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This version may be 15newer than the one distributed with the Linux kernel. 16 17The LaTeX version of this document is no longer maintained. 18 19This document is included by reference into the Filesystem Hierarchy 20Standard (FHS).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marked (68k/Atari) apply to Linux/68k on 24the Atari platform only. 25 26The symbol {2.6} means the allocation is obsolete and scheduled for 27removal once kernel version 2.6 (or equivalent) is released.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 Used by crashdump kernels to access 104 the memory of the kernel that crashed. 105 106 1 block RAM disk 107 0 = /dev/ram0 First RAM disk 108 1 = /dev/ram1 Second RAM disk 109 ... 110 250 = /dev/initrd Initial RAM disk 111 112 Older kernels had /dev/ramdisk (1, 1) here. 113 /dev/initrd refers to a RAM disk which was preloaded 114 by the boot loader; newer kernels use /dev/ram0 for 115 the initrd. 116 117 2 char Pseudo-TTY masters 118 0 = /dev/ptyp0 First PTY master 119 1 = /dev/ptyp1 Second PTY master 120 ... 121 255 = /dev/ptyef 256th PTY master 122 123 Pseudo-tty's are named as follows: 124 * Masters are "pty", slaves are "tty"; 125 * the fourth letter is one of pqrstuvwxyzabcde indicating 126 the 1st through 16th series of 16 pseudo-ttys each, and 127 * the fifth letter is one of 0123456789abcdef indicating 128 the position within the series. 129 130 These are the old-style (BSD) PTY devices; Unix98 131 devices are on major 128 and above and use the PTY 132 master multiplex (/dev/ptmx) to acquire a PTY on 133 demand. 134 135 2 block Floppy disks 136 0 = /dev/fd0 Controller 0, drive 0, autodetect 137 1 = /dev/fd1 Controller 0, drive 1, autodetect 138 2 = /dev/fd2 Controller 0, drive 2, autodetect 139 3 = /dev/fd3 Controller 0, drive 3, autodetect 140 128 = /dev/fd4 Controller 1, drive 0, autodetect 141 129 = /dev/fd5 Controller 1, drive 1, autodetect 142 130 = /dev/fd6 Controller 1, drive 2, autodetect 143 131 = /dev/fd7 Controller 1, drive 3, autodetect 144 145 To specify format, add to the autodetect device number: 146 0 = /dev/fd? Autodetect format 147 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1) 148 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1) 149 48 = /dev/fd?h410 5.25" 410K in a 1200K drive 150 64 = /dev/fd?h420 5.25" 420K in a 1200K drive 151 24 = /dev/fd?h720 5.25" 720K in a 1200K drive 152 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1) 153 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1) 154 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1) 155 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive 156 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive 157 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1) 158 159 12 = /dev/fd?u360 3.5" 360K Double Density(2) 160 16 = /dev/fd?u720 3.5" 720K Double Density(1) 161 120 = /dev/fd?u800 3.5" 800K Double Density(2) 162 52 = /dev/fd?u820 3.5" 820K Double Density 163 68 = /dev/fd?u830 3.5" 830K Double Density 164 84 = /dev/fd?u1040 3.5" 1040K Double Density(1) 165 88 = /dev/fd?u1120 3.5" 1120K Double Density(1) 166 28 = /dev/fd?u1440 3.5" 1440K High Density(1) 167 124 = /dev/fd?u1600 3.5" 1600K High Density(1) 168 44 = /dev/fd?u1680 3.5" 1680K High Density(3) 169 60 = /dev/fd?u1722 3.5" 1722K High Density 170 76 = /dev/fd?u1743 3.5" 1743K High Density 171 96 = /dev/fd?u1760 3.5" 1760K High Density 172 116 = /dev/fd?u1840 3.5" 1840K High Density(3) 173 100 = /dev/fd?u1920 3.5" 1920K High Density(1) 174 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1) 175 104 = /dev/fd?u3200 3.5" 3200K Extra Density 176 108 = /dev/fd?u3520 3.5" 3520K Extra Density 177 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1) 178 179 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete? 180 181 (1) Autodetectable format 182 (2) Autodetectable format in a Double Density (720K) drive only 183 (3) Autodetectable format in a High Density (1440K) drive only 184 185 NOTE: The letter in the device name (d, q, h or u) 186 signifies the type of drive: 5.25" Double Density (d), 187 5.25" Quad Density (q), 5.25" High Density (h) or 3.5" 188 (any model, u). The use of the capital letters D, H 189 and E for the 3.5" models have been deprecated, since 190 the drive type is insignificant for these devices. 191 192 3 char Pseudo-TTY slaves 193 0 = /dev/ttyp0 First PTY slave 194 1 = /dev/ttyp1 Second PTY slave 195 ... 196 255 = /dev/ttyef 256th PTY slave 197 198 These are the old-style (BSD) PTY devices; Unix98 199 devices are on major 136 and above. 200 201 3 block First MFM, RLL and IDE hard disk/CD-ROM interface 202 0 = /dev/hda Master: whole disk (or CD-ROM) 203 64 = /dev/hdb Slave: whole disk (or CD-ROM) 204 205 For partitions, add to the whole disk device number: 206 0 = /dev/hd? Whole disk 207 1 = /dev/hd?1 First partition 208 2 = /dev/hd?2 Second partition 209 ... 210 63 = /dev/hd?63 63rd partition 211 212 For Linux/i386, partitions 1-4 are the primary 213 partitions, and 5 and above are logical partitions. 214 Other versions of Linux use partitioning schemes 215 appropriate to their respective architectures. 216 217 4 char TTY devices 218 0 = /dev/tty0 Current virtual console 219 220 1 = /dev/tty1 First virtual console 221 ... 222 63 = /dev/tty63 63rd virtual console 223 64 = /dev/ttyS0 First UART serial port 224 ... 225 255 = /dev/ttyS191 192nd UART serial port 226 227 UART serial ports refer to 8250/16450/16550 series devices. 228 229 Older versions of the Linux kernel used this major 230 number for BSD PTY devices. As of Linux 2.1.115, this 231 is no longer supported. Use major numbers 2 and 3. 232 233 4 block Aliases for dynamically allocated major devices to be used 234 when its not possible to create the real device nodes 235 because the root filesystem is mounted read-only. 236 237 0 = /dev/root 238 239 5 char Alternate TTY devices 240 0 = /dev/tty Current TTY device 241 1 = /dev/console System console 242 2 = /dev/ptmx PTY master multiplex 243 3 = /dev/ttyprintk User messages via printk TTY device 244 64 = /dev/cua0 Callout device for ttyS0 245 ... 246 255 = /dev/cua191 Callout device for ttyS191 247 248 (5,1) is /dev/console starting with Linux 2.1.71. See 249 the section on terminal devices for more information 250 on /dev/console. 251 252 6 char Parallel printer devices 253 0 = /dev/lp0 Parallel printer on parport0 254 1 = /dev/lp1 Parallel printer on parport1 255 ... 256 257 Current Linux kernels no longer have a fixed mapping 258 between parallel ports and I/O addresses. Instead, 259 they are redirected through the parport multiplex layer. 260 261 7 char Virtual console capture devices 262 0 = /dev/vcs Current vc text contents 263 1 = /dev/vcs1 tty1 text contents 264 ... 265 63 = /dev/vcs63 tty63 text contents 266 128 = /dev/vcsa Current vc text/attribute contents 267 129 = /dev/vcsa1 tty1 text/attribute contents 268 ... 269 191 = /dev/vcsa63 tty63 text/attribute contents 270 271 NOTE: These devices permit both read and write access. 272 273 7 block Loopback devices 274 0 = /dev/loop0 First loop device 275 1 = /dev/loop1 Second loop device 276 ... 277 278 The loop devices are used to mount filesystems not 279 associated with block devices. The binding to the 280 loop devices is handled by mount(8) or losetup(8). 281 282 8 block SCSI disk devices (0-15) 283 0 = /dev/sda First SCSI disk whole disk 284 16 = /dev/sdb Second SCSI disk whole disk 285 32 = /dev/sdc Third SCSI disk whole disk 286 ... 287 240 = /dev/sdp Sixteenth SCSI disk whole disk 288 289 Partitions are handled in the same way as for IDE 290 disks (see major number 3) except that the limit on 291 partitions is 15. 292 293 9 char SCSI tape devices 294 0 = /dev/st0 First SCSI tape, mode 0 295 1 = /dev/st1 Second SCSI tape, mode 0 296 ... 297 32 = /dev/st0l First SCSI tape, mode 1 298 33 = /dev/st1l Second SCSI tape, mode 1 299 ... 300 64 = /dev/st0m First SCSI tape, mode 2 301 65 = /dev/st1m Second SCSI tape, mode 2 302 ... 303 96 = /dev/st0a First SCSI tape, mode 3 304 97 = /dev/st1a Second SCSI tape, mode 3 305 ... 306 128 = /dev/nst0 First SCSI tape, mode 0, no rewind 307 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind 308 ... 309 160 = /dev/nst0l First SCSI tape, mode 1, no rewind 310 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind 311 ... 312 192 = /dev/nst0m First SCSI tape, mode 2, no rewind 313 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind 314 ... 315 224 = /dev/nst0a First SCSI tape, mode 3, no rewind 316 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind 317 ... 318 319 "No rewind" refers to the omission of the default 320 automatic rewind on device close. The MTREW or MTOFFL 321 ioctl()'s can be used to rewind the tape regardless of 322 the device used to access it. 323 324 9 block Metadisk (RAID) devices 325 0 = /dev/md0 First metadisk group 326 1 = /dev/md1 Second metadisk group 327 ... 328 329 The metadisk driver is used to span a 330 filesystem across multiple physical disks. 331 332 10 char Non-serial mice, misc features 333 0 = /dev/logibm Logitech bus mouse 334 1 = /dev/psaux PS/2-style mouse port 335 2 = /dev/inportbm Microsoft Inport bus mouse 336 3 = /dev/atibm ATI XL bus mouse 337 4 = /dev/jbm J-mouse 338 4 = /dev/amigamouse Amiga mouse (68k/Amiga) 339 5 = /dev/atarimouse Atari mouse 340 6 = /dev/sunmouse Sun mouse 341 7 = /dev/amigamouse1 Second Amiga mouse 342 8 = /dev/smouse Simple serial mouse driver 343 9 = /dev/pc110pad IBM PC-110 digitizer pad 344 10 = /dev/adbmouse Apple Desktop Bus mouse 345 11 = /dev/vrtpanel Vr41xx embedded touch panel 346 13 = /dev/vpcmouse Connectix Virtual PC Mouse 347 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen 348 15 = /dev/touchscreen/mk712 MK712 touchscreen 349 128 = /dev/beep Fancy beep device 350 129 = 351 130 = /dev/watchdog Watchdog timer port 352 131 = /dev/temperature Machine internal temperature 353 132 = /dev/hwtrap Hardware fault trap 354 133 = /dev/exttrp External device trap 355 134 = /dev/apm_bios Advanced Power Management BIOS 356 135 = /dev/rtc Real Time Clock 357 139 = /dev/openprom SPARC OpenBoot PROM 358 140 = /dev/relay8 Berkshire Products Octal relay card 359 141 = /dev/relay16 Berkshire Products ISO-16 relay card 360 142 = 361 143 = /dev/pciconf PCI configuration space 362 144 = /dev/nvram Non-volatile configuration RAM 363 145 = /dev/hfmodem Soundcard shortwave modem control 364 146 = /dev/graphics Linux/SGI graphics device 365 147 = /dev/opengl Linux/SGI OpenGL pipe 366 148 = /dev/gfx Linux/SGI graphics effects device 367 149 = /dev/input/mouse Linux/SGI Irix emulation mouse 368 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard 369 151 = /dev/led Front panel LEDs 370 152 = /dev/kpoll Kernel Poll Driver 371 153 = /dev/mergemem Memory merge device 372 154 = /dev/pmu Macintosh PowerBook power manager 373 155 = /dev/isictl MultiTech ISICom serial control 374 156 = /dev/lcd Front panel LCD display 375 157 = /dev/ac Applicom Intl Profibus card 376 158 = /dev/nwbutton Netwinder external button 377 159 = /dev/nwdebug Netwinder debug interface 378 160 = /dev/nwflash Netwinder flash memory 379 161 = /dev/userdma User-space DMA access 380 162 = /dev/smbus System Management Bus 381 163 = /dev/lik Logitech Internet Keyboard 382 164 = /dev/ipmo Intel Intelligent Platform Management 383 165 = /dev/vmmon VMware virtual machine monitor 384 166 = /dev/i2o/ctl I2O configuration manager 385 167 = /dev/specialix_sxctl Specialix serial control 386 168 = /dev/tcldrv Technology Concepts serial control 387 169 = /dev/specialix_rioctl Specialix RIO serial control 388 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices 389 171 = /dev/srripc QNX4 API IPC manager 390 172 = /dev/usemaclone Semaphore clone device 391 173 = /dev/ipmikcs Intelligent Platform Management 392 174 = /dev/uctrl SPARCbook 3 microcontroller 393 175 = /dev/agpgart AGP Graphics Address Remapping Table 394 176 = /dev/gtrsc Gorgy Timing radio clock 395 177 = /dev/cbm Serial CBM bus 396 178 = /dev/jsflash JavaStation OS flash SIMM 397 179 = /dev/xsvc High-speed shared-mem/semaphore service 398 180 = /dev/vrbuttons Vr41xx button input device 399 181 = /dev/toshiba Toshiba laptop SMM support 400 182 = /dev/perfctr Performance-monitoring counters 401 183 = /dev/hwrng Generic random number generator 402 184 = /dev/cpu/microcode CPU microcode update interface 403 186 = /dev/atomicps Atomic shapshot of process state data 404 187 = /dev/irnet IrNET device 405 188 = /dev/smbusbios SMBus BIOS 406 189 = /dev/ussp_ctl User space serial port control 407 190 = /dev/crash Mission Critical Linux crash dump facility 408 191 = /dev/pcl181 <information missing> 409 192 = /dev/nas_xbus NAS xbus LCD/buttons access 410 193 = /dev/d7s SPARC 7-segment display 411 194 = /dev/zkshim Zero-Knowledge network shim control 412 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201 413 198 = /dev/sexec Signed executable interface 414 199 = /dev/scanners/cuecat :CueCat barcode scanner 415 200 = /dev/net/tun TAP/TUN network device 416 201 = /dev/button/gulpb Transmeta GULP-B buttons 417 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control 418 204 = /dev/video/em8300 EM8300 DVD decoder control 419 205 = /dev/video/em8300_mv EM8300 DVD decoder video 420 206 = /dev/video/em8300_ma EM8300 DVD decoder audio 421 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture 422 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller 423 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver 424 210 = /dev/impi/bt IMPI coprocessor block transfer 425 211 = /dev/impi/smic IMPI coprocessor stream interface 426 212 = /dev/watchdogs/0 First watchdog device 427 213 = /dev/watchdogs/1 Second watchdog device 428 214 = /dev/watchdogs/2 Third watchdog device 429 215 = /dev/watchdogs/3 Fourth watchdog device 430 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel 431 217 = /dev/ni/natmotn National Instruments Motion 432 218 = /dev/kchuid Inter-process chuid control 433 219 = /dev/modems/mwave MWave modem firmware upload 434 220 = /dev/mptctl Message passing technology (MPT) control 435 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver 436 222 = /dev/mvista/hasi Montavista PICMG high availability 437 223 = /dev/input/uinput User level driver support for input 438 224 = /dev/tpm TCPA TPM driver 439 225 = /dev/pps Pulse Per Second driver 440 226 = /dev/systrace Systrace device 441 227 = /dev/mcelog X86_64 Machine Check Exception driver 442 228 = /dev/hpet HPET driver 443 229 = /dev/fuse Fuse (virtual filesystem in user-space) 444 230 = /dev/midishare MidiShare driver 445 231 = /dev/snapshot System memory snapshot device 446 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions) 447 233 = /dev/kmview View-OS A process with a view 448 234 = /dev/btrfs-control Btrfs control device 449 235 = /dev/autofs Autofs control device 450 236 = /dev/mapper/control Device-Mapper control device 451 237 = /dev/loop-control Loopback control device 452 238 = /dev/vhost-net Host kernel accelerator for virtio net 453 454 240-254 Reserved for local use 455 255 Reserved for MISC_DYNAMIC_MINOR 456 457 11 char Raw keyboard device (Linux/SPARC only) 458 0 = /dev/kbd Raw keyboard device 459 460 11 char Serial Mux device (Linux/PA-RISC only) 461 0 = /dev/ttyB0 First mux port 462 1 = /dev/ttyB1 Second mux port 463 ... 464 465 11 block SCSI CD-ROM devices 466 0 = /dev/scd0 First SCSI CD-ROM 467 1 = /dev/scd1 Second SCSI CD-ROM 468 ... 469 470 The prefix /dev/sr (instead of /dev/scd) has been deprecated. 471 472 12 char QIC-02 tape 473 2 = /dev/ntpqic11 QIC-11, no rewind-on-close 474 3 = /dev/tpqic11 QIC-11, rewind-on-close 475 4 = /dev/ntpqic24 QIC-24, no rewind-on-close 476 5 = /dev/tpqic24 QIC-24, rewind-on-close 477 6 = /dev/ntpqic120 QIC-120, no rewind-on-close 478 7 = /dev/tpqic120 QIC-120, rewind-on-close 479 8 = /dev/ntpqic150 QIC-150, no rewind-on-close 480 9 = /dev/tpqic150 QIC-150, rewind-on-close 481 482 The device names specified are proposed -- if there 483 are "standard" names for these devices, please let me know. 484 485 12 block 486 487 13 char Input core 488 0 = /dev/input/js0 First joystick 489 1 = /dev/input/js1 Second joystick 490 ... 491 32 = /dev/input/mouse0 First mouse 492 33 = /dev/input/mouse1 Second mouse 493 ... 494 63 = /dev/input/mice Unified mouse 495 64 = /dev/input/event0 First event queue 496 65 = /dev/input/event1 Second event queue 497 ... 498 499 Each device type has 5 bits (32 minors). 500 501 13 block Previously used for the XT disk (/dev/xdN) 502 Deleted in kernel v3.9. 503 504 14 char Open Sound System (OSS) 505 0 = /dev/mixer Mixer control 506 1 = /dev/sequencer Audio sequencer 507 2 = /dev/midi00 First MIDI port 508 3 = /dev/dsp Digital audio 509 4 = /dev/audio Sun-compatible digital audio 510 6 = 511 7 = /dev/audioctl SPARC audio control device 512 8 = /dev/sequencer2 Sequencer -- alternate device 513 16 = /dev/mixer1 Second soundcard mixer control 514 17 = /dev/patmgr0 Sequencer patch manager 515 18 = /dev/midi01 Second MIDI port 516 19 = /dev/dsp1 Second soundcard digital audio 517 20 = /dev/audio1 Second soundcard Sun digital audio 518 33 = /dev/patmgr1 Sequencer patch manager 519 34 = /dev/midi02 Third MIDI port 520 50 = /dev/midi03 Fourth MIDI port 521 522 14 block 523 524 15 char Joystick 525 0 = /dev/js0 First analog joystick 526 1 = /dev/js1 Second analog joystick 527 ... 528 128 = /dev/djs0 First digital joystick 529 129 = /dev/djs1 Second digital joystick 530 ... 531 15 block Sony CDU-31A/CDU-33A CD-ROM 532 0 = /dev/sonycd Sony CDU-31a CD-ROM 533 534 16 char Non-SCSI scanners 535 0 = /dev/gs4500 Genius 4500 handheld scanner 536 537 16 block GoldStar CD-ROM 538 0 = /dev/gscd GoldStar CD-ROM 539 540 17 char OBSOLETE (was Chase serial card) 541 0 = /dev/ttyH0 First Chase port 542 1 = /dev/ttyH1 Second Chase port 543 ... 544 17 block Optics Storage CD-ROM 545 0 = /dev/optcd Optics Storage CD-ROM 546 547 18 char OBSOLETE (was Chase serial card - alternate devices) 548 0 = /dev/cuh0 Callout device for ttyH0 549 1 = /dev/cuh1 Callout device for ttyH1 550 ... 551 18 block Sanyo CD-ROM 552 0 = /dev/sjcd Sanyo CD-ROM 553 554 19 char Cyclades serial card 555 0 = /dev/ttyC0 First Cyclades port 556 ... 557 31 = /dev/ttyC31 32nd Cyclades port 558 559 19 block "Double" compressed disk 560 0 = /dev/double0 First compressed disk 561 ... 562 7 = /dev/double7 Eighth compressed disk 563 128 = /dev/cdouble0 Mirror of first compressed disk 564 ... 565 135 = /dev/cdouble7 Mirror of eighth compressed disk 566 567 See the Double documentation for the meaning of the 568 mirror devices. 569 570 20 char Cyclades serial card - alternate devices 571 0 = /dev/cub0 Callout device for ttyC0 572 ... 573 31 = /dev/cub31 Callout device for ttyC31 574 575 20 block Hitachi CD-ROM (under development) 576 0 = /dev/hitcd Hitachi CD-ROM 577 578 21 char Generic SCSI access 579 0 = /dev/sg0 First generic SCSI device 580 1 = /dev/sg1 Second generic SCSI device 581 ... 582 583 Most distributions name these /dev/sga, /dev/sgb...; 584 this sets an unnecessary limit of 26 SCSI devices in 585 the system and is counter to standard Linux 586 device-naming practice. 587 588 21 block Acorn MFM hard drive interface 589 0 = /dev/mfma First MFM drive whole disk 590 64 = /dev/mfmb Second MFM drive whole disk 591 592 This device is used on the ARM-based Acorn RiscPC. 593 Partitions are handled the same way as for IDE disks 594 (see major number 3). 595 596 22 char Digiboard serial card 597 0 = /dev/ttyD0 First Digiboard port 598 1 = /dev/ttyD1 Second Digiboard port 599 ... 600 22 block Second IDE hard disk/CD-ROM interface 601 0 = /dev/hdc Master: whole disk (or CD-ROM) 602 64 = /dev/hdd Slave: whole disk (or CD-ROM) 603 604 Partitions are handled the same way as for the first 605 interface (see major number 3). 606 607 23 char Digiboard serial card - alternate devices 608 0 = /dev/cud0 Callout device for ttyD0 609 1 = /dev/cud1 Callout device for ttyD1 610 ... 611 23 block Mitsumi proprietary CD-ROM 612 0 = /dev/mcd Mitsumi CD-ROM 613 614 24 char Stallion serial card 615 0 = /dev/ttyE0 Stallion port 0 card 0 616 1 = /dev/ttyE1 Stallion port 1 card 0 617 ... 618 64 = /dev/ttyE64 Stallion port 0 card 1 619 65 = /dev/ttyE65 Stallion port 1 card 1 620 ... 621 128 = /dev/ttyE128 Stallion port 0 card 2 622 129 = /dev/ttyE129 Stallion port 1 card 2 623 ... 624 192 = /dev/ttyE192 Stallion port 0 card 3 625 193 = /dev/ttyE193 Stallion port 1 card 3 626 ... 627 24 block Sony CDU-535 CD-ROM 628 0 = /dev/cdu535 Sony CDU-535 CD-ROM 629 630 25 char Stallion serial card - alternate devices 631 0 = /dev/cue0 Callout device for ttyE0 632 1 = /dev/cue1 Callout device for ttyE1 633 ... 634 64 = /dev/cue64 Callout device for ttyE64 635 65 = /dev/cue65 Callout device for ttyE65 636 ... 637 128 = /dev/cue128 Callout device for ttyE128 638 129 = /dev/cue129 Callout device for ttyE129 639 ... 640 192 = /dev/cue192 Callout device for ttyE192 641 193 = /dev/cue193 Callout device for ttyE193 642 ... 643 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM 644 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0 645 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1 646 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2 647 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3 648 649 26 char 650 651 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM 652 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0 653 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1 654 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2 655 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3 656 657 27 char QIC-117 tape 658 0 = /dev/qft0 Unit 0, rewind-on-close 659 1 = /dev/qft1 Unit 1, rewind-on-close 660 2 = /dev/qft2 Unit 2, rewind-on-close 661 3 = /dev/qft3 Unit 3, rewind-on-close 662 4 = /dev/nqft0 Unit 0, no rewind-on-close 663 5 = /dev/nqft1 Unit 1, no rewind-on-close 664 6 = /dev/nqft2 Unit 2, no rewind-on-close 665 7 = /dev/nqft3 Unit 3, no rewind-on-close 666 16 = /dev/zqft0 Unit 0, rewind-on-close, compression 667 17 = /dev/zqft1 Unit 1, rewind-on-close, compression 668 18 = /dev/zqft2 Unit 2, rewind-on-close, compression 669 19 = /dev/zqft3 Unit 3, rewind-on-close, compression 670 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression 671 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression 672 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression 673 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression 674 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks 675 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks 676 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks 677 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks 678 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks 679 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks 680 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks 681 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks 682 683 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM 684 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0 685 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1 686 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2 687 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3 688 689 28 char Stallion serial card - card programming 690 0 = /dev/staliomem0 First Stallion card I/O memory 691 1 = /dev/staliomem1 Second Stallion card I/O memory 692 2 = /dev/staliomem2 Third Stallion card I/O memory 693 3 = /dev/staliomem3 Fourth Stallion card I/O memory 694 695 28 char Atari SLM ACSI laser printer (68k/Atari) 696 0 = /dev/slm0 First SLM laser printer 697 1 = /dev/slm1 Second SLM laser printer 698 ... 699 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM 700 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0 701 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1 702 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2 703 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3 704 705 28 block ACSI disk (68k/Atari) 706 0 = /dev/ada First ACSI disk whole disk 707 16 = /dev/adb Second ACSI disk whole disk 708 32 = /dev/adc Third ACSI disk whole disk 709 ... 710 240 = /dev/adp 16th ACSI disk whole disk 711 712 Partitions are handled in the same way as for IDE 713 disks (see major number 3) except that the limit on 714 partitions is 15, like SCSI. 715 716 29 char Universal frame buffer 717 0 = /dev/fb0 First frame buffer 718 1 = /dev/fb1 Second frame buffer 719 ... 720 31 = /dev/fb31 32nd frame buffer 721 722 29 block Aztech/Orchid/Okano/Wearnes CD-ROM 723 0 = /dev/aztcd Aztech CD-ROM 724 725 30 char iBCS-2 compatibility devices 726 0 = /dev/socksys Socket access 727 1 = /dev/spx SVR3 local X interface 728 32 = /dev/inet/ip Network access 729 33 = /dev/inet/icmp 730 34 = /dev/inet/ggp 731 35 = /dev/inet/ipip 732 36 = /dev/inet/tcp 733 37 = /dev/inet/egp 734 38 = /dev/inet/pup 735 39 = /dev/inet/udp 736 40 = /dev/inet/idp 737 41 = /dev/inet/rawip 738 739 Additionally, iBCS-2 requires the following links: 740 741 /dev/ip -> /dev/inet/ip 742 /dev/icmp -> /dev/inet/icmp 743 /dev/ggp -> /dev/inet/ggp 744 /dev/ipip -> /dev/inet/ipip 745 /dev/tcp -> /dev/inet/tcp 746 /dev/egp -> /dev/inet/egp 747 /dev/pup -> /dev/inet/pup 748 /dev/udp -> /dev/inet/udp 749 /dev/idp -> /dev/inet/idp 750 /dev/rawip -> /dev/inet/rawip 751 /dev/inet/arp -> /dev/inet/udp 752 /dev/inet/rip -> /dev/inet/udp 753 /dev/nfsd -> /dev/socksys 754 /dev/X0R -> /dev/null (? apparently not required ?) 755 756 30 block Philips LMS CM-205 CD-ROM 757 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM 758 759 /dev/lmscd is an older name for this device. This 760 driver does not work with the CM-205MS CD-ROM. 761 762 31 char MPU-401 MIDI 763 0 = /dev/mpu401data MPU-401 data port 764 1 = /dev/mpu401stat MPU-401 status port 765 766 31 block ROM/flash memory card 767 0 = /dev/rom0 First ROM card (rw) 768 ... 769 7 = /dev/rom7 Eighth ROM card (rw) 770 8 = /dev/rrom0 First ROM card (ro) 771 ... 772 15 = /dev/rrom7 Eighth ROM card (ro) 773 16 = /dev/flash0 First flash memory card (rw) 774 ... 775 23 = /dev/flash7 Eighth flash memory card (rw) 776 24 = /dev/rflash0 First flash memory card (ro) 777 ... 778 31 = /dev/rflash7 Eighth flash memory card (ro) 779 780 The read-write (rw) devices support back-caching 781 written data in RAM, as well as writing to flash RAM 782 devices. The read-only devices (ro) support reading 783 only. 784 785 32 char Specialix serial card 786 0 = /dev/ttyX0 First Specialix port 787 1 = /dev/ttyX1 Second Specialix port 788 ... 789 32 block Philips LMS CM-206 CD-ROM 790 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM 791 792 33 char Specialix serial card - alternate devices 793 0 = /dev/cux0 Callout device for ttyX0 794 1 = /dev/cux1 Callout device for ttyX1 795 ... 796 33 block Third IDE hard disk/CD-ROM interface 797 0 = /dev/hde Master: whole disk (or CD-ROM) 798 64 = /dev/hdf Slave: whole disk (or CD-ROM) 799 800 Partitions are handled the same way as for the first 801 interface (see major number 3). 802 803 34 char Z8530 HDLC driver 804 0 = /dev/scc0 First Z8530, first port 805 1 = /dev/scc1 First Z8530, second port 806 2 = /dev/scc2 Second Z8530, first port 807 3 = /dev/scc3 Second Z8530, second port 808 ... 809 810 In a previous version these devices were named 811 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so 812 on. 813 814 34 block Fourth IDE hard disk/CD-ROM interface 815 0 = /dev/hdg Master: whole disk (or CD-ROM) 816 64 = /dev/hdh Slave: whole disk (or CD-ROM) 817 818 Partitions are handled the same way as for the first 819 interface (see major number 3). 820 821 35 char tclmidi MIDI driver 822 0 = /dev/midi0 First MIDI port, kernel timed 823 1 = /dev/midi1 Second MIDI port, kernel timed 824 2 = /dev/midi2 Third MIDI port, kernel timed 825 3 = /dev/midi3 Fourth MIDI port, kernel timed 826 64 = /dev/rmidi0 First MIDI port, untimed 827 65 = /dev/rmidi1 Second MIDI port, untimed 828 66 = /dev/rmidi2 Third MIDI port, untimed 829 67 = /dev/rmidi3 Fourth MIDI port, untimed 830 128 = /dev/smpte0 First MIDI port, SMPTE timed 831 129 = /dev/smpte1 Second MIDI port, SMPTE timed 832 130 = /dev/smpte2 Third MIDI port, SMPTE timed 833 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed 834 835 35 block Slow memory ramdisk 836 0 = /dev/slram Slow memory ramdisk 837 838 36 char Netlink support 839 0 = /dev/route Routing, device updates, kernel to user 840 1 = /dev/skip enSKIP security cache control 841 3 = /dev/fwmonitor Firewall packet copies 842 16 = /dev/tap0 First Ethertap device 843 ... 844 31 = /dev/tap15 16th Ethertap device 845 846 36 block OBSOLETE (was MCA ESDI hard disk) 847 848 37 char IDE tape 849 0 = /dev/ht0 First IDE tape 850 1 = /dev/ht1 Second IDE tape 851 ... 852 128 = /dev/nht0 First IDE tape, no rewind-on-close 853 129 = /dev/nht1 Second IDE tape, no rewind-on-close 854 ... 855 856 Currently, only one IDE tape drive is supported. 857 858 37 block Zorro II ramdisk 859 0 = /dev/z2ram Zorro II ramdisk 860 861 38 char Myricom PCI Myrinet board 862 0 = /dev/mlanai0 First Myrinet board 863 1 = /dev/mlanai1 Second Myrinet board 864 ... 865 866 This device is used for status query, board control 867 and "user level packet I/O." This board is also 868 accessible as a standard networking "eth" device. 869 870 38 block OBSOLETE (was Linux/AP+) 871 872 39 char ML-16P experimental I/O board 873 0 = /dev/ml16pa-a0 First card, first analog channel 874 1 = /dev/ml16pa-a1 First card, second analog channel 875 ... 876 15 = /dev/ml16pa-a15 First card, 16th analog channel 877 16 = /dev/ml16pa-d First card, digital lines 878 17 = /dev/ml16pa-c0 First card, first counter/timer 879 18 = /dev/ml16pa-c1 First card, second counter/timer 880 19 = /dev/ml16pa-c2 First card, third counter/timer 881 32 = /dev/ml16pb-a0 Second card, first analog channel 882 33 = /dev/ml16pb-a1 Second card, second analog channel 883 ... 884 47 = /dev/ml16pb-a15 Second card, 16th analog channel 885 48 = /dev/ml16pb-d Second card, digital lines 886 49 = /dev/ml16pb-c0 Second card, first counter/timer 887 50 = /dev/ml16pb-c1 Second card, second counter/timer 888 51 = /dev/ml16pb-c2 Second card, third counter/timer 889 ... 890 39 block 891 892 40 char 893 894 40 block 895 896 41 char Yet Another Micro Monitor 897 0 = /dev/yamm Yet Another Micro Monitor 898 899 41 block 900 901 42 char Demo/sample use 902 903 42 block Demo/sample use 904 905 This number is intended for use in sample code, as 906 well as a general "example" device number. It 907 should never be used for a device driver that is being 908 distributed; either obtain an official number or use 909 the local/experimental range. The sudden addition or 910 removal of a driver with this number should not cause 911 ill effects to the system (bugs excepted.) 912 913 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A 914 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT. 915 916 43 char isdn4linux virtual modem 917 0 = /dev/ttyI0 First virtual modem 918 ... 919 63 = /dev/ttyI63 64th virtual modem 920 921 43 block Network block devices 922 0 = /dev/nb0 First network block device 923 1 = /dev/nb1 Second network block device 924 ... 925 926 Network Block Device is somehow similar to loopback 927 devices: If you read from it, it sends packet across 928 network asking server for data. If you write to it, it 929 sends packet telling server to write. It could be used 930 to mounting filesystems over the net, swapping over 931 the net, implementing block device in userland etc. 932 933 44 char isdn4linux virtual modem - alternate devices 934 0 = /dev/cui0 Callout device for ttyI0 935 ... 936 63 = /dev/cui63 Callout device for ttyI63 937 938 44 block Flash Translation Layer (FTL) filesystems 939 0 = /dev/ftla FTL on first Memory Technology Device 940 16 = /dev/ftlb FTL on second Memory Technology Device 941 32 = /dev/ftlc FTL on third Memory Technology Device 942 ... 943 240 = /dev/ftlp FTL on 16th Memory Technology Device 944 945 Partitions are handled in the same way as for IDE 946 disks (see major number 3) except that the partition 947 limit is 15 rather than 63 per disk (same as SCSI.) 948 949 45 char isdn4linux ISDN BRI driver 950 0 = /dev/isdn0 First virtual B channel raw data 951 ... 952 63 = /dev/isdn63 64th virtual B channel raw data 953 64 = /dev/isdnctrl0 First channel control/debug 954 ... 955 127 = /dev/isdnctrl63 64th channel control/debug 956 957 128 = /dev/ippp0 First SyncPPP device 958 ... 959 191 = /dev/ippp63 64th SyncPPP device 960 961 255 = /dev/isdninfo ISDN monitor interface 962 963 45 block Parallel port IDE disk devices 964 0 = /dev/pda First parallel port IDE disk 965 16 = /dev/pdb Second parallel port IDE disk 966 32 = /dev/pdc Third parallel port IDE disk 967 48 = /dev/pdd Fourth parallel port IDE disk 968 969 Partitions are handled in the same way as for IDE 970 disks (see major number 3) except that the partition 971 limit is 15 rather than 63 per disk. 972 973 46 char Comtrol Rocketport serial card 974 0 = /dev/ttyR0 First Rocketport port 975 1 = /dev/ttyR1 Second Rocketport port 976 ... 977 46 block Parallel port ATAPI CD-ROM devices 978 0 = /dev/pcd0 First parallel port ATAPI CD-ROM 979 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM 980 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM 981 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM 982 983 47 char Comtrol Rocketport serial card - alternate devices 984 0 = /dev/cur0 Callout device for ttyR0 985 1 = /dev/cur1 Callout device for ttyR1 986 ... 987 47 block Parallel port ATAPI disk devices 988 0 = /dev/pf0 First parallel port ATAPI disk 989 1 = /dev/pf1 Second parallel port ATAPI disk 990 2 = /dev/pf2 Third parallel port ATAPI disk 991 3 = /dev/pf3 Fourth parallel port ATAPI disk 992 993 This driver is intended for floppy disks and similar 994 devices and hence does not support partitioning. 995 996 48 char SDL RISCom serial card 997 0 = /dev/ttyL0 First RISCom port 998 1 = /dev/ttyL1 Second RISCom port 999 ... 1000 48 block Mylex DAC960 PCI RAID controller; first controller 1001 0 = /dev/rd/c0d0 First disk, whole disk 1002 8 = /dev/rd/c0d1 Second disk, whole disk 1003 ... 1004 248 = /dev/rd/c0d31 32nd disk, whole disk 1005 1006 For partitions add: 1007 0 = /dev/rd/c?d? Whole disk 1008 1 = /dev/rd/c?d?p1 First partition 1009 ... 1010 7 = /dev/rd/c?d?p7 Seventh partition 1011 1012 49 char SDL RISCom serial card - alternate devices 1013 0 = /dev/cul0 Callout device for ttyL0 1014 1 = /dev/cul1 Callout device for ttyL1 1015 ... 1016 49 block Mylex DAC960 PCI RAID controller; second controller 1017 0 = /dev/rd/c1d0 First disk, whole disk 1018 8 = /dev/rd/c1d1 Second disk, whole disk 1019 ... 1020 248 = /dev/rd/c1d31 32nd disk, whole disk 1021 1022 Partitions are handled as for major 48. 1023 1024 50 char Reserved for GLINT 1025 1026 50 block Mylex DAC960 PCI RAID controller; third controller 1027 0 = /dev/rd/c2d0 First disk, whole disk 1028 8 = /dev/rd/c2d1 Second disk, whole disk 1029 ... 1030 248 = /dev/rd/c2d31 32nd disk, whole disk 1031 1032 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem 1033 0 = /dev/bc0 First Baycom radio modem 1034 1 = /dev/bc1 Second Baycom radio modem 1035 ... 1036 51 block Mylex DAC960 PCI RAID controller; fourth controller 1037 0 = /dev/rd/c3d0 First disk, whole disk 1038 8 = /dev/rd/c3d1 Second disk, whole disk 1039 ... 1040 248 = /dev/rd/c3d31 32nd disk, whole disk 1041 1042 Partitions are handled as for major 48. 1043 1044 52 char Spellcaster DataComm/BRI ISDN card 1045 0 = /dev/dcbri0 First DataComm card 1046 1 = /dev/dcbri1 Second DataComm card 1047 2 = /dev/dcbri2 Third DataComm card 1048 3 = /dev/dcbri3 Fourth DataComm card 1049 1050 52 block Mylex DAC960 PCI RAID controller; fifth controller 1051 0 = /dev/rd/c4d0 First disk, whole disk 1052 8 = /dev/rd/c4d1 Second disk, whole disk 1053 ... 1054 248 = /dev/rd/c4d31 32nd disk, whole disk 1055 1056 Partitions are handled as for major 48. 1057 1058 53 char BDM interface for remote debugging MC683xx microcontrollers 1059 0 = /dev/pd_bdm0 PD BDM interface on lp0 1060 1 = /dev/pd_bdm1 PD BDM interface on lp1 1061 2 = /dev/pd_bdm2 PD BDM interface on lp2 1062 4 = /dev/icd_bdm0 ICD BDM interface on lp0 1063 5 = /dev/icd_bdm1 ICD BDM interface on lp1 1064 6 = /dev/icd_bdm2 ICD BDM interface on lp2 1065 1066 This device is used for the interfacing to the MC683xx 1067 microcontrollers via Background Debug Mode by use of a 1068 Parallel Port interface. PD is the Motorola Public 1069 Domain Interface and ICD is the commercial interface 1070 by P&E. 1071 1072 53 block Mylex DAC960 PCI RAID controller; sixth controller 1073 0 = /dev/rd/c5d0 First disk, whole disk 1074 8 = /dev/rd/c5d1 Second disk, whole disk 1075 ... 1076 248 = /dev/rd/c5d31 32nd disk, whole disk 1077 1078 Partitions are handled as for major 48. 1079 1080 54 char Electrocardiognosis Holter serial card 1081 0 = /dev/holter0 First Holter port 1082 1 = /dev/holter1 Second Holter port 1083 2 = /dev/holter2 Third Holter port 1084 1085 A custom serial card used by Electrocardiognosis SRL 1086 <mseritan@ottonel.pub.ro> to transfer data from Holter 1087 24-hour heart monitoring equipment. 1088 1089 54 block Mylex DAC960 PCI RAID controller; seventh controller 1090 0 = /dev/rd/c6d0 First disk, whole disk 1091 8 = /dev/rd/c6d1 Second disk, whole disk 1092 ... 1093 248 = /dev/rd/c6d31 32nd disk, whole disk 1094 1095 Partitions are handled as for major 48. 1096 1097 55 char DSP56001 digital signal processor 1098 0 = /dev/dsp56k First DSP56001 1099 1100 55 block Mylex DAC960 PCI RAID controller; eighth controller 1101 0 = /dev/rd/c7d0 First disk, whole disk 1102 8 = /dev/rd/c7d1 Second disk, whole disk 1103 ... 1104 248 = /dev/rd/c7d31 32nd disk, whole disk 1105 1106 Partitions are handled as for major 48. 1107 1108 56 char Apple Desktop Bus 1109 0 = /dev/adb ADB bus control 1110 1111 Additional devices will be added to this number, all 1112 starting with /dev/adb. 1113 1114 56 block Fifth IDE hard disk/CD-ROM interface 1115 0 = /dev/hdi Master: whole disk (or CD-ROM) 1116 64 = /dev/hdj Slave: whole disk (or CD-ROM) 1117 1118 Partitions are handled the same way as for the first 1119 interface (see major number 3). 1120 1121 57 char Hayes ESP serial card 1122 0 = /dev/ttyP0 First ESP port 1123 1 = /dev/ttyP1 Second ESP port 1124 ... 1125 1126 57 block Sixth IDE hard disk/CD-ROM interface 1127 0 = /dev/hdk Master: whole disk (or CD-ROM) 1128 64 = /dev/hdl Slave: whole disk (or CD-ROM) 1129 1130 Partitions are handled the same way as for the first 1131 interface (see major number 3). 1132 1133 58 char Hayes ESP serial card - alternate devices 1134 0 = /dev/cup0 Callout device for ttyP0 1135 1 = /dev/cup1 Callout device for ttyP1 1136 ... 1137 1138 58 block Reserved for logical volume manager 1139 1140 59 char sf firewall package 1141 0 = /dev/firewall Communication with sf kernel module 1142 1143 59 block Generic PDA filesystem device 1144 0 = /dev/pda0 First PDA device 1145 1 = /dev/pda1 Second PDA device 1146 ... 1147 1148 The pda devices are used to mount filesystems on 1149 remote pda's (basically slow handheld machines with 1150 proprietary OS's and limited memory and storage 1151 running small fs translation drivers) through serial / 1152 IRDA / parallel links. 1153 1154 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc 1155 1156 60-63 char LOCAL/EXPERIMENTAL USE 1157 1158 60-63 block LOCAL/EXPERIMENTAL USE 1159 Allocated for local/experimental use. For devices not 1160 assigned official numbers, these ranges should be 1161 used in order to avoid conflicting with future assignments. 1162 1163 64 char ENskip kernel encryption package 1164 0 = /dev/enskip Communication with ENskip kernel module 1165 1166 64 block Scramdisk/DriveCrypt encrypted devices 1167 0 = /dev/scramdisk/master Master node for ioctls 1168 1 = /dev/scramdisk/1 First encrypted device 1169 2 = /dev/scramdisk/2 Second encrypted device 1170 ... 1171 255 = /dev/scramdisk/255 255th encrypted device 1172 1173 The filename of the encrypted container and the passwords 1174 are sent via ioctls (using the sdmount tool) to the master 1175 node which then activates them via one of the 1176 /dev/scramdisk/x nodes for loop mounting (all handled 1177 through the sdmount tool). 1178 1179 Requested by: andy@scramdisklinux.org 1180 1181 65 char Sundance "plink" Transputer boards (obsolete, unused) 1182 0 = /dev/plink0 First plink device 1183 1 = /dev/plink1 Second plink device 1184 2 = /dev/plink2 Third plink device 1185 3 = /dev/plink3 Fourth plink device 1186 64 = /dev/rplink0 First plink device, raw 1187 65 = /dev/rplink1 Second plink device, raw 1188 66 = /dev/rplink2 Third plink device, raw 1189 67 = /dev/rplink3 Fourth plink device, raw 1190 128 = /dev/plink0d First plink device, debug 1191 129 = /dev/plink1d Second plink device, debug 1192 130 = /dev/plink2d Third plink device, debug 1193 131 = /dev/plink3d Fourth plink device, debug 1194 192 = /dev/rplink0d First plink device, raw, debug 1195 193 = /dev/rplink1d Second plink device, raw, debug 1196 194 = /dev/rplink2d Third plink device, raw, debug 1197 195 = /dev/rplink3d Fourth plink device, raw, debug 1198 1199 This is a commercial driver; contact James Howes 1200 <jth@prosig.demon.co.uk> for information. 1201 1202 65 block SCSI disk devices (16-31) 1203 0 = /dev/sdq 17th SCSI disk whole disk 1204 16 = /dev/sdr 18th SCSI disk whole disk 1205 32 = /dev/sds 19th SCSI disk whole disk 1206 ... 1207 240 = /dev/sdaf 32nd SCSI disk whole disk 1208 1209 Partitions are handled in the same way as for IDE 1210 disks (see major number 3) except that the limit on 1211 partitions is 15. 1212 1213 66 char YARC PowerPC PCI coprocessor card 1214 0 = /dev/yppcpci0 First YARC card 1215 1 = /dev/yppcpci1 Second YARC card 1216 ... 1217 1218 66 block SCSI disk devices (32-47) 1219 0 = /dev/sdag 33th SCSI disk whole disk 1220 16 = /dev/sdah 34th SCSI disk whole disk 1221 32 = /dev/sdai 35th SCSI disk whole disk 1222 ... 1223 240 = /dev/sdav 48nd SCSI disk whole disk 1224 1225 Partitions are handled in the same way as for IDE 1226 disks (see major number 3) except that the limit on 1227 partitions is 15. 1228 1229 67 char Coda network file system 1230 0 = /dev/cfs0 Coda cache manager 1231 1232 See http://www.coda.cs.cmu.edu for information about Coda. 1233 1234 67 block SCSI disk devices (48-63) 1235 0 = /dev/sdaw 49th SCSI disk whole disk 1236 16 = /dev/sdax 50th SCSI disk whole disk 1237 32 = /dev/sday 51st SCSI disk whole disk 1238 ... 1239 240 = /dev/sdbl 64th SCSI disk whole disk 1240 1241 Partitions are handled in the same way as for IDE 1242 disks (see major number 3) except that the limit on 1243 partitions is 15. 1244 1245 68 char CAPI 2.0 interface 1246 0 = /dev/capi20 Control device 1247 1 = /dev/capi20.00 First CAPI 2.0 application 1248 2 = /dev/capi20.01 Second CAPI 2.0 application 1249 ... 1250 20 = /dev/capi20.19 19th CAPI 2.0 application 1251 1252 ISDN CAPI 2.0 driver for use with CAPI 2.0 1253 applications; currently supports the AVM B1 card. 1254 1255 68 block SCSI disk devices (64-79) 1256 0 = /dev/sdbm 65th SCSI disk whole disk 1257 16 = /dev/sdbn 66th SCSI disk whole disk 1258 32 = /dev/sdbo 67th SCSI disk whole disk 1259 ... 1260 240 = /dev/sdcb 80th SCSI disk whole disk 1261 1262 Partitions are handled in the same way as for IDE 1263 disks (see major number 3) except that the limit on 1264 partitions is 15. 1265 1266 69 char MA16 numeric accelerator card 1267 0 = /dev/ma16 Board memory access 1268 1269 69 block SCSI disk devices (80-95) 1270 0 = /dev/sdcc 81st SCSI disk whole disk 1271 16 = /dev/sdcd 82nd SCSI disk whole disk 1272 32 = /dev/sdce 83th SCSI disk whole disk 1273 ... 1274 240 = /dev/sdcr 96th SCSI disk whole disk 1275 1276 Partitions are handled in the same way as for IDE 1277 disks (see major number 3) except that the limit on 1278 partitions is 15. 1279 1280 70 char SpellCaster Protocol Services Interface 1281 0 = /dev/apscfg Configuration interface 1282 1 = /dev/apsauth Authentication interface 1283 2 = /dev/apslog Logging interface 1284 3 = /dev/apsdbg Debugging interface 1285 64 = /dev/apsisdn ISDN command interface 1286 65 = /dev/apsasync Async command interface 1287 128 = /dev/apsmon Monitor interface 1288 1289 70 block SCSI disk devices (96-111) 1290 0 = /dev/sdcs 97th SCSI disk whole disk 1291 16 = /dev/sdct 98th SCSI disk whole disk 1292 32 = /dev/sdcu 99th SCSI disk whole disk 1293 ... 1294 240 = /dev/sddh 112nd SCSI disk whole disk 1295 1296 Partitions are handled in the same way as for IDE 1297 disks (see major number 3) except that the limit on 1298 partitions is 15. 1299 1300 71 char Computone IntelliPort II serial card 1301 0 = /dev/ttyF0 IntelliPort II board 0, port 0 1302 1 = /dev/ttyF1 IntelliPort II board 0, port 1 1303 ... 1304 63 = /dev/ttyF63 IntelliPort II board 0, port 63 1305 64 = /dev/ttyF64 IntelliPort II board 1, port 0 1306 65 = /dev/ttyF65 IntelliPort II board 1, port 1 1307 ... 1308 127 = /dev/ttyF127 IntelliPort II board 1, port 63 1309 128 = /dev/ttyF128 IntelliPort II board 2, port 0 1310 129 = /dev/ttyF129 IntelliPort II board 2, port 1 1311 ... 1312 191 = /dev/ttyF191 IntelliPort II board 2, port 63 1313 192 = /dev/ttyF192 IntelliPort II board 3, port 0 1314 193 = /dev/ttyF193 IntelliPort II board 3, port 1 1315 ... 1316 255 = /dev/ttyF255 IntelliPort II board 3, port 63 1317 1318 71 block SCSI disk devices (112-127) 1319 0 = /dev/sddi 113th SCSI disk whole disk 1320 16 = /dev/sddj 114th SCSI disk whole disk 1321 32 = /dev/sddk 115th SCSI disk whole disk 1322 ... 1323 240 = /dev/sddx 128th SCSI disk whole disk 1324 1325 Partitions are handled in the same way as for IDE 1326 disks (see major number 3) except that the limit on 1327 partitions is 15. 1328 1329 72 char Computone IntelliPort II serial card - alternate devices 1330 0 = /dev/cuf0 Callout device for ttyF0 1331 1 = /dev/cuf1 Callout device for ttyF1 1332 ... 1333 63 = /dev/cuf63 Callout device for ttyF63 1334 64 = /dev/cuf64 Callout device for ttyF64 1335 65 = /dev/cuf65 Callout device for ttyF65 1336 ... 1337 127 = /dev/cuf127 Callout device for ttyF127 1338 128 = /dev/cuf128 Callout device for ttyF128 1339 129 = /dev/cuf129 Callout device for ttyF129 1340 ... 1341 191 = /dev/cuf191 Callout device for ttyF191 1342 192 = /dev/cuf192 Callout device for ttyF192 1343 193 = /dev/cuf193 Callout device for ttyF193 1344 ... 1345 255 = /dev/cuf255 Callout device for ttyF255 1346 1347 72 block Compaq Intelligent Drive Array, first controller 1348 0 = /dev/ida/c0d0 First logical drive whole disk 1349 16 = /dev/ida/c0d1 Second logical drive whole disk 1350 ... 1351 240 = /dev/ida/c0d15 16th logical drive whole disk 1352 1353 Partitions are handled the same way as for Mylex 1354 DAC960 (see major number 48) except that the limit on 1355 partitions is 15. 1356 1357 73 char Computone IntelliPort II serial card - control devices 1358 0 = /dev/ip2ipl0 Loadware device for board 0 1359 1 = /dev/ip2stat0 Status device for board 0 1360 4 = /dev/ip2ipl1 Loadware device for board 1 1361 5 = /dev/ip2stat1 Status device for board 1 1362 8 = /dev/ip2ipl2 Loadware device for board 2 1363 9 = /dev/ip2stat2 Status device for board 2 1364 12 = /dev/ip2ipl3 Loadware device for board 3 1365 13 = /dev/ip2stat3 Status device for board 3 1366 1367 73 block Compaq Intelligent Drive Array, second controller 1368 0 = /dev/ida/c1d0 First logical drive whole disk 1369 16 = /dev/ida/c1d1 Second logical drive whole disk 1370 ... 1371 240 = /dev/ida/c1d15 16th logical drive whole disk 1372 1373 Partitions are handled the same way as for Mylex 1374 DAC960 (see major number 48) except that the limit on 1375 partitions is 15. 1376 1377 74 char SCI bridge 1378 0 = /dev/SCI/0 SCI device 0 1379 1 = /dev/SCI/1 SCI device 1 1380 ... 1381 1382 Currently for Dolphin Interconnect Solutions' PCI-SCI 1383 bridge. 1384 1385 74 block Compaq Intelligent Drive Array, third controller 1386 0 = /dev/ida/c2d0 First logical drive whole disk 1387 16 = /dev/ida/c2d1 Second logical drive whole disk 1388 ... 1389 240 = /dev/ida/c2d15 16th logical drive whole disk 1390 1391 Partitions are handled the same way as for Mylex 1392 DAC960 (see major number 48) except that the limit on 1393 partitions is 15. 1394 1395 75 char Specialix IO8+ serial card 1396 0 = /dev/ttyW0 First IO8+ port, first card 1397 1 = /dev/ttyW1 Second IO8+ port, first card 1398 ... 1399 8 = /dev/ttyW8 First IO8+ port, second card 1400 ... 1401 1402 75 block Compaq Intelligent Drive Array, fourth controller 1403 0 = /dev/ida/c3d0 First logical drive whole disk 1404 16 = /dev/ida/c3d1 Second logical drive whole disk 1405 ... 1406 240 = /dev/ida/c3d15 16th logical drive whole disk 1407 1408 Partitions are handled the same way as for Mylex 1409 DAC960 (see major number 48) except that the limit on 1410 partitions is 15. 1411 1412 76 char Specialix IO8+ serial card - alternate devices 1413 0 = /dev/cuw0 Callout device for ttyW0 1414 1 = /dev/cuw1 Callout device for ttyW1 1415 ... 1416 8 = /dev/cuw8 Callout device for ttyW8 1417 ... 1418 1419 76 block Compaq Intelligent Drive Array, fifth controller 1420 0 = /dev/ida/c4d0 First logical drive whole disk 1421 16 = /dev/ida/c4d1 Second logical drive whole disk 1422 ... 1423 240 = /dev/ida/c4d15 16th logical drive whole disk 1424 1425 Partitions are handled the same way as for Mylex 1426 DAC960 (see major number 48) except that the limit on 1427 partitions is 15. 1428 1429 1430 77 char ComScire Quantum Noise Generator 1431 0 = /dev/qng ComScire Quantum Noise Generator 1432 1433 77 block Compaq Intelligent Drive Array, sixth controller 1434 0 = /dev/ida/c5d0 First logical drive whole disk 1435 16 = /dev/ida/c5d1 Second logical drive whole disk 1436 ... 1437 240 = /dev/ida/c5d15 16th logical drive whole disk 1438 1439 Partitions are handled the same way as for Mylex 1440 DAC960 (see major number 48) except that the limit on 1441 partitions is 15. 1442 1443 78 char PAM Software's multimodem boards 1444 0 = /dev/ttyM0 First PAM modem 1445 1 = /dev/ttyM1 Second PAM modem 1446 ... 1447 1448 78 block Compaq Intelligent Drive Array, seventh controller 1449 0 = /dev/ida/c6d0 First logical drive whole disk 1450 16 = /dev/ida/c6d1 Second logical drive whole disk 1451 ... 1452 240 = /dev/ida/c6d15 16th logical drive whole disk 1453 1454 Partitions are handled the same way as for Mylex 1455 DAC960 (see major number 48) except that the limit on 1456 partitions is 15. 1457 1458 79 char PAM Software's multimodem boards - alternate devices 1459 0 = /dev/cum0 Callout device for ttyM0 1460 1 = /dev/cum1 Callout device for ttyM1 1461 ... 1462 1463 79 block Compaq Intelligent Drive Array, eighth controller 1464 0 = /dev/ida/c7d0 First logical drive whole disk 1465 16 = /dev/ida/c7d1 Second logical drive whole disk 1466 ... 1467 240 = /dev/ida/c715 16th logical drive whole disk 1468 1469 Partitions are handled the same way as for Mylex 1470 DAC960 (see major number 48) except that the limit on 1471 partitions is 15. 1472 1473 80 char Photometrics AT200 CCD camera 1474 0 = /dev/at200 Photometrics AT200 CCD camera 1475 1476 80 block I2O hard disk 1477 0 = /dev/i2o/hda First I2O hard disk, whole disk 1478 16 = /dev/i2o/hdb Second I2O hard disk, whole disk 1479 ... 1480 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk 1481 1482 Partitions are handled in the same way as for IDE 1483 disks (see major number 3) except that the limit on 1484 partitions is 15. 1485 1486 81 char video4linux 1487 0 = /dev/video0 Video capture/overlay device 1488 ... 1489 63 = /dev/video63 Video capture/overlay device 1490 64 = /dev/radio0 Radio device 1491 ... 1492 127 = /dev/radio63 Radio device 1493 224 = /dev/vbi0 Vertical blank interrupt 1494 ... 1495 255 = /dev/vbi31 Vertical blank interrupt 1496 1497 81 block I2O hard disk 1498 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk 1499 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk 1500 ... 1501 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk 1502 1503 Partitions are handled in the same way as for IDE 1504 disks (see major number 3) except that the limit on 1505 partitions is 15. 1506 1507 82 char WiNRADiO communications receiver card 1508 0 = /dev/winradio0 First WiNRADiO card 1509 1 = /dev/winradio1 Second WiNRADiO card 1510 ... 1511 1512 The driver and documentation may be obtained from 1513 http://www.winradio.com/ 1514 1515 82 block I2O hard disk 1516 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk 1517 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk 1518 ... 1519 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk 1520 1521 Partitions are handled in the same way as for IDE 1522 disks (see major number 3) except that the limit on 1523 partitions is 15. 1524 1525 83 char Matrox mga_vid video driver 1526 0 = /dev/mga_vid0 1st video card 1527 1 = /dev/mga_vid1 2nd video card 1528 2 = /dev/mga_vid2 3rd video card 1529 ... 1530 15 = /dev/mga_vid15 16th video card 1531 1532 83 block I2O hard disk 1533 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk 1534 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk 1535 ... 1536 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk 1537 1538 Partitions are handled in the same way as for IDE 1539 disks (see major number 3) except that the limit on 1540 partitions is 15. 1541 1542 84 char Ikon 1011[57] Versatec Greensheet Interface 1543 0 = /dev/ihcp0 First Greensheet port 1544 1 = /dev/ihcp1 Second Greensheet port 1545 1546 84 block I2O hard disk 1547 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk 1548 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk 1549 ... 1550 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk 1551 1552 Partitions are handled in the same way as for IDE 1553 disks (see major number 3) except that the limit on 1554 partitions is 15. 1555 1556 85 char Linux/SGI shared memory input queue 1557 0 = /dev/shmiq Master shared input queue 1558 1 = /dev/qcntl0 First device pushed 1559 2 = /dev/qcntl1 Second device pushed 1560 ... 1561 1562 85 block I2O hard disk 1563 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk 1564 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk 1565 ... 1566 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk 1567 1568 Partitions are handled in the same way as for IDE 1569 disks (see major number 3) except that the limit on 1570 partitions is 15. 1571 1572 86 char SCSI media changer 1573 0 = /dev/sch0 First SCSI media changer 1574 1 = /dev/sch1 Second SCSI media changer 1575 ... 1576 1577 86 block I2O hard disk 1578 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk 1579 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk 1580 ... 1581 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk 1582 1583 Partitions are handled in the same way as for IDE 1584 disks (see major number 3) except that the limit on 1585 partitions is 15. 1586 1587 87 char Sony Control-A1 stereo control bus 1588 0 = /dev/controla0 First device on chain 1589 1 = /dev/controla1 Second device on chain 1590 ... 1591 1592 87 block I2O hard disk 1593 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk 1594 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk 1595 ... 1596 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk 1597 1598 Partitions are handled in the same way as for IDE 1599 disks (see major number 3) except that the limit on 1600 partitions is 15. 1601 1602 88 char COMX synchronous serial card 1603 0 = /dev/comx0 COMX channel 0 1604 1 = /dev/comx1 COMX channel 1 1605 ... 1606 1607 88 block Seventh IDE hard disk/CD-ROM interface 1608 0 = /dev/hdm Master: whole disk (or CD-ROM) 1609 64 = /dev/hdn Slave: whole disk (or CD-ROM) 1610 1611 Partitions are handled the same way as for the first 1612 interface (see major number 3). 1613 1614 89 char I2C bus interface 1615 0 = /dev/i2c-0 First I2C adapter 1616 1 = /dev/i2c-1 Second I2C adapter 1617 ... 1618 1619 89 block Eighth IDE hard disk/CD-ROM interface 1620 0 = /dev/hdo Master: whole disk (or CD-ROM) 1621 64 = /dev/hdp Slave: whole disk (or CD-ROM) 1622 1623 Partitions are handled the same way as for the first 1624 interface (see major number 3). 1625 1626 90 char Memory Technology Device (RAM, ROM, Flash) 1627 0 = /dev/mtd0 First MTD (rw) 1628 1 = /dev/mtdr0 First MTD (ro) 1629 ... 1630 30 = /dev/mtd15 16th MTD (rw) 1631 31 = /dev/mtdr15 16th MTD (ro) 1632 1633 90 block Ninth IDE hard disk/CD-ROM interface 1634 0 = /dev/hdq Master: whole disk (or CD-ROM) 1635 64 = /dev/hdr Slave: whole disk (or CD-ROM) 1636 1637 Partitions are handled the same way as for the first 1638 interface (see major number 3). 1639 1640 91 char CAN-Bus devices 1641 0 = /dev/can0 First CAN-Bus controller 1642 1 = /dev/can1 Second CAN-Bus controller 1643 ... 1644 1645 91 block Tenth IDE hard disk/CD-ROM interface 1646 0 = /dev/hds Master: whole disk (or CD-ROM) 1647 64 = /dev/hdt Slave: whole disk (or CD-ROM) 1648 1649 Partitions are handled the same way as for the first 1650 interface (see major number 3). 1651 1652 92 char Reserved for ith Kommunikationstechnik MIC ISDN card 1653 1654 92 block PPDD encrypted disk driver 1655 0 = /dev/ppdd0 First encrypted disk 1656 1 = /dev/ppdd1 Second encrypted disk 1657 ... 1658 1659 Partitions are handled in the same way as for IDE 1660 disks (see major number 3) except that the limit on 1661 partitions is 15. 1662 1663 93 char 1664 1665 93 block NAND Flash Translation Layer filesystem 1666 0 = /dev/nftla First NFTL layer 1667 16 = /dev/nftlb Second NFTL layer 1668 ... 1669 240 = /dev/nftlp 16th NTFL layer 1670 1671 94 char 1672 1673 94 block IBM S/390 DASD block storage 1674 0 = /dev/dasda First DASD device, major 1675 1 = /dev/dasda1 First DASD device, block 1 1676 2 = /dev/dasda2 First DASD device, block 2 1677 3 = /dev/dasda3 First DASD device, block 3 1678 4 = /dev/dasdb Second DASD device, major 1679 5 = /dev/dasdb1 Second DASD device, block 1 1680 6 = /dev/dasdb2 Second DASD device, block 2 1681 7 = /dev/dasdb3 Second DASD device, block 3 1682 ... 1683 1684 95 char IP filter 1685 0 = /dev/ipl Filter control device/log file 1686 1 = /dev/ipnat NAT control device/log file 1687 2 = /dev/ipstate State information log file 1688 3 = /dev/ipauth Authentication control device/log file 1689 ... 1690 1691 96 char Parallel port ATAPI tape devices 1692 0 = /dev/pt0 First parallel port ATAPI tape 1693 1 = /dev/pt1 Second parallel port ATAPI tape 1694 ... 1695 128 = /dev/npt0 First p.p. ATAPI tape, no rewind 1696 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind 1697 ... 1698 1699 96 block Inverse NAND Flash Translation Layer 1700 0 = /dev/inftla First INFTL layer 1701 16 = /dev/inftlb Second INFTL layer 1702 ... 1703 240 = /dev/inftlp 16th INTFL layer 1704 1705 97 char Parallel port generic ATAPI interface 1706 0 = /dev/pg0 First parallel port ATAPI device 1707 1 = /dev/pg1 Second parallel port ATAPI device 1708 2 = /dev/pg2 Third parallel port ATAPI device 1709 3 = /dev/pg3 Fourth parallel port ATAPI device 1710 1711 These devices support the same API as the generic SCSI 1712 devices. 1713 1714 98 char Control and Measurement Device (comedi) 1715 0 = /dev/comedi0 First comedi device 1716 1 = /dev/comedi1 Second comedi device 1717 ... 1718 1719 See http://stm.lbl.gov/comedi. 1720 1721 98 block User-mode virtual block device 1722 0 = /dev/ubda First user-mode block device 1723 16 = /dev/udbb Second user-mode block device 1724 ... 1725 1726 Partitions are handled in the same way as for IDE 1727 disks (see major number 3) except that the limit on 1728 partitions is 15. 1729 1730 This device is used by the user-mode virtual kernel port. 1731 1732 99 char Raw parallel ports 1733 0 = /dev/parport0 First parallel port 1734 1 = /dev/parport1 Second parallel port 1735 ... 1736 1737 99 block JavaStation flash disk 1738 0 = /dev/jsfd JavaStation flash disk 1739 1740100 char Telephony for Linux 1741 0 = /dev/phone0 First telephony device 1742 1 = /dev/phone1 Second telephony device 1743 ... 1744 1745101 char Motorola DSP 56xxx board 1746 0 = /dev/mdspstat Status information 1747 1 = /dev/mdsp1 First DSP board I/O controls 1748 ... 1749 16 = /dev/mdsp16 16th DSP board I/O controls 1750 1751101 block AMI HyperDisk RAID controller 1752 0 = /dev/amiraid/ar0 First array whole disk 1753 16 = /dev/amiraid/ar1 Second array whole disk 1754 ... 1755 240 = /dev/amiraid/ar15 16th array whole disk 1756 1757 For each device, partitions are added as: 1758 0 = /dev/amiraid/ar? Whole disk 1759 1 = /dev/amiraid/ar?p1 First partition 1760 2 = /dev/amiraid/ar?p2 Second partition 1761 ... 1762 15 = /dev/amiraid/ar?p15 15th partition 1763 1764102 char 1765 1766102 block Compressed block device 1767 0 = /dev/cbd/a First compressed block device, whole device 1768 16 = /dev/cbd/b Second compressed block device, whole device 1769 ... 1770 240 = /dev/cbd/p 16th compressed block device, whole device 1771 1772 Partitions are handled in the same way as for IDE 1773 disks (see major number 3) except that the limit on 1774 partitions is 15. 1775 1776103 char Arla network file system 1777 0 = /dev/nnpfs0 First NNPFS device 1778 1 = /dev/nnpfs1 Second NNPFS device 1779 1780 Arla is a free clone of the Andrew File System, AFS. 1781 The NNPFS device gives user mode filesystem 1782 implementations a kernel presence for caching and easy 1783 mounting. For more information about the project, 1784 write to <arla-drinkers@stacken.kth.se> or see 1785 http://www.stacken.kth.se/project/arla/ 1786 1787103 block Audit device 1788 0 = /dev/audit Audit device 1789 1790104 char Flash BIOS support 1791 1792104 block Compaq Next Generation Drive Array, first controller 1793 0 = /dev/cciss/c0d0 First logical drive, whole disk 1794 16 = /dev/cciss/c0d1 Second logical drive, whole disk 1795 ... 1796 240 = /dev/cciss/c0d15 16th logical drive, whole disk 1797 1798 Partitions are handled the same way as for Mylex 1799 DAC960 (see major number 48) except that the limit on 1800 partitions is 15. 1801 1802105 char Comtrol VS-1000 serial controller 1803 0 = /dev/ttyV0 First VS-1000 port 1804 1 = /dev/ttyV1 Second VS-1000 port 1805 ... 1806 1807105 block Compaq Next Generation Drive Array, second controller 1808 0 = /dev/cciss/c1d0 First logical drive, whole disk 1809 16 = /dev/cciss/c1d1 Second logical drive, whole disk 1810 ... 1811 240 = /dev/cciss/c1d15 16th logical drive, whole disk 1812 1813 Partitions are handled the same way as for Mylex 1814 DAC960 (see major number 48) except that the limit on 1815 partitions is 15. 1816 1817106 char Comtrol VS-1000 serial controller - alternate devices 1818 0 = /dev/cuv0 First VS-1000 port 1819 1 = /dev/cuv1 Second VS-1000 port 1820 ... 1821 1822106 block Compaq Next Generation Drive Array, third controller 1823 0 = /dev/cciss/c2d0 First logical drive, whole disk 1824 16 = /dev/cciss/c2d1 Second logical drive, whole disk 1825 ... 1826 240 = /dev/cciss/c2d15 16th logical drive, whole disk 1827 1828 Partitions are handled the same way as for Mylex 1829 DAC960 (see major number 48) except that the limit on 1830 partitions is 15. 1831 1832107 char 3Dfx Voodoo Graphics device 1833 0 = /dev/3dfx Primary 3Dfx graphics device 1834 1835107 block Compaq Next Generation Drive Array, fourth controller 1836 0 = /dev/cciss/c3d0 First logical drive, whole disk 1837 16 = /dev/cciss/c3d1 Second logical drive, whole disk 1838 ... 1839 240 = /dev/cciss/c3d15 16th logical drive, whole disk 1840 1841 Partitions are handled the same way as for Mylex 1842 DAC960 (see major number 48) except that the limit on 1843 partitions is 15. 1844 1845108 char Device independent PPP interface 1846 0 = /dev/ppp Device independent PPP interface 1847 1848108 block Compaq Next Generation Drive Array, fifth controller 1849 0 = /dev/cciss/c4d0 First logical drive, whole disk 1850 16 = /dev/cciss/c4d1 Second logical drive, whole disk 1851 ... 1852 240 = /dev/cciss/c4d15 16th logical drive, whole disk 1853 1854 Partitions are handled the same way as for Mylex 1855 DAC960 (see major number 48) except that the limit on 1856 partitions is 15. 1857 1858109 char Reserved for logical volume manager 1859 1860109 block Compaq Next Generation Drive Array, sixth controller 1861 0 = /dev/cciss/c5d0 First logical drive, whole disk 1862 16 = /dev/cciss/c5d1 Second logical drive, whole disk 1863 ... 1864 240 = /dev/cciss/c5d15 16th logical drive, whole disk 1865 1866 Partitions are handled the same way as for Mylex 1867 DAC960 (see major number 48) except that the limit on 1868 partitions is 15. 1869 1870110 char miroMEDIA Surround board 1871 0 = /dev/srnd0 First miroMEDIA Surround board 1872 1 = /dev/srnd1 Second miroMEDIA Surround board 1873 ... 1874 1875110 block Compaq Next Generation Drive Array, seventh controller 1876 0 = /dev/cciss/c6d0 First logical drive, whole disk 1877 16 = /dev/cciss/c6d1 Second logical drive, whole disk 1878 ... 1879 240 = /dev/cciss/c6d15 16th logical drive, whole disk 1880 1881 Partitions are handled the same way as for Mylex 1882 DAC960 (see major number 48) except that the limit on 1883 partitions is 15. 1884 1885111 char 1886 1887111 block Compaq Next Generation Drive Array, eighth controller 1888 0 = /dev/cciss/c7d0 First logical drive, whole disk 1889 16 = /dev/cciss/c7d1 Second logical drive, whole disk 1890 ... 1891 240 = /dev/cciss/c7d15 16th logical drive, whole disk 1892 1893 Partitions are handled the same way as for Mylex 1894 DAC960 (see major number 48) except that the limit on 1895 partitions is 15. 1896 1897112 char ISI serial card 1898 0 = /dev/ttyM0 First ISI port 1899 1 = /dev/ttyM1 Second ISI port 1900 ... 1901 1902 There is currently a device-naming conflict between 1903 these and PAM multimodems (major 78). 1904 1905112 block IBM iSeries virtual disk 1906 0 = /dev/iseries/vda First virtual disk, whole disk 1907 8 = /dev/iseries/vdb Second virtual disk, whole disk 1908 ... 1909 200 = /dev/iseries/vdz 26th virtual disk, whole disk 1910 208 = /dev/iseries/vdaa 27th virtual disk, whole disk 1911 ... 1912 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk 1913 1914 Partitions are handled in the same way as for IDE 1915 disks (see major number 3) except that the limit on 1916 partitions is 7. 1917 1918113 char ISI serial card - alternate devices 1919 0 = /dev/cum0 Callout device for ttyM0 1920 1 = /dev/cum1 Callout device for ttyM1 1921 ... 1922 1923113 block IBM iSeries virtual CD-ROM 1924 0 = /dev/iseries/vcda First virtual CD-ROM 1925 1 = /dev/iseries/vcdb Second virtual CD-ROM 1926 ... 1927 1928114 char Picture Elements ISE board 1929 0 = /dev/ise0 First ISE board 1930 1 = /dev/ise1 Second ISE board 1931 ... 1932 128 = /dev/isex0 Control node for first ISE board 1933 129 = /dev/isex1 Control node for second ISE board 1934 ... 1935 1936 The ISE board is an embedded computer, optimized for 1937 image processing. The /dev/iseN nodes are the general 1938 I/O access to the board, the /dev/isex0 nodes command 1939 nodes used to control the board. 1940 1941114 block IDE BIOS powered software RAID interfaces such as the 1942 Promise Fastrak 1943 1944 0 = /dev/ataraid/d0 1945 1 = /dev/ataraid/d0p1 1946 2 = /dev/ataraid/d0p2 1947 ... 1948 16 = /dev/ataraid/d1 1949 17 = /dev/ataraid/d1p1 1950 18 = /dev/ataraid/d1p2 1951 ... 1952 255 = /dev/ataraid/d15p15 1953 1954 Partitions are handled in the same way as for IDE 1955 disks (see major number 3) except that the limit on 1956 partitions is 15. 1957 1958115 char TI link cable devices (115 was formerly the console driver speaker) 1959 0 = /dev/tipar0 Parallel cable on first parallel port 1960 ... 1961 7 = /dev/tipar7 Parallel cable on seventh parallel port 1962 1963 8 = /dev/tiser0 Serial cable on first serial port 1964 ... 1965 15 = /dev/tiser7 Serial cable on seventh serial port 1966 1967 16 = /dev/tiusb0 First USB cable 1968 ... 1969 47 = /dev/tiusb31 32nd USB cable 1970 1971115 block NetWare (NWFS) Devices (0-255) 1972 1973 The NWFS (NetWare) devices are used to present a 1974 collection of NetWare Mirror Groups or NetWare 1975 Partitions as a logical storage segment for 1976 use in mounting NetWare volumes. A maximum of 1977 256 NetWare volumes can be supported in a single 1978 machine. 1979 1980 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/ 1981 1982 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume 1983 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume 1984 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume 1985 ... 1986 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume 1987 1988116 char Advanced Linux Sound Driver (ALSA) 1989 1990116 block MicroMemory battery backed RAM adapter (NVRAM) 1991 Supports 16 boards, 15 partitions each. 1992 Requested by neilb at cse.unsw.edu.au. 1993 1994 0 = /dev/umem/d0 Whole of first board 1995 1 = /dev/umem/d0p1 First partition of first board 1996 2 = /dev/umem/d0p2 Second partition of first board 1997 15 = /dev/umem/d0p15 15th partition of first board 1998 1999 16 = /dev/umem/d1 Whole of second board 2000 17 = /dev/umem/d1p1 First partition of second board 2001 ... 2002 255= /dev/umem/d15p15 15th partition of 16th board. 2003 2004117 char COSA/SRP synchronous serial card 2005 0 = /dev/cosa0c0 1st board, 1st channel 2006 1 = /dev/cosa0c1 1st board, 2nd channel 2007 ... 2008 16 = /dev/cosa1c0 2nd board, 1st channel 2009 17 = /dev/cosa1c1 2nd board, 2nd channel 2010 ... 2011 2012117 block Enterprise Volume Management System (EVMS) 2013 2014 The EVMS driver uses a layered, plug-in model to provide 2015 unparalleled flexibility and extensibility in managing 2016 storage. This allows for easy expansion or customization 2017 of various levels of volume management. Requested by 2018 Mark Peloquin (peloquin at us.ibm.com). 2019 2020 Note: EVMS populates and manages all the devnodes in 2021 /dev/evms. 2022 2023 http://sf.net/projects/evms 2024 2025 0 = /dev/evms/block_device EVMS block device 2026 1 = /dev/evms/legacyname1 First EVMS legacy device 2027 2 = /dev/evms/legacyname2 Second EVMS legacy device 2028 ... 2029 Both ranges can grow (down or up) until they meet. 2030 ... 2031 254 = /dev/evms/EVMSname2 Second EVMS native device 2032 255 = /dev/evms/EVMSname1 First EVMS native device 2033 2034 Note: legacyname(s) are derived from the normal legacy 2035 device names. For example, /dev/hda5 would become 2036 /dev/evms/hda5. 2037 2038118 char IBM Cryptographic Accelerator 2039 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators 2040 1 = /dev/ica0 IBMCA Device 0 2041 2 = /dev/ica1 IBMCA Device 1 2042 ... 2043 2044119 char VMware virtual network control 2045 0 = /dev/vnet0 1st virtual network 2046 1 = /dev/vnet1 2nd virtual network 2047 ... 2048 2049120-127 char LOCAL/EXPERIMENTAL USE 2050 2051120-127 block LOCAL/EXPERIMENTAL USE 2052 Allocated for local/experimental use. For devices not 2053 assigned official numbers, these ranges should be 2054 used in order to avoid conflicting with future assignments. 2055 2056128-135 char Unix98 PTY masters 2057 2058 These devices should not have corresponding device 2059 nodes; instead they should be accessed through the 2060 /dev/ptmx cloning interface. 2061 2062128 block SCSI disk devices (128-143) 2063 0 = /dev/sddy 129th SCSI disk whole disk 2064 16 = /dev/sddz 130th SCSI disk whole disk 2065 32 = /dev/sdea 131th SCSI disk whole disk 2066 ... 2067 240 = /dev/sden 144th SCSI disk whole disk 2068 2069 Partitions are handled in the same way as for IDE 2070 disks (see major number 3) except that the limit on 2071 partitions is 15. 2072 2073129 block SCSI disk devices (144-159) 2074 0 = /dev/sdeo 145th SCSI disk whole disk 2075 16 = /dev/sdep 146th SCSI disk whole disk 2076 32 = /dev/sdeq 147th SCSI disk whole disk 2077 ... 2078 240 = /dev/sdfd 160th SCSI disk whole disk 2079 2080 Partitions are handled in the same way as for IDE 2081 disks (see major number 3) except that the limit on 2082 partitions is 15. 2083 2084130 char (Misc devices) 2085 2086130 block SCSI disk devices (160-175) 2087 0 = /dev/sdfe 161st SCSI disk whole disk 2088 16 = /dev/sdff 162nd SCSI disk whole disk 2089 32 = /dev/sdfg 163rd SCSI disk whole disk 2090 ... 2091 240 = /dev/sdft 176th SCSI disk whole disk 2092 2093 Partitions are handled in the same way as for IDE 2094 disks (see major number 3) except that the limit on 2095 partitions is 15. 2096 2097131 block SCSI disk devices (176-191) 2098 0 = /dev/sdfu 177th SCSI disk whole disk 2099 16 = /dev/sdfv 178th SCSI disk whole disk 2100 32 = /dev/sdfw 179th SCSI disk whole disk 2101 ... 2102 240 = /dev/sdgj 192nd SCSI disk whole disk 2103 2104 Partitions are handled in the same way as for IDE 2105 disks (see major number 3) except that the limit on 2106 partitions is 15. 2107 2108132 block SCSI disk devices (192-207) 2109 0 = /dev/sdgk 193rd SCSI disk whole disk 2110 16 = /dev/sdgl 194th SCSI disk whole disk 2111 32 = /dev/sdgm 195th SCSI disk whole disk 2112 ... 2113 240 = /dev/sdgz 208th SCSI disk whole disk 2114 2115 Partitions are handled in the same way as for IDE 2116 disks (see major number 3) except that the limit on 2117 partitions is 15. 2118 2119133 block SCSI disk devices (208-223) 2120 0 = /dev/sdha 209th SCSI disk whole disk 2121 16 = /dev/sdhb 210th SCSI disk whole disk 2122 32 = /dev/sdhc 211th SCSI disk whole disk 2123 ... 2124 240 = /dev/sdhp 224th SCSI disk whole disk 2125 2126 Partitions are handled in the same way as for IDE 2127 disks (see major number 3) except that the limit on 2128 partitions is 15. 2129 2130134 block SCSI disk devices (224-239) 2131 0 = /dev/sdhq 225th SCSI disk whole disk 2132 16 = /dev/sdhr 226th SCSI disk whole disk 2133 32 = /dev/sdhs 227th SCSI disk whole disk 2134 ... 2135 240 = /dev/sdif 240th SCSI disk whole disk 2136 2137 Partitions are handled in the same way as for IDE 2138 disks (see major number 3) except that the limit on 2139 partitions is 15. 2140 2141135 block SCSI disk devices (240-255) 2142 0 = /dev/sdig 241st SCSI disk whole disk 2143 16 = /dev/sdih 242nd SCSI disk whole disk 2144 32 = /dev/sdih 243rd SCSI disk whole disk 2145 ... 2146 240 = /dev/sdiv 256th SCSI disk whole disk 2147 2148 Partitions are handled in the same way as for IDE 2149 disks (see major number 3) except that the limit on 2150 partitions is 15. 2151 2152136-143 char Unix98 PTY slaves 2153 0 = /dev/pts/0 First Unix98 pseudo-TTY 2154 1 = /dev/pts/1 Second Unix98 pseudo-TTY 2155 ... 2156 2157 These device nodes are automatically generated with 2158 the proper permissions and modes by mounting the 2159 devpts filesystem onto /dev/pts with the appropriate 2160 mount options (distribution dependent, however, on 2161 *most* distributions the appropriate options are 2162 "mode=0620,gid=<gid of the "tty" group>".) 2163 2164136 block Mylex DAC960 PCI RAID controller; ninth controller 2165 0 = /dev/rd/c8d0 First disk, whole disk 2166 8 = /dev/rd/c8d1 Second disk, whole disk 2167 ... 2168 248 = /dev/rd/c8d31 32nd disk, whole disk 2169 2170 Partitions are handled as for major 48. 2171 2172137 block Mylex DAC960 PCI RAID controller; tenth controller 2173 0 = /dev/rd/c9d0 First disk, whole disk 2174 8 = /dev/rd/c9d1 Second disk, whole disk 2175 ... 2176 248 = /dev/rd/c9d31 32nd disk, whole disk 2177 2178 Partitions are handled as for major 48. 2179 2180138 block Mylex DAC960 PCI RAID controller; eleventh controller 2181 0 = /dev/rd/c10d0 First disk, whole disk 2182 8 = /dev/rd/c10d1 Second disk, whole disk 2183 ... 2184 248 = /dev/rd/c10d31 32nd disk, whole disk 2185 2186 Partitions are handled as for major 48. 2187 2188139 block Mylex DAC960 PCI RAID controller; twelfth controller 2189 0 = /dev/rd/c11d0 First disk, whole disk 2190 8 = /dev/rd/c11d1 Second disk, whole disk 2191 ... 2192 248 = /dev/rd/c11d31 32nd disk, whole disk 2193 2194 Partitions are handled as for major 48. 2195 2196140 block Mylex DAC960 PCI RAID controller; thirteenth controller 2197 0 = /dev/rd/c12d0 First disk, whole disk 2198 8 = /dev/rd/c12d1 Second disk, whole disk 2199 ... 2200 248 = /dev/rd/c12d31 32nd disk, whole disk 2201 2202 Partitions are handled as for major 48. 2203 2204141 block Mylex DAC960 PCI RAID controller; fourteenth controller 2205 0 = /dev/rd/c13d0 First disk, whole disk 2206 8 = /dev/rd/c13d1 Second disk, whole disk 2207 ... 2208 248 = /dev/rd/c13d31 32nd disk, whole disk 2209 2210 Partitions are handled as for major 48. 2211 2212142 block Mylex DAC960 PCI RAID controller; fifteenth controller 2213 0 = /dev/rd/c14d0 First disk, whole disk 2214 8 = /dev/rd/c14d1 Second disk, whole disk 2215 ... 2216 248 = /dev/rd/c14d31 32nd disk, whole disk 2217 2218 Partitions are handled as for major 48. 2219 2220143 block Mylex DAC960 PCI RAID controller; sixteenth controller 2221 0 = /dev/rd/c15d0 First disk, whole disk 2222 8 = /dev/rd/c15d1 Second disk, whole disk 2223 ... 2224 248 = /dev/rd/c15d31 32nd disk, whole disk 2225 2226 Partitions are handled as for major 48. 2227 2228144 char Encapsulated PPP 2229 0 = /dev/pppox0 First PPP over Ethernet 2230 ... 2231 63 = /dev/pppox63 64th PPP over Ethernet 2232 2233 This is primarily used for ADSL. 2234 2235 The SST 5136-DN DeviceNet interface driver has been 2236 relocated to major 183 due to an unfortunate conflict. 2237 2238144 block Expansion Area #1 for more non-device (e.g. NFS) mounts 2239 0 = mounted device 256 2240 255 = mounted device 511 2241 2242145 char SAM9407-based soundcard 2243 0 = /dev/sam0_mixer 2244 1 = /dev/sam0_sequencer 2245 2 = /dev/sam0_midi00 2246 3 = /dev/sam0_dsp 2247 4 = /dev/sam0_audio 2248 6 = /dev/sam0_sndstat 2249 18 = /dev/sam0_midi01 2250 34 = /dev/sam0_midi02 2251 50 = /dev/sam0_midi03 2252 64 = /dev/sam1_mixer 2253 ... 2254 128 = /dev/sam2_mixer 2255 ... 2256 192 = /dev/sam3_mixer 2257 ... 2258 2259 Device functions match OSS, but offer a number of 2260 addons, which are sam9407 specific. OSS can be 2261 operated simultaneously, taking care of the codec. 2262 2263145 block Expansion Area #2 for more non-device (e.g. NFS) mounts 2264 0 = mounted device 512 2265 255 = mounted device 767 2266 2267146 char SYSTRAM SCRAMNet mirrored-memory network 2268 0 = /dev/scramnet0 First SCRAMNet device 2269 1 = /dev/scramnet1 Second SCRAMNet device 2270 ... 2271 2272146 block Expansion Area #3 for more non-device (e.g. NFS) mounts 2273 0 = mounted device 768 2274 255 = mounted device 1023 2275 2276147 char Aureal Semiconductor Vortex Audio device 2277 0 = /dev/aureal0 First Aureal Vortex 2278 1 = /dev/aureal1 Second Aureal Vortex 2279 ... 2280 2281147 block Distributed Replicated Block Device (DRBD) 2282 0 = /dev/drbd0 First DRBD device 2283 1 = /dev/drbd1 Second DRBD device 2284 ... 2285 2286148 char Technology Concepts serial card 2287 0 = /dev/ttyT0 First TCL port 2288 1 = /dev/ttyT1 Second TCL port 2289 ... 2290 2291149 char Technology Concepts serial card - alternate devices 2292 0 = /dev/cut0 Callout device for ttyT0 2293 1 = /dev/cut0 Callout device for ttyT1 2294 ... 2295 2296150 char Real-Time Linux FIFOs 2297 0 = /dev/rtf0 First RTLinux FIFO 2298 1 = /dev/rtf1 Second RTLinux FIFO 2299 ... 2300 2301151 char DPT I2O SmartRaid V controller 2302 0 = /dev/dpti0 First DPT I2O adapter 2303 1 = /dev/dpti1 Second DPT I2O adapter 2304 ... 2305 2306152 char EtherDrive Control Device 2307 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive 2308 1 = /dev/etherd/err Monitor errors 2309 2 = /dev/etherd/raw Raw AoE packet monitor 2310 2311152 block EtherDrive Block Devices 2312 0 = /dev/etherd/0 EtherDrive 0 2313 ... 2314 255 = /dev/etherd/255 EtherDrive 255 2315 2316153 char SPI Bus Interface (sometimes referred to as MicroWire) 2317 0 = /dev/spi0 First SPI device on the bus 2318 1 = /dev/spi1 Second SPI device on the bus 2319 ... 2320 15 = /dev/spi15 Sixteenth SPI device on the bus 2321 2322153 block Enhanced Metadisk RAID (EMD) storage units 2323 0 = /dev/emd/0 First unit 2324 1 = /dev/emd/0p1 Partition 1 on First unit 2325 2 = /dev/emd/0p2 Partition 2 on First unit 2326 ... 2327 15 = /dev/emd/0p15 Partition 15 on First unit 2328 2329 16 = /dev/emd/1 Second unit 2330 32 = /dev/emd/2 Third unit 2331 ... 2332 240 = /dev/emd/15 Sixteenth unit 2333 2334 Partitions are handled in the same way as for IDE 2335 disks (see major number 3) except that the limit on 2336 partitions is 15. 2337 2338154 char Specialix RIO serial card 2339 0 = /dev/ttySR0 First RIO port 2340 ... 2341 255 = /dev/ttySR255 256th RIO port 2342 2343155 char Specialix RIO serial card - alternate devices 2344 0 = /dev/cusr0 Callout device for ttySR0 2345 ... 2346 255 = /dev/cusr255 Callout device for ttySR255 2347 2348156 char Specialix RIO serial card 2349 0 = /dev/ttySR256 257th RIO port 2350 ... 2351 255 = /dev/ttySR511 512th RIO port 2352 2353157 char Specialix RIO serial card - alternate devices 2354 0 = /dev/cusr256 Callout device for ttySR256 2355 ... 2356 255 = /dev/cusr511 Callout device for ttySR511 2357 2358158 char Dialogic GammaLink fax driver 2359 0 = /dev/gfax0 GammaLink channel 0 2360 1 = /dev/gfax1 GammaLink channel 1 2361 ... 2362 2363159 char RESERVED 2364 2365159 block RESERVED 2366 2367160 char General Purpose Instrument Bus (GPIB) 2368 0 = /dev/gpib0 First GPIB bus 2369 1 = /dev/gpib1 Second GPIB bus 2370 ... 2371 2372160 block Carmel 8-port SATA Disks on First Controller 2373 0 = /dev/carmel/0 SATA disk 0 whole disk 2374 1 = /dev/carmel/0p1 SATA disk 0 partition 1 2375 ... 2376 31 = /dev/carmel/0p31 SATA disk 0 partition 31 2377 2378 32 = /dev/carmel/1 SATA disk 1 whole disk 2379 64 = /dev/carmel/2 SATA disk 2 whole disk 2380 ... 2381 224 = /dev/carmel/7 SATA disk 7 whole disk 2382 2383 Partitions are handled in the same way as for IDE 2384 disks (see major number 3) except that the limit on 2385 partitions is 31. 2386 2387161 char IrCOMM devices (IrDA serial/parallel emulation) 2388 0 = /dev/ircomm0 First IrCOMM device 2389 1 = /dev/ircomm1 Second IrCOMM device 2390 ... 2391 16 = /dev/irlpt0 First IrLPT device 2392 17 = /dev/irlpt1 Second IrLPT device 2393 ... 2394 2395161 block Carmel 8-port SATA Disks on Second Controller 2396 0 = /dev/carmel/8 SATA disk 8 whole disk 2397 1 = /dev/carmel/8p1 SATA disk 8 partition 1 2398 ... 2399 31 = /dev/carmel/8p31 SATA disk 8 partition 31 2400 2401 32 = /dev/carmel/9 SATA disk 9 whole disk 2402 64 = /dev/carmel/10 SATA disk 10 whole disk 2403 ... 2404 224 = /dev/carmel/15 SATA disk 15 whole disk 2405 2406 Partitions are handled in the same way as for IDE 2407 disks (see major number 3) except that the limit on 2408 partitions is 31. 2409 2410162 char Raw block device interface 2411 0 = /dev/rawctl Raw I/O control device 2412 1 = /dev/raw/raw1 First raw I/O device 2413 2 = /dev/raw/raw2 Second raw I/O device 2414 ... 2415 max minor number of raw device is set by kernel config 2416 MAX_RAW_DEVS or raw module parameter 'max_raw_devs' 2417 2418163 char 2419 2420164 char Chase Research AT/PCI-Fast serial card 2421 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0 2422 ... 2423 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15 2424 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0 2425 ... 2426 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15 2427 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0 2428 ... 2429 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15 2430 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0 2431 ... 2432 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15 2433 2434165 char Chase Research AT/PCI-Fast serial card - alternate devices 2435 0 = /dev/cuch0 Callout device for ttyCH0 2436 ... 2437 63 = /dev/cuch63 Callout device for ttyCH63 2438 2439166 char ACM USB modems 2440 0 = /dev/ttyACM0 First ACM modem 2441 1 = /dev/ttyACM1 Second ACM modem 2442 ... 2443 2444167 char ACM USB modems - alternate devices 2445 0 = /dev/cuacm0 Callout device for ttyACM0 2446 1 = /dev/cuacm1 Callout device for ttyACM1 2447 ... 2448 2449168 char Eracom CSA7000 PCI encryption adaptor 2450 0 = /dev/ecsa0 First CSA7000 2451 1 = /dev/ecsa1 Second CSA7000 2452 ... 2453 2454169 char Eracom CSA8000 PCI encryption adaptor 2455 0 = /dev/ecsa8-0 First CSA8000 2456 1 = /dev/ecsa8-1 Second CSA8000 2457 ... 2458 2459170 char AMI MegaRAC remote access controller 2460 0 = /dev/megarac0 First MegaRAC card 2461 1 = /dev/megarac1 Second MegaRAC card 2462 ... 2463 2464171 char Reserved for IEEE 1394 (Firewire) 2465 2466172 char Moxa Intellio serial card 2467 0 = /dev/ttyMX0 First Moxa port 2468 1 = /dev/ttyMX1 Second Moxa port 2469 ... 2470 127 = /dev/ttyMX127 128th Moxa port 2471 128 = /dev/moxactl Moxa control port 2472 2473173 char Moxa Intellio serial card - alternate devices 2474 0 = /dev/cumx0 Callout device for ttyMX0 2475 1 = /dev/cumx1 Callout device for ttyMX1 2476 ... 2477 127 = /dev/cumx127 Callout device for ttyMX127 2478 2479174 char SmartIO serial card 2480 0 = /dev/ttySI0 First SmartIO port 2481 1 = /dev/ttySI1 Second SmartIO port 2482 ... 2483 2484175 char SmartIO serial card - alternate devices 2485 0 = /dev/cusi0 Callout device for ttySI0 2486 1 = /dev/cusi1 Callout device for ttySI1 2487 ... 2488 2489176 char nCipher nFast PCI crypto accelerator 2490 0 = /dev/nfastpci0 First nFast PCI device 2491 1 = /dev/nfastpci1 First nFast PCI device 2492 ... 2493 2494177 char TI PCILynx memory spaces 2495 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card 2496 ... 2497 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card 2498 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card 2499 ... 2500 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card 2501 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card 2502 ... 2503 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card 2504 2505178 char Giganet cLAN1xxx virtual interface adapter 2506 0 = /dev/clanvi0 First cLAN adapter 2507 1 = /dev/clanvi1 Second cLAN adapter 2508 ... 2509 2510179 block MMC block devices 2511 0 = /dev/mmcblk0 First SD/MMC card 2512 1 = /dev/mmcblk0p1 First partition on first MMC card 2513 8 = /dev/mmcblk1 Second SD/MMC card 2514 ... 2515 2516 The start of next SD/MMC card can be configured with 2517 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe 2518 time using the mmcblk.perdev_minors option. That would 2519 bump the offset between each card to be the configured 2520 value instead of the default 8. 2521 2522179 char CCube DVXChip-based PCI products 2523 0 = /dev/dvxirq0 First DVX device 2524 1 = /dev/dvxirq1 Second DVX device 2525 ... 2526 2527180 char USB devices 2528 0 = /dev/usb/lp0 First USB printer 2529 ... 2530 15 = /dev/usb/lp15 16th USB printer 2531 48 = /dev/usb/scanner0 First USB scanner 2532 ... 2533 63 = /dev/usb/scanner15 16th USB scanner 2534 64 = /dev/usb/rio500 Diamond Rio 500 2535 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de) 2536 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD) 2537 96 = /dev/usb/hiddev0 1st USB HID device 2538 ... 2539 111 = /dev/usb/hiddev15 16th USB HID device 2540 112 = /dev/usb/auer0 1st auerswald ISDN device 2541 ... 2542 127 = /dev/usb/auer15 16th auerswald ISDN device 2543 128 = /dev/usb/brlvgr0 First Braille Voyager device 2544 ... 2545 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device 2546 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device 2547 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device 2548 ... 2549 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device 2550 144 = /dev/usb/lcd USB LCD device 2551 160 = /dev/usb/legousbtower0 1st USB Legotower device 2552 ... 2553 175 = /dev/usb/legousbtower15 16th USB Legotower device 2554 176 = /dev/usb/usbtmc1 First USB TMC device 2555 ... 2556 191 = /dev/usb/usbtmc16 16th USB TMC device 2557 192 = /dev/usb/yurex1 First USB Yurex device 2558 ... 2559 209 = /dev/usb/yurex16 16th USB Yurex device 2560 2561180 block USB block devices 2562 0 = /dev/uba First USB block device 2563 8 = /dev/ubb Second USB block device 2564 16 = /dev/ubc Third USB block device 2565 ... 2566 2567181 char Conrad Electronic parallel port radio clocks 2568 0 = /dev/pcfclock0 First Conrad radio clock 2569 1 = /dev/pcfclock1 Second Conrad radio clock 2570 ... 2571 2572182 char Picture Elements THR2 binarizer 2573 0 = /dev/pethr0 First THR2 board 2574 1 = /dev/pethr1 Second THR2 board 2575 ... 2576 2577183 char SST 5136-DN DeviceNet interface 2578 0 = /dev/ss5136dn0 First DeviceNet interface 2579 1 = /dev/ss5136dn1 Second DeviceNet interface 2580 ... 2581 2582 This device used to be assigned to major number 144. 2583 It had to be moved due to an unfortunate conflict. 2584 2585184 char Picture Elements' video simulator/sender 2586 0 = /dev/pevss0 First sender board 2587 1 = /dev/pevss1 Second sender board 2588 ... 2589 2590185 char InterMezzo high availability file system 2591 0 = /dev/intermezzo0 First cache manager 2592 1 = /dev/intermezzo1 Second cache manager 2593 ... 2594 2595 See http://web.archive.org/web/20080115195241/ 2596 http://inter-mezzo.org/index.html 2597 2598186 char Object-based storage control device 2599 0 = /dev/obd0 First obd control device 2600 1 = /dev/obd1 Second obd control device 2601 ... 2602 2603 See ftp://ftp.lustre.org/pub/obd for code and information. 2604 2605187 char DESkey hardware encryption device 2606 0 = /dev/deskey0 First DES key 2607 1 = /dev/deskey1 Second DES key 2608 ... 2609 2610188 char USB serial converters 2611 0 = /dev/ttyUSB0 First USB serial converter 2612 1 = /dev/ttyUSB1 Second USB serial converter 2613 ... 2614 2615189 char USB serial converters - alternate devices 2616 0 = /dev/cuusb0 Callout device for ttyUSB0 2617 1 = /dev/cuusb1 Callout device for ttyUSB1 2618 ... 2619 2620190 char Kansas City tracker/tuner card 2621 0 = /dev/kctt0 First KCT/T card 2622 1 = /dev/kctt1 Second KCT/T card 2623 ... 2624 2625191 char Reserved for PCMCIA 2626 2627192 char Kernel profiling interface 2628 0 = /dev/profile Profiling control device 2629 1 = /dev/profile0 Profiling device for CPU 0 2630 2 = /dev/profile1 Profiling device for CPU 1 2631 ... 2632 2633193 char Kernel event-tracing interface 2634 0 = /dev/trace Tracing control device 2635 1 = /dev/trace0 Tracing device for CPU 0 2636 2 = /dev/trace1 Tracing device for CPU 1 2637 ... 2638 2639194 char linVideoStreams (LINVS) 2640 0 = /dev/mvideo/status0 Video compression status 2641 1 = /dev/mvideo/stream0 Video stream 2642 2 = /dev/mvideo/frame0 Single compressed frame 2643 3 = /dev/mvideo/rawframe0 Raw uncompressed frame 2644 4 = /dev/mvideo/codec0 Direct codec access 2645 5 = /dev/mvideo/video4linux0 Video4Linux compatibility 2646 2647 16 = /dev/mvideo/status1 Second device 2648 ... 2649 32 = /dev/mvideo/status2 Third device 2650 ... 2651 ... 2652 240 = /dev/mvideo/status15 16th device 2653 ... 2654 2655195 char Nvidia graphics devices 2656 0 = /dev/nvidia0 First Nvidia card 2657 1 = /dev/nvidia1 Second Nvidia card 2658 ... 2659 255 = /dev/nvidiactl Nvidia card control device 2660 2661196 char Tormenta T1 card 2662 0 = /dev/tor/0 Master control channel for all cards 2663 1 = /dev/tor/1 First DS0 2664 2 = /dev/tor/2 Second DS0 2665 ... 2666 48 = /dev/tor/48 48th DS0 2667 49 = /dev/tor/49 First pseudo-channel 2668 50 = /dev/tor/50 Second pseudo-channel 2669 ... 2670 2671197 char OpenTNF tracing facility 2672 0 = /dev/tnf/t0 Trace 0 data extraction 2673 1 = /dev/tnf/t1 Trace 1 data extraction 2674 ... 2675 128 = /dev/tnf/status Tracing facility status 2676 130 = /dev/tnf/trace Tracing device 2677 2678198 char Total Impact TPMP2 quad coprocessor PCI card 2679 0 = /dev/tpmp2/0 First card 2680 1 = /dev/tpmp2/1 Second card 2681 ... 2682 2683199 char Veritas volume manager (VxVM) volumes 2684 0 = /dev/vx/rdsk/*/* First volume 2685 1 = /dev/vx/rdsk/*/* Second volume 2686 ... 2687 2688199 block Veritas volume manager (VxVM) volumes 2689 0 = /dev/vx/dsk/*/* First volume 2690 1 = /dev/vx/dsk/*/* Second volume 2691 ... 2692 2693 The namespace in these directories is maintained by 2694 the user space VxVM software. 2695 2696200 char Veritas VxVM configuration interface 2697 0 = /dev/vx/config Configuration access node 2698 1 = /dev/vx/trace Volume i/o trace access node 2699 2 = /dev/vx/iod Volume i/o daemon access node 2700 3 = /dev/vx/info Volume information access node 2701 4 = /dev/vx/task Volume tasks access node 2702 5 = /dev/vx/taskmon Volume tasks monitor daemon 2703 2704201 char Veritas VxVM dynamic multipathing driver 2705 0 = /dev/vx/rdmp/* First multipath device 2706 1 = /dev/vx/rdmp/* Second multipath device 2707 ... 2708201 block Veritas VxVM dynamic multipathing driver 2709 0 = /dev/vx/dmp/* First multipath device 2710 1 = /dev/vx/dmp/* Second multipath device 2711 ... 2712 2713 The namespace in these directories is maintained by 2714 the user space VxVM software. 2715 2716202 char CPU model-specific registers 2717 0 = /dev/cpu/0/msr MSRs on CPU 0 2718 1 = /dev/cpu/1/msr MSRs on CPU 1 2719 ... 2720 2721202 block Xen Virtual Block Device 2722 0 = /dev/xvda First Xen VBD whole disk 2723 16 = /dev/xvdb Second Xen VBD whole disk 2724 32 = /dev/xvdc Third Xen VBD whole disk 2725 ... 2726 240 = /dev/xvdp Sixteenth Xen VBD whole disk 2727 2728 Partitions are handled in the same way as for IDE 2729 disks (see major number 3) except that the limit on 2730 partitions is 15. 2731 2732203 char CPU CPUID information 2733 0 = /dev/cpu/0/cpuid CPUID on CPU 0 2734 1 = /dev/cpu/1/cpuid CPUID on CPU 1 2735 ... 2736 2737204 char Low-density serial ports 2738 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0 2739 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1 2740 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2 2741 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3 2742 4 = /dev/ttyFB0 Intel Footbridge (ARM) 2743 5 = /dev/ttySA0 StrongARM builtin serial port 0 2744 6 = /dev/ttySA1 StrongARM builtin serial port 1 2745 7 = /dev/ttySA2 StrongARM builtin serial port 2 2746 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0 2747 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1 2748 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2 2749 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3 2750 12 = /dev/ttyFW0 Firmware console - port 0 2751 13 = /dev/ttyFW1 Firmware console - port 1 2752 14 = /dev/ttyFW2 Firmware console - port 2 2753 15 = /dev/ttyFW3 Firmware console - port 3 2754 16 = /dev/ttyAM0 ARM "AMBA" serial port 0 2755 ... 2756 31 = /dev/ttyAM15 ARM "AMBA" serial port 15 2757 32 = /dev/ttyDB0 DataBooster serial port 0 2758 ... 2759 39 = /dev/ttyDB7 DataBooster serial port 7 2760 40 = /dev/ttySG0 SGI Altix console port 2761 41 = /dev/ttySMX0 Motorola i.MX - port 0 2762 42 = /dev/ttySMX1 Motorola i.MX - port 1 2763 43 = /dev/ttySMX2 Motorola i.MX - port 2 2764 44 = /dev/ttyMM0 Marvell MPSC - port 0 2765 45 = /dev/ttyMM1 Marvell MPSC - port 1 2766 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0 2767 ... 2768 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5 2769 50 = /dev/ttyIOC0 Altix serial card 2770 ... 2771 81 = /dev/ttyIOC31 Altix serial card 2772 82 = /dev/ttyVR0 NEC VR4100 series SIU 2773 83 = /dev/ttyVR1 NEC VR4100 series DSIU 2774 84 = /dev/ttyIOC84 Altix ioc4 serial card 2775 ... 2776 115 = /dev/ttyIOC115 Altix ioc4 serial card 2777 116 = /dev/ttySIOC0 Altix ioc3 serial card 2778 ... 2779 147 = /dev/ttySIOC31 Altix ioc3 serial card 2780 148 = /dev/ttyPSC0 PPC PSC - port 0 2781 ... 2782 153 = /dev/ttyPSC5 PPC PSC - port 5 2783 154 = /dev/ttyAT0 ATMEL serial port 0 2784 ... 2785 169 = /dev/ttyAT15 ATMEL serial port 15 2786 170 = /dev/ttyNX0 Hilscher netX serial port 0 2787 ... 2788 185 = /dev/ttyNX15 Hilscher netX serial port 15 2789 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation 2790 187 = /dev/ttyUL0 Xilinx uartlite - port 0 2791 ... 2792 190 = /dev/ttyUL3 Xilinx uartlite - port 3 2793 191 = /dev/xvc0 Xen virtual console - port 0 2794 192 = /dev/ttyPZ0 pmac_zilog - port 0 2795 ... 2796 195 = /dev/ttyPZ3 pmac_zilog - port 3 2797 196 = /dev/ttyTX0 TX39/49 serial port 0 2798 ... 2799 204 = /dev/ttyTX7 TX39/49 serial port 7 2800 205 = /dev/ttySC0 SC26xx serial port 0 2801 206 = /dev/ttySC1 SC26xx serial port 1 2802 207 = /dev/ttySC2 SC26xx serial port 2 2803 208 = /dev/ttySC3 SC26xx serial port 3 2804 209 = /dev/ttyMAX0 MAX3100 serial port 0 2805 210 = /dev/ttyMAX1 MAX3100 serial port 1 2806 211 = /dev/ttyMAX2 MAX3100 serial port 2 2807 212 = /dev/ttyMAX3 MAX3100 serial port 3 2808 2809205 char Low-density serial ports (alternate device) 2810 0 = /dev/culu0 Callout device for ttyLU0 2811 1 = /dev/culu1 Callout device for ttyLU1 2812 2 = /dev/culu2 Callout device for ttyLU2 2813 3 = /dev/culu3 Callout device for ttyLU3 2814 4 = /dev/cufb0 Callout device for ttyFB0 2815 5 = /dev/cusa0 Callout device for ttySA0 2816 6 = /dev/cusa1 Callout device for ttySA1 2817 7 = /dev/cusa2 Callout device for ttySA2 2818 8 = /dev/cusc0 Callout device for ttySC0 2819 9 = /dev/cusc1 Callout device for ttySC1 2820 10 = /dev/cusc2 Callout device for ttySC2 2821 11 = /dev/cusc3 Callout device for ttySC3 2822 12 = /dev/cufw0 Callout device for ttyFW0 2823 13 = /dev/cufw1 Callout device for ttyFW1 2824 14 = /dev/cufw2 Callout device for ttyFW2 2825 15 = /dev/cufw3 Callout device for ttyFW3 2826 16 = /dev/cuam0 Callout device for ttyAM0 2827 ... 2828 31 = /dev/cuam15 Callout device for ttyAM15 2829 32 = /dev/cudb0 Callout device for ttyDB0 2830 ... 2831 39 = /dev/cudb7 Callout device for ttyDB7 2832 40 = /dev/cusg0 Callout device for ttySG0 2833 41 = /dev/ttycusmx0 Callout device for ttySMX0 2834 42 = /dev/ttycusmx1 Callout device for ttySMX1 2835 43 = /dev/ttycusmx2 Callout device for ttySMX2 2836 46 = /dev/cucpm0 Callout device for ttyCPM0 2837 ... 2838 49 = /dev/cucpm5 Callout device for ttyCPM5 2839 50 = /dev/cuioc40 Callout device for ttyIOC40 2840 ... 2841 81 = /dev/cuioc431 Callout device for ttyIOC431 2842 82 = /dev/cuvr0 Callout device for ttyVR0 2843 83 = /dev/cuvr1 Callout device for ttyVR1 2844 2845206 char OnStream SC-x0 tape devices 2846 0 = /dev/osst0 First OnStream SCSI tape, mode 0 2847 1 = /dev/osst1 Second OnStream SCSI tape, mode 0 2848 ... 2849 32 = /dev/osst0l First OnStream SCSI tape, mode 1 2850 33 = /dev/osst1l Second OnStream SCSI tape, mode 1 2851 ... 2852 64 = /dev/osst0m First OnStream SCSI tape, mode 2 2853 65 = /dev/osst1m Second OnStream SCSI tape, mode 2 2854 ... 2855 96 = /dev/osst0a First OnStream SCSI tape, mode 3 2856 97 = /dev/osst1a Second OnStream SCSI tape, mode 3 2857 ... 2858 128 = /dev/nosst0 No rewind version of /dev/osst0 2859 129 = /dev/nosst1 No rewind version of /dev/osst1 2860 ... 2861 160 = /dev/nosst0l No rewind version of /dev/osst0l 2862 161 = /dev/nosst1l No rewind version of /dev/osst1l 2863 ... 2864 192 = /dev/nosst0m No rewind version of /dev/osst0m 2865 193 = /dev/nosst1m No rewind version of /dev/osst1m 2866 ... 2867 224 = /dev/nosst0a No rewind version of /dev/osst0a 2868 225 = /dev/nosst1a No rewind version of /dev/osst1a 2869 ... 2870 2871 The OnStream SC-x0 SCSI tapes do not support the 2872 standard SCSI SASD command set and therefore need 2873 their own driver "osst". Note that the IDE, USB (and 2874 maybe ParPort) versions may be driven via ide-scsi or 2875 usb-storage SCSI emulation and this osst device and 2876 driver as well. The ADR-x0 drives are QIC-157 2877 compliant and don't need osst. 2878 2879207 char Compaq ProLiant health feature indicate 2880 0 = /dev/cpqhealth/cpqw Redirector interface 2881 1 = /dev/cpqhealth/crom EISA CROM 2882 2 = /dev/cpqhealth/cdt Data Table 2883 3 = /dev/cpqhealth/cevt Event Log 2884 4 = /dev/cpqhealth/casr Automatic Server Recovery 2885 5 = /dev/cpqhealth/cecc ECC Memory 2886 6 = /dev/cpqhealth/cmca Machine Check Architecture 2887 7 = /dev/cpqhealth/ccsm Deprecated CDT 2888 8 = /dev/cpqhealth/cnmi NMI Handling 2889 9 = /dev/cpqhealth/css Sideshow Management 2890 10 = /dev/cpqhealth/cram CMOS interface 2891 11 = /dev/cpqhealth/cpci PCI IRQ interface 2892 2893208 char User space serial ports 2894 0 = /dev/ttyU0 First user space serial port 2895 1 = /dev/ttyU1 Second user space serial port 2896 ... 2897 2898209 char User space serial ports (alternate devices) 2899 0 = /dev/cuu0 Callout device for ttyU0 2900 1 = /dev/cuu1 Callout device for ttyU1 2901 ... 2902 2903210 char SBE, Inc. sync/async serial card 2904 0 = /dev/sbei/wxcfg0 Configuration device for board 0 2905 1 = /dev/sbei/dld0 Download device for board 0 2906 2 = /dev/sbei/wan00 WAN device, port 0, board 0 2907 3 = /dev/sbei/wan01 WAN device, port 1, board 0 2908 4 = /dev/sbei/wan02 WAN device, port 2, board 0 2909 5 = /dev/sbei/wan03 WAN device, port 3, board 0 2910 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0 2911 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0 2912 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0 2913 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0 2914 10 = /dev/sbei/wxcfg1 Configuration device for board 1 2915 11 = /dev/sbei/dld1 Download device for board 1 2916 12 = /dev/sbei/wan10 WAN device, port 0, board 1 2917 13 = /dev/sbei/wan11 WAN device, port 1, board 1 2918 14 = /dev/sbei/wan12 WAN device, port 2, board 1 2919 15 = /dev/sbei/wan13 WAN device, port 3, board 1 2920 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1 2921 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1 2922 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1 2923 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1 2924 ... 2925 2926 Yes, each board is really spaced 10 (decimal) apart. 2927 2928211 char Addinum CPCI1500 digital I/O card 2929 0 = /dev/addinum/cpci1500/0 First CPCI1500 card 2930 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card 2931 ... 2932 2933212 char LinuxTV.org DVB driver subsystem 2934 0 = /dev/dvb/adapter0/video0 first video decoder of first card 2935 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card 2936 2 = /dev/dvb/adapter0/sec0 (obsolete/unused) 2937 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card 2938 4 = /dev/dvb/adapter0/demux0 first demux device of first card 2939 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card 2940 6 = /dev/dvb/adapter0/ca0 first common access port of first card 2941 7 = /dev/dvb/adapter0/net0 first network device of first card 2942 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card 2943 9 = /dev/dvb/adapter0/video1 second video decoder of first card 2944 ... 2945 64 = /dev/dvb/adapter1/video0 first video decoder of second card 2946 ... 2947 128 = /dev/dvb/adapter2/video0 first video decoder of third card 2948 ... 2949 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card 2950 2951216 char Bluetooth RFCOMM TTY devices 2952 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device 2953 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device 2954 ... 2955 2956217 char Bluetooth RFCOMM TTY devices (alternate devices) 2957 0 = /dev/curf0 Callout device for rfcomm0 2958 1 = /dev/curf1 Callout device for rfcomm1 2959 ... 2960 2961218 char The Logical Company bus Unibus/Qbus adapters 2962 0 = /dev/logicalco/bci/0 First bus adapter 2963 1 = /dev/logicalco/bci/1 First bus adapter 2964 ... 2965 2966219 char The Logical Company DCI-1300 digital I/O card 2967 0 = /dev/logicalco/dci1300/0 First DCI-1300 card 2968 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card 2969 ... 2970 2971220 char Myricom Myrinet "GM" board 2972 0 = /dev/myricom/gm0 First Myrinet GM board 2973 1 = /dev/myricom/gmp0 First board "root access" 2974 2 = /dev/myricom/gm1 Second Myrinet GM board 2975 3 = /dev/myricom/gmp1 Second board "root access" 2976 ... 2977 2978221 char VME bus 2979 0 = /dev/bus/vme/m0 First master image 2980 1 = /dev/bus/vme/m1 Second master image 2981 2 = /dev/bus/vme/m2 Third master image 2982 3 = /dev/bus/vme/m3 Fourth master image 2983 4 = /dev/bus/vme/s0 First slave image 2984 5 = /dev/bus/vme/s1 Second slave image 2985 6 = /dev/bus/vme/s2 Third slave image 2986 7 = /dev/bus/vme/s3 Fourth slave image 2987 8 = /dev/bus/vme/ctl Control 2988 2989 It is expected that all VME bus drivers will use the 2990 same interface. For interface documentation see 2991 http://www.vmelinux.org/. 2992 2993224 char A2232 serial card 2994 0 = /dev/ttyY0 First A2232 port 2995 1 = /dev/ttyY1 Second A2232 port 2996 ... 2997 2998225 char A2232 serial card (alternate devices) 2999 0 = /dev/cuy0 Callout device for ttyY0 3000 1 = /dev/cuy1 Callout device for ttyY1 3001 ... 3002 3003226 char Direct Rendering Infrastructure (DRI) 3004 0 = /dev/dri/card0 First graphics card 3005 1 = /dev/dri/card1 Second graphics card 3006 ... 3007 3008227 char IBM 3270 terminal Unix tty access 3009 1 = /dev/3270/tty1 First 3270 terminal 3010 2 = /dev/3270/tty2 Seconds 3270 terminal 3011 ... 3012 3013228 char IBM 3270 terminal block-mode access 3014 0 = /dev/3270/tub Controlling interface 3015 1 = /dev/3270/tub1 First 3270 terminal 3016 2 = /dev/3270/tub2 Second 3270 terminal 3017 ... 3018 3019229 char IBM iSeries/pSeries virtual console 3020 0 = /dev/hvc0 First console port 3021 1 = /dev/hvc1 Second console port 3022 ... 3023 3024230 char IBM iSeries virtual tape 3025 0 = /dev/iseries/vt0 First virtual tape, mode 0 3026 1 = /dev/iseries/vt1 Second virtual tape, mode 0 3027 ... 3028 32 = /dev/iseries/vt0l First virtual tape, mode 1 3029 33 = /dev/iseries/vt1l Second virtual tape, mode 1 3030 ... 3031 64 = /dev/iseries/vt0m First virtual tape, mode 2 3032 65 = /dev/iseries/vt1m Second virtual tape, mode 2 3033 ... 3034 96 = /dev/iseries/vt0a First virtual tape, mode 3 3035 97 = /dev/iseries/vt1a Second virtual tape, mode 3 3036 ... 3037 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind 3038 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind 3039 ... 3040 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind 3041 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind 3042 ... 3043 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind 3044 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind 3045 ... 3046 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind 3047 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind 3048 ... 3049 3050 "No rewind" refers to the omission of the default 3051 automatic rewind on device close. The MTREW or MTOFFL 3052 ioctl()'s can be used to rewind the tape regardless of 3053 the device used to access it. 3054 3055231 char InfiniBand 3056 0 = /dev/infiniband/umad0 3057 1 = /dev/infiniband/umad1 3058 ... 3059 63 = /dev/infiniband/umad63 63rd InfiniBandMad device 3060 64 = /dev/infiniband/issm0 First InfiniBand IsSM device 3061 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device 3062 ... 3063 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device 3064 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device 3065 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device 3066 ... 3067 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device 3068 3069232 char Biometric Devices 3070 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device 3071 1 = /dev/biometric/sensor0/iris first iris sensor on first device 3072 2 = /dev/biometric/sensor0/retina first retina sensor on first device 3073 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device 3074 4 = /dev/biometric/sensor0/facial first facial sensor on first device 3075 5 = /dev/biometric/sensor0/hand first hand sensor on first device 3076 ... 3077 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device 3078 ... 3079 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device 3080 ... 3081 3082233 char PathScale InfiniPath interconnect 3083 0 = /dev/ipath Primary device for programs (any unit) 3084 1 = /dev/ipath0 Access specifically to unit 0 3085 2 = /dev/ipath1 Access specifically to unit 1 3086 ... 3087 4 = /dev/ipath3 Access specifically to unit 3 3088 129 = /dev/ipath_sma Device used by Subnet Management Agent 3089 130 = /dev/ipath_diag Device used by diagnostics programs 3090 3091234-239 UNASSIGNED 3092 3093240-254 char LOCAL/EXPERIMENTAL USE 3094 3095240-254 block LOCAL/EXPERIMENTAL USE 3096 Allocated for local/experimental use. For devices not 3097 assigned official numbers, these ranges should be 3098 used in order to avoid conflicting with future assignments. 3099 3100255 char RESERVED 3101 3102255 block RESERVED 3103 3104 This major is reserved to assist the expansion to a 3105 larger number space. No device nodes with this major 3106 should ever be created on the filesystem. 3107 (This is probably not true anymore, but I'll leave it 3108 for now /Torben) 3109 3110---LARGE MAJORS!!!!!--- 3111 3112256 char Equinox SST multi-port serial boards 3113 0 = /dev/ttyEQ0 First serial port on first Equinox SST board 3114 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board 3115 128 = /dev/ttyEQ128 First serial port on second Equinox SST board 3116 ... 3117 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board 3118 3119256 block Resident Flash Disk Flash Translation Layer 3120 0 = /dev/rfda First RFD FTL layer 3121 16 = /dev/rfdb Second RFD FTL layer 3122 ... 3123 240 = /dev/rfdp 16th RFD FTL layer 3124 3125257 char Phoenix Technologies Cryptographic Services Driver 3126 0 = /dev/ptlsec Crypto Services Driver 3127 3128257 block SSFDC Flash Translation Layer filesystem 3129 0 = /dev/ssfdca First SSFDC layer 3130 8 = /dev/ssfdcb Second SSFDC layer 3131 16 = /dev/ssfdcc Third SSFDC layer 3132 24 = /dev/ssfdcd 4th SSFDC layer 3133 32 = /dev/ssfdce 5th SSFDC layer 3134 40 = /dev/ssfdcf 6th SSFDC layer 3135 48 = /dev/ssfdcg 7th SSFDC layer 3136 56 = /dev/ssfdch 8th SSFDC layer 3137 3138258 block ROM/Flash read-only translation layer 3139 0 = /dev/blockrom0 First ROM card's translation layer interface 3140 1 = /dev/blockrom1 Second ROM card's translation layer interface 3141 ... 3142 3143259 block Block Extended Major 3144 Used dynamically to hold additional partition minor 3145 numbers and allow large numbers of partitions per device 3146 3147259 char FPGA configuration interfaces 3148 0 = /dev/icap0 First Xilinx internal configuration 3149 1 = /dev/icap1 Second Xilinx internal configuration 3150 3151260 char OSD (Object-based-device) SCSI Device 3152 0 = /dev/osd0 First OSD Device 3153 1 = /dev/osd1 Second OSD Device 3154 ... 3155 255 = /dev/osd255 256th OSD Device 3156 3157 **** ADDITIONAL /dev DIRECTORY ENTRIES 3158 3159This section details additional entries that should or may exist in 3160the /dev directory. It is preferred that symbolic links use the same 3161form (absolute or relative) as is indicated here. Links are 3162classified as "hard" or "symbolic" depending on the preferred type of 3163link; if possible, the indicated type of link should be used. 3164 3165 3166 Compulsory links 3167 3168These links should exist on all systems: 3169 3170/dev/fd /proc/self/fd symbolic File descriptors 3171/dev/stdin fd/0 symbolic stdin file descriptor 3172/dev/stdout fd/1 symbolic stdout file descriptor 3173/dev/stderr fd/2 symbolic stderr file descriptor 3174/dev/nfsd socksys symbolic Required by iBCS-2 3175/dev/X0R null symbolic Required by iBCS-2 3176 3177Note: /dev/X0R is <letter X>-<digit 0>-<letter R>. 3178 3179 Recommended links 3180 3181It is recommended that these links exist on all systems: 3182 3183/dev/core /proc/kcore symbolic Backward compatibility 3184/dev/ramdisk ram0 symbolic Backward compatibility 3185/dev/ftape qft0 symbolic Backward compatibility 3186/dev/bttv0 video0 symbolic Backward compatibility 3187/dev/radio radio0 symbolic Backward compatibility 3188/dev/i2o* /dev/i2o/* symbolic Backward compatibility 3189/dev/scd? sr? hard Alternate SCSI CD-ROM name 3190 3191 Locally defined links 3192 3193The following links may be established locally to conform to the 3194configuration of the system. This is merely a tabulation of existing 3195practice, and does not constitute a recommendation. However, if they 3196exist, they should have the following uses. 3197 3198/dev/mouse mouse port symbolic Current mouse device 3199/dev/tape tape device symbolic Current tape device 3200/dev/cdrom CD-ROM device symbolic Current CD-ROM device 3201/dev/cdwriter CD-writer symbolic Current CD-writer device 3202/dev/scanner scanner symbolic Current scanner device 3203/dev/modem modem port symbolic Current dialout device 3204/dev/root root device symbolic Current root filesystem 3205/dev/swap swap device symbolic Current swap device 3206 3207/dev/modem should not be used for a modem which supports dialin as 3208well as dialout, as it tends to cause lock file problems. If it 3209exists, /dev/modem should point to the appropriate primary TTY device 3210(the use of the alternate callout devices is deprecated). 3211 3212For SCSI devices, /dev/tape and /dev/cdrom should point to the 3213``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas 3214/dev/cdwriter and /dev/scanner should point to the appropriate generic 3215SCSI devices (/dev/sg*). 3216 3217/dev/mouse may point to a primary serial TTY device, a hardware mouse 3218device, or a socket for a mouse driver program (e.g. /dev/gpmdata). 3219 3220 Sockets and pipes 3221 3222Non-transient sockets and named pipes may exist in /dev. Common entries are: 3223 3224/dev/printer socket lpd local socket 3225/dev/log socket syslog local socket 3226/dev/gpmdata socket gpm mouse multiplexer 3227 3228 Mount points 3229 3230The following names are reserved for mounting special filesystems 3231under /dev. These special filesystems provide kernel interfaces that 3232cannot be provided with standard device nodes. 3233 3234/dev/pts devpts PTY slave filesystem 3235/dev/shm tmpfs POSIX shared memory maintenance access 3236 3237 **** TERMINAL DEVICES 3238 3239Terminal, or TTY devices are a special class of character devices. A 3240terminal device is any device that could act as a controlling terminal 3241for a session; this includes virtual consoles, serial ports, and 3242pseudoterminals (PTYs). 3243 3244All terminal devices share a common set of capabilities known as line 3245disciplines; these include the common terminal line discipline as well 3246as SLIP and PPP modes. 3247 3248All terminal devices are named similarly; this section explains the 3249naming and use of the various types of TTYs. Note that the naming 3250conventions include several historical warts; some of these are 3251Linux-specific, some were inherited from other systems, and some 3252reflect Linux outgrowing a borrowed convention. 3253 3254A hash mark (#) in a device name is used here to indicate a decimal 3255number without leading zeroes. 3256 3257 Virtual consoles and the console device 3258 3259Virtual consoles are full-screen terminal displays on the system video 3260monitor. Virtual consoles are named /dev/tty#, with numbering 3261starting at /dev/tty1; /dev/tty0 is the current virtual console. 3262/dev/tty0 is the device that should be used to access the system video 3263card on those architectures for which the frame buffer devices 3264(/dev/fb*) are not applicable. Do not use /dev/console 3265for this purpose. 3266 3267The console device, /dev/console, is the device to which system 3268messages should be sent, and on which logins should be permitted in 3269single-user mode. Starting with Linux 2.1.71, /dev/console is managed 3270by the kernel; for previous versions it should be a symbolic link to 3271either /dev/tty0, a specific virtual console such as /dev/tty1, or to 3272a serial port primary (tty*, not cu*) device, depending on the 3273configuration of the system. 3274 3275 Serial ports 3276 3277Serial ports are RS-232 serial ports and any device which simulates 3278one, either in hardware (such as internal modems) or in software (such 3279as the ISDN driver.) Under Linux, each serial ports has two device 3280names, the primary or callin device and the alternate or callout one. 3281Each kind of device is indicated by a different letter. For any 3282letter X, the names of the devices are /dev/ttyX# and /dev/cux#, 3283respectively; for historical reasons, /dev/ttyS# and /dev/ttyC# 3284correspond to /dev/cua# and /dev/cub#. In the future, it should be 3285expected that multiple letters will be used; all letters will be upper 3286case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the 3287"cu" device (e.g. /dev/cudp#). 3288 3289The names /dev/ttyQ# and /dev/cuq# are reserved for local use. 3290 3291The alternate devices provide for kernel-based exclusion and somewhat 3292different defaults than the primary devices. Their main purpose is to 3293allow the use of serial ports with programs with no inherent or broken 3294support for serial ports. Their use is deprecated, and they may be 3295removed from a future version of Linux. 3296 3297Arbitration of serial ports is provided by the use of lock files with 3298the names /var/lock/LCK..ttyX#. The contents of the lock file should 3299be the PID of the locking process as an ASCII number. 3300 3301It is common practice to install links such as /dev/modem 3302which point to serial ports. In order to ensure proper locking in the 3303presence of these links, it is recommended that software chase 3304symlinks and lock all possible names; additionally, it is recommended 3305that a lock file be installed with the corresponding alternate 3306device. In order to avoid deadlocks, it is recommended that the locks 3307are acquired in the following order, and released in the reverse: 3308 3309 1. The symbolic link name, if any (/var/lock/LCK..modem) 3310 2. The "tty" name (/var/lock/LCK..ttyS2) 3311 3. The alternate device name (/var/lock/LCK..cua2) 3312 3313In the case of nested symbolic links, the lock files should be 3314installed in the order the symlinks are resolved. 3315 3316Under no circumstances should an application hold a lock while waiting 3317for another to be released. In addition, applications which attempt 3318to create lock files for the corresponding alternate device names 3319should take into account the possibility of being used on a non-serial 3320port TTY, for which no alternate device would exist. 3321 3322 Pseudoterminals (PTYs) 3323 3324Pseudoterminals, or PTYs, are used to create login sessions or provide 3325other capabilities requiring a TTY line discipline (including SLIP or 3326PPP capability) to arbitrary data-generation processes. Each PTY has 3327a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named 3328/dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by 3329allowing each master side to be opened only once. 3330 3331Once the master side has been opened, the corresponding slave device 3332can be used in the same manner as any TTY device. The master and 3333slave devices are connected by the kernel, generating the equivalent 3334of a bidirectional pipe with TTY capabilities. 3335 3336Recent versions of the Linux kernels and GNU libc contain support for 3337the System V/Unix98 naming scheme for PTYs, which assigns a common 3338device, /dev/ptmx, to all the masters (opening it will automatically 3339give you a previously unassigned PTY) and a subdirectory, /dev/pts, 3340for the slaves; the slaves are named with decimal integers (/dev/pts/# 3341in our notation). This removes the problem of exhausting the 3342namespace and enables the kernel to automatically create the device 3343nodes for the slaves on demand using the "devpts" filesystem. 3344 3345