disk whole disk
2053 16 = /dev/sdhb 210th SCSI disk whole disk
2054 32 = /dev/sdhc 211th SCSI disk whole disk
2056 240 = /dev/sdhp 224th SCSI disk whole disk
2058 Partitions are handled in the same way as for IDE
2059 disks (see major number 3) except that the limit on
2062 134 block SCSI disk devices (224-239)
2063 0 = /dev/sdhq 225th SCSI disk whole disk
2064 16 = /dev/sdhr 226th SCSI disk whole disk
2065 32 = /dev/sdhs 227th SCSI disk whole disk
2067 240 = /dev/sdif 240th SCSI disk whole disk
2069 Partitions are handled in the same way as for IDE
2070 disks (see major number 3) except that the limit on
2073 135 block SCSI disk devices (240-255)
2074 0 = /dev/sdig 241st SCSI disk whole disk
2075 16 = /dev/sdih 242nd SCSI disk whole disk
2076 32 = /dev/sdih 243rd SCSI disk whole disk
2078 240 = /dev/sdiv 256th SCSI disk whole disk
2080 Partitions are handled in the same way as for IDE
2081 disks (see major number 3) except that the limit on
2084 136-143 char Unix98 PTY slaves
2085 0 = /dev/pts/0 First Unix98 pseudo-TTY
2086 1 = /dev/pts/1 Second Unix98 pseudo-TTY
2089 These device nodes are automatically generated with
2090 the proper permissions and modes by mounting the
2091 devpts filesystem onto /dev/pts with the appropriate
2092 mount options (distribution dependent, however, on
2093 *most* distributions the appropriate options are
2094 "mode=0620,gid=<gid of the "tty" group>".)
2096 136 block Mylex DAC960 PCI RAID controller; ninth controller
2097 0 = /dev/rd/c8d0 First disk, whole disk
2098 8 = /dev/rd/c8d1 Second disk, whole disk
2100 248 = /dev/rd/c8d31 32nd disk, whole disk
2102 Partitions are handled as for major 48.
2104 137 block Mylex DAC960 PCI RAID controller; tenth controller
2105 0 = /dev/rd/c9d0 First disk, whole disk
2106 8 = /dev/rd/c9d1 Second disk, whole disk
2108 248 = /dev/rd/c9d31 32nd disk, whole disk
2110 Partitions are handled as for major 48.
2112 138 block Mylex DAC960 PCI RAID controller; eleventh controller
2113 0 = /dev/rd/c10d0 First disk, whole disk
2114 8 = /dev/rd/c10d1 Second disk, whole disk
2116 248 = /dev/rd/c10d31 32nd disk, whole disk
2118 Partitions are handled as for major 48.
2120 139 block Mylex DAC960 PCI RAID controller; twelfth controller
2121 0 = /dev/rd/c11d0 First disk, whole disk
2122 8 = /dev/rd/c11d1 Second disk, whole disk
2124 248 = /dev/rd/c11d31 32nd disk, whole disk
2126 Partitions are handled as for major 48.
2128 140 block Mylex DAC960 PCI RAID controller; thirteenth controller
2129 0 = /dev/rd/c12d0 First disk, whole disk
2130 8 = /dev/rd/c12d1 Second disk, whole disk
2132 248 = /dev/rd/c12d31 32nd disk, whole disk
2134 Partitions are handled as for major 48.
2136 141 block Mylex DAC960 PCI RAID controller; fourteenth controller
2137 0 = /dev/rd/c13d0 First disk, whole disk
2138 8 = /dev/rd/c13d1 Second disk, whole disk
2140 248 = /dev/rd/c13d31 32nd disk, whole disk
2142 Partitions are handled as for major 48.
2144 142 block Mylex DAC960 PCI RAID controller; fifteenth controller
2145 0 = /dev/rd/c14d0 First disk, whole disk
2146 8 = /dev/rd/c14d1 Second disk, whole disk
2148 248 = /dev/rd/c14d31 32nd disk, whole disk
2150 Partitions are handled as for major 48.
2152 143 block Mylex DAC960 PCI RAID controller; sixteenth controller
2153 0 = /dev/rd/c15d0 First disk, whole disk
2154 8 = /dev/rd/c15d1 Second disk, whole disk
2156 248 = /dev/rd/c15d31 32nd disk, whole disk
2158 Partitions are handled as for major 48.
2160 144 char Encapsulated PPP
2161 0 = /dev/pppox0 First PPP over Ethernet
2163 63 = /dev/pppox63 64th PPP over Ethernet
2165 This is primarily used for ADSL.
2167 The SST 5136-DN DeviceNet interface driver has been
2168 relocated to major 183 due to an unfortunate conflict.
2170 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
2171 0 = mounted device 256
2172 255 = mounted device 511
2174 145 char SAM9407-based soundcard
2176 1 = /dev/sam0_sequencer
2177 2 = /dev/sam0_midi00
2180 6 = /dev/sam0_sndstat
2181 18 = /dev/sam0_midi01
2182 34 = /dev/sam0_midi02
2183 50 = /dev/sam0_midi03
2184 64 = /dev/sam1_mixer
2186 128 = /dev/sam2_mixer
2188 192 = /dev/sam3_mixer
2191 Device functions match OSS, but offer a number of
2192 addons, which are sam9407 specific. OSS can be
2193 operated simultaneously, taking care of the codec.
2195 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
2196 0 = mounted device 512
2197 255 = mounted device 767
2199 146 char SYSTRAM SCRAMNet mirrored-memory network
2200 0 = /dev/scramnet0 First SCRAMNet device
2201 1 = /dev/scramnet1 Second SCRAMNet device
2204 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
2205 0 = mounted device 768
2206 255 = mounted device 1023
2208 147 char Aureal Semiconductor Vortex Audio device
2209 0 = /dev/aureal0 First Aureal Vortex
2210 1 = /dev/aureal1 Second Aureal Vortex
2213 147 block Distributed Replicated Block Device (DRBD)
2214 0 = /dev/drbd0 First DRBD device
2215 1 = /dev/drbd1 Second DRBD device
2218 148 char Technology Concepts serial card
2219 0 = /dev/ttyT0 First TCL port
2220 1 = /dev/ttyT1 Second TCL port
2223 149 char Technology Concepts serial card - alternate devices
2224 0 = /dev/cut0 Callout device for ttyT0
2225 1 = /dev/cut0 Callout device for ttyT1
2228 150 char Real-Time Linux FIFOs
2229 0 = /dev/rtf0 First RTLinux FIFO
2230 1 = /dev/rtf1 Second RTLinux FIFO
2233 151 char DPT I2O SmartRaid V controller
2234 0 = /dev/dpti0 First DPT I2O adapter
2235 1 = /dev/dpti1 Second DPT I2O adapter
2238 152 char EtherDrive Control Device
2239 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive
2240 1 = /dev/etherd/err Monitor errors
2241 2 = /dev/etherd/raw Raw AoE packet monitor
2243 152 block EtherDrive Block Devices
2244 0 = /dev/etherd/0 EtherDrive 0
2246 255 = /dev/etherd/255 EtherDrive 255
2248 153 char SPI Bus Interface (sometimes referred to as MicroWire)
2249 0 = /dev/spi0 First SPI device on the bus
2250 1 = /dev/spi1 Second SPI device on the bus
2252 15 = /dev/spi15 Sixteenth SPI device on the bus
2254 153 block Enhanced Metadisk RAID (EMD) storage units
2255 0 = /dev/emd/0 First unit
2256 1 = /dev/emd/0p1 Partition 1 on First unit
2257 2 = /dev/emd/0p2 Partition 2 on First unit
2259 15 = /dev/emd/0p15 Partition 15 on First unit
2261 16 = /dev/emd/1 Second unit
2262 32 = /dev/emd/2 Third unit
2264 240 = /dev/emd/15 Sixteenth unit
2266 Partitions are handled in the same way as for IDE
2267 disks (see major number 3) except that the limit on
2270 154 char Specialix RIO serial card
2271 0 = /dev/ttySR0 First RIO port
2273 255 = /dev/ttySR255 256th RIO port
2275 155 char Specialix RIO serial card - alternate devices
2276 0 = /dev/cusr0 Callout device for ttySR0
2278 255 = /dev/cusr255 Callout device for ttySR255
2280 156 char Specialix RIO serial card
2281 0 = /dev/ttySR256 257th RIO port
2283 255 = /dev/ttySR511 512th RIO port
2285 157 char Specialix RIO serial card - alternate devices
2286 0 = /dev/cusr256 Callout device for ttySR256
2288 255 = /dev/cusr511 Callout device for ttySR511
2290 158 char Dialogic GammaLink fax driver
2291 0 = /dev/gfax0 GammaLink channel 0
2292 1 = /dev/gfax1 GammaLink channel 1
2299 160 char General Purpose Instrument Bus (GPIB)
2300 0 = /dev/gpib0 First GPIB bus
2301 1 = /dev/gpib1 Second GPIB bus
2304 160 block Carmel 8-port SATA Disks on First Controller
2305 0 = /dev/carmel/0 SATA disk 0 whole disk
2306 1 = /dev/carmel/0p1 SATA disk 0 partition 1
2308 31 = /dev/carmel/0p31 SATA disk 0 partition 31
2310 32 = /dev/carmel/1 SATA disk 1 whole disk
2311 64 = /dev/carmel/2 SATA disk 2 whole disk
2313 224 = /dev/carmel/7 SATA disk 7 whole disk
2315 Partitions are handled in the same way as for IDE
2316 disks (see major number 3) except that the limit on
2319 161 char IrCOMM devices (IrDA serial/parallel emulation)
2320 0 = /dev/ircomm0 First IrCOMM device
2321 1 = /dev/ircomm1 Second IrCOMM device
2323 16 = /dev/irlpt0 First IrLPT device
2324 17 = /dev/irlpt1 Second IrLPT device
2327 161 block Carmel 8-port SATA Disks on Second Controller
2328 0 = /dev/carmel/8 SATA disk 8 whole disk
2329 1 = /dev/carmel/8p1 SATA disk 8 partition 1
2331 31 = /dev/carmel/8p31 SATA disk 8 partition 31
2333 32 = /dev/carmel/9 SATA disk 9 whole disk
2334 64 = /dev/carmel/10 SATA disk 10 whole disk
2336 224 = /dev/carmel/15 SATA disk 15 whole disk
2338 Partitions are handled in the same way as for IDE
2339 disks (see major number 3) except that the limit on
2342 162 char Raw block device interface
2343 0 = /dev/rawctl Raw I/O control device
2344 1 = /dev/raw/raw1 First raw I/O device
2345 2 = /dev/raw/raw2 Second raw I/O device
2347 max minor number of raw device is set by kernel config
2348 MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
2352 164 char Chase Research AT/PCI-Fast serial card
2353 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2355 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2356 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2358 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2359 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2361 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2362 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2364 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2366 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2367 0 = /dev/cuch0 Callout device for ttyCH0
2369 63 = /dev/cuch63 Callout device for ttyCH63
2371 166 char ACM USB modems
2372 0 = /dev/ttyACM0 First ACM modem
2373 1 = /dev/ttyACM1 Second ACM modem
2376 167 char ACM USB modems - alternate devices
2377 0 = /dev/cuacm0 Callout device for ttyACM0
2378 1 = /dev/cuacm1 Callout device for ttyACM1
2381 168 char Eracom CSA7000 PCI encryption adaptor
2382 0 = /dev/ecsa0 First CSA7000
2383 1 = /dev/ecsa1 Second CSA7000
2386 169 char Eracom CSA8000 PCI encryption adaptor
2387 0 = /dev/ecsa8-0 First CSA8000
2388 1 = /dev/ecsa8-1 Second CSA8000
2391 170 char AMI MegaRAC remote access controller
2392 0 = /dev/megarac0 First MegaRAC card
2393 1 = /dev/megarac1 Second MegaRAC card
2396 171 char Reserved for IEEE 1394 (Firewire)
2398 172 char Moxa Intellio serial card
2399 0 = /dev/ttyMX0 First Moxa port
2400 1 = /dev/ttyMX1 Second Moxa port
2402 127 = /dev/ttyMX127 128th Moxa port
2403 128 = /dev/moxactl Moxa control port
2405 173 char Moxa Intellio serial card - alternate devices
2406 0 = /dev/cumx0 Callout device for ttyMX0
2407 1 = /dev/cumx1 Callout device for ttyMX1
2409 127 = /dev/cumx127 Callout device for ttyMX127
2411 174 char SmartIO serial card
2412 0 = /dev/ttySI0 First SmartIO port
2413 1 = /dev/ttySI1 Second SmartIO port
2416 175 char SmartIO serial card - alternate devices
2417 0 = /dev/cusi0 Callout device for ttySI0
2418 1 = /dev/cusi1 Callout device for ttySI1
2421 176 char nCipher nFast PCI crypto accelerator
2422 0 = /dev/nfastpci0 First nFast PCI device
2423 1 = /dev/nfastpci1 First nFast PCI device
2426 177 char TI PCILynx memory spaces
2427 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2429 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2430 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2432 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2433 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2435 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2437 178 char Giganet cLAN1xxx virtual interface adapter
2438 0 = /dev/clanvi0 First cLAN adapter
2439 1 = /dev/clanvi1 Second cLAN adapter
2442 179 block MMC block devices
2443 0 = /dev/mmcblk0 First SD/MMC card
2444 1 = /dev/mmcblk0p1 First partition on first MMC card
2445 8 = /dev/mmcblk1 Second SD/MMC card
2448 The start of next SD/MMC card can be configured with
2449 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe
2450 time using the mmcblk.perdev_minors option. That would
2451 bump the offset between each card to be the configured
2452 value instead of the default 8.
2454 179 char CCube DVXChip-based PCI products
2455 0 = /dev/dvxirq0 First DVX device
2456 1 = /dev/dvxirq1 Second DVX device
2459 180 char USB devices
2460 0 = /dev/usb/lp0 First USB printer
2462 15 = /dev/usb/lp15 16th USB printer
2463 48 = /dev/usb/scanner0 First USB scanner
2465 63 = /dev/usb/scanner15 16th USB scanner
2466 64 = /dev/usb/rio500 Diamond Rio 500
2467 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de)
2468 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD)
2469 96 = /dev/usb/hiddev0 1st USB HID device
2471 111 = /dev/usb/hiddev15 16th USB HID device
2472 112 = /dev/usb/auer0 1st auerswald ISDN device
2474 127 = /dev/usb/auer15 16th auerswald ISDN device
2475 128 = /dev/usb/brlvgr0 First Braille Voyager device
2477 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device
2478 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device
2479 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device
2481 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device
2482 144 = /dev/usb/lcd USB LCD device
2483 160 = /dev/usb/legousbtower0 1st USB Legotower device
2485 175 = /dev/usb/legousbtower15 16th USB Legotower device
2486 176 = /dev/usb/usbtmc1 First USB TMC device
2488 191 = /dev/usb/usbtmc16 16th USB TMC device
2489 192 = /dev/usb/yurex1 First USB Yurex device
2491 209 = /dev/usb/yurex16 16th USB Yurex device
2493 180 block USB block devices
2494 0 = /dev/uba First USB block device
2495 8 = /dev/ubb Second USB block device
2496 16 = /dev/ubc Third USB block device
2499 181 char Conrad Electronic parallel port radio clocks
2500 0 = /dev/pcfclock0 First Conrad radio clock
2501 1 = /dev/pcfclock1 Second Conrad radio clock
2504 182 char Picture Elements THR2 binarizer
2505 0 = /dev/pethr0 First THR2 board
2506 1 = /dev/pethr1 Second THR2 board
2509 183 char SST 5136-DN DeviceNet interface
2510 0 = /dev/ss5136dn0 First DeviceNet interface
2511 1 = /dev/ss5136dn1 Second DeviceNet interface
2514 This device used to be assigned to major number 144.
2515 It had to be moved due to an unfortunate conflict.
2517 184 char Picture Elements' video simulator/sender
2518 0 = /dev/pevss0 First sender board
2519 1 = /dev/pevss1 Second sender board
2522 185 char InterMezzo high availability file system
2523 0 = /dev/intermezzo0 First cache manager
2524 1 = /dev/intermezzo1 Second cache manager
2527 See http://web.archive.org/web/20080115195241/
2528 http://inter-mezzo.org/index.html
2530 186 char Object-based storage control device
2531 0 = /dev/obd0 First obd control device
2532 1 = /dev/obd1 Second obd control device
2535 See ftp://ftp.lustre.org/pub/obd for code and information.
2537 187 char DESkey hardware encryption device
2538 0 = /dev/deskey0 First DES key
2539 1 = /dev/deskey1 Second DES key
2542 188 char USB serial converters
2543 0 = /dev/ttyUSB0 First USB serial converter
2544 1 = /dev/ttyUSB1 Second USB serial converter
2547 189 char USB serial converters - alternate devices
2548 0 = /dev/cuusb0 Callout device for ttyUSB0
2549 1 = /dev/cuusb1 Callout device for ttyUSB1
2552 190 char Kansas City tracker/tuner card
2553 0 = /dev/kctt0 First KCT/T card
2554 1 = /dev/kctt1 Second KCT/T card
2557 191 char Reserved for PCMCIA
2559 192 char Kernel profiling interface
2560 0 = /dev/profile Profiling control device
2561 1 = /dev/profile0 Profiling device for CPU 0
2562 2 = /dev/profile1 Profiling device for CPU 1
2565 193 char Kernel event-tracing interface
2566 0 = /dev/trace Tracing control device
2567 1 = /dev/trace0 Tracing device for CPU 0
2568 2 = /dev/trace1 Tracing device for CPU 1
2571 194 char linVideoStreams (LINVS)
2572 0 = /dev/mvideo/status0 Video compression status
2573 1 = /dev/mvideo/stream0 Video stream
2574 2 = /dev/mvideo/frame0 Single compressed frame
2575 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2576 4 = /dev/mvideo/codec0 Direct codec access
2577 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2579 16 = /dev/mvideo/status1 Second device
2581 32 = /dev/mvideo/status2 Third device
2584 240 = /dev/mvideo/status15 16th device
2587 195 char Nvidia graphics devices
2588 0 = /dev/nvidia0 First Nvidia card
2589 1 = /dev/nvidia1 Second Nvidia card
2591 255 = /dev/nvidiactl Nvidia card control device
2593 196 char Tormenta T1 card
2594 0 = /dev/tor/0 Master control channel for all cards
2595 1 = /dev/tor/1 First DS0
2596 2 = /dev/tor/2 Second DS0
2598 48 = /dev/tor/48 48th DS0
2599 49 = /dev/tor/49 First pseudo-channel
2600 50 = /dev/tor/50 Second pseudo-channel
2603 197 char OpenTNF tracing facility
2604 0 = /dev/tnf/t0 Trace 0 data extraction
2605 1 = /dev/tnf/t1 Trace 1 data extraction
2607 128 = /dev/tnf/status Tracing facility status
2608 130 = /dev/tnf/trace Tracing device
2610 198 char Total Impact TPMP2 quad coprocessor PCI card
2611 0 = /dev/tpmp2/0 First card
2612 1 = /dev/tpmp2/1 Second card
2615 199 char Veritas volume manager (VxVM) volumes
2616 0 = /dev/vx/rdsk/*/* First volume
2617 1 = /dev/vx/rdsk/*/* Second volume
2620 199 block Veritas volume manager (VxVM) volumes
2621 0 = /dev/vx/dsk/*/* First volume
2622 1 = /dev/vx/dsk/*/* Second volume
2625 The namespace in these directories is maintained by
2626 the user space VxVM software.
2628 200 char Veritas VxVM configuration interface
2629 0 = /dev/vx/config Configuration access node
2630 1 = /dev/vx/trace Volume i/o trace access node
2631 2 = /dev/vx/iod Volume i/o daemon access node
2632 3 = /dev/vx/info Volume information access node
2633 4 = /dev/vx/task Volume tasks access node
2634 5 = /dev/vx/taskmon Volume tasks monitor daemon
2636 201 char Veritas VxVM dynamic multipathing driver
2637 0 = /dev/vx/rdmp/* First multipath device
2638 1 = /dev/vx/rdmp/* Second multipath device
2640 201 block Veritas VxVM dynamic multipathing driver
2641 0 = /dev/vx/dmp/* First multipath device
2642 1 = /dev/vx/dmp/* Second multipath device
2645 The namespace in these directories is maintained by
2646 the user space VxVM software.
2648 202 char CPU model-specific registers
2649 0 = /dev/cpu/0/msr MSRs on CPU 0
2650 1 = /dev/cpu/1/msr MSRs on CPU 1
2653 202 block Xen Virtual Block Device
2654 0 = /dev/xvda First Xen VBD whole disk
2655 16 = /dev/xvdb Second Xen VBD whole disk
2656 32 = /dev/xvdc Third Xen VBD whole disk
2658 240 = /dev/xvdp Sixteenth Xen VBD whole disk
2660 Partitions are handled in the same way as for IDE
2661 disks (see major number 3) except that the limit on
2664 203 char CPU CPUID information
2665 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2666 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2669 204 char Low-density serial ports
2670 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2671 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2672 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2673 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2674 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2675 5 = /dev/ttySA0 StrongARM builtin serial port 0
2676 6 = /dev/ttySA1 StrongARM builtin serial port 1
2677 7 = /dev/ttySA2 StrongARM builtin serial port 2
2678 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2679 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2680 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2681 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2682 12 = /dev/ttyFW0 Firmware console - port 0
2683 13 = /dev/ttyFW1 Firmware console - port 1
2684 14 = /dev/ttyFW2 Firmware console - port 2
2685 15 = /dev/ttyFW3 Firmware console - port 3
2686 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2688 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2689 32 = /dev/ttyDB0 DataBooster serial port 0
2691 39 = /dev/ttyDB7 DataBooster serial port 7
2692 40 = /dev/ttySG0 SGI Altix console port
2693 41 = /dev/ttySMX0 Motorola i.MX - port 0
2694 42 = /dev/ttySMX1 Motorola i.MX - port 1
2695 43 = /dev/ttySMX2 Motorola i.MX - port 2
2696 44 = /dev/ttyMM0 Marvell MPSC - port 0 (obsolete unused)
2697 45 = /dev/ttyMM1 Marvell MPSC - port 1 (obsolete unused)
2698 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0
2700 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
2701 50 = /dev/ttyIOC0 Altix serial card
2703 81 = /dev/ttyIOC31 Altix serial card
2704 82 = /dev/ttyVR0 NEC VR4100 series SIU
2705 83 = /dev/ttyVR1 NEC VR4100 series DSIU
2706 84 = /dev/ttyIOC84 Altix ioc4 serial card
2708 115 = /dev/ttyIOC115 Altix ioc4 serial card
2709 116 = /dev/ttySIOC0 Altix ioc3 serial card
2711 147 = /dev/ttySIOC31 Altix ioc3 serial card
2712 148 = /dev/ttyPSC0 PPC PSC - port 0
2714 153 = /dev/ttyPSC5 PPC PSC - port 5
2715 154 = /dev/ttyAT0 ATMEL serial port 0
2717 169 = /dev/ttyAT15 ATMEL serial port 15
2718 170 = /dev/ttyNX0 Hilscher netX serial port 0
2720 185 = /dev/ttyNX15 Hilscher netX serial port 15
2721 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
2722 187 = /dev/ttyUL0 Xilinx uartlite - port 0
2724 190 = /dev/ttyUL3 Xilinx uartlite - port 3
2725 191 = /dev/xvc0 Xen virtual console - port 0
2726 192 = /dev/ttyPZ0 pmac_zilog - port 0
2728 195 = /dev/ttyPZ3 pmac_zilog - port 3
2729 196 = /dev/ttyTX0 TX39/49 serial port 0
2731 204 = /dev/ttyTX7 TX39/49 serial port 7
2732 205 = /dev/ttySC0 SC26xx serial port 0
2733 206 = /dev/ttySC1 SC26xx serial port 1
2734 207 = /dev/ttySC2 SC26xx serial port 2
2735 208 = /dev/ttySC3 SC26xx serial port 3
2736 209 = /dev/ttyMAX0 MAX3100 serial port 0
2737 210 = /dev/ttyMAX1 MAX3100 serial port 1
2738 211 = /dev/ttyMAX2 MAX3100 serial port 2
2739 212 = /dev/ttyMAX3 MAX3100 serial port 3
2741 205 char Low-density serial ports (alternate device)
2742 0 = /dev/culu0 Callout device for ttyLU0
2743 1 = /dev/culu1 Callout device for ttyLU1
2744 2 = /dev/culu2 Callout device for ttyLU2
2745 3 = /dev/culu3 Callout device for ttyLU3
2746 4 = /dev/cufb0 Callout device for ttyFB0
2747 5 = /dev/cusa0 Callout device for ttySA0
2748 6 = /dev/cusa1 Callout device for ttySA1
2749 7 = /dev/cusa2 Callout device for ttySA2
2750 8 = /dev/cusc0 Callout device for ttySC0
2751 9 = /dev/cusc1 Callout device for ttySC1
2752 10 = /dev/cusc2 Callout device for ttySC2
2753 11 = /dev/cusc3 Callout device for ttySC3
2754 12 = /dev/cufw0 Callout device for ttyFW0
2755 13 = /dev/cufw1 Callout device for ttyFW1
2756 14 = /dev/cufw2 Callout device for ttyFW2
2757 15 = /dev/cufw3 Callout device for ttyFW3
2758 16 = /dev/cuam0 Callout device for ttyAM0
2760 31 = /dev/cuam15 Callout device for ttyAM15
2761 32 = /dev/cudb0 Callout device for ttyDB0
2763 39 = /dev/cudb7 Callout device for ttyDB7
2764 40 = /dev/cusg0 Callout device for ttySG0
2765 41 = /dev/ttycusmx0 Callout device for ttySMX0
2766 42 = /dev/ttycusmx1 Callout device for ttySMX1
2767 43 = /dev/ttycusmx2 Callout device for ttySMX2
2768 46 = /dev/cucpm0 Callout device for ttyCPM0
2770 49 = /dev/cucpm5 Callout device for ttyCPM5
2771 50 = /dev/cuioc40 Callout device for ttyIOC40
2773 81 = /dev/cuioc431 Callout device for ttyIOC431
2774 82 = /dev/cuvr0 Callout device for ttyVR0
2775 83 = /dev/cuvr1 Callout device for ttyVR1
2777 206 char OnStream SC-x0 tape devices
2778 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2779 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2781 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2782 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2784 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2785 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2787 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2788 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2790 128 = /dev/nosst0 No rewind version of /dev/osst0
2791 129 = /dev/nosst1 No rewind version of /dev/osst1
2793 160 = /dev/nosst0l No rewind version of /dev/osst0l
2794 161 = /dev/nosst1l No rewind version of /dev/osst1l
2796 192 = /dev/nosst0m No rewind version of /dev/osst0m
2797 193 = /dev/nosst1m No rewind version of /dev/osst1m
2799 224 = /dev/nosst0a No rewind version of /dev/osst0a
2800 225 = /dev/nosst1a No rewind version of /dev/osst1a
2803 The OnStream SC-x0 SCSI tapes do not support the
2804 standard SCSI SASD command set and therefore need
2805 their own driver "osst". Note that the IDE, USB (and
2806 maybe ParPort) versions may be driven via ide-scsi or
2807 usb-storage SCSI emulation and this osst device and
2808 driver as well. The ADR-x0 drives are QIC-157
2809 compliant and don't need osst.
2811 207 char Compaq ProLiant health feature indicate
2812 0 = /dev/cpqhealth/cpqw Redirector interface
2813 1 = /dev/cpqhealth/crom EISA CROM
2814 2 = /dev/cpqhealth/cdt Data Table
2815 3 = /dev/cpqhealth/cevt Event Log
2816 4 = /dev/cpqhealth/casr Automatic Server Recovery
2817 5 = /dev/cpqhealth/cecc ECC Memory
2818 6 = /dev/cpqhealth/cmca Machine Check Architecture
2819 7 = /dev/cpqhealth/ccsm Deprecated CDT
2820 8 = /dev/cpqhealth/cnmi NMI Handling
2821 9 = /dev/cpqhealth/css Sideshow Management
2822 10 = /dev/cpqhealth/cram CMOS interface
2823 11 = /dev/cpqhealth/cpci PCI IRQ interface
2825 208 char User space serial ports
2826 0 = /dev/ttyU0 First user space serial port
2827 1 = /dev/ttyU1 Second user space serial port
2830 209 char User space serial ports (alternate devices)
2831 0 = /dev/cuu0 Callout device for ttyU0
2832 1 = /dev/cuu1 Callout device for ttyU1
2835 210 char SBE, Inc. sync/async serial card
2836 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2837 1 = /dev/sbei/dld0 Download device for board 0
2838 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2839 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2840 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2841 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2842 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2843 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2844 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2845 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2846 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2847 11 = /dev/sbei/dld1 Download device for board 1
2848 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2849 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2850 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2851 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2852 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2853 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2854 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2855 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2858 Yes, each board is really spaced 10 (decimal) apart.
2860 211 char Addinum CPCI1500 digital I/O card
2861 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2862 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2865 212 char LinuxTV.org DVB driver subsystem
2866 0 = /dev/dvb/adapter0/video0 first video decoder of first card
2867 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card
2868 2 = /dev/dvb/adapter0/sec0 (obsolete/unused)
2869 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card
2870 4 = /dev/dvb/adapter0/demux0 first demux device of first card
2871 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card
2872 6 = /dev/dvb/adapter0/ca0 first common access port of first card
2873 7 = /dev/dvb/adapter0/net0 first network device of first card
2874 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card
2875 9 = /dev/dvb/adapter0/video1 second video decoder of first card
2877 64 = /dev/dvb/adapter1/video0 first video decoder of second card
2879 128 = /dev/dvb/adapter2/video0 first video decoder of third card
2881 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card
2883 216 char Bluetooth RFCOMM TTY devices
2884 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device
2885 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device
2888 217 char Bluetooth RFCOMM TTY devices (alternate devices)
2889 0 = /dev/curf0 Callout device for rfcomm0
2890 1 = /dev/curf1 Callout device for rfcomm1
2893 218 char The Logical Company bus Unibus/Qbus adapters
2894 0 = /dev/logicalco/bci/0 First bus adapter
2895 1 = /dev/logicalco/bci/1 First bus adapter
2898 219 char The Logical Company DCI-1300 digital I/O card
2899 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2900 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2903 220 char Myricom Myrinet "GM" board
2904 0 = /dev/myricom/gm0 First Myrinet GM board
2905 1 = /dev/myricom/gmp0 First board "root access"
2906 2 = /dev/myricom/gm1 Second Myrinet GM board
2907 3 = /dev/myricom/gmp1 Second board "root access"
2911 0 = /dev/bus/vme/m0 First master image
2912 1 = /dev/bus/vme/m1 Second master image
2913 2 = /dev/bus/vme/m2 Third master image
2914 3 = /dev/bus/vme/m3 Fourth master image
2915 4 = /dev/bus/vme/s0 First slave image
2916 5 = /dev/bus/vme/s1 Second slave image
2917 6 = /dev/bus/vme/s2 Third slave image
2918 7 = /dev/bus/vme/s3 Fourth slave image
2919 8 = /dev/bus/vme/ctl Control
2921 It is expected that all VME bus drivers will use the
2922 same interface. For interface documentation see
2923 http://www.vmelinux.org/.
2925 224 char A2232 serial card
2926 0 = /dev/ttyY0 First A2232 port
2927 1 = /dev/ttyY1 Second A2232 port
2930 225 char A2232 serial card (alternate devices)
2931 0 = /dev/cuy0 Callout device for ttyY0
2932 1 = /dev/cuy1 Callout device for ttyY1
2935 226 char Direct Rendering Infrastructure (DRI)
2936 0 = /dev/dri/card0 First graphics card
2937 1 = /dev/dri/card1 Second graphics card
2940 227 char IBM 3270 terminal Unix tty access
2941 1 = /dev/3270/tty1 First 3270 terminal
2942 2 = /dev/3270/tty2 Seconds 3270 terminal
2945 228 char IBM 3270 terminal block-mode access
2946 0 = /dev/3270/tub Controlling interface
2947 1 = /dev/3270/tub1 First 3270 terminal
2948 2 = /dev/3270/tub2 Second 3270 terminal
2951 229 char IBM iSeries/pSeries virtual console
2952 0 = /dev/hvc0 First console port
2953 1 = /dev/hvc1 Second console port
2956 230 char IBM iSeries virtual tape
2957 0 = /dev/iseries/vt0 First virtual tape, mode 0
2958 1 = /dev/iseries/vt1 Second virtual tape, mode 0
2960 32 = /dev/iseries/vt0l First virtual tape, mode 1
2961 33 = /dev/iseries/vt1l Second virtual tape, mode 1
2963 64 = /dev/iseries/vt0m First virtual tape, mode 2
2964 65 = /dev/iseries/vt1m Second virtual tape, mode 2
2966 96 = /dev/iseries/vt0a First virtual tape, mode 3
2967 97 = /dev/iseries/vt1a Second virtual tape, mode 3
2969 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind
2970 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind
2972 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind
2973 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind
2975 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind
2976 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind
2978 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind
2979 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind
2982 "No rewind" refers to the omission of the default
2983 automatic rewind on device close. The MTREW or MTOFFL
2984 ioctl()'s can be used to rewind the tape regardless of
2985 the device used to access it.
2988 0 = /dev/infiniband/umad0
2989 1 = /dev/infiniband/umad1
2991 63 = /dev/infiniband/umad63 63rd InfiniBandMad device
2992 64 = /dev/infiniband/issm0 First InfiniBand IsSM device
2993 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device
2995 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device
2996 192 = /dev/infiniband/uverbs0 First InfiniBand verbs device
2997 193 = /dev/infiniband/uverbs1 Second InfiniBand verbs device
2999 223 = /dev/infiniband/uverbs31 31st InfiniBand verbs device
3001 232 char Biometric Devices
3002 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device
3003 1 = /dev/biometric/sensor0/iris first iris sensor on first device
3004 2 = /dev/biometric/sensor0/retina first retina sensor on first device
3005 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device
3006 4 = /dev/biometric/sensor0/facial first facial sensor on first device
3007 5 = /dev/biometric/sensor0/hand first hand sensor on first device
3009 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device
3011 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device
3014 233 char PathScale InfiniPath interconnect
3015 0 = /dev/ipath Primary device for programs (any unit)
3016 1 = /dev/ipath0 Access specifically to unit 0
3017 2 = /dev/ipath1 Access specifically to unit 1
3019 4 = /dev/ipath3 Access specifically to unit 3
3020 129 = /dev/ipath_sma Device used by Subnet Management Agent
3021 130 = /dev/ipath_diag Device used by diagnostics programs
3023 234-254 char RESERVED FOR DYNAMIC ASSIGNMENT
3024 Character devices that request a dynamic allocation of major number will
3025 take numbers starting from 254 and downward.
3027 240-254 block LOCAL/EXPERIMENTAL USE
3028 Allocated for local/experimental use. For devices not
3029 assigned official numbers, these ranges should be
3030 used in order to avoid conflicting with future assignments.
3036 This major is reserved to assist the expansion to a
3037 larger number space. No device nodes with this major
3038 should ever be created on the filesystem.
3039 (This is probably not true anymore, but I'll leave it
3042 ---LARGE MAJORS!!!!!---
3044 256 char Equinox SST multi-port serial boards
3045 0 = /dev/ttyEQ0 First serial port on first Equinox SST board
3046 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board
3047 128 = /dev/ttyEQ128 First serial port on second Equinox SST board
3049 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board
3051 256 block Resident Flash Disk Flash Translation Layer
3052 0 = /dev/rfda First RFD FTL layer
3053 16 = /dev/rfdb Second RFD FTL layer
3055 240 = /dev/rfdp 16th RFD FTL layer
3057 257 char Phoenix Technologies Cryptographic Services Driver
3058 0 = /dev/ptlsec Crypto Services Driver
3060 257 block SSFDC Flash Translation Layer filesystem
3061 0 = /dev/ssfdca First SSFDC layer
3062 8 = /dev/ssfdcb Second SSFDC layer
3063 16 = /dev/ssfdcc Third SSFDC layer
3064 24 = /dev/ssfdcd 4th SSFDC layer
3065 32 = /dev/ssfdce 5th SSFDC layer
3066 40 = /dev/ssfdcf 6th SSFDC layer
3067 48 = /dev/ssfdcg 7th SSFDC layer
3068 56 = /dev/ssfdch 8th SSFDC layer
3070 258 block ROM/Flash read-only translation layer
3071 0 = /dev/blockrom0 First ROM card's translation layer interface
3072 1 = /dev/blockrom1 Second ROM card's translation layer interface
3075 259 block Block Extended Major
3076 Used dynamically to hold additional partition minor
3077 numbers and allow large numbers of partitions per device
3079 259 char FPGA configuration interfaces
3080 0 = /dev/icap0 First Xilinx internal configuration
3081 1 = /dev/icap1 Second Xilinx internal configuration
3083 260 char OSD (Object-based-device) SCSI Device
3084 0 = /dev/osd0 First OSD Device
3085 1 = /dev/osd1 Second OSD Device
3087 255 = /dev/osd255 256th OSD Device
3089 384-511 char RESERVED FOR DYNAMIC ASSIGNMENT
3090 Character devices that request a dynamic allocation of major
3091 number will take numbers starting from 511 and downward,
3092 once the 234-254 range is full.
projects / linux-2.6-microblaze.git / blob