1 2 LINUX ALLOCATED DEVICES (2.6+ version) 3 4 Maintained by Alan Cox <device@lanana.org> 5 6 Last revised: 6th April 2009 7 8This list is the Linux Device List, the official registry of allocated 9device numbers and /dev directory nodes for the Linux operating 10system. 11 12The latest version of this list is available from 13http://www.lanana.org/docs/device-list/ or 14ftp://ftp.kernel.org/pub/linux/docs/device-list/. This version may be 15newer than the one distributed with the Linux kernel. 16 17The LaTeX version of this document is no longer maintained. 18 19This document is included by reference into the Filesystem Hierarchy 20Standard (FHS). The FHS is available from http://www.pathname.com/fhs/. 21 22Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga 23platform only. Allocations marked (68k/Atari) apply to Linux/68k on 24the Atari platform only. 25 26The symbol {2.6} means the allocation is obsolete and scheduled for 27removal once kernel version 2.6 (or equivalent) is released. Some of these 28allocations have already been removed. 29 30This document is in the public domain. The author requests, however, 31that semantically altered versions are not distributed without 32permission of the author, assuming the author can be contacted without 33an unreasonable effort. 34 35In particular, please don't sent patches for this list to Linus, at 36least not without contacting me first. 37 38I do not have any information about these devices beyond what appears 39on this list. Any such information requests will be deleted without 40reply. 41 42 43 **** DEVICE DRIVERS AUTHORS PLEASE READ THIS **** 44 45To have a major number allocated, or a minor number in situations 46where that applies (e.g. busmice), please contact me with the 47appropriate device information. Also, if you have additional 48information regarding any of the devices listed below, or if I have 49made a mistake, I would greatly appreciate a note. 50 51I do, however, make a few requests about the nature of your report. 52This is necessary for me to be able to keep this list up to date and 53correct in a timely manner. First of all, *please* send it to the 54correct address... <device@lanana.org>. I receive hundreds of email 55messages a day, so mail sent to other addresses may very well get lost 56in the avalanche. Please put in a descriptive subject, so I can find 57your mail again should I need to. Too many people send me email 58saying just "device number request" in the subject. 59 60Second, please include a description of the device *in the same format 61as this list*. The reason for this is that it is the only way I have 62found to ensure I have all the requisite information to publish your 63device and avoid conflicts. 64 65Third, please don't assume that the distributed version of the list is 66up to date. Due to the number of registrations I have to maintain it 67in "batch mode", so there is likely additional registrations that 68haven't been listed yet. 69 70Fourth, remember that Linux now has extensive support for dynamic allocation 71of device numbering and can use sysfs and udev to handle the naming needs. 72There are still some exceptions in the serial and boot device area. Before 73asking for a device number make sure you actually need one. 74 75Finally, sometimes I have to play "namespace police." Please don't be 76offended. I often get submissions for /dev names that would be bound 77to cause conflicts down the road. I am trying to avoid getting in a 78situation where we would have to suffer an incompatible forward 79change. Therefore, please consult with me *before* you make your 80device names and numbers in any way public, at least to the point 81where it would be at all difficult to get them changed. 82 83Your cooperation is appreciated. 84 85 86 0 Unnamed devices (e.g. non-device mounts) 87 0 = reserved as null device number 88 See block major 144, 145, 146 for expansion areas. 89 90 1 char Memory devices 91 1 = /dev/mem Physical memory access 92 2 = /dev/kmem Kernel virtual memory access 93 3 = /dev/null Null device 94 4 = /dev/port I/O port access 95 5 = /dev/zero Null byte source 96 6 = /dev/core OBSOLETE - replaced by /proc/kcore 97 7 = /dev/full Returns ENOSPC on write 98 8 = /dev/random Nondeterministic random number gen. 99 9 = /dev/urandom Faster, less secure random number gen. 100 10 = /dev/aio Asynchronous I/O notification interface 101 11 = /dev/kmsg Writes to this come out as printk's, reads 102 export the buffered printk records. 103 12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore 104 105 1 block RAM disk 106 0 = /dev/ram0 First RAM disk 107 1 = /dev/ram1 Second RAM disk 108 ... 109 250 = /dev/initrd Initial RAM disk 110 111 Older kernels had /dev/ramdisk (1, 1) here. 112 /dev/initrd refers to a RAM disk which was preloaded 113 by the boot loader; newer kernels use /dev/ram0 for 114 the initrd. 115 116 2 char Pseudo-TTY masters 117 0 = /dev/ptyp0 First PTY master 118 1 = /dev/ptyp1 Second PTY master 119 ... 120 255 = /dev/ptyef 256th PTY master 121 122 Pseudo-tty's are named as follows: 123 * Masters are "pty", slaves are "tty"; 124 * the fourth letter is one of pqrstuvwxyzabcde indicating 125 the 1st through 16th series of 16 pseudo-ttys each, and 126 * the fifth letter is one of 0123456789abcdef indicating 127 the position within the series. 128 129 These are the old-style (BSD) PTY devices; Unix98 130 devices are on major 128 and above and use the PTY 131 master multiplex (/dev/ptmx) to acquire a PTY on 132 demand. 133 134 2 block Floppy disks 135 0 = /dev/fd0 Controller 0, drive 0, autodetect 136 1 = /dev/fd1 Controller 0, drive 1, autodetect 137 2 = /dev/fd2 Controller 0, drive 2, autodetect 138 3 = /dev/fd3 Controller 0, drive 3, autodetect 139 128 = /dev/fd4 Controller 1, drive 0, autodetect 140 129 = /dev/fd5 Controller 1, drive 1, autodetect 141 130 = /dev/fd6 Controller 1, drive 2, autodetect 142 131 = /dev/fd7 Controller 1, drive 3, autodetect 143 144 To specify format, add to the autodetect device number: 145 0 = /dev/fd? Autodetect format 146 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1) 147 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1) 148 48 = /dev/fd?h410 5.25" 410K in a 1200K drive 149 64 = /dev/fd?h420 5.25" 420K in a 1200K drive 150 24 = /dev/fd?h720 5.25" 720K in a 1200K drive 151 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1) 152 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1) 153 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1) 154 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive 155 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive 156 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1) 157 158 12 = /dev/fd?u360 3.5" 360K Double Density(2) 159 16 = /dev/fd?u720 3.5" 720K Double Density(1) 160 120 = /dev/fd?u800 3.5" 800K Double Density(2) 161 52 = /dev/fd?u820 3.5" 820K Double Density 162 68 = /dev/fd?u830 3.5" 830K Double Density 163 84 = /dev/fd?u1040 3.5" 1040K Double Density(1) 164 88 = /dev/fd?u1120 3.5" 1120K Double Density(1) 165 28 = /dev/fd?u1440 3.5" 1440K High Density(1) 166 124 = /dev/fd?u1600 3.5" 1600K High Density(1) 167 44 = /dev/fd?u1680 3.5" 1680K High Density(3) 168 60 = /dev/fd?u1722 3.5" 1722K High Density 169 76 = /dev/fd?u1743 3.5" 1743K High Density 170 96 = /dev/fd?u1760 3.5" 1760K High Density 171 116 = /dev/fd?u1840 3.5" 1840K High Density(3) 172 100 = /dev/fd?u1920 3.5" 1920K High Density(1) 173 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1) 174 104 = /dev/fd?u3200 3.5" 3200K Extra Density 175 108 = /dev/fd?u3520 3.5" 3520K Extra Density 176 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1) 177 178 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete? 179 180 (1) Autodetectable format 181 (2) Autodetectable format in a Double Density (720K) drive only 182 (3) Autodetectable format in a High Density (1440K) drive only 183 184 NOTE: The letter in the device name (d, q, h or u) 185 signifies the type of drive: 5.25" Double Density (d), 186 5.25" Quad Density (q), 5.25" High Density (h) or 3.5" 187 (any model, u). The use of the capital letters D, H 188 and E for the 3.5" models have been deprecated, since 189 the drive type is insignificant for these devices. 190 191 3 char Pseudo-TTY slaves 192 0 = /dev/ttyp0 First PTY slave 193 1 = /dev/ttyp1 Second PTY slave 194 ... 195 255 = /dev/ttyef 256th PTY slave 196 197 These are the old-style (BSD) PTY devices; Unix98 198 devices are on major 136 and above. 199 200 3 block First MFM, RLL and IDE hard disk/CD-ROM interface 201 0 = /dev/hda Master: whole disk (or CD-ROM) 202 64 = /dev/hdb Slave: whole disk (or CD-ROM) 203 204 For partitions, add to the whole disk device number: 205 0 = /dev/hd? Whole disk 206 1 = /dev/hd?1 First partition 207 2 = /dev/hd?2 Second partition 208 ... 209 63 = /dev/hd?63 63rd partition 210 211 For Linux/i386, partitions 1-4 are the primary 212 partitions, and 5 and above are logical partitions. 213 Other versions of Linux use partitioning schemes 214 appropriate to their respective architectures. 215 216 4 char TTY devices 217 0 = /dev/tty0 Current virtual console 218 219 1 = /dev/tty1 First virtual console 220 ... 221 63 = /dev/tty63 63rd virtual console 222 64 = /dev/ttyS0 First UART serial port 223 ... 224 255 = /dev/ttyS191 192nd UART serial port 225 226 UART serial ports refer to 8250/16450/16550 series devices. 227 228 Older versions of the Linux kernel used this major 229 number for BSD PTY devices. As of Linux 2.1.115, this 230 is no longer supported. Use major numbers 2 and 3. 231 232 4 block Aliases for dynamically allocated major devices to be used 233 when its not possible to create the real device nodes 234 because the root filesystem is mounted read-only. 235 236 0 = /dev/root 237 238 5 char Alternate TTY devices 239 0 = /dev/tty Current TTY device 240 1 = /dev/console System console 241 2 = /dev/ptmx PTY master multiplex 242 3 = /dev/ttyprintk User messages via printk TTY device 243 64 = /dev/cua0 Callout device for ttyS0 244 ... 245 255 = /dev/cua191 Callout device for ttyS191 246 247 (5,1) is /dev/console starting with Linux 2.1.71. See 248 the section on terminal devices for more information 249 on /dev/console. 250 251 6 char Parallel printer devices 252 0 = /dev/lp0 Parallel printer on parport0 253 1 = /dev/lp1 Parallel printer on parport1 254 ... 255 256 Current Linux kernels no longer have a fixed mapping 257 between parallel ports and I/O addresses. Instead, 258 they are redirected through the parport multiplex layer. 259 260 7 char Virtual console capture devices 261 0 = /dev/vcs Current vc text contents 262 1 = /dev/vcs1 tty1 text contents 263 ... 264 63 = /dev/vcs63 tty63 text contents 265 128 = /dev/vcsa Current vc text/attribute contents 266 129 = /dev/vcsa1 tty1 text/attribute contents 267 ... 268 191 = /dev/vcsa63 tty63 text/attribute contents 269 270 NOTE: These devices permit both read and write access. 271 272 7 block Loopback devices 273 0 = /dev/loop0 First loop device 274 1 = /dev/loop1 Second loop device 275 ... 276 277 The loop devices are used to mount filesystems not 278 associated with block devices. The binding to the 279 loop devices is handled by mount(8) or losetup(8). 280 281 8 block SCSI disk devices (0-15) 282 0 = /dev/sda First SCSI disk whole disk 283 16 = /dev/sdb Second SCSI disk whole disk 284 32 = /dev/sdc Third SCSI disk whole disk 285 ... 286 240 = /dev/sdp Sixteenth SCSI disk whole disk 287 288 Partitions are handled in the same way as for IDE 289 disks (see major number 3) except that the limit on 290 partitions is 15. 291 292 9 char SCSI tape devices 293 0 = /dev/st0 First SCSI tape, mode 0 294 1 = /dev/st1 Second SCSI tape, mode 0 295 ... 296 32 = /dev/st0l First SCSI tape, mode 1 297 33 = /dev/st1l Second SCSI tape, mode 1 298 ... 299 64 = /dev/st0m First SCSI tape, mode 2 300 65 = /dev/st1m Second SCSI tape, mode 2 301 ... 302 96 = /dev/st0a First SCSI tape, mode 3 303 97 = /dev/st1a Second SCSI tape, mode 3 304 ... 305 128 = /dev/nst0 First SCSI tape, mode 0, no rewind 306 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind 307 ... 308 160 = /dev/nst0l First SCSI tape, mode 1, no rewind 309 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind 310 ... 311 192 = /dev/nst0m First SCSI tape, mode 2, no rewind 312 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind 313 ... 314 224 = /dev/nst0a First SCSI tape, mode 3, no rewind 315 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind 316 ... 317 318 "No rewind" refers to the omission of the default 319 automatic rewind on device close. The MTREW or MTOFFL 320 ioctl()'s can be used to rewind the tape regardless of 321 the device used to access it. 322 323 9 block Metadisk (RAID) devices 324 0 = /dev/md0 First metadisk group 325 1 = /dev/md1 Second metadisk group 326 ... 327 328 The metadisk driver is used to span a 329 filesystem across multiple physical disks. 330 331 10 char Non-serial mice, misc features 332 0 = /dev/logibm Logitech bus mouse 333 1 = /dev/psaux PS/2-style mouse port 334 2 = /dev/inportbm Microsoft Inport bus mouse 335 3 = /dev/atibm ATI XL bus mouse 336 4 = /dev/jbm J-mouse 337 4 = /dev/amigamouse Amiga mouse (68k/Amiga) 338 5 = /dev/atarimouse Atari mouse 339 6 = /dev/sunmouse Sun mouse 340 7 = /dev/amigamouse1 Second Amiga mouse 341 8 = /dev/smouse Simple serial mouse driver 342 9 = /dev/pc110pad IBM PC-110 digitizer pad 343 10 = /dev/adbmouse Apple Desktop Bus mouse 344 11 = /dev/vrtpanel Vr41xx embedded touch panel 345 13 = /dev/vpcmouse Connectix Virtual PC Mouse 346 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen 347 15 = /dev/touchscreen/mk712 MK712 touchscreen 348 128 = /dev/beep Fancy beep device 349 129 = 350 130 = /dev/watchdog Watchdog timer port 351 131 = /dev/temperature Machine internal temperature 352 132 = /dev/hwtrap Hardware fault trap 353 133 = /dev/exttrp External device trap 354 134 = /dev/apm_bios Advanced Power Management BIOS 355 135 = /dev/rtc Real Time Clock 356 139 = /dev/openprom SPARC OpenBoot PROM 357 140 = /dev/relay8 Berkshire Products Octal relay card 358 141 = /dev/relay16 Berkshire Products ISO-16 relay card 359 142 = 360 143 = /dev/pciconf PCI configuration space 361 144 = /dev/nvram Non-volatile configuration RAM 362 145 = /dev/hfmodem Soundcard shortwave modem control 363 146 = /dev/graphics Linux/SGI graphics device 364 147 = /dev/opengl Linux/SGI OpenGL pipe 365 148 = /dev/gfx Linux/SGI graphics effects device 366 149 = /dev/input/mouse Linux/SGI Irix emulation mouse 367 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard 368 151 = /dev/led Front panel LEDs 369 152 = /dev/kpoll Kernel Poll Driver 370 153 = /dev/mergemem Memory merge device 371 154 = /dev/pmu Macintosh PowerBook power manager 372 155 = /dev/isictl MultiTech ISICom serial control 373 156 = /dev/lcd Front panel LCD display 374 157 = /dev/ac Applicom Intl Profibus card 375 158 = /dev/nwbutton Netwinder external button 376 159 = /dev/nwdebug Netwinder debug interface 377 160 = /dev/nwflash Netwinder flash memory 378 161 = /dev/userdma User-space DMA access 379 162 = /dev/smbus System Management Bus 380 163 = /dev/lik Logitech Internet Keyboard 381 164 = /dev/ipmo Intel Intelligent Platform Management 382 165 = /dev/vmmon VMware virtual machine monitor 383 166 = /dev/i2o/ctl I2O configuration manager 384 167 = /dev/specialix_sxctl Specialix serial control 385 168 = /dev/tcldrv Technology Concepts serial control 386 169 = /dev/specialix_rioctl Specialix RIO serial control 387 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices 388 171 = /dev/srripc QNX4 API IPC manager 389 172 = /dev/usemaclone Semaphore clone device 390 173 = /dev/ipmikcs Intelligent Platform Management 391 174 = /dev/uctrl SPARCbook 3 microcontroller 392 175 = /dev/agpgart AGP Graphics Address Remapping Table 393 176 = /dev/gtrsc Gorgy Timing radio clock 394 177 = /dev/cbm Serial CBM bus 395 178 = /dev/jsflash JavaStation OS flash SIMM 396 179 = /dev/xsvc High-speed shared-mem/semaphore service 397 180 = /dev/vrbuttons Vr41xx button input device 398 181 = /dev/toshiba Toshiba laptop SMM support 399 182 = /dev/perfctr Performance-monitoring counters 400 183 = /dev/hwrng Generic random number generator 401 184 = /dev/cpu/microcode CPU microcode update interface 402 186 = /dev/atomicps Atomic shapshot of process state data 403 187 = /dev/irnet IrNET device 404 188 = /dev/smbusbios SMBus BIOS 405 189 = /dev/ussp_ctl User space serial port control 406 190 = /dev/crash Mission Critical Linux crash dump facility 407 191 = /dev/pcl181 <information missing> 408 192 = /dev/nas_xbus NAS xbus LCD/buttons access 409 193 = /dev/d7s SPARC 7-segment display 410 194 = /dev/zkshim Zero-Knowledge network shim control 411 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201 412 198 = /dev/sexec Signed executable interface 413 199 = /dev/scanners/cuecat :CueCat barcode scanner 414 200 = /dev/net/tun TAP/TUN network device 415 201 = /dev/button/gulpb Transmeta GULP-B buttons 416 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control 417 204 = /dev/video/em8300 EM8300 DVD decoder control 418 205 = /dev/video/em8300_mv EM8300 DVD decoder video 419 206 = /dev/video/em8300_ma EM8300 DVD decoder audio 420 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture 421 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller 422 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver 423 210 = /dev/impi/bt IMPI coprocessor block transfer 424 211 = /dev/impi/smic IMPI coprocessor stream interface 425 212 = /dev/watchdogs/0 First watchdog device 426 213 = /dev/watchdogs/1 Second watchdog device 427 214 = /dev/watchdogs/2 Third watchdog device 428 215 = /dev/watchdogs/3 Fourth watchdog device 429 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel 430 217 = /dev/ni/natmotn National Instruments Motion 431 218 = /dev/kchuid Inter-process chuid control 432 219 = /dev/modems/mwave MWave modem firmware upload 433 220 = /dev/mptctl Message passing technology (MPT) control 434 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver 435 222 = /dev/mvista/hasi Montavista PICMG high availability 436 223 = /dev/input/uinput User level driver support for input 437 224 = /dev/tpm TCPA TPM driver 438 225 = /dev/pps Pulse Per Second driver 439 226 = /dev/systrace Systrace device 440 227 = /dev/mcelog X86_64 Machine Check Exception driver 441 228 = /dev/hpet HPET driver 442 229 = /dev/fuse Fuse (virtual filesystem in user-space) 443 230 = /dev/midishare MidiShare driver 444 231 = /dev/snapshot System memory snapshot device 445 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions) 446 233 = /dev/kmview View-OS A process with a view 447 234 = /dev/btrfs-control Btrfs control device 448 235 = /dev/autofs Autofs control device 449 236 = /dev/mapper/control Device-Mapper control device 450 237 = /dev/loop-control Loopback control device 451 238 = /dev/vhost-net Host kernel accelerator for virtio net 452 453 240-254 Reserved for local use 454 255 Reserved for MISC_DYNAMIC_MINOR 455 456 11 char Raw keyboard device (Linux/SPARC only) 457 0 = /dev/kbd Raw keyboard device 458 459 11 char Serial Mux device (Linux/PA-RISC only) 460 0 = /dev/ttyB0 First mux port 461 1 = /dev/ttyB1 Second mux port 462 ... 463 464 11 block SCSI CD-ROM devices 465 0 = /dev/scd0 First SCSI CD-ROM 466 1 = /dev/scd1 Second SCSI CD-ROM 467 ... 468 469 The prefix /dev/sr (instead of /dev/scd) has been deprecated. 470 471 12 char QIC-02 tape 472 2 = /dev/ntpqic11 QIC-11, no rewind-on-close 473 3 = /dev/tpqic11 QIC-11, rewind-on-close 474 4 = /dev/ntpqic24 QIC-24, no rewind-on-close 475 5 = /dev/tpqic24 QIC-24, rewind-on-close 476 6 = /dev/ntpqic120 QIC-120, no rewind-on-close 477 7 = /dev/tpqic120 QIC-120, rewind-on-close 478 8 = /dev/ntpqic150 QIC-150, no rewind-on-close 479 9 = /dev/tpqic150 QIC-150, rewind-on-close 480 481 The device names specified are proposed -- if there 482 are "standard" names for these devices, please let me know. 483 484 12 block 485 486 13 char Input core 487 0 = /dev/input/js0 First joystick 488 1 = /dev/input/js1 Second joystick 489 ... 490 32 = /dev/input/mouse0 First mouse 491 33 = /dev/input/mouse1 Second mouse 492 ... 493 63 = /dev/input/mice Unified mouse 494 64 = /dev/input/event0 First event queue 495 65 = /dev/input/event1 Second event queue 496 ... 497 498 Each device type has 5 bits (32 minors). 499 500 13 block Previously used for the XT disk (/dev/xdN) 501 Deleted in kernel v3.9. 502 503 14 char Open Sound System (OSS) 504 0 = /dev/mixer Mixer control 505 1 = /dev/sequencer Audio sequencer 506 2 = /dev/midi00 First MIDI port 507 3 = /dev/dsp Digital audio 508 4 = /dev/audio Sun-compatible digital audio 509 6 = 510 7 = /dev/audioctl SPARC audio control device 511 8 = /dev/sequencer2 Sequencer -- alternate device 512 16 = /dev/mixer1 Second soundcard mixer control 513 17 = /dev/patmgr0 Sequencer patch manager 514 18 = /dev/midi01 Second MIDI port 515 19 = /dev/dsp1 Second soundcard digital audio 516 20 = /dev/audio1 Second soundcard Sun digital audio 517 33 = /dev/patmgr1 Sequencer patch manager 518 34 = /dev/midi02 Third MIDI port 519 50 = /dev/midi03 Fourth MIDI port 520 521 14 block 522 523 15 char Joystick 524 0 = /dev/js0 First analog joystick 525 1 = /dev/js1 Second analog joystick 526 ... 527 128 = /dev/djs0 First digital joystick 528 129 = /dev/djs1 Second digital joystick 529 ... 530 15 block Sony CDU-31A/CDU-33A CD-ROM 531 0 = /dev/sonycd Sony CDU-31a CD-ROM 532 533 16 char Non-SCSI scanners 534 0 = /dev/gs4500 Genius 4500 handheld scanner 535 536 16 block GoldStar CD-ROM 537 0 = /dev/gscd GoldStar CD-ROM 538 539 17 char OBSOLETE (was Chase serial card) 540 0 = /dev/ttyH0 First Chase port 541 1 = /dev/ttyH1 Second Chase port 542 ... 543 17 block Optics Storage CD-ROM 544 0 = /dev/optcd Optics Storage CD-ROM 545 546 18 char OBSOLETE (was Chase serial card - alternate devices) 547 0 = /dev/cuh0 Callout device for ttyH0 548 1 = /dev/cuh1 Callout device for ttyH1 549 ... 550 18 block Sanyo CD-ROM 551 0 = /dev/sjcd Sanyo CD-ROM 552 553 19 char Cyclades serial card 554 0 = /dev/ttyC0 First Cyclades port 555 ... 556 31 = /dev/ttyC31 32nd Cyclades port 557 558 19 block "Double" compressed disk 559 0 = /dev/double0 First compressed disk 560 ... 561 7 = /dev/double7 Eighth compressed disk 562 128 = /dev/cdouble0 Mirror of first compressed disk 563 ... 564 135 = /dev/cdouble7 Mirror of eighth compressed disk 565 566 See the Double documentation for the meaning of the 567 mirror devices. 568 569 20 char Cyclades serial card - alternate devices 570 0 = /dev/cub0 Callout device for ttyC0 571 ... 572 31 = /dev/cub31 Callout device for ttyC31 573 574 20 block Hitachi CD-ROM (under development) 575 0 = /dev/hitcd Hitachi CD-ROM 576 577 21 char Generic SCSI access 578 0 = /dev/sg0 First generic SCSI device 579 1 = /dev/sg1 Second generic SCSI device 580 ... 581 582 Most distributions name these /dev/sga, /dev/sgb...; 583 this sets an unnecessary limit of 26 SCSI devices in 584 the system and is counter to standard Linux 585 device-naming practice. 586 587 21 block Acorn MFM hard drive interface 588 0 = /dev/mfma First MFM drive whole disk 589 64 = /dev/mfmb Second MFM drive whole disk 590 591 This device is used on the ARM-based Acorn RiscPC. 592 Partitions are handled the same way as for IDE disks 593 (see major number 3). 594 595 22 char Digiboard serial card 596 0 = /dev/ttyD0 First Digiboard port 597 1 = /dev/ttyD1 Second Digiboard port 598 ... 599 22 block Second IDE hard disk/CD-ROM interface 600 0 = /dev/hdc Master: whole disk (or CD-ROM) 601 64 = /dev/hdd Slave: whole disk (or CD-ROM) 602 603 Partitions are handled the same way as for the first 604 interface (see major number 3). 605 606 23 char Digiboard serial card - alternate devices 607 0 = /dev/cud0 Callout device for ttyD0 608 1 = /dev/cud1 Callout device for ttyD1 609 ... 610 23 block Mitsumi proprietary CD-ROM 611 0 = /dev/mcd Mitsumi CD-ROM 612 613 24 char Stallion serial card 614 0 = /dev/ttyE0 Stallion port 0 card 0 615 1 = /dev/ttyE1 Stallion port 1 card 0 616 ... 617 64 = /dev/ttyE64 Stallion port 0 card 1 618 65 = /dev/ttyE65 Stallion port 1 card 1 619 ... 620 128 = /dev/ttyE128 Stallion port 0 card 2 621 129 = /dev/ttyE129 Stallion port 1 card 2 622 ... 623 192 = /dev/ttyE192 Stallion port 0 card 3 624 193 = /dev/ttyE193 Stallion port 1 card 3 625 ... 626 24 block Sony CDU-535 CD-ROM 627 0 = /dev/cdu535 Sony CDU-535 CD-ROM 628 629 25 char Stallion serial card - alternate devices 630 0 = /dev/cue0 Callout device for ttyE0 631 1 = /dev/cue1 Callout device for ttyE1 632 ... 633 64 = /dev/cue64 Callout device for ttyE64 634 65 = /dev/cue65 Callout device for ttyE65 635 ... 636 128 = /dev/cue128 Callout device for ttyE128 637 129 = /dev/cue129 Callout device for ttyE129 638 ... 639 192 = /dev/cue192 Callout device for ttyE192 640 193 = /dev/cue193 Callout device for ttyE193 641 ... 642 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM 643 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0 644 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1 645 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2 646 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3 647 648 26 char 649 650 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM 651 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0 652 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1 653 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2 654 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3 655 656 27 char QIC-117 tape 657 0 = /dev/qft0 Unit 0, rewind-on-close 658 1 = /dev/qft1 Unit 1, rewind-on-close 659 2 = /dev/qft2 Unit 2, rewind-on-close 660 3 = /dev/qft3 Unit 3, rewind-on-close 661 4 = /dev/nqft0 Unit 0, no rewind-on-close 662 5 = /dev/nqft1 Unit 1, no rewind-on-close 663 6 = /dev/nqft2 Unit 2, no rewind-on-close 664 7 = /dev/nqft3 Unit 3, no rewind-on-close 665 16 = /dev/zqft0 Unit 0, rewind-on-close, compression 666 17 = /dev/zqft1 Unit 1, rewind-on-close, compression 667 18 = /dev/zqft2 Unit 2, rewind-on-close, compression 668 19 = /dev/zqft3 Unit 3, rewind-on-close, compression 669 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression 670 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression 671 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression 672 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression 673 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks 674 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks 675 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks 676 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks 677 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks 678 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks 679 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks 680 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks 681 682 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM 683 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0 684 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1 685 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2 686 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3 687 688 28 char Stallion serial card - card programming 689 0 = /dev/staliomem0 First Stallion card I/O memory 690 1 = /dev/staliomem1 Second Stallion card I/O memory 691 2 = /dev/staliomem2 Third Stallion card I/O memory 692 3 = /dev/staliomem3 Fourth Stallion card I/O memory 693 694 28 char Atari SLM ACSI laser printer (68k/Atari) 695 0 = /dev/slm0 First SLM laser printer 696 1 = /dev/slm1 Second SLM laser printer 697 ... 698 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM 699 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0 700 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1 701 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2 702 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3 703 704 28 block ACSI disk (68k/Atari) 705 0 = /dev/ada First ACSI disk whole disk 706 16 = /dev/adb Second ACSI disk whole disk 707 32 = /dev/adc Third ACSI disk whole disk 708 ... 709 240 = /dev/adp 16th ACSI disk whole disk 710 711 Partitions are handled in the same way as for IDE 712 disks (see major number 3) except that the limit on 713 partitions is 15, like SCSI. 714 715 29 char Universal frame buffer 716 0 = /dev/fb0 First frame buffer 717 1 = /dev/fb1 Second frame buffer 718 ... 719 31 = /dev/fb31 32nd frame buffer 720 721 29 block Aztech/Orchid/Okano/Wearnes CD-ROM 722 0 = /dev/aztcd Aztech CD-ROM 723 724 30 char iBCS-2 compatibility devices 725 0 = /dev/socksys Socket access 726 1 = /dev/spx SVR3 local X interface 727 32 = /dev/inet/ip Network access 728 33 = /dev/inet/icmp 729 34 = /dev/inet/ggp 730 35 = /dev/inet/ipip 731 36 = /dev/inet/tcp 732 37 = /dev/inet/egp 733 38 = /dev/inet/pup 734 39 = /dev/inet/udp 735 40 = /dev/inet/idp 736 41 = /dev/inet/rawip 737 738 Additionally, iBCS-2 requires the following links: 739 740 /dev/ip -> /dev/inet/ip 741 /dev/icmp -> /dev/inet/icmp 742 /dev/ggp -> /dev/inet/ggp 743 /dev/ipip -> /dev/inet/ipip 744 /dev/tcp -> /dev/inet/tcp 745 /dev/egp -> /dev/inet/egp 746 /dev/pup -> /dev/inet/pup 747 /dev/udp -> /dev/inet/udp 748 /dev/idp -> /dev/inet/idp 749 /dev/rawip -> /dev/inet/rawip 750 /dev/inet/arp -> /dev/inet/udp 751 /dev/inet/rip -> /dev/inet/udp 752 /dev/nfsd -> /dev/socksys 753 /dev/X0R -> /dev/null (? apparently not required ?) 754 755 30 block Philips LMS CM-205 CD-ROM 756 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM 757 758 /dev/lmscd is an older name for this device. This 759 driver does not work with the CM-205MS CD-ROM. 760 761 31 char MPU-401 MIDI 762 0 = /dev/mpu401data MPU-401 data port 763 1 = /dev/mpu401stat MPU-401 status port 764 765 31 block ROM/flash memory card 766 0 = /dev/rom0 First ROM card (rw) 767 ... 768 7 = /dev/rom7 Eighth ROM card (rw) 769 8 = /dev/rrom0 First ROM card (ro) 770 ... 771 15 = /dev/rrom7 Eighth ROM card (ro) 772 16 = /dev/flash0 First flash memory card (rw) 773 ... 774 23 = /dev/flash7 Eighth flash memory card (rw) 775 24 = /dev/rflash0 First flash memory card (ro) 776 ... 777 31 = /dev/rflash7 Eighth flash memory card (ro) 778 779 The read-write (rw) devices support back-caching 780 written data in RAM, as well as writing to flash RAM 781 devices. The read-only devices (ro) support reading 782 only. 783 784 32 char Specialix serial card 785 0 = /dev/ttyX0 First Specialix port 786 1 = /dev/ttyX1 Second Specialix port 787 ... 788 32 block Philips LMS CM-206 CD-ROM 789 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM 790 791 33 char Specialix serial card - alternate devices 792 0 = /dev/cux0 Callout device for ttyX0 793 1 = /dev/cux1 Callout device for ttyX1 794 ... 795 33 block Third IDE hard disk/CD-ROM interface 796 0 = /dev/hde Master: whole disk (or CD-ROM) 797 64 = /dev/hdf Slave: whole disk (or CD-ROM) 798 799 Partitions are handled the same way as for the first 800 interface (see major number 3). 801 802 34 char Z8530 HDLC driver 803 0 = /dev/scc0 First Z8530, first port 804 1 = /dev/scc1 First Z8530, second port 805 2 = /dev/scc2 Second Z8530, first port 806 3 = /dev/scc3 Second Z8530, second port 807 ... 808 809 In a previous version these devices were named 810 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so 811 on. 812 813 34 block Fourth IDE hard disk/CD-ROM interface 814 0 = /dev/hdg Master: whole disk (or CD-ROM) 815 64 = /dev/hdh Slave: whole disk (or CD-ROM) 816 817 Partitions are handled the same way as for the first 818 interface (see major number 3). 819 820 35 char tclmidi MIDI driver 821 0 = /dev/midi0 First MIDI port, kernel timed 822 1 = /dev/midi1 Second MIDI port, kernel timed 823 2 = /dev/midi2 Third MIDI port, kernel timed 824 3 = /dev/midi3 Fourth MIDI port, kernel timed 825 64 = /dev/rmidi0 First MIDI port, untimed 826 65 = /dev/rmidi1 Second MIDI port, untimed 827 66 = /dev/rmidi2 Third MIDI port, untimed 828 67 = /dev/rmidi3 Fourth MIDI port, untimed 829 128 = /dev/smpte0 First MIDI port, SMPTE timed 830 129 = /dev/smpte1 Second MIDI port, SMPTE timed 831 130 = /dev/smpte2 Third MIDI port, SMPTE timed 832 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed 833 834 35 block Slow memory ramdisk 835 0 = /dev/slram Slow memory ramdisk 836 837 36 char Netlink support 838 0 = /dev/route Routing, device updates, kernel to user 839 1 = /dev/skip enSKIP security cache control 840 3 = /dev/fwmonitor Firewall packet copies 841 16 = /dev/tap0 First Ethertap device 842 ... 843 31 = /dev/tap15 16th Ethertap device 844 845 36 block OBSOLETE (was MCA ESDI hard disk) 846 847 37 char IDE tape 848 0 = /dev/ht0 First IDE tape 849 1 = /dev/ht1 Second IDE tape 850 ... 851 128 = /dev/nht0 First IDE tape, no rewind-on-close 852 129 = /dev/nht1 Second IDE tape, no rewind-on-close 853 ... 854 855 Currently, only one IDE tape drive is supported. 856 857 37 block Zorro II ramdisk 858 0 = /dev/z2ram Zorro II ramdisk 859 860 38 char Myricom PCI Myrinet board 861 0 = /dev/mlanai0 First Myrinet board 862 1 = /dev/mlanai1 Second Myrinet board 863 ... 864 865 This device is used for status query, board control 866 and "user level packet I/O." This board is also 867 accessible as a standard networking "eth" device. 868 869 38 block OBSOLETE (was Linux/AP+) 870 871 39 char ML-16P experimental I/O board 872 0 = /dev/ml16pa-a0 First card, first analog channel 873 1 = /dev/ml16pa-a1 First card, second analog channel 874 ... 875 15 = /dev/ml16pa-a15 First card, 16th analog channel 876 16 = /dev/ml16pa-d First card, digital lines 877 17 = /dev/ml16pa-c0 First card, first counter/timer 878 18 = /dev/ml16pa-c1 First card, second counter/timer 879 19 = /dev/ml16pa-c2 First card, third counter/timer 880 32 = /dev/ml16pb-a0 Second card, first analog channel 881 33 = /dev/ml16pb-a1 Second card, second analog channel 882 ... 883 47 = /dev/ml16pb-a15 Second card, 16th analog channel 884 48 = /dev/ml16pb-d Second card, digital lines 885 49 = /dev/ml16pb-c0 Second card, first counter/timer 886 50 = /dev/ml16pb-c1 Second card, second counter/timer 887 51 = /dev/ml16pb-c2 Second card, third counter/timer 888 ... 889 39 block 890 891 40 char 892 893 40 block 894 895 41 char Yet Another Micro Monitor 896 0 = /dev/yamm Yet Another Micro Monitor 897 898 41 block 899 900 42 char Demo/sample use 901 902 42 block Demo/sample use 903 904 This number is intended for use in sample code, as 905 well as a general "example" device number. It 906 should never be used for a device driver that is being 907 distributed; either obtain an official number or use 908 the local/experimental range. The sudden addition or 909 removal of a driver with this number should not cause 910 ill effects to the system (bugs excepted.) 911 912 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A 913 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT. 914 915 43 char isdn4linux virtual modem 916 0 = /dev/ttyI0 First virtual modem 917 ... 918 63 = /dev/ttyI63 64th virtual modem 919 920 43 block Network block devices 921 0 = /dev/nb0 First network block device 922 1 = /dev/nb1 Second network block device 923 ... 924 925 Network Block Device is somehow similar to loopback 926 devices: If you read from it, it sends packet across 927 network asking server for data. If you write to it, it 928 sends packet telling server to write. It could be used 929 to mounting filesystems over the net, swapping over 930 the net, implementing block device in userland etc. 931 932 44 char isdn4linux virtual modem - alternate devices 933 0 = /dev/cui0 Callout device for ttyI0 934 ... 935 63 = /dev/cui63 Callout device for ttyI63 936 937 44 block Flash Translation Layer (FTL) filesystems 938 0 = /dev/ftla FTL on first Memory Technology Device 939 16 = /dev/ftlb FTL on second Memory Technology Device 940 32 = /dev/ftlc FTL on third Memory Technology Device 941 ... 942 240 = /dev/ftlp FTL on 16th Memory Technology Device 943 944 Partitions are handled in the same way as for IDE 945 disks (see major number 3) except that the partition 946 limit is 15 rather than 63 per disk (same as SCSI.) 947 948 45 char isdn4linux ISDN BRI driver 949 0 = /dev/isdn0 First virtual B channel raw data 950 ... 951 63 = /dev/isdn63 64th virtual B channel raw data 952 64 = /dev/isdnctrl0 First channel control/debug 953 ... 954 127 = /dev/isdnctrl63 64th channel control/debug 955 956 128 = /dev/ippp0 First SyncPPP device 957 ... 958 191 = /dev/ippp63 64th SyncPPP device 959 960 255 = /dev/isdninfo ISDN monitor interface 961 962 45 block Parallel port IDE disk devices 963 0 = /dev/pda First parallel port IDE disk 964 16 = /dev/pdb Second parallel port IDE disk 965 32 = /dev/pdc Third parallel port IDE disk 966 48 = /dev/pdd Fourth parallel port IDE disk 967 968 Partitions are handled in the same way as for IDE 969 disks (see major number 3) except that the partition 970 limit is 15 rather than 63 per disk. 971 972 46 char Comtrol Rocketport serial card 973 0 = /dev/ttyR0 First Rocketport port 974 1 = /dev/ttyR1 Second Rocketport port 975 ... 976 46 block Parallel port ATAPI CD-ROM devices 977 0 = /dev/pcd0 First parallel port ATAPI CD-ROM 978 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM 979 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM 980 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM 981 982 47 char Comtrol Rocketport serial card - alternate devices 983 0 = /dev/cur0 Callout device for ttyR0 984 1 = /dev/cur1 Callout device for ttyR1 985 ... 986 47 block Parallel port ATAPI disk devices 987 0 = /dev/pf0 First parallel port ATAPI disk 988 1 = /dev/pf1 Second parallel port ATAPI disk 989 2 = /dev/pf2 Third parallel port ATAPI disk 990 3 = /dev/pf3 Fourth parallel port ATAPI disk 991 992 This driver is intended for floppy disks and similar 993 devices and hence does not support partitioning. 994 995 48 char SDL RISCom serial card 996 0 = /dev/ttyL0 First RISCom port 997 1 = /dev/ttyL1 Second RISCom port 998 ... 999 48 block Mylex DAC960 PCI RAID controller; first controller 1000 0 = /dev/rd/c0d0 First disk, whole disk
1001 8 = /dev/rd/c0d1 Second disk, whole disk 1002 ... 1003 248 = /dev/rd/c0d31 32nd disk, whole disk 1004 1005 For partitions add: 1006 0 = /dev/rd/c?d? Whole disk 1007 1 = /dev/rd/c?d?p1 First partition 1008 ... 1009 7 = /dev/rd/c?d?p7 Seventh partition 1010 1011 49 char SDL RISCom serial card - alternate devices 1012 0 = /dev/cul0 Callout device for ttyL0 1013 1 = /dev/cul1 Callout device for ttyL1 1014 ... 1015 49 block Mylex DAC960 PCI RAID controller; second controller 1016 0 = /dev/rd/c1d0 First disk, whole disk 1017 8 = /dev/rd/c1d1 Second disk, whole disk 1018 ... 1019 248 = /dev/rd/c1d31 32nd disk, whole disk 1020 1021 Partitions are handled as for major 48. 1022 1023 50 char Reserved for GLINT 1024 1025 50 block Mylex DAC960 PCI RAID controller; third controller 1026 0 = /dev/rd/c2d0 First disk, whole disk 1027 8 = /dev/rd/c2d1 Second disk, whole disk 1028 ... 1029 248 = /dev/rd/c2d31 32nd disk, whole disk 1030 1031 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem 1032 0 = /dev/bc0 First Baycom radio modem 1033 1 = /dev/bc1 Second Baycom radio modem 1034 ... 1035 51 block Mylex DAC960 PCI RAID controller; fourth controller 1036 0 = /dev/rd/c3d0 First disk, whole disk 1037 8 = /dev/rd/c3d1 Second disk, whole disk 1038 ... 1039 248 = /dev/rd/c3d31 32nd disk, whole disk 1040 1041 Partitions are handled as for major 48. 1042 1043 52 char Spellcaster DataComm/BRI ISDN card 1044 0 = /dev/dcbri0 First DataComm card 1045 1 = /dev/dcbri1 Second DataComm card 1046 2 = /dev/dcbri2 Third DataComm card 1047 3 = /dev/dcbri3 Fourth DataComm card 1048 1049 52 block Mylex DAC960 PCI RAID controller; fifth controller 1050 0 = /dev/rd/c4d0 First disk, whole disk 1051 8 = /dev/rd/c4d1 Second disk, whole disk 1052 ... 1053 248 = /dev/rd/c4d31 32nd disk, whole disk 1054 1055 Partitions are handled as for major 48. 1056 1057 53 char BDM interface for remote debugging MC683xx microcontrollers 1058 0 = /dev/pd_bdm0 PD BDM interface on lp0 1059 1 = /dev/pd_bdm1 PD BDM interface on lp1 1060 2 = /dev/pd_bdm2 PD BDM interface on lp2 1061 4 = /dev/icd_bdm0 ICD BDM interface on lp0 1062 5 = /dev/icd_bdm1 ICD BDM interface on lp1 1063 6 = /dev/icd_bdm2 ICD BDM interface on lp2 1064 1065 This device is used for the interfacing to the MC683xx 1066 microcontrollers via Background Debug Mode by use of a 1067 Parallel Port interface. PD is the Motorola Public 1068 Domain Interface and ICD is the commercial interface 1069 by P&E. 1070 1071 53 block Mylex DAC960 PCI RAID controller; sixth controller 1072 0 = /dev/rd/c5d0 First disk, whole disk 1073 8 = /dev/rd/c5d1 Second disk, whole disk 1074 ... 1075 248 = /dev/rd/c5d31 32nd disk, whole disk 1076 1077 Partitions are handled as for major 48. 1078 1079 54 char Electrocardiognosis Holter serial card 1080 0 = /dev/holter0 First Holter port 1081 1 = /dev/holter1 Second Holter port 1082 2 = /dev/holter2 Third Holter port 1083 1084 A custom serial card used by Electrocardiognosis SRL 1085 <mseritan@ottonel.pub.ro> to transfer data from Holter 1086 24-hour heart monitoring equipment. 1087 1088 54 block Mylex DAC960 PCI RAID controller; seventh controller 1089 0 = /dev/rd/c6d0 First disk, whole disk 1090 8 = /dev/rd/c6d1 Second disk, whole disk 1091 ... 1092 248 = /dev/rd/c6d31 32nd disk, whole disk 1093 1094 Partitions are handled as for major 48. 1095 1096 55 char DSP56001 digital signal processor 1097 0 = /dev/dsp56k First DSP56001 1098 1099 55 block Mylex DAC960 PCI RAID controller; eighth controller 1100 0 = /dev/rd/c7d0 First disk, whole disk 1101 8 = /dev/rd/c7d1 Second disk, whole disk 1102 ... 1103 248 = /dev/rd/c7d31 32nd disk, whole disk 1104 1105 Partitions are handled as for major 48. 1106 1107 56 char Apple Desktop Bus 1108 0 = /dev/adb ADB bus control 1109 1110 Additional devices will be added to this number, all 1111 starting with /dev/adb. 1112 1113 56 block Fifth IDE hard disk/CD-ROM interface 1114 0 = /dev/hdi Master: whole disk (or CD-ROM) 1115 64 = /dev/hdj Slave: whole disk (or CD-ROM) 1116 1117 Partitions are handled the same way as for the first 1118 interface (see major number 3). 1119 1120 57 char Hayes ESP serial card 1121 0 = /dev/ttyP0 First ESP port 1122 1 = /dev/ttyP1 Second ESP port 1123 ... 1124 1125 57 block Sixth IDE hard disk/CD-ROM interface 1126 0 = /dev/hdk Master: whole disk (or CD-ROM) 1127 64 = /dev/hdl Slave: whole disk (or CD-ROM) 1128 1129 Partitions are handled the same way as for the first 1130 interface (see major number 3). 1131 1132 58 char Hayes ESP serial card - alternate devices 1133 0 = /dev/cup0 Callout device for ttyP0 1134 1 = /dev/cup1 Callout device for ttyP1 1135 ... 1136 1137 58 block Reserved for logical volume manager 1138 1139 59 char sf firewall package 1140 0 = /dev/firewall Communication with sf kernel module 1141 1142 59 block Generic PDA filesystem device 1143 0 = /dev/pda0 First PDA device 1144 1 = /dev/pda1 Second PDA device 1145 ... 1146 1147 The pda devices are used to mount filesystems on 1148 remote pda's (basically slow handheld machines with 1149 proprietary OS's and limited memory and storage 1150 running small fs translation drivers) through serial / 1151 IRDA / parallel links. 1152 1153 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc 1154 1155 60-63 char LOCAL/EXPERIMENTAL USE 1156 1157 60-63 block LOCAL/EXPERIMENTAL USE 1158 Allocated for local/experimental use. For devices not 1159 assigned official numbers, these ranges should be 1160 used in order to avoid conflicting with future assignments. 1161 1162 64 char ENskip kernel encryption package 1163 0 = /dev/enskip Communication with ENskip kernel module 1164 1165 64 block Scramdisk/DriveCrypt encrypted devices 1166 0 = /dev/scramdisk/master Master node for ioctls 1167 1 = /dev/scramdisk/1 First encrypted device 1168 2 = /dev/scramdisk/2 Second encrypted device 1169 ... 1170 255 = /dev/scramdisk/255 255th encrypted device 1171 1172 The filename of the encrypted container and the passwords 1173 are sent via ioctls (using the sdmount tool) to the master 1174 node which then activates them via one of the 1175 /dev/scramdisk/x nodes for loop mounting (all handled 1176 through the sdmount tool). 1177 1178 Requested by: andy@scramdisklinux.org 1179 1180 65 char Sundance "plink" Transputer boards (obsolete, unused) 1181 0 = /dev/plink0 First plink device 1182 1 = /dev/plink1 Second plink device 1183 2 = /dev/plink2 Third plink device 1184 3 = /dev/plink3 Fourth plink device 1185 64 = /dev/rplink0 First plink device, raw 1186 65 = /dev/rplink1 Second plink device, raw 1187 66 = /dev/rplink2 Third plink device, raw 1188 67 = /dev/rplink3 Fourth plink device, raw 1189 128 = /dev/plink0d First plink device, debug 1190 129 = /dev/plink1d Second plink device, debug 1191 130 = /dev/plink2d Third plink device, debug 1192 131 = /dev/plink3d Fourth plink device, debug 1193 192 = /dev/rplink0d First plink device, raw, debug 1194 193 = /dev/rplink1d Second plink device, raw, debug 1195 194 = /dev/rplink2d Third plink device, raw, debug 1196 195 = /dev/rplink3d Fourth plink device, raw, debug 1197 1198 This is a commercial driver; contact James Howes 1199 <jth@prosig.demon.co.uk> for information. 1200 1201 65 block SCSI disk devices (16-31) 1202 0 = /dev/sdq 17th SCSI disk whole disk 1203 16 = /dev/sdr 18th SCSI disk whole disk 1204 32 = /dev/sds 19th SCSI disk whole disk 1205 ... 1206 240 = /dev/sdaf 32nd SCSI disk whole disk 1207 1208 Partitions are handled in the same way as for IDE 1209 disks (see major number 3) except that the limit on 1210 partitions is 15. 1211 1212 66 char YARC PowerPC PCI coprocessor card 1213 0 = /dev/yppcpci0 First YARC card 1214 1 = /dev/yppcpci1 Second YARC card 1215 ... 1216 1217 66 block SCSI disk devices (32-47) 1218 0 = /dev/sdag 33th SCSI disk whole disk 1219 16 = /dev/sdah 34th SCSI disk whole disk 1220 32 = /dev/sdai 35th SCSI disk whole disk 1221 ... 1222 240 = /dev/sdav 48nd SCSI disk whole disk 1223 1224 Partitions are handled in the same way as for IDE 1225 disks (see major number 3) except that the limit on 1226 partitions is 15. 1227 1228 67 char Coda network file system 1229 0 = /dev/cfs0 Coda cache manager 1230 1231 See http://www.coda.cs.cmu.edu for information about Coda. 1232 1233 67 block SCSI disk devices (48-63) 1234 0 = /dev/sdaw 49th SCSI disk whole disk 1235 16 = /dev/sdax 50th SCSI disk whole disk 1236 32 = /dev/sday 51st SCSI disk whole disk 1237 ... 1238 240 = /dev/sdbl 64th SCSI disk whole disk 1239 1240 Partitions are handled in the same way as for IDE 1241 disks (see major number 3) except that the limit on 1242 partitions is 15. 1243 1244 68 char CAPI 2.0 interface 1245 0 = /dev/capi20 Control device 1246 1 = /dev/capi20.00 First CAPI 2.0 application 1247 2 = /dev/capi20.01 Second CAPI 2.0 application 1248 ... 1249 20 = /dev/capi20.19 19th CAPI 2.0 application 1250 1251 ISDN CAPI 2.0 driver for use with CAPI 2.0 1252 applications; currently supports the AVM B1 card. 1253 1254 68 block SCSI disk devices (64-79) 1255 0 = /dev/sdbm 65th SCSI disk whole disk 1256 16 = /dev/sdbn 66th SCSI disk whole disk 1257 32 = /dev/sdbo 67th SCSI disk whole disk 1258 ... 1259 240 = /dev/sdcb 80th SCSI disk whole disk 1260 1261 Partitions are handled in the same way as for IDE 1262 disks (see major number 3) except that the limit on 1263 partitions is 15. 1264 1265 69 char MA16 numeric accelerator card 1266 0 = /dev/ma16 Board memory access 1267 1268 69 block SCSI disk devices (80-95) 1269 0 = /dev/sdcc 81st SCSI disk whole disk 1270 16 = /dev/sdcd 82nd SCSI disk whole disk 1271 32 = /dev/sdce 83th SCSI disk whole disk 1272 ... 1273 240 = /dev/sdcr 96th SCSI disk whole disk 1274 1275 Partitions are handled in the same way as for IDE 1276 disks (see major number 3) except that the limit on 1277 partitions is 15. 1278 1279 70 char SpellCaster Protocol Services Interface 1280 0 = /dev/apscfg Configuration interface 1281 1 = /dev/apsauth Authentication interface 1282 2 = /dev/apslog Logging interface 1283 3 = /dev/apsdbg Debugging interface 1284 64 = /dev/apsisdn ISDN command interface 1285 65 = /dev/apsasync Async command interface 1286 128 = /dev/apsmon Monitor interface 1287 1288 70 block SCSI disk devices (96-111) 1289 0 = /dev/sdcs 97th SCSI disk whole disk 1290 16 = /dev/sdct 98th SCSI disk whole disk 1291 32 = /dev/sdcu 99th SCSI disk whole disk 1292 ... 1293 240 = /dev/sddh 112nd SCSI disk whole disk 1294 1295 Partitions are handled in the same way as for IDE 1296 disks (see major number 3) except that the limit on 1297 partitions is 15. 1298 1299 71 char Computone IntelliPort II serial card 1300 0 = /dev/ttyF0 IntelliPort II board 0, port 0 1301 1 = /dev/ttyF1 IntelliPort II board 0, port 1 1302 ... 1303 63 = /dev/ttyF63 IntelliPort II board 0, port 63 1304 64 = /dev/ttyF64 IntelliPort II board 1, port 0 1305 65 = /dev/ttyF65 IntelliPort II board 1, port 1 1306 ... 1307 127 = /dev/ttyF127 IntelliPort II board 1, port 63 1308 128 = /dev/ttyF128 IntelliPort II board 2, port 0 1309 129 = /dev/ttyF129 IntelliPort II board 2, port 1 1310 ... 1311 191 = /dev/ttyF191 IntelliPort II board 2, port 63 1312 192 = /dev/ttyF192 IntelliPort II board 3, port 0 1313 193 = /dev/ttyF193 IntelliPort II board 3, port 1 1314 ... 1315 255 = /dev/ttyF255 IntelliPort II board 3, port 63 1316 1317 71 block SCSI disk devices (112-127) 1318 0 = /dev/sddi 113th SCSI disk whole disk 1319 16 = /dev/sddj 114th SCSI disk whole disk 1320 32 = /dev/sddk 115th SCSI disk whole disk 1321 ... 1322 240 = /dev/sddx 128th SCSI disk whole disk 1323 1324 Partitions are handled in the same way as for IDE 1325 disks (see major number 3) except that the limit on 1326 partitions is 15. 1327 1328 72 char Computone IntelliPort II serial card - alternate devices 1329 0 = /dev/cuf0 Callout device for ttyF0 1330 1 = /dev/cuf1 Callout device for ttyF1 1331 ... 1332 63 = /dev/cuf63 Callout device for ttyF63 1333 64 = /dev/cuf64 Callout device for ttyF64 1334 65 = /dev/cuf65 Callout device for ttyF65 1335 ... 1336 127 = /dev/cuf127 Callout device for ttyF127 1337 128 = /dev/cuf128 Callout device for ttyF128 1338 129 = /dev/cuf129 Callout device for ttyF129 1339 ... 1340 191 = /dev/cuf191 Callout device for ttyF191 1341 192 = /dev/cuf192 Callout device for ttyF192 1342 193 = /dev/cuf193 Callout device for ttyF193 1343 ... 1344 255 = /dev/cuf255 Callout device for ttyF255 1345 1346 72 block Compaq Intelligent Drive Array, first controller 1347 0 = /dev/ida/c0d0 First logical drive whole disk 1348 16 = /dev/ida/c0d1 Second logical drive whole disk 1349 ... 1350 240 = /dev/ida/c0d15 16th logical drive whole disk 1351 1352 Partitions are handled the same way as for Mylex 1353 DAC960 (see major number 48) except that the limit on 1354 partitions is 15. 1355 1356 73 char Computone IntelliPort II serial card - control devices 1357 0 = /dev/ip2ipl0 Loadware device for board 0 1358 1 = /dev/ip2stat0 Status device for board 0 1359 4 = /dev/ip2ipl1 Loadware device for board 1 1360 5 = /dev/ip2stat1 Status device for board 1 1361 8 = /dev/ip2ipl2 Loadware device for board 2 1362 9 = /dev/ip2stat2 Status device for board 2 1363 12 = /dev/ip2ipl3 Loadware device for board 3 1364 13 = /dev/ip2stat3 Status device for board 3 1365 1366 73 block Compaq Intelligent Drive Array, second controller 1367 0 = /dev/ida/c1d0 First logical drive whole disk 1368 16 = /dev/ida/c1d1 Second logical drive whole disk 1369 ... 1370 240 = /dev/ida/c1d15 16th logical drive whole disk 1371 1372 Partitions are handled the same way as for Mylex 1373 DAC960 (see major number 48) except that the limit on 1374 partitions is 15. 1375 1376 74 char SCI bridge 1377 0 = /dev/SCI/0 SCI device 0 1378 1 = /dev/SCI/1 SCI device 1 1379 ... 1380 1381 Currently for Dolphin Interconnect Solutions' PCI-SCI 1382 bridge. 1383 1384 74 block Compaq Intelligent Drive Array, third controller 1385 0 = /dev/ida/c2d0 First logical drive whole disk 1386 16 = /dev/ida/c2d1 Second logical drive whole disk 1387 ... 1388 240 = /dev/ida/c2d15 16th logical drive whole disk 1389 1390 Partitions are handled the same way as for Mylex 1391 DAC960 (see major number 48) except that the limit on 1392 partitions is 15. 1393 1394 75 char Specialix IO8+ serial card 1395 0 = /dev/ttyW0 First IO8+ port, first card 1396 1 = /dev/ttyW1 Second IO8+ port, first card 1397 ... 1398 8 = /dev/ttyW8 First IO8+ port, second card 1399 ... 1400 1401 75 block Compaq Intelligent Drive Array, fourth controller 1402 0 = /dev/ida/c3d0 First logical drive whole disk 1403 16 = /dev/ida/c3d1 Second logical drive whole disk 1404 ... 1405 240 = /dev/ida/c3d15 16th logical drive whole disk 1406 1407 Partitions are handled the same way as for Mylex 1408 DAC960 (see major number 48) except that the limit on 1409 partitions is 15. 1410 1411 76 char Specialix IO8+ serial card - alternate devices 1412 0 = /dev/cuw0 Callout device for ttyW0 1413 1 = /dev/cuw1 Callout device for ttyW1 1414 ... 1415 8 = /dev/cuw8 Callout device for ttyW8 1416 ... 1417 1418 76 block Compaq Intelligent Drive Array, fifth controller 1419 0 = /dev/ida/c4d0 First logical drive whole disk 1420 16 = /dev/ida/c4d1 Second logical drive whole disk 1421 ... 1422 240 = /dev/ida/c4d15 16th logical drive whole disk 1423 1424 Partitions are handled the same way as for Mylex 1425 DAC960 (see major number 48) except that the limit on 1426 partitions is 15. 1427 1428 1429 77 char ComScire Quantum Noise Generator 1430 0 = /dev/qng ComScire Quantum Noise Generator 1431 1432 77 block Compaq Intelligent Drive Array, sixth controller 1433 0 = /dev/ida/c5d0 First logical drive whole disk 1434 16 = /dev/ida/c5d1 Second logical drive whole disk 1435 ... 1436 240 = /dev/ida/c5d15 16th logical drive whole disk 1437 1438 Partitions are handled the same way as for Mylex 1439 DAC960 (see major number 48) except that the limit on 1440 partitions is 15. 1441 1442 78 char PAM Software's multimodem boards 1443 0 = /dev/ttyM0 First PAM modem 1444 1 = /dev/ttyM1 Second PAM modem 1445 ... 1446 1447 78 block Compaq Intelligent Drive Array, seventh controller 1448 0 = /dev/ida/c6d0 First logical drive whole disk 1449 16 = /dev/ida/c6d1 Second logical drive whole disk 1450 ... 1451 240 = /dev/ida/c6d15 16th logical drive whole disk 1452 1453 Partitions are handled the same way as for Mylex 1454 DAC960 (see major number 48) except that the limit on 1455 partitions is 15. 1456 1457 79 char PAM Software's multimodem boards - alternate devices 1458 0 = /dev/cum0 Callout device for ttyM0 1459 1 = /dev/cum1 Callout device for ttyM1 1460 ... 1461 1462 79 block Compaq Intelligent Drive Array, eighth controller 1463 0 = /dev/ida/c7d0 First logical drive whole disk 1464 16 = /dev/ida/c7d1 Second logical drive whole disk 1465 ... 1466 240 = /dev/ida/c715 16th logical drive whole disk 1467 1468 Partitions are handled the same way as for Mylex 1469 DAC960 (see major number 48) except that the limit on 1470 partitions is 15. 1471 1472 80 char Photometrics AT200 CCD camera 1473 0 = /dev/at200 Photometrics AT200 CCD camera 1474 1475 80 block I2O hard disk 1476 0 = /dev/i2o/hda First I2O hard disk, whole disk 1477 16 = /dev/i2o/hdb Second I2O hard disk, whole disk 1478 ... 1479 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk 1480 1481 Partitions are handled in the same way as for IDE 1482 disks (see major number 3) except that the limit on 1483 partitions is 15. 1484 1485 81 char video4linux 1486 0 = /dev/video0 Video capture/overlay device 1487 ... 1488 63 = /dev/video63 Video capture/overlay device 1489 64 = /dev/radio0 Radio device 1490 ... 1491 127 = /dev/radio63 Radio device 1492 224 = /dev/vbi0 Vertical blank interrupt 1493 ... 1494 255 = /dev/vbi31 Vertical blank interrupt 1495 1496 81 block I2O hard disk 1497 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk 1498 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk 1499 ... 1500 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk 1501 1502 Partitions are handled in the same way as for IDE 1503 disks (see major number 3) except that the limit on 1504 partitions is 15. 1505 1506 82 char WiNRADiO communications receiver card 1507 0 = /dev/winradio0 First WiNRADiO card 1508 1 = /dev/winradio1 Second WiNRADiO card 1509 ... 1510 1511 The driver and documentation may be obtained from 1512 http://www.winradio.com/ 1513 1514 82 block I2O hard disk 1515 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk 1516 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk 1517 ... 1518 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk 1519 1520 Partitions are handled in the same way as for IDE 1521 disks (see major number 3) except that the limit on 1522 partitions is 15. 1523 1524 83 char Matrox mga_vid video driver 1525 0 = /dev/mga_vid0 1st video card 1526 1 = /dev/mga_vid1 2nd video card 1527 2 = /dev/mga_vid2 3rd video card 1528 ... 1529 15 = /dev/mga_vid15 16th video card 1530 1531 83 block I2O hard disk 1532 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk 1533 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk 1534 ... 1535 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk 1536 1537 Partitions are handled in the same way as for IDE 1538 disks (see major number 3) except that the limit on 1539 partitions is 15. 1540 1541 84 char Ikon 1011[57] Versatec Greensheet Interface 1542 0 = /dev/ihcp0 First Greensheet port 1543 1 = /dev/ihcp1 Second Greensheet port 1544 1545 84 block I2O hard disk 1546 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk 1547 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk 1548 ... 1549 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk 1550 1551 Partitions are handled in the same way as for IDE 1552 disks (see major number 3) except that the limit on 1553 partitions is 15. 1554 1555 85 char Linux/SGI shared memory input queue 1556 0 = /dev/shmiq Master shared input queue 1557 1 = /dev/qcntl0 First device pushed 1558 2 = /dev/qcntl1 Second device pushed 1559 ... 1560 1561 85 block I2O hard disk 1562 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk 1563 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk 1564 ... 1565 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk 1566 1567 Partitions are handled in the same way as for IDE 1568 disks (see major number 3) except that the limit on 1569 partitions is 15. 1570 1571 86 char SCSI media changer 1572 0 = /dev/sch0 First SCSI media changer 1573 1 = /dev/sch1 Second SCSI media changer 1574 ... 1575 1576 86 block I2O hard disk 1577 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk 1578 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk 1579 ... 1580 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk 1581 1582 Partitions are handled in the same way as for IDE 1583 disks (see major number 3) except that the limit on 1584 partitions is 15. 1585 1586 87 char Sony Control-A1 stereo control bus 1587 0 = /dev/controla0 First device on chain 1588 1 = /dev/controla1 Second device on chain 1589 ... 1590 1591 87 block I2O hard disk 1592 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk 1593 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk 1594 ... 1595 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk 1596 1597 Partitions are handled in the same way as for IDE 1598 disks (see major number 3) except that the limit on 1599 partitions is 15. 1600 1601 88 char COMX synchronous serial card 1602 0 = /dev/comx0 COMX channel 0 1603 1 = /dev/comx1 COMX channel 1 1604 ... 1605 1606 88 block Seventh IDE hard disk/CD-ROM interface 1607 0 = /dev/hdm Master: whole disk (or CD-ROM) 1608 64 = /dev/hdn Slave: whole disk (or CD-ROM) 1609 1610 Partitions are handled the same way as for the first 1611 interface (see major number 3). 1612 1613 89 char I2C bus interface 1614 0 = /dev/i2c-0 First I2C adapter 1615 1 = /dev/i2c-1 Second I2C adapter 1616 ... 1617 1618 89 block Eighth IDE hard disk/CD-ROM interface 1619 0 = /dev/hdo Master: whole disk (or CD-ROM) 1620 64 = /dev/hdp Slave: whole disk (or CD-ROM) 1621 1622 Partitions are handled the same way as for the first 1623 interface (see major number 3). 1624 1625 90 char Memory Technology Device (RAM, ROM, Flash) 1626 0 = /dev/mtd0 First MTD (rw) 1627 1 = /dev/mtdr0 First MTD (ro) 1628 ... 1629 30 = /dev/mtd15 16th MTD (rw) 1630 31 = /dev/mtdr15 16th MTD (ro) 1631 1632 90 block Ninth IDE hard disk/CD-ROM interface 1633 0 = /dev/hdq Master: whole disk (or CD-ROM) 1634 64 = /dev/hdr Slave: whole disk (or CD-ROM) 1635 1636 Partitions are handled the same way as for the first 1637 interface (see major number 3). 1638 1639 91 char CAN-Bus devices 1640 0 = /dev/can0 First CAN-Bus controller 1641 1 = /dev/can1 Second CAN-Bus controller 1642 ... 1643 1644 91 block Tenth IDE hard disk/CD-ROM interface 1645 0 = /dev/hds Master: whole disk (or CD-ROM) 1646 64 = /dev/hdt Slave: whole disk (or CD-ROM) 1647 1648 Partitions are handled the same way as for the first 1649 interface (see major number 3). 1650 1651 92 char Reserved for ith Kommunikationstechnik MIC ISDN card 1652 1653 92 block PPDD encrypted disk driver 1654 0 = /dev/ppdd0 First encrypted disk 1655 1 = /dev/ppdd1 Second encrypted disk 1656 ... 1657 1658 Partitions are handled in the same way as for IDE 1659 disks (see major number 3) except that the limit on 1660 partitions is 15. 1661 1662 93 char 1663 1664 93 block NAND Flash Translation Layer filesystem 1665 0 = /dev/nftla First NFTL layer 1666 16 = /dev/nftlb Second NFTL layer 1667 ... 1668 240 = /dev/nftlp 16th NTFL layer 1669 1670 94 char 1671 1672 94 block IBM S/390 DASD block storage 1673 0 = /dev/dasda First DASD device, major 1674 1 = /dev/dasda1 First DASD device, block 1 1675 2 = /dev/dasda2 First DASD device, block 2 1676 3 = /dev/dasda3 First DASD device, block 3 1677 4 = /dev/dasdb Second DASD device, major 1678 5 = /dev/dasdb1 Second DASD device, block 1 1679 6 = /dev/dasdb2 Second DASD device, block 2 1680 7 = /dev/dasdb3 Second DASD device, block 3 1681 ... 1682 1683 95 char IP filter 1684 0 = /dev/ipl Filter control device/log file 1685 1 = /dev/ipnat NAT control device/log file 1686 2 = /dev/ipstate State information log file 1687 3 = /dev/ipauth Authentication control device/log file 1688 ... 1689 1690 96 char Parallel port ATAPI tape devices 1691 0 = /dev/pt0 First parallel port ATAPI tape 1692 1 = /dev/pt1 Second parallel port ATAPI tape 1693 ... 1694 128 = /dev/npt0 First p.p. ATAPI tape, no rewind 1695 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind 1696 ... 1697 1698 96 block Inverse NAND Flash Translation Layer 1699 0 = /dev/inftla First INFTL layer 1700 16 = /dev/inftlb Second INFTL layer 1701 ... 1702 240 = /dev/inftlp 16th INTFL layer 1703 1704 97 char Parallel port generic ATAPI interface 1705 0 = /dev/pg0 First parallel port ATAPI device 1706 1 = /dev/pg1 Second parallel port ATAPI device 1707 2 = /dev/pg2 Third parallel port ATAPI device 1708 3 = /dev/pg3 Fourth parallel port ATAPI device 1709 1710 These devices support the same API as the generic SCSI 1711 devices. 1712 1713 98 char Control and Measurement Device (comedi) 1714 0 = /dev/comedi0 First comedi device 1715 1 = /dev/comedi1 Second comedi device 1716 ... 1717 1718 See http://stm.lbl.gov/comedi. 1719 1720 98 block User-mode virtual block device 1721 0 = /dev/ubda First user-mode block device 1722 16 = /dev/udbb Second user-mode block device 1723 ... 1724 1725 Partitions are handled in the same way as for IDE 1726 disks (see major number 3) except that the limit on 1727 partitions is 15. 1728 1729 This device is used by the user-mode virtual kernel port. 1730 1731 99 char Raw parallel ports 1732 0 = /dev/parport0 First parallel port 1733 1 = /dev/parport1 Second parallel port 1734 ... 1735 1736 99 block JavaStation flash disk 1737 0 = /dev/jsfd JavaStation flash disk 1738 1739100 char Telephony for Linux 1740 0 = /dev/phone0 First telephony device 1741 1 = /dev/phone1 Second telephony device 1742 ... 1743 1744101 char Motorola DSP 56xxx board 1745 0 = /dev/mdspstat Status information 1746 1 = /dev/mdsp1 First DSP board I/O controls 1747 ... 1748 16 = /dev/mdsp16 16th DSP board I/O controls 1749 1750101 block AMI HyperDisk RAID controller 1751 0 = /dev/amiraid/ar0 First array whole disk 1752 16 = /dev/amiraid/ar1 Second array whole disk 1753 ... 1754 240 = /dev/amiraid/ar15 16th array whole disk 1755 1756 For each device, partitions are added as: 1757 0 = /dev/amiraid/ar? Whole disk 1758 1 = /dev/amiraid/ar?p1 First partition 1759 2 = /dev/amiraid/ar?p2 Second partition 1760 ... 1761 15 = /dev/amiraid/ar?p15 15th partition 1762 1763102 char 1764 1765102 block Compressed block device 1766 0 = /dev/cbd/a First compressed block device, whole device 1767 16 = /dev/cbd/b Second compressed block device, whole device 1768 ... 1769 240 = /dev/cbd/p 16th compressed block device, whole device 1770 1771 Partitions are handled in the same way as for IDE 1772 disks (see major number 3) except that the limit on 1773 partitions is 15. 1774 1775103 char Arla network file system 1776 0 = /dev/nnpfs0 First NNPFS device 1777 1 = /dev/nnpfs1 Second NNPFS device 1778 1779 Arla is a free clone of the Andrew File System, AFS. 1780 The NNPFS device gives user mode filesystem 1781 implementations a kernel presence for caching and easy 1782 mounting. For more information about the project, 1783 write to <arla-drinkers@stacken.kth.se> or see 1784 http://www.stacken.kth.se/project/arla/ 1785 1786103 block Audit device 1787 0 = /dev/audit Audit device 1788 1789104 char Flash BIOS support 1790 1791104 block Compaq Next Generation Drive Array, first controller 1792 0 = /dev/cciss/c0d0 First logical drive, whole disk 1793 16 = /dev/cciss/c0d1 Second logical drive, whole disk 1794 ... 1795 240 = /dev/cciss/c0d15 16th logical drive, whole disk 1796 1797 Partitions are handled the same way as for Mylex 1798 DAC960 (see major number 48) except that the limit on 1799 partitions is 15. 1800 1801105 char Comtrol VS-1000 serial controller 1802 0 = /dev/ttyV0 First VS-1000 port 1803 1 = /dev/ttyV1 Second VS-1000 port 1804 ... 1805 1806105 block Compaq Next Generation Drive Array, second controller 1807 0 = /dev/cciss/c1d0 First logical drive, whole disk 1808 16 = /dev/cciss/c1d1 Second logical drive, whole disk 1809 ... 1810 240 = /dev/cciss/c1d15 16th logical drive, whole disk 1811 1812 Partitions are handled the same way as for Mylex 1813 DAC960 (see major number 48) except that the limit on 1814 partitions is 15. 1815 1816106 char Comtrol VS-1000 serial controller - alternate devices 1817 0 = /dev/cuv0 First VS-1000 port 1818 1 = /dev/cuv1 Second VS-1000 port 1819 ... 1820 1821106 block Compaq Next Generation Drive Array, third controller 1822 0 = /dev/cciss/c2d0 First logical drive, whole disk 1823 16 = /dev/cciss/c2d1 Second logical drive, whole disk 1824 ... 1825 240 = /dev/cciss/c2d15 16th logical drive, whole disk 1826 1827 Partitions are handled the same way as for Mylex 1828 DAC960 (see major number 48) except that the limit on 1829 partitions is 15. 1830 1831107 char 3Dfx Voodoo Graphics device 1832 0 = /dev/3dfx Primary 3Dfx graphics device 1833 1834107 block Compaq Next Generation Drive Array, fourth controller 1835 0 = /dev/cciss/c3d0 First logical drive, whole disk 1836 16 = /dev/cciss/c3d1 Second logical drive, whole disk 1837 ... 1838 240 = /dev/cciss/c3d15 16th logical drive, whole disk 1839 1840 Partitions are handled the same way as for Mylex 1841 DAC960 (see major number 48) except that the limit on 1842 partitions is 15. 1843 1844108 char Device independent PPP interface 1845 0 = /dev/ppp Device independent PPP interface 1846 1847108 block Compaq Next Generation Drive Array, fifth controller 1848 0 = /dev/cciss/c4d0 First logical drive, whole disk 1849 16 = /dev/cciss/c4d1 Second logical drive, whole disk 1850 ... 1851 240 = /dev/cciss/c4d15 16th logical drive, whole disk 1852 1853 Partitions are handled the same way as for Mylex 1854 DAC960 (see major number 48) except that the limit on 1855 partitions is 15. 1856 1857109 char Reserved for logical volume manager 1858 1859109 block Compaq Next Generation Drive Array, sixth controller 1860 0 = /dev/cciss/c5d0 First logical drive, whole disk 1861 16 = /dev/cciss/c5d1 Second logical drive, whole disk 1862 ... 1863 240 = /dev/cciss/c5d15 16th logical drive, whole disk 1864 1865 Partitions are handled the same way as for Mylex 1866 DAC960 (see major number 48) except that the limit on 1867 partitions is 15. 1868 1869110 char miroMEDIA Surround board 1870 0 = /dev/srnd0 First miroMEDIA Surround board 1871 1 = /dev/srnd1 Second miroMEDIA Surround board 1872 ... 1873 1874110 block Compaq Next Generation Drive Array, seventh controller 1875 0 = /dev/cciss/c6d0 First logical drive, whole disk 1876 16 = /dev/cciss/c6d1 Second logical drive, whole disk 1877 ... 1878 240 = /dev/cciss/c6d15 16th logical drive, whole disk 1879 1880 Partitions are handled the same way as for Mylex 1881 DAC960 (see major number 48) except that the limit on 1882 partitions is 15. 1883 1884111 char 1885 1886111 block Compaq Next Generation Drive Array, eighth controller 1887 0 = /dev/cciss/c7d0 First logical drive, whole disk 1888 16 = /dev/cciss/c7d1 Second logical drive, whole disk 1889 ... 1890 240 = /dev/cciss/c7d15 16th logical drive, whole disk 1891 1892 Partitions are handled the same way as for Mylex 1893 DAC960 (see major number 48) except that the limit on 1894 partitions is 15. 1895 1896112 char ISI serial card 1897 0 = /dev/ttyM0 First ISI port 1898 1 = /dev/ttyM1 Second ISI port 1899 ... 1900 1901 There is currently a device-naming conflict between 1902 these and PAM multimodems (major 78). 1903 1904112 block IBM iSeries virtual disk 1905 0 = /dev/iseries/vda First virtual disk, whole disk 1906 8 = /dev/iseries/vdb Second virtual disk, whole disk 1907 ... 1908 200 = /dev/iseries/vdz 26th virtual disk, whole disk 1909 208 = /dev/iseries/vdaa 27th virtual disk, whole disk 1910 ... 1911 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk 1912 1913 Partitions are handled in the same way as for IDE 1914 disks (see major number 3) except that the limit on 1915 partitions is 7. 1916 1917113 char ISI serial card - alternate devices 1918 0 = /dev/cum0 Callout device for ttyM0 1919 1 = /dev/cum1 Callout device for ttyM1 1920 ... 1921 1922113 block IBM iSeries virtual CD-ROM 1923 0 = /dev/iseries/vcda First virtual CD-ROM 1924 1 = /dev/iseries/vcdb Second virtual CD-ROM 1925 ... 1926 1927114 char Picture Elements ISE board 1928 0 = /dev/ise0 First ISE board 1929 1 = /dev/ise1 Second ISE board 1930 ... 1931 128 = /dev/isex0 Control node for first ISE board 1932 129 = /dev/isex1 Control node for second ISE board 1933 ... 1934 1935 The ISE board is an embedded computer, optimized for 1936 image processing. The /dev/iseN nodes are the general 1937 I/O access to the board, the /dev/isex0 nodes command 1938 nodes used to control the board. 1939 1940114 block IDE BIOS powered software RAID interfaces such as the 1941 Promise Fastrak 1942 1943 0 = /dev/ataraid/d0 1944 1 = /dev/ataraid/d0p1 1945 2 = /dev/ataraid/d0p2 1946 ... 1947 16 = /dev/ataraid/d1 1948 17 = /dev/ataraid/d1p1 1949 18 = /dev/ataraid/d1p2 1950 ... 1951 255 = /dev/ataraid/d15p15 1952 1953 Partitions are handled in the same way as for IDE 1954 disks (see major number 3) except that the limit on 1955 partitions is 15. 1956 1957115 char TI link cable devices (115 was formerly the console driver speaker) 1958 0 = /dev/tipar0 Parallel cable on first parallel port 1959 ... 1960 7 = /dev/tipar7 Parallel cable on seventh parallel port 1961 1962 8 = /dev/tiser0 Serial cable on first serial port 1963 ... 1964 15 = /dev/tiser7 Serial cable on seventh serial port 1965 1966 16 = /dev/tiusb0 First USB cable 1967 ... 1968 47 = /dev/tiusb31 32nd USB cable 1969 1970115 block NetWare (NWFS) Devices (0-255) 1971 1972 The NWFS (NetWare) devices are used to present a 1973 collection of NetWare Mirror Groups or NetWare 1974 Partitions as a logical storage segment for 1975 use in mounting NetWare volumes. A maximum of 1976 256 NetWare volumes can be supported in a single 1977 machine. 1978 1979 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/ 1980 1981 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume 1982 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume 1983 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume 1984 ... 1985 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume 1986 1987116 char Advanced Linux Sound Driver (ALSA) 1988 1989116 block MicroMemory battery backed RAM adapter (NVRAM) 1990 Supports 16 boards, 15 partitions each. 1991 Requested by neilb at cse.unsw.edu.au. 1992 1993 0 = /dev/umem/d0 Whole of first board 1994 1 = /dev/umem/d0p1 First partition of first board 1995 2 = /dev/umem/d0p2 Second partition of first board 1996 15 = /dev/umem/d0p15 15th partition of first board 1997 1998 16 = /dev/umem/d1 Whole of second board 1999 17 = /dev/umem/d1p1 First partition of second board 2000 ...
2001 255= /dev/umem/d15p15 15th partition of 16th board. 2002 2003117 char COSA/SRP synchronous serial card 2004 0 = /dev/cosa0c0 1st board, 1st channel 2005 1 = /dev/cosa0c1 1st board, 2nd channel 2006 ... 2007 16 = /dev/cosa1c0 2nd board, 1st channel 2008 17 = /dev/cosa1c1 2nd board, 2nd channel 2009 ... 2010 2011117 block Enterprise Volume Management System (EVMS) 2012 2013 The EVMS driver uses a layered, plug-in model to provide 2014 unparalleled flexibility and extensibility in managing 2015 storage. This allows for easy expansion or customization 2016 of various levels of volume management. Requested by 2017 Mark Peloquin (peloquin at us.ibm.com). 2018 2019 Note: EVMS populates and manages all the devnodes in 2020 /dev/evms. 2021 2022 http://sf.net/projects/evms 2023 2024 0 = /dev/evms/block_device EVMS block device 2025 1 = /dev/evms/legacyname1 First EVMS legacy device 2026 2 = /dev/evms/legacyname2 Second EVMS legacy device 2027 ... 2028 Both ranges can grow (down or up) until they meet. 2029 ... 2030 254 = /dev/evms/EVMSname2 Second EVMS native device 2031 255 = /dev/evms/EVMSname1 First EVMS native device 2032 2033 Note: legacyname(s) are derived from the normal legacy 2034 device names. For example, /dev/hda5 would become 2035 /dev/evms/hda5. 2036 2037118 char IBM Cryptographic Accelerator 2038 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators 2039 1 = /dev/ica0 IBMCA Device 0 2040 2 = /dev/ica1 IBMCA Device 1 2041 ... 2042 2043119 char VMware virtual network control 2044 0 = /dev/vnet0 1st virtual network 2045 1 = /dev/vnet1 2nd virtual network 2046 ... 2047 2048120-127 char LOCAL/EXPERIMENTAL USE 2049 2050120-127 block LOCAL/EXPERIMENTAL USE 2051 Allocated for local/experimental use. For devices not 2052 assigned official numbers, these ranges should be 2053 used in order to avoid conflicting with future assignments. 2054 2055128-135 char Unix98 PTY masters 2056 2057 These devices should not have corresponding device 2058 nodes; instead they should be accessed through the 2059 /dev/ptmx cloning interface. 2060 2061128 block SCSI disk devices (128-143) 2062 0 = /dev/sddy 129th SCSI disk whole disk 2063 16 = /dev/sddz 130th SCSI disk whole disk 2064 32 = /dev/sdea 131th SCSI disk whole disk 2065 ... 2066 240 = /dev/sden 144th SCSI disk whole disk 2067 2068 Partitions are handled in the same way as for IDE 2069 disks (see major number 3) except that the limit on 2070 partitions is 15. 2071 2072129 block SCSI disk devices (144-159) 2073 0 = /dev/sdeo 145th SCSI disk whole disk 2074 16 = /dev/sdep 146th SCSI disk whole disk 2075 32 = /dev/sdeq 147th SCSI disk whole disk 2076 ... 2077 240 = /dev/sdfd 160th SCSI disk whole disk 2078 2079 Partitions are handled in the same way as for IDE 2080 disks (see major number 3) except that the limit on 2081 partitions is 15. 2082 2083130 char (Misc devices) 2084 2085130 block SCSI disk devices (160-175) 2086 0 = /dev/sdfe 161st SCSI disk whole disk 2087 16 = /dev/sdff 162nd SCSI disk whole disk 2088 32 = /dev/sdfg 163rd SCSI disk whole disk 2089 ... 2090 240 = /dev/sdft 176th SCSI disk whole disk 2091 2092 Partitions are handled in the same way as for IDE 2093 disks (see major number 3) except that the limit on 2094 partitions is 15. 2095 2096131 block SCSI disk devices (176-191) 2097 0 = /dev/sdfu 177th SCSI disk whole disk 2098 16 = /dev/sdfv 178th SCSI disk whole disk 2099 32 = /dev/sdfw 179th SCSI disk whole disk 2100 ... 2101 240 = /dev/sdgj 192nd SCSI disk whole disk 2102 2103 Partitions are handled in the same way as for IDE 2104 disks (see major number 3) except that the limit on 2105 partitions is 15. 2106 2107132 block SCSI disk devices (192-207) 2108 0 = /dev/sdgk 193rd SCSI disk whole disk 2109 16 = /dev/sdgl 194th SCSI disk whole disk 2110 32 = /dev/sdgm 195th SCSI disk whole disk 2111 ... 2112 240 = /dev/sdgz 208th SCSI disk whole disk 2113 2114 Partitions are handled in the same way as for IDE 2115 disks (see major number 3) except that the limit on 2116 partitions is 15. 2117 2118133 block SCSI disk devices (208-223) 2119 0 = /dev/sdha 209th SCSI disk whole disk 2120 16 = /dev/sdhb 210th SCSI disk whole disk 2121 32 = /dev/sdhc 211th SCSI disk whole disk 2122 ... 2123 240 = /dev/sdhp 224th SCSI disk whole disk 2124 2125 Partitions are handled in the same way as for IDE 2126 disks (see major number 3) except that the limit on 2127 partitions is 15. 2128 2129134 block SCSI disk devices (224-239) 2130 0 = /dev/sdhq 225th SCSI disk whole disk 2131 16 = /dev/sdhr 226th SCSI disk whole disk 2132 32 = /dev/sdhs 227th SCSI disk whole disk 2133 ... 2134 240 = /dev/sdif 240th SCSI disk whole disk 2135 2136 Partitions are handled in the same way as for IDE 2137 disks (see major number 3) except that the limit on 2138 partitions is 15. 2139 2140135 block SCSI disk devices (240-255) 2141 0 = /dev/sdig 241st SCSI disk whole disk 2142 16 = /dev/sdih 242nd SCSI disk whole disk 2143 32 = /dev/sdih 243rd SCSI disk whole disk 2144 ... 2145 240 = /dev/sdiv 256th SCSI disk whole disk 2146 2147 Partitions are handled in the same way as for IDE 2148 disks (see major number 3) except that the limit on 2149 partitions is 15. 2150 2151136-143 char Unix98 PTY slaves 2152 0 = /dev/pts/0 First Unix98 pseudo-TTY 2153 1 = /dev/pts/1 Second Unix98 pseudo-TTY 2154 ... 2155 2156 These device nodes are automatically generated with 2157 the proper permissions and modes by mounting the 2158 devpts filesystem onto /dev/pts with the appropriate 2159 mount options (distribution dependent, however, on 2160 *most* distributions the appropriate options are 2161 "mode=0620,gid=<gid of the "tty" group>".) 2162 2163136 block Mylex DAC960 PCI RAID controller; ninth controller 2164 0 = /dev/rd/c8d0 First disk, whole disk 2165 8 = /dev/rd/c8d1 Second disk, whole disk 2166 ... 2167 248 = /dev/rd/c8d31 32nd disk, whole disk 2168 2169 Partitions are handled as for major 48. 2170 2171137 block Mylex DAC960 PCI RAID controller; tenth controller 2172 0 = /dev/rd/c9d0 First disk, whole disk 2173 8 = /dev/rd/c9d1 Second disk, whole disk 2174 ... 2175 248 = /dev/rd/c9d31 32nd disk, whole disk 2176 2177 Partitions are handled as for major 48. 2178 2179138 block Mylex DAC960 PCI RAID controller; eleventh controller 2180 0 = /dev/rd/c10d0 First disk, whole disk 2181 8 = /dev/rd/c10d1 Second disk, whole disk 2182 ... 2183 248 = /dev/rd/c10d31 32nd disk, whole disk 2184 2185 Partitions are handled as for major 48. 2186 2187139 block Mylex DAC960 PCI RAID controller; twelfth controller 2188 0 = /dev/rd/c11d0 First disk, whole disk 2189 8 = /dev/rd/c11d1 Second disk, whole disk 2190 ... 2191 248 = /dev/rd/c11d31 32nd disk, whole disk 2192 2193 Partitions are handled as for major 48. 2194 2195140 block Mylex DAC960 PCI RAID controller; thirteenth controller 2196 0 = /dev/rd/c12d0 First disk, whole disk 2197 8 = /dev/rd/c12d1 Second disk, whole disk 2198 ... 2199 248 = /dev/rd/c12d31 32nd disk, whole disk 2200 2201 Partitions are handled as for major 48. 2202 2203141 block Mylex DAC960 PCI RAID controller; fourteenth controller 2204 0 = /dev/rd/c13d0 First disk, whole disk 2205 8 = /dev/rd/c13d1 Second disk, whole disk 2206 ... 2207 248 = /dev/rd/c13d31 32nd disk, whole disk 2208 2209 Partitions are handled as for major 48. 2210 2211142 block Mylex DAC960 PCI RAID controller; fifteenth controller 2212 0 = /dev/rd/c14d0 First disk, whole disk 2213 8 = /dev/rd/c14d1 Second disk, whole disk 2214 ... 2215 248 = /dev/rd/c14d31 32nd disk, whole disk 2216 2217 Partitions are handled as for major 48. 2218 2219143 block Mylex DAC960 PCI RAID controller; sixteenth controller 2220 0 = /dev/rd/c15d0 First disk, whole disk 2221 8 = /dev/rd/c15d1 Second disk, whole disk 2222 ... 2223 248 = /dev/rd/c15d31 32nd disk, whole disk 2224 2225 Partitions are handled as for major 48. 2226 2227144 char Encapsulated PPP 2228 0 = /dev/pppox0 First PPP over Ethernet 2229 ... 2230 63 = /dev/pppox63 64th PPP over Ethernet 2231 2232 This is primarily used for ADSL. 2233 2234 The SST 5136-DN DeviceNet interface driver has been 2235 relocated to major 183 due to an unfortunate conflict. 2236 2237144 block Expansion Area #1 for more non-device (e.g. NFS) mounts 2238 0 = mounted device 256 2239 255 = mounted device 511 2240 2241145 char SAM9407-based soundcard 2242 0 = /dev/sam0_mixer 2243 1 = /dev/sam0_sequencer 2244 2 = /dev/sam0_midi00 2245 3 = /dev/sam0_dsp 2246 4 = /dev/sam0_audio 2247 6 = /dev/sam0_sndstat 2248 18 = /dev/sam0_midi01 2249 34 = /dev/sam0_midi02 2250 50 = /dev/sam0_midi03 2251 64 = /dev/sam1_mixer 2252 ... 2253 128 = /dev/sam2_mixer 2254 ... 2255 192 = /dev/sam3_mixer 2256 ... 2257 2258 Device functions match OSS, but offer a number of 2259 addons, which are sam9407 specific. OSS can be 2260 operated simultaneously, taking care of the codec. 2261 2262145 block Expansion Area #2 for more non-device (e.g. NFS) mounts 2263 0 = mounted device 512 2264 255 = mounted device 767 2265 2266146 char SYSTRAM SCRAMNet mirrored-memory network 2267 0 = /dev/scramnet0 First SCRAMNet device 2268 1 = /dev/scramnet1 Second SCRAMNet device 2269 ... 2270 2271146 block Expansion Area #3 for more non-device (e.g. NFS) mounts 2272 0 = mounted device 768 2273 255 = mounted device 1023 2274 2275147 char Aureal Semiconductor Vortex Audio device 2276 0 = /dev/aureal0 First Aureal Vortex 2277 1 = /dev/aureal1 Second Aureal Vortex 2278 ... 2279 2280147 block Distributed Replicated Block Device (DRBD) 2281 0 = /dev/drbd0 First DRBD device 2282 1 = /dev/drbd1 Second DRBD device 2283 ... 2284 2285148 char Technology Concepts serial card 2286 0 = /dev/ttyT0 First TCL port 2287 1 = /dev/ttyT1 Second TCL port 2288 ... 2289 2290149 char Technology Concepts serial card - alternate devices 2291 0 = /dev/cut0 Callout device for ttyT0 2292 1 = /dev/cut0 Callout device for ttyT1 2293 ... 2294 2295150 char Real-Time Linux FIFOs 2296 0 = /dev/rtf0 First RTLinux FIFO 2297 1 = /dev/rtf1 Second RTLinux FIFO 2298 ... 2299 2300151 char DPT I2O SmartRaid V controller 2301 0 = /dev/dpti0 First DPT I2O adapter 2302 1 = /dev/dpti1 Second DPT I2O adapter 2303 ... 2304 2305152 char EtherDrive Control Device 2306 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive 2307 1 = /dev/etherd/err Monitor errors 2308 2 = /dev/etherd/raw Raw AoE packet monitor 2309 2310152 block EtherDrive Block Devices 2311 0 = /dev/etherd/0 EtherDrive 0 2312 ... 2313 255 = /dev/etherd/255 EtherDrive 255 2314 2315153 char SPI Bus Interface (sometimes referred to as MicroWire) 2316 0 = /dev/spi0 First SPI device on the bus 2317 1 = /dev/spi1 Second SPI device on the bus 2318 ... 2319 15 = /dev/spi15 Sixteenth SPI device on the bus 2320 2321153 block Enhanced Metadisk RAID (EMD) storage units 2322 0 = /dev/emd/0 First unit 2323 1 = /dev/emd/0p1 Partition 1 on First unit 2324 2 = /dev/emd/0p2 Partition 2 on First unit 2325 ... 2326 15 = /dev/emd/0p15 Partition 15 on First unit 2327 2328 16 = /dev/emd/1 Second unit 2329 32 = /dev/emd/2 Third unit 2330 ... 2331 240 = /dev/emd/15 Sixteenth unit 2332 2333 Partitions are handled in the same way as for IDE 2334 disks (see major number 3) except that the limit on 2335 partitions is 15. 2336 2337154 char Specialix RIO serial card 2338 0 = /dev/ttySR0 First RIO port 2339 ... 2340 255 = /dev/ttySR255 256th RIO port 2341 2342155 char Specialix RIO serial card - alternate devices 2343 0 = /dev/cusr0 Callout device for ttySR0 2344 ... 2345 255 = /dev/cusr255 Callout device for ttySR255 2346 2347156 char Specialix RIO serial card 2348 0 = /dev/ttySR256 257th RIO port 2349 ... 2350 255 = /dev/ttySR511 512th RIO port 2351 2352157 char Specialix RIO serial card - alternate devices 2353 0 = /dev/cusr256 Callout device for ttySR256 2354 ... 2355 255 = /dev/cusr511 Callout device for ttySR511 2356 2357158 char Dialogic GammaLink fax driver 2358 0 = /dev/gfax0 GammaLink channel 0 2359 1 = /dev/gfax1 GammaLink channel 1 2360 ... 2361 2362159 char RESERVED 2363 2364159 block RESERVED 2365 2366160 char General Purpose Instrument Bus (GPIB) 2367 0 = /dev/gpib0 First GPIB bus 2368 1 = /dev/gpib1 Second GPIB bus 2369 ... 2370 2371160 block Carmel 8-port SATA Disks on First Controller 2372 0 = /dev/carmel/0 SATA disk 0 whole disk 2373 1 = /dev/carmel/0p1 SATA disk 0 partition 1 2374 ... 2375 31 = /dev/carmel/0p31 SATA disk 0 partition 31 2376 2377 32 = /dev/carmel/1 SATA disk 1 whole disk 2378 64 = /dev/carmel/2 SATA disk 2 whole disk 2379 ... 2380 224 = /dev/carmel/7 SATA disk 7 whole disk 2381 2382 Partitions are handled in the same way as for IDE 2383 disks (see major number 3) except that the limit on 2384 partitions is 31. 2385 2386161 char IrCOMM devices (IrDA serial/parallel emulation) 2387 0 = /dev/ircomm0 First IrCOMM device 2388 1 = /dev/ircomm1 Second IrCOMM device 2389 ... 2390 16 = /dev/irlpt0 First IrLPT device 2391 17 = /dev/irlpt1 Second IrLPT device 2392 ... 2393 2394161 block Carmel 8-port SATA Disks on Second Controller 2395 0 = /dev/carmel/8 SATA disk 8 whole disk 2396 1 = /dev/carmel/8p1 SATA disk 8 partition 1 2397 ... 2398 31 = /dev/carmel/8p31 SATA disk 8 partition 31 2399 2400 32 = /dev/carmel/9 SATA disk 9 whole disk 2401 64 = /dev/carmel/10 SATA disk 10 whole disk 2402 ... 2403 224 = /dev/carmel/15 SATA disk 15 whole disk 2404 2405 Partitions are handled in the same way as for IDE 2406 disks (see major number 3) except that the limit on 2407 partitions is 31. 2408 2409162 char Raw block device interface 2410 0 = /dev/rawctl Raw I/O control device 2411 1 = /dev/raw/raw1 First raw I/O device 2412 2 = /dev/raw/raw2 Second raw I/O device 2413 ... 2414 max minor number of raw device is set by kernel config 2415 MAX_RAW_DEVS or raw module parameter 'max_raw_devs' 2416 2417163 char 2418 2419164 char Chase Research AT/PCI-Fast serial card 2420 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0 2421 ... 2422 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15 2423 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0 2424 ... 2425 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15 2426 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0 2427 ... 2428 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15 2429 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0 2430 ... 2431 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15 2432 2433165 char Chase Research AT/PCI-Fast serial card - alternate devices 2434 0 = /dev/cuch0 Callout device for ttyCH0 2435 ... 2436 63 = /dev/cuch63 Callout device for ttyCH63 2437 2438166 char ACM USB modems 2439 0 = /dev/ttyACM0 First ACM modem 2440 1 = /dev/ttyACM1 Second ACM modem 2441 ... 2442 2443167 char ACM USB modems - alternate devices 2444 0 = /dev/cuacm0 Callout device for ttyACM0 2445 1 = /dev/cuacm1 Callout device for ttyACM1 2446 ... 2447 2448168 char Eracom CSA7000 PCI encryption adaptor 2449 0 = /dev/ecsa0 First CSA7000 2450 1 = /dev/ecsa1 Second CSA7000 2451 ... 2452 2453169 char Eracom CSA8000 PCI encryption adaptor 2454 0 = /dev/ecsa8-0 First CSA8000 2455 1 = /dev/ecsa8-1 Second CSA8000 2456 ... 2457 2458170 char AMI MegaRAC remote access controller 2459 0 = /dev/megarac0 First MegaRAC card 2460 1 = /dev/megarac1 Second MegaRAC card 2461 ... 2462 2463171 char Reserved for IEEE 1394 (Firewire) 2464 2465172 char Moxa Intellio serial card 2466 0 = /dev/ttyMX0 First Moxa port 2467 1 = /dev/ttyMX1 Second Moxa port 2468 ... 2469 127 = /dev/ttyMX127 128th Moxa port 2470 128 = /dev/moxactl Moxa control port 2471 2472173 char Moxa Intellio serial card - alternate devices 2473 0 = /dev/cumx0 Callout device for ttyMX0 2474 1 = /dev/cumx1 Callout device for ttyMX1 2475 ... 2476 127 = /dev/cumx127 Callout device for ttyMX127 2477 2478174 char SmartIO serial card 2479 0 = /dev/ttySI0 First SmartIO port 2480 1 = /dev/ttySI1 Second SmartIO port 2481 ... 2482 2483175 char SmartIO serial card - alternate devices 2484 0 = /dev/cusi0 Callout device for ttySI0 2485 1 = /dev/cusi1 Callout device for ttySI1 2486 ... 2487 2488176 char nCipher nFast PCI crypto accelerator 2489 0 = /dev/nfastpci0 First nFast PCI device 2490 1 = /dev/nfastpci1 First nFast PCI device 2491 ... 2492 2493177 char TI PCILynx memory spaces 2494 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card 2495 ... 2496 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card 2497 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card 2498 ... 2499 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card 2500 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card 2501 ... 2502 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card 2503 2504178 char Giganet cLAN1xxx virtual interface adapter 2505 0 = /dev/clanvi0 First cLAN adapter 2506 1 = /dev/clanvi1 Second cLAN adapter 2507 ... 2508 2509179 block MMC block devices 2510 0 = /dev/mmcblk0 First SD/MMC card 2511 1 = /dev/mmcblk0p1 First partition on first MMC card 2512 8 = /dev/mmcblk1 Second SD/MMC card 2513 ... 2514 2515 The start of next SD/MMC card can be configured with 2516 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe 2517 time using the mmcblk.perdev_minors option. That would 2518 bump the offset between each card to be the configured 2519 value instead of the default 8. 2520 2521179 char CCube DVXChip-based PCI products 2522 0 = /dev/dvxirq0 First DVX device 2523 1 = /dev/dvxirq1 Second DVX device 2524 ... 2525 2526180 char USB devices 2527 0 = /dev/usb/lp0 First USB printer 2528 ... 2529 15 = /dev/usb/lp15 16th USB printer 2530 48 = /dev/usb/scanner0 First USB scanner 2531 ... 2532 63 = /dev/usb/scanner15 16th USB scanner 2533 64 = /dev/usb/rio500 Diamond Rio 500 2534 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de) 2535 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD) 2536 96 = /dev/usb/hiddev0 1st USB HID device 2537 ... 2538 111 = /dev/usb/hiddev15 16th USB HID device 2539 112 = /dev/usb/auer0 1st auerswald ISDN device 2540 ... 2541 127 = /dev/usb/auer15 16th auerswald ISDN device 2542 128 = /dev/usb/brlvgr0 First Braille Voyager device 2543 ... 2544 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device 2545 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device 2546 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device 2547 ... 2548 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device 2549 144 = /dev/usb/lcd USB LCD device 2550 160 = /dev/usb/legousbtower0 1st USB Legotower device 2551 ... 2552 175 = /dev/usb/legousbtower15 16th USB Legotower device 2553 176 = /dev/usb/usbtmc1 First USB TMC device 2554 ... 2555 191 = /dev/usb/usbtmc16 16th USB TMC device 2556 192 = /dev/usb/yurex1 First USB Yurex device 2557 ... 2558 209 = /dev/usb/yurex16 16th USB Yurex device 2559 2560180 block USB block devices 2561 0 = /dev/uba First USB block device 2562 8 = /dev/ubb Second USB block device 2563 16 = /dev/ubc Third USB block device 2564 ... 2565 2566181 char Conrad Electronic parallel port radio clocks 2567 0 = /dev/pcfclock0 First Conrad radio clock 2568 1 = /dev/pcfclock1 Second Conrad radio clock 2569 ... 2570 2571182 char Picture Elements THR2 binarizer 2572 0 = /dev/pethr0 First THR2 board 2573 1 = /dev/pethr1 Second THR2 board 2574 ... 2575 2576183 char SST 5136-DN DeviceNet interface 2577 0 = /dev/ss5136dn0 First DeviceNet interface 2578 1 = /dev/ss5136dn1 Second DeviceNet interface 2579 ... 2580 2581 This device used to be assigned to major number 144. 2582 It had to be moved due to an unfortunate conflict. 2583 2584184 char Picture Elements' video simulator/sender 2585 0 = /dev/pevss0 First sender board 2586 1 = /dev/pevss1 Second sender board 2587 ... 2588 2589185 char InterMezzo high availability file system 2590 0 = /dev/intermezzo0 First cache manager 2591 1 = /dev/intermezzo1 Second cache manager 2592 ... 2593 2594 See http://web.archive.org/web/20080115195241/ 2595 http://inter-mezzo.org/index.html 2596 2597186 char Object-based storage control device 2598 0 = /dev/obd0 First obd control device 2599 1 = /dev/obd1 Second obd control device 2600 ... 2601 2602 See ftp://ftp.lustre.org/pub/obd for code and information. 2603 2604187 char DESkey hardware encryption device 2605 0 = /dev/deskey0 First DES key 2606 1 = /dev/deskey1 Second DES key 2607 ... 2608 2609188 char USB serial converters 2610 0 = /dev/ttyUSB0 First USB serial converter 2611 1 = /dev/ttyUSB1 Second USB serial converter 2612 ... 2613 2614189 char USB serial converters - alternate devices 2615 0 = /dev/cuusb0 Callout device for ttyUSB0 2616 1 = /dev/cuusb1 Callout device for ttyUSB1 2617 ... 2618 2619190 char Kansas City tracker/tuner card 2620 0 = /dev/kctt0 First KCT/T card 2621 1 = /dev/kctt1 Second KCT/T card 2622 ... 2623 2624191 char Reserved for PCMCIA 2625 2626192 char Kernel profiling interface 2627 0 = /dev/profile Profiling control device 2628 1 = /dev/profile0 Profiling device for CPU 0 2629 2 = /dev/profile1 Profiling device for CPU 1 2630 ... 2631 2632193 char Kernel event-tracing interface 2633 0 = /dev/trace Tracing control device 2634 1 = /dev/trace0 Tracing device for CPU 0 2635 2 = /dev/trace1 Tracing device for CPU 1 2636 ... 2637 2638194 char linVideoStreams (LINVS) 2639 0 = /dev/mvideo/status0 Video compression status 2640 1 = /dev/mvideo/stream0 Video stream 2641 2 = /dev/mvideo/frame0 Single compressed frame 2642 3 = /dev/mvideo/rawframe0 Raw uncompressed frame 2643 4 = /dev/mvideo/codec0 Direct codec access 2644 5 = /dev/mvideo/video4linux0 Video4Linux compatibility 2645 2646 16 = /dev/mvideo/status1 Second device 2647 ... 2648 32 = /dev/mvideo/status2 Third device 2649 ... 2650 ... 2651 240 = /dev/mvideo/status15 16th device 2652 ... 2653 2654195 char Nvidia graphics devices 2655 0 = /dev/nvidia0 First Nvidia card 2656 1 = /dev/nvidia1 Second Nvidia card 2657 ... 2658 255 = /dev/nvidiactl Nvidia card control device 2659 2660196 char Tormenta T1 card 2661 0 = /dev/tor/0 Master control channel for all cards 2662 1 = /dev/tor/1 First DS0 2663 2 = /dev/tor/2 Second DS0 2664 ... 2665 48 = /dev/tor/48 48th DS0 2666 49 = /dev/tor/49 First pseudo-channel 2667 50 = /dev/tor/50 Second pseudo-channel 2668 ... 2669 2670197 char OpenTNF tracing facility 2671 0 = /dev/tnf/t0 Trace 0 data extraction 2672 1 = /dev/tnf/t1 Trace 1 data extraction 2673 ... 2674 128 = /dev/tnf/status Tracing facility status 2675 130 = /dev/tnf/trace Tracing device 2676 2677198 char Total Impact TPMP2 quad coprocessor PCI card 2678 0 = /dev/tpmp2/0 First card 2679 1 = /dev/tpmp2/1 Second card 2680 ... 2681 2682199 char Veritas volume manager (VxVM) volumes 2683 0 = /dev/vx/rdsk/*/* First volume 2684 1 = /dev/vx/rdsk/*/* Second volume 2685 ... 2686 2687199 block Veritas volume manager (VxVM) volumes 2688 0 = /dev/vx/dsk/*/* First volume 2689 1 = /dev/vx/dsk/*/* Second volume 2690 ... 2691 2692 The namespace in these directories is maintained by 2693 the user space VxVM software. 2694 2695200 char Veritas VxVM configuration interface 2696 0 = /dev/vx/config Configuration access node 2697 1 = /dev/vx/trace Volume i/o trace access node 2698 2 = /dev/vx/iod Volume i/o daemon access node 2699 3 = /dev/vx/info Volume information access node 2700 4 = /dev/vx/task Volume tasks access node 2701 5 = /dev/vx/taskmon Volume tasks monitor daemon 2702 2703201 char Veritas VxVM dynamic multipathing driver 2704 0 = /dev/vx/rdmp/* First multipath device 2705 1 = /dev/vx/rdmp/* Second multipath device 2706 ... 2707201 block Veritas VxVM dynamic multipathing driver 2708 0 = /dev/vx/dmp/* First multipath device 2709 1 = /dev/vx/dmp/* Second multipath device 2710 ... 2711 2712 The namespace in these directories is maintained by 2713 the user space VxVM software. 2714 2715202 char CPU model-specific registers 2716 0 = /dev/cpu/0/msr MSRs on CPU 0 2717 1 = /dev/cpu/1/msr MSRs on CPU 1 2718 ... 2719 2720202 block Xen Virtual Block Device 2721 0 = /dev/xvda First Xen VBD whole disk 2722 16 = /dev/xvdb Second Xen VBD whole disk 2723 32 = /dev/xvdc Third Xen VBD whole disk 2724 ... 2725 240 = /dev/xvdp Sixteenth Xen VBD whole disk 2726 2727 Partitions are handled in the same way as for IDE 2728 disks (see major number 3) except that the limit on 2729 partitions is 15. 2730 2731203 char CPU CPUID information 2732 0 = /dev/cpu/0/cpuid CPUID on CPU 0 2733 1 = /dev/cpu/1/cpuid CPUID on CPU 1 2734 ... 2735 2736204 char Low-density serial ports 2737 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0 2738 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1 2739 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2 2740 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3 2741 4 = /dev/ttyFB0 Intel Footbridge (ARM) 2742 5 = /dev/ttySA0 StrongARM builtin serial port 0 2743 6 = /dev/ttySA1 StrongARM builtin serial port 1 2744 7 = /dev/ttySA2 StrongARM builtin serial port 2 2745 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0 2746 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1 2747 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2 2748 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3 2749 12 = /dev/ttyFW0 Firmware console - port 0 2750 13 = /dev/ttyFW1 Firmware console - port 1 2751 14 = /dev/ttyFW2 Firmware console - port 2 2752 15 = /dev/ttyFW3 Firmware console - port 3 2753 16 = /dev/ttyAM0 ARM "AMBA" serial port 0 2754 ... 2755 31 = /dev/ttyAM15 ARM "AMBA" serial port 15 2756 32 = /dev/ttyDB0 DataBooster serial port 0 2757 ... 2758 39 = /dev/ttyDB7 DataBooster serial port 7 2759 40 = /dev/ttySG0 SGI Altix console port 2760 41 = /dev/ttySMX0 Motorola i.MX - port 0 2761 42 = /dev/ttySMX1 Motorola i.MX - port 1 2762 43 = /dev/ttySMX2 Motorola i.MX - port 2 2763 44 = /dev/ttyMM0 Marvell MPSC - port 0 2764 45 = /dev/ttyMM1 Marvell MPSC - port 1 2765 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0 2766 ... 2767 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5 2768 50 = /dev/ttyIOC0 Altix serial card 2769 ... 2770 81 = /dev/ttyIOC31 Altix serial card 2771 82 = /dev/ttyVR0 NEC VR4100 series SIU 2772 83 = /dev/ttyVR1 NEC VR4100 series DSIU 2773 84 = /dev/ttyIOC84 Altix ioc4 serial card 2774 ... 2775 115 = /dev/ttyIOC115 Altix ioc4 serial card 2776 116 = /dev/ttySIOC0 Altix ioc3 serial card 2777 ... 2778 147 = /dev/ttySIOC31 Altix ioc3 serial card 2779 148 = /dev/ttyPSC0 PPC PSC - port 0 2780 ... 2781 153 = /dev/ttyPSC5 PPC PSC - port 5 2782 154 = /dev/ttyAT0 ATMEL serial port 0 2783 ... 2784 169 = /dev/ttyAT15 ATMEL serial port 15 2785 170 = /dev/ttyNX0 Hilscher netX serial port 0 2786 ... 2787 185 = /dev/ttyNX15 Hilscher netX serial port 15 2788 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation 2789 187 = /dev/ttyUL0 Xilinx uartlite - port 0 2790 ... 2791 190 = /dev/ttyUL3 Xilinx uartlite - port 3 2792 191 = /dev/xvc0 Xen virtual console - port 0 2793 192 = /dev/ttyPZ0 pmac_zilog - port 0 2794 ... 2795 195 = /dev/ttyPZ3 pmac_zilog - port 3 2796 196 = /dev/ttyTX0 TX39/49 serial port 0 2797 ... 2798 204 = /dev/ttyTX7 TX39/49 serial port 7 2799 205 = /dev/ttySC0 SC26xx serial port 0 2800 206 = /dev/ttySC1 SC26xx serial port 1 2801 207 = /dev/ttySC2 SC26xx serial port 2 2802 208 = /dev/ttySC3 SC26xx serial port 3 2803 209 = /dev/ttyMAX0 MAX3100 serial port 0 2804 210 = /dev/ttyMAX1 MAX3100 serial port 1 2805 211 = /dev/ttyMAX2 MAX3100 serial port 2 2806 212 = /dev/ttyMAX3 MAX3100 serial port 3 2807 2808205 char Low-density serial ports (alternate device) 2809 0 = /dev/culu0 Callout device for ttyLU0 2810 1 = /dev/culu1 Callout device for ttyLU1 2811 2 = /dev/culu2 Callout device for ttyLU2 2812 3 = /dev/culu3 Callout device for ttyLU3 2813 4 = /dev/cufb0 Callout device for ttyFB0 2814 5 = /dev/cusa0 Callout device for ttySA0 2815 6 = /dev/cusa1 Callout device for ttySA1 2816 7 = /dev/cusa2 Callout device for ttySA2 2817 8 = /dev/cusc0 Callout device for ttySC0 2818 9 = /dev/cusc1 Callout device for ttySC1 2819 10 = /dev/cusc2 Callout device for ttySC2 2820 11 = /dev/cusc3 Callout device for ttySC3 2821 12 = /dev/cufw0 Callout device for ttyFW0 2822 13 = /dev/cufw1 Callout device for ttyFW1 2823 14 = /dev/cufw2 Callout device for ttyFW2 2824 15 = /dev/cufw3 Callout device for ttyFW3 2825 16 = /dev/cuam0 Callout device for ttyAM0 2826 ... 2827 31 = /dev/cuam15 Callout device for ttyAM15 2828 32 = /dev/cudb0 Callout device for ttyDB0 2829 ... 2830 39 = /dev/cudb7 Callout device for ttyDB7 2831 40 = /dev/cusg0 Callout device for ttySG0 2832 41 = /dev/ttycusmx0 Callout device for ttySMX0 2833 42 = /dev/ttycusmx1 Callout device for ttySMX1 2834 43 = /dev/ttycusmx2 Callout device for ttySMX2 2835 46 = /dev/cucpm0 Callout device for ttyCPM0 2836 ... 2837 49 = /dev/cucpm5 Callout device for ttyCPM5 2838 50 = /dev/cuioc40 Callout device for ttyIOC40 2839 ... 2840 81 = /dev/cuioc431 Callout device for ttyIOC431 2841 82 = /dev/cuvr0 Callout device for ttyVR0 2842 83 = /dev/cuvr1 Callout device for ttyVR1 2843 2844206 char OnStream SC-x0 tape devices 2845 0 = /dev/osst0 First OnStream SCSI tape, mode 0 2846 1 = /dev/osst1 Second OnStream SCSI tape, mode 0 2847 ... 2848 32 = /dev/osst0l First OnStream SCSI tape, mode 1 2849 33 = /dev/osst1l Second OnStream SCSI tape, mode 1 2850 ... 2851 64 = /dev/osst0m First OnStream SCSI tape, mode 2 2852 65 = /dev/osst1m Second OnStream SCSI tape, mode 2 2853 ... 2854 96 = /dev/osst0a First OnStream SCSI tape, mode 3 2855 97 = /dev/osst1a Second OnStream SCSI tape, mode 3 2856 ... 2857 128 = /dev/nosst0 No rewind version of /dev/osst0 2858 129 = /dev/nosst1 No rewind version of /dev/osst1 2859 ... 2860 160 = /dev/nosst0l No rewind version of /dev/osst0l 2861 161 = /dev/nosst1l No rewind version of /dev/osst1l 2862 ... 2863 192 = /dev/nosst0m No rewind version of /dev/osst0m 2864 193 = /dev/nosst1m No rewind version of /dev/osst1m 2865 ... 2866 224 = /dev/nosst0a No rewind version of /dev/osst0a 2867 225 = /dev/nosst1a No rewind version of /dev/osst1a 2868 ... 2869 2870 The OnStream SC-x0 SCSI tapes do not support the 2871 standard SCSI SASD command set and therefore need 2872 their own driver "osst". Note that the IDE, USB (and 2873 maybe ParPort) versions may be driven via ide-scsi or 2874 usb-storage SCSI emulation and this osst device and 2875 driver as well. The ADR-x0 drives are QIC-157 2876 compliant and don't need osst. 2877 2878207 char Compaq ProLiant health feature indicate 2879 0 = /dev/cpqhealth/cpqw Redirector interface 2880 1 = /dev/cpqhealth/crom EISA CROM 2881 2 = /dev/cpqhealth/cdt Data Table 2882 3 = /dev/cpqhealth/cevt Event Log 2883 4 = /dev/cpqhealth/casr Automatic Server Recovery 2884 5 = /dev/cpqhealth/cecc ECC Memory 2885 6 = /dev/cpqhealth/cmca Machine Check Architecture 2886 7 = /dev/cpqhealth/ccsm Deprecated CDT 2887 8 = /dev/cpqhealth/cnmi NMI Handling 2888 9 = /dev/cpqhealth/css Sideshow Management 2889 10 = /dev/cpqhealth/cram CMOS interface 2890 11 = /dev/cpqhealth/cpci PCI IRQ interface 2891 2892208 char User space serial ports 2893 0 = /dev/ttyU0 First user space serial port 2894 1 = /dev/ttyU1 Second user space serial port 2895 ... 2896 2897209 char User space serial ports (alternate devices) 2898 0 = /dev/cuu0 Callout device for ttyU0 2899 1 = /dev/cuu1 Callout device for ttyU1 2900 ... 2901 2902210 char SBE, Inc. sync/async serial card 2903 0 = /dev/sbei/wxcfg0 Configuration device for board 0 2904 1 = /dev/sbei/dld0 Download device for board 0 2905 2 = /dev/sbei/wan00 WAN device, port 0, board 0 2906 3 = /dev/sbei/wan01 WAN device, port 1, board 0 2907 4 = /dev/sbei/wan02 WAN device, port 2, board 0 2908 5 = /dev/sbei/wan03 WAN device, port 3, board 0 2909 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0 2910 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0 2911 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0 2912 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0 2913 10 = /dev/sbei/wxcfg1 Configuration device for board 1 2914 11 = /dev/sbei/dld1 Download device for board 1 2915 12 = /dev/sbei/wan10 WAN device, port 0, board 1 2916 13 = /dev/sbei/wan11 WAN device, port 1, board 1 2917 14 = /dev/sbei/wan12 WAN device, port 2, board 1 2918 15 = /dev/sbei/wan13 WAN device, port 3, board 1 2919 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1 2920 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1 2921 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1 2922 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1 2923 ... 2924 2925 Yes, each board is really spaced 10 (decimal) apart. 2926 2927211 char Addinum CPCI1500 digital I/O card 2928 0 = /dev/addinum/cpci1500/0 First CPCI1500 card 2929 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card 2930 ... 2931 2932212 char LinuxTV.org DVB driver subsystem 2933 0 = /dev/dvb/adapter0/video0 first video decoder of first card 2934 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card 2935 2 = /dev/dvb/adapter0/sec0 (obsolete/unused) 2936 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card 2937 4 = /dev/dvb/adapter0/demux0 first demux device of first card 2938 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card 2939 6 = /dev/dvb/adapter0/ca0 first common access port of first card 2940 7 = /dev/dvb/adapter0/net0 first network device of first card 2941 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card 2942 9 = /dev/dvb/adapter0/video1 second video decoder of first card 2943 ... 2944 64 = /dev/dvb/adapter1/video0 first video decoder of second card 2945 ... 2946 128 = /dev/dvb/adapter2/video0 first video decoder of third card 2947 ... 2948 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card 2949 2950216 char Bluetooth RFCOMM TTY devices 2951 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device 2952 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device 2953 ... 2954 2955217 char Bluetooth RFCOMM TTY devices (alternate devices) 2956 0 = /dev/curf0 Callout device for rfcomm0 2957 1 = /dev/curf1 Callout device for rfcomm1 2958 ... 2959 2960218 char The Logical Company bus Unibus/Qbus adapters 2961 0 = /dev/logicalco/bci/0 First bus adapter 2962 1 = /dev/logicalco/bci/1 First bus adapter 2963 ... 2964 2965219 char The Logical Company DCI-1300 digital I/O card 2966 0 = /dev/logicalco/dci1300/0 First DCI-1300 card 2967 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card 2968 ... 2969 2970220 char Myricom Myrinet "GM" board 2971 0 = /dev/myricom/gm0 First Myrinet GM board 2972 1 = /dev/myricom/gmp0 First board "root access" 2973 2 = /dev/myricom/gm1 Second Myrinet GM board 2974 3 = /dev/myricom/gmp1 Second board "root access" 2975 ... 2976 2977221 char VME bus 2978 0 = /dev/bus/vme/m0 First master image 2979 1 = /dev/bus/vme/m1 Second master image 2980 2 = /dev/bus/vme/m2 Third master image 2981 3 = /dev/bus/vme/m3 Fourth master image 2982 4 = /dev/bus/vme/s0 First slave image 2983 5 = /dev/bus/vme/s1 Second slave image 2984 6 = /dev/bus/vme/s2 Third slave image 2985 7 = /dev/bus/vme/s3 Fourth slave image 2986 8 = /dev/bus/vme/ctl Control 2987 2988 It is expected that all VME bus drivers will use the 2989 same interface. For interface documentation see 2990 http://www.vmelinux.org/. 2991 2992224 char A2232 serial card 2993 0 = /dev/ttyY0 First A2232 port 2994 1 = /dev/ttyY1 Second A2232 port 2995 ... 2996 2997225 char A2232 serial card (alternate devices) 2998 0 = /dev/cuy0 Callout device for ttyY0 2999 1 = /dev/cuy1 Callout device for ttyY1 3000 ...
3001 3002226 char Direct Rendering Infrastructure (DRI) 3003 0 = /dev/dri/card0 First graphics card 3004 1 = /dev/dri/card1 Second graphics card 3005 ... 3006 3007227 char IBM 3270 terminal Unix tty access 3008 1 = /dev/3270/tty1 First 3270 terminal 3009 2 = /dev/3270/tty2 Seconds 3270 terminal 3010 ... 3011 3012228 char IBM 3270 terminal block-mode access 3013 0 = /dev/3270/tub Controlling interface 3014 1 = /dev/3270/tub1 First 3270 terminal 3015 2 = /dev/3270/tub2 Second 3270 terminal 3016 ... 3017 3018229 char IBM iSeries/pSeries virtual console 3019 0 = /dev/hvc0 First console port 3020 1 = /dev/hvc1 Second console port 3021 ... 3022 3023230 char IBM iSeries virtual tape 3024 0 = /dev/iseries/vt0 First virtual tape, mode 0 3025 1 = /dev/iseries/vt1 Second virtual tape, mode 0 3026 ... 3027 32 = /dev/iseries/vt0l First virtual tape, mode 1 3028 33 = /dev/iseries/vt1l Second virtual tape, mode 1 3029 ... 3030 64 = /dev/iseries/vt0m First virtual tape, mode 2 3031 65 = /dev/iseries/vt1m Second virtual tape, mode 2 3032 ... 3033 96 = /dev/iseries/vt0a First virtual tape, mode 3 3034 97 = /dev/iseries/vt1a Second virtual tape, mode 3 3035 ... 3036 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind 3037 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind 3038 ... 3039 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind 3040 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind 3041 ... 3042 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind 3043 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind 3044 ... 3045 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind 3046 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind 3047 ... 3048 3049 "No rewind" refers to the omission of the default 3050 automatic rewind on device close. The MTREW or MTOFFL 3051 ioctl()'s can be used to rewind the tape regardless of 3052 the device used to access it. 3053 3054231 char InfiniBand 3055 0 = /dev/infiniband/umad0 3056 1 = /dev/infiniband/umad1 3057 ... 3058 63 = /dev/infiniband/umad63 63rd InfiniBandMad device 3059 64 = /dev/infiniband/issm0 First InfiniBand IsSM device 3060 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device 3061 ... 3062 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device 3063 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device 3064 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device 3065 ... 3066 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device 3067 3068232 char Biometric Devices 3069 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device 3070 1 = /dev/biometric/sensor0/iris first iris sensor on first device 3071 2 = /dev/biometric/sensor0/retina first retina sensor on first device 3072 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device 3073 4 = /dev/biometric/sensor0/facial first facial sensor on first device 3074 5 = /dev/biometric/sensor0/hand first hand sensor on first device 3075 ... 3076 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device 3077 ... 3078 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device 3079 ... 3080 3081233 char PathScale InfiniPath interconnect 3082 0 = /dev/ipath Primary device for programs (any unit) 3083 1 = /dev/ipath0 Access specifically to unit 0 3084 2 = /dev/ipath1 Access specifically to unit 1 3085 ... 3086 4 = /dev/ipath3 Access specifically to unit 3 3087 129 = /dev/ipath_sma Device used by Subnet Management Agent 3088 130 = /dev/ipath_diag Device used by diagnostics programs 3089 3090234-239 UNASSIGNED 3091 3092240-254 char LOCAL/EXPERIMENTAL USE 3093 3094240-254 block LOCAL/EXPERIMENTAL USE 3095 Allocated for local/experimental use. For devices not 3096 assigned official numbers, these ranges should be 3097 used in order to avoid conflicting with future assignments. 3098 3099255 char RESERVED 3100 3101255 block RESERVED 3102 3103 This major is reserved to assist the expansion to a 3104 larger number space. No device nodes with this major 3105 should ever be created on the filesystem. 3106 (This is probably not true anymore, but I'll leave it 3107 for now /Torben) 3108 3109---LARGE MAJORS!!!!!--- 3110 3111256 char Equinox SST multi-port serial boards 3112 0 = /dev/ttyEQ0 First serial port on first Equinox SST board 3113 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board 3114 128 = /dev/ttyEQ128 First serial port on second Equinox SST board 3115 ... 3116 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board 3117 3118256 block Resident Flash Disk Flash Translation Layer 3119 0 = /dev/rfda First RFD FTL layer 3120 16 = /dev/rfdb Second RFD FTL layer 3121 ... 3122 240 = /dev/rfdp 16th RFD FTL layer 3123 3124257 char Phoenix Technologies Cryptographic Services Driver 3125 0 = /dev/ptlsec Crypto Services Driver 3126 3127257 block SSFDC Flash Translation Layer filesystem 3128 0 = /dev/ssfdca First SSFDC layer 3129 8 = /dev/ssfdcb Second SSFDC layer 3130 16 = /dev/ssfdcc Third SSFDC layer 3131 24 = /dev/ssfdcd 4th SSFDC layer 3132 32 = /dev/ssfdce 5th SSFDC layer 3133 40 = /dev/ssfdcf 6th SSFDC layer 3134 48 = /dev/ssfdcg 7th SSFDC layer 3135 56 = /dev/ssfdch 8th SSFDC layer 3136 3137258 block ROM/Flash read-only translation layer 3138 0 = /dev/blockrom0 First ROM card's translation layer interface 3139 1 = /dev/blockrom1 Second ROM card's translation layer interface 3140 ... 3141 3142259 block Block Extended Major 3143 Used dynamically to hold additional partition minor 3144 numbers and allow large numbers of partitions per device 3145 3146259 char FPGA configuration interfaces 3147 0 = /dev/icap0 First Xilinx internal configuration 3148 1 = /dev/icap1 Second Xilinx internal configuration 3149 3150260 char OSD (Object-based-device) SCSI Device 3151 0 = /dev/osd0 First OSD Device 3152 1 = /dev/osd1 Second OSD Device 3153 ... 3154 255 = /dev/osd255 256th OSD Device 3155 3156 **** ADDITIONAL /dev DIRECTORY ENTRIES 3157 3158This section details additional entries that should or may exist in 3159the /dev directory. It is preferred that symbolic links use the same 3160form (absolute or relative) as is indicated here. Links are 3161classified as "hard" or "symbolic" depending on the preferred type of 3162link; if possible, the indicated type of link should be used. 3163 3164 3165 Compulsory links 3166 3167These links should exist on all systems: 3168 3169/dev/fd /proc/self/fd symbolic File descriptors 3170/dev/stdin fd/0 symbolic stdin file descriptor 3171/dev/stdout fd/1 symbolic stdout file descriptor 3172/dev/stderr fd/2 symbolic stderr file descriptor 3173/dev/nfsd socksys symbolic Required by iBCS-2 3174/dev/X0R null symbolic Required by iBCS-2 3175 3176Note: /dev/X0R is <letter X>-<digit 0>-<letter R>. 3177 3178 Recommended links 3179 3180It is recommended that these links exist on all systems: 3181 3182/dev/core /proc/kcore symbolic Backward compatibility 3183/dev/ramdisk ram0 symbolic Backward compatibility 3184/dev/ftape qft0 symbolic Backward compatibility 3185/dev/bttv0 video0 symbolic Backward compatibility 3186/dev/radio radio0 symbolic Backward compatibility 3187/dev/i2o* /dev/i2o/* symbolic Backward compatibility 3188/dev/scd? sr? hard Alternate SCSI CD-ROM name 3189 3190 Locally defined links 3191 3192The following links may be established locally to conform to the 3193configuration of the system. This is merely a tabulation of existing 3194practice, and does not constitute a recommendation. However, if they 3195exist, they should have the following uses. 3196 3197/dev/mouse mouse port symbolic Current mouse device 3198/dev/tape tape device symbolic Current tape device 3199/dev/cdrom CD-ROM device symbolic Current CD-ROM device 3200/dev/cdwriter CD-writer symbolic Current CD-writer device 3201/dev/scanner scanner symbolic Current scanner device 3202/dev/modem modem port symbolic Current dialout device 3203/dev/root root device symbolic Current root filesystem 3204/dev/swap swap device symbolic Current swap device 3205 3206/dev/modem should not be used for a modem which supports dialin as 3207well as dialout, as it tends to cause lock file problems. If it 3208exists, /dev/modem should point to the appropriate primary TTY device 3209(the use of the alternate callout devices is deprecated). 3210 3211For SCSI devices, /dev/tape and /dev/cdrom should point to the 3212``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas 3213/dev/cdwriter and /dev/scanner should point to the appropriate generic 3214SCSI devices (/dev/sg*). 3215 3216/dev/mouse may point to a primary serial TTY device, a hardware mouse 3217device, or a socket for a mouse driver program (e.g. /dev/gpmdata). 3218 3219 Sockets and pipes 3220 3221Non-transient sockets and named pipes may exist in /dev. Common entries are: 3222 3223/dev/printer socket lpd local socket 3224/dev/log socket syslog local socket 3225/dev/gpmdata socket gpm mouse multiplexer 3226 3227 Mount points 3228 3229The following names are reserved for mounting special filesystems 3230under /dev. These special filesystems provide kernel interfaces that 3231cannot be provided with standard device nodes. 3232 3233/dev/pts devpts PTY slave filesystem 3234/dev/shm tmpfs POSIX shared memory maintenance access 3235 3236 **** TERMINAL DEVICES 3237 3238Terminal, or TTY devices are a special class of character devices. A 3239terminal device is any device that could act as a controlling terminal 3240for a session; this includes virtual consoles, serial ports, and 3241pseudoterminals (PTYs). 3242 3243All terminal devices share a common set of capabilities known as line 3244disciplines; these include the common terminal line discipline as well 3245as SLIP and PPP modes. 3246 3247All terminal devices are named similarly; this section explains the 3248naming and use of the various types of TTYs. Note that the naming 3249conventions include several historical warts; some of these are 3250Linux-specific, some were inherited from other systems, and some 3251reflect Linux outgrowing a borrowed convention. 3252 3253A hash mark (#) in a device name is used here to indicate a decimal 3254number without leading zeroes. 3255 3256 Virtual consoles and the console device 3257 3258Virtual consoles are full-screen terminal displays on the system video 3259monitor. Virtual consoles are named /dev/tty#, with numbering 3260starting at /dev/tty1; /dev/tty0 is the current virtual console. 3261/dev/tty0 is the device that should be used to access the system video 3262card on those architectures for which the frame buffer devices 3263(/dev/fb*) are not applicable. Do not use /dev/console 3264for this purpose. 3265 3266The console device, /dev/console, is the device to which system 3267messages should be sent, and on which logins should be permitted in 3268single-user mode. Starting with Linux 2.1.71, /dev/console is managed 3269by the kernel; for previous versions it should be a symbolic link to 3270either /dev/tty0, a specific virtual console such as /dev/tty1, or to 3271a serial port primary (tty*, not cu*) device, depending on the 3272configuration of the system. 3273 3274 Serial ports 3275 3276Serial ports are RS-232 serial ports and any device which simulates 3277one, either in hardware (such as internal modems) or in software (such 3278as the ISDN driver.) Under Linux, each serial ports has two device 3279names, the primary or callin device and the alternate or callout one. 3280Each kind of device is indicated by a different letter. For any 3281letter X, the names of the devices are /dev/ttyX# and /dev/cux#, 3282respectively; for historical reasons, /dev/ttyS# and /dev/ttyC# 3283correspond to /dev/cua# and /dev/cub#. In the future, it should be 3284expected that multiple letters will be used; all letters will be upper 3285case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the 3286"cu" device (e.g. /dev/cudp#). 3287 3288The names /dev/ttyQ# and /dev/cuq# are reserved for local use. 3289 3290The alternate devices provide for kernel-based exclusion and somewhat 3291different defaults than the primary devices. Their main purpose is to 3292allow the use of serial ports with programs with no inherent or broken 3293support for serial ports. Their use is deprecated, and they may be 3294removed from a future version of Linux. 3295 3296Arbitration of serial ports is provided by the use of lock files with 3297the names /var/lock/LCK..ttyX#. The contents of the lock file should 3298be the PID of the locking process as an ASCII number. 3299 3300It is common practice to install links such as /dev/modem 3301which point to serial ports. In order to ensure proper locking in the 3302presence of these links, it is recommended that software chase 3303symlinks and lock all possible names; additionally, it is recommended 3304that a lock file be installed with the corresponding alternate 3305device. In order to avoid deadlocks, it is recommended that the locks 3306are acquired in the following order, and released in the reverse: 3307 3308 1. The symbolic link name, if any (/var/lock/LCK..modem) 3309 2. The "tty" name (/var/lock/LCK..ttyS2) 3310 3. The alternate device name (/var/lock/LCK..cua2) 3311 3312In the case of nested symbolic links, the lock files should be 3313installed in the order the symlinks are resolved. 3314 3315Under no circumstances should an application hold a lock while waiting 3316for another to be released. In addition, applications which attempt 3317to create lock files for the corresponding alternate device names 3318should take into account the possibility of being used on a non-serial 3319port TTY, for which no alternate device would exist. 3320 3321 Pseudoterminals (PTYs) 3322 3323Pseudoterminals, or PTYs, are used to create login sessions or provide 3324other capabilities requiring a TTY line discipline (including SLIP or 3325PPP capability) to arbitrary data-generation processes. Each PTY has 3326a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named 3327/dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by 3328allowing each master side to be opened only once. 3329 3330Once the master side has been opened, the corresponding slave device 3331can be used in the same manner as any TTY device. The master and 3332slave devices are connected by the kernel, generating the equivalent 3333of a bidirectional pipe with TTY capabilities. 3334 3335Recent versions of the Linux kernels and GNU libc contain support for 3336the System V/Unix98 naming scheme for PTYs, which assigns a common 3337device, /dev/ptmx, to all the masters (opening it will automatically 3338give you a previously unassigned PTY) and a subdirectory, /dev/pts, 3339for the slaves; the slaves are named with decimal integers (/dev/pts/# 3340in our notation). This removes the problem of exhausting the 3341namespace and enables the kernel to automatically create the device 3342nodes for the slaves on demand using the "devpts" filesystem. 3343 3344