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This version may be 15newer than the one distributed with the Linux kernel. 16 17The LaTeX version of this document is no longer maintained. 18 19This document is included by reference into the Filesystem Hierarchy 20Standard (FHS).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marked (68k/Atari) apply to Linux/68k on 24the Atari platform only. 25 26The symbol {2.6} means the allocation is obsolete and scheduled for 27removal once kernel version 2.6 (or equivalent) is released.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 102 12 = /dev/oldmem Used by crashdump kernels to access 103 the memory of the kernel that crashed. 104 105 1 block RAM disk 106 0 = /dev/ram0 First RAM disk 107 1 = /dev/ram1 Second RAM disk 108 ... 109 250 = /dev/initrd Initial RAM disk 110 111 Older kernels had /dev/ramdisk (1, 1) here. 112 /dev/initrd refers to a RAM disk which was preloaded 113 by the boot loader; newer kernels use /dev/ram0 for 114 the initrd. 115 116 2 char Pseudo-TTY masters 117 0 = /dev/ptyp0 First PTY master 118 1 = /dev/ptyp1 Second PTY master 119 ... 120 255 = /dev/ptyef 256th PTY master 121 122 Pseudo-tty's are named as follows: 123 * Masters are "pty", slaves are "tty"; 124 * the fourth letter is one of pqrstuvwxyzabcde indicating 125 the 1st through 16th series of 16 pseudo-ttys each, and 126 * the fifth letter is one of 0123456789abcdef indicating 127 the position within the series. 128 129 These are the old-style (BSD) PTY devices; Unix98 130 devices are on major 128 and above and use the PTY 131 master multiplex (/dev/ptmx) to acquire a PTY on 132 demand. 133 134 2 block Floppy disks 135 0 = /dev/fd0 Controller 0, drive 0, autodetect 136 1 = /dev/fd1 Controller 0, drive 1, autodetect 137 2 = /dev/fd2 Controller 0, drive 2, autodetect 138 3 = /dev/fd3 Controller 0, drive 3, autodetect 139 128 = /dev/fd4 Controller 1, drive 0, autodetect 140 129 = /dev/fd5 Controller 1, drive 1, autodetect 141 130 = /dev/fd6 Controller 1, drive 2, autodetect 142 131 = /dev/fd7 Controller 1, drive 3, autodetect 143 144 To specify format, add to the autodetect device number: 145 0 = /dev/fd? Autodetect format 146 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1) 147 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1) 148 48 = /dev/fd?h410 5.25" 410K in a 1200K drive 149 64 = /dev/fd?h420 5.25" 420K in a 1200K drive 150 24 = /dev/fd?h720 5.25" 720K in a 1200K drive 151 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1) 152 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1) 153 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1) 154 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive 155 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive 156 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1) 157 158 12 = /dev/fd?u360 3.5" 360K Double Density(2) 159 16 = /dev/fd?u720 3.5" 720K Double Density(1) 160 120 = /dev/fd?u800 3.5" 800K Double Density(2) 161 52 = /dev/fd?u820 3.5" 820K Double Density 162 68 = /dev/fd?u830 3.5" 830K Double Density 163 84 = /dev/fd?u1040 3.5" 1040K Double Density(1) 164 88 = /dev/fd?u1120 3.5" 1120K Double Density(1) 165 28 = /dev/fd?u1440 3.5" 1440K High Density(1) 166 124 = /dev/fd?u1600 3.5" 1600K High Density(1) 167 44 = /dev/fd?u1680 3.5" 1680K High Density(3) 168 60 = /dev/fd?u1722 3.5" 1722K High Density 169 76 = /dev/fd?u1743 3.5" 1743K High Density 170 96 = /dev/fd?u1760 3.5" 1760K High Density 171 116 = /dev/fd?u1840 3.5" 1840K High Density(3) 172 100 = /dev/fd?u1920 3.5" 1920K High Density(1) 173 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1) 174 104 = /dev/fd?u3200 3.5" 3200K Extra Density 175 108 = /dev/fd?u3520 3.5" 3520K Extra Density 176 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1) 177 178 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete? 179 180 (1) Autodetectable format 181 (2) Autodetectable format in a Double Density (720K) drive only 182 (3) Autodetectable format in a High Density (1440K) drive only 183 184 NOTE: The letter in the device name (d, q, h or u) 185 signifies the type of drive: 5.25" Double Density (d), 186 5.25" Quad Density (q), 5.25" High Density (h) or 3.5" 187 (any model, u). The use of the capital letters D, H 188 and E for the 3.5" models have been deprecated, since 189 the drive type is insignificant for these devices. 190 191 3 char Pseudo-TTY slaves 192 0 = /dev/ttyp0 First PTY slave 193 1 = /dev/ttyp1 Second PTY slave 194 ... 195 255 = /dev/ttyef 256th PTY slave 196 197 These are the old-style (BSD) PTY devices; Unix98 198 devices are on major 136 and above. 199 200 3 block First MFM, RLL and IDE hard disk/CD-ROM interface 201 0 = /dev/hda Master: whole disk (or CD-ROM) 202 64 = /dev/hdb Slave: whole disk (or CD-ROM) 203 204 For partitions, add to the whole disk device number: 205 0 = /dev/hd? Whole disk 206 1 = /dev/hd?1 First partition 207 2 = /dev/hd?2 Second partition 208 ... 209 63 = /dev/hd?63 63rd partition 210 211 For Linux/i386, partitions 1-4 are the primary 212 partitions, and 5 and above are logical partitions. 213 Other versions of Linux use partitioning schemes 214 appropriate to their respective architectures. 215 216 4 char TTY devices 217 0 = /dev/tty0 Current virtual console 218 219 1 = /dev/tty1 First virtual console 220 ... 221 63 = /dev/tty63 63rd virtual console 222 64 = /dev/ttyS0 First UART serial port 223 ... 224 255 = /dev/ttyS191 192nd UART serial port 225 226 UART serial ports refer to 8250/16450/16550 series devices. 227 228 Older versions of the Linux kernel used this major 229 number for BSD PTY devices. As of Linux 2.1.115, this 230 is no longer supported. Use major numbers 2 and 3. 231 232 4 block Aliases for dynamically allocated major devices to be used 233 when its not possible to create the real device nodes 234 because the root filesystem is mounted read-only. 235 236 0 = /dev/root 237 238 5 char Alternate TTY devices 239 0 = /dev/tty Current TTY device 240 1 = /dev/console System console 241 2 = /dev/ptmx PTY master multiplex 242 3 = /dev/ttyprintk User messages via printk TTY device 243 64 = /dev/cua0 Callout device for ttyS0 244 ... 245 255 = /dev/cua191 Callout device for ttyS191 246 247 (5,1) is /dev/console starting with Linux 2.1.71. See 248 the section on terminal devices for more information 249 on /dev/console. 250 251 6 char Parallel printer devices 252 0 = /dev/lp0 Parallel printer on parport0 253 1 = /dev/lp1 Parallel printer on parport1 254 ... 255 256 Current Linux kernels no longer have a fixed mapping 257 between parallel ports and I/O addresses. Instead, 258 they are redirected through the parport multiplex layer. 259 260 7 char Virtual console capture devices 261 0 = /dev/vcs Current vc text contents 262 1 = /dev/vcs1 tty1 text contents 263 ... 264 63 = /dev/vcs63 tty63 text contents 265 128 = /dev/vcsa Current vc text/attribute contents 266 129 = /dev/vcsa1 tty1 text/attribute contents 267 ... 268 191 = /dev/vcsa63 tty63 text/attribute contents 269 270 NOTE: These devices permit both read and write access. 271 272 7 block Loopback devices 273 0 = /dev/loop0 First loop device 274 1 = /dev/loop1 Second loop device 275 ... 276 277 The loop devices are used to mount filesystems not 278 associated with block devices. The binding to the 279 loop devices is handled by mount(8) or losetup(8). 280 281 8 block SCSI disk devices (0-15) 282 0 = /dev/sda First SCSI disk whole disk 283 16 = /dev/sdb Second SCSI disk whole disk 284 32 = /dev/sdc Third SCSI disk whole disk 285 ... 286 240 = /dev/sdp Sixteenth SCSI disk whole disk 287 288 Partitions are handled in the same way as for IDE 289 disks (see major number 3) except that the limit on 290 partitions is 15. 291 292 9 char SCSI tape devices 293 0 = /dev/st0 First SCSI tape, mode 0 294 1 = /dev/st1 Second SCSI tape, mode 0 295 ... 296 32 = /dev/st0l First SCSI tape, mode 1 297 33 = /dev/st1l Second SCSI tape, mode 1 298 ... 299 64 = /dev/st0m First SCSI tape, mode 2 300 65 = /dev/st1m Second SCSI tape, mode 2 301 ... 302 96 = /dev/st0a First SCSI tape, mode 3 303 97 = /dev/st1a Second SCSI tape, mode 3 304 ... 305 128 = /dev/nst0 First SCSI tape, mode 0, no rewind 306 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind 307 ... 308 160 = /dev/nst0l First SCSI tape, mode 1, no rewind 309 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind 310 ... 311 192 = /dev/nst0m First SCSI tape, mode 2, no rewind 312 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind 313 ... 314 224 = /dev/nst0a First SCSI tape, mode 3, no rewind 315 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind 316 ... 317 318 "No rewind" refers to the omission of the default 319 automatic rewind on device close. The MTREW or MTOFFL 320 ioctl()'s can be used to rewind the tape regardless of 321 the device used to access it. 322 323 9 block Metadisk (RAID) devices 324 0 = /dev/md0 First metadisk group 325 1 = /dev/md1 Second metadisk group 326 ... 327 328 The metadisk driver is used to span a 329 filesystem across multiple physical disks. 330 331 10 char Non-serial mice, misc features 332 0 = /dev/logibm Logitech bus mouse 333 1 = /dev/psaux PS/2-style mouse port 334 2 = /dev/inportbm Microsoft Inport bus mouse 335 3 = /dev/atibm ATI XL bus mouse 336 4 = /dev/jbm J-mouse 337 4 = /dev/amigamouse Amiga mouse (68k/Amiga) 338 5 = /dev/atarimouse Atari mouse 339 6 = /dev/sunmouse Sun mouse 340 7 = /dev/amigamouse1 Second Amiga mouse 341 8 = /dev/smouse Simple serial mouse driver 342 9 = /dev/pc110pad IBM PC-110 digitizer pad 343 10 = /dev/adbmouse Apple Desktop Bus mouse 344 11 = /dev/vrtpanel Vr41xx embedded touch panel 345 13 = /dev/vpcmouse Connectix Virtual PC Mouse 346 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen 347 15 = /dev/touchscreen/mk712 MK712 touchscreen 348 128 = /dev/beep Fancy beep device 349 129 = 350 130 = /dev/watchdog Watchdog timer port 351 131 = /dev/temperature Machine internal temperature 352 132 = /dev/hwtrap Hardware fault trap 353 133 = /dev/exttrp External device trap 354 134 = /dev/apm_bios Advanced Power Management BIOS 355 135 = /dev/rtc Real Time Clock 356 139 = /dev/openprom SPARC OpenBoot PROM 357 140 = /dev/relay8 Berkshire Products Octal relay card 358 141 = /dev/relay16 Berkshire Products ISO-16 relay card 359 142 = 360 143 = /dev/pciconf PCI configuration space 361 144 = /dev/nvram Non-volatile configuration RAM 362 145 = /dev/hfmodem Soundcard shortwave modem control 363 146 = /dev/graphics Linux/SGI graphics device 364 147 = /dev/opengl Linux/SGI OpenGL pipe 365 148 = /dev/gfx Linux/SGI graphics effects device 366 149 = /dev/input/mouse Linux/SGI Irix emulation mouse 367 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard 368 151 = /dev/led Front panel LEDs 369 152 = /dev/kpoll Kernel Poll Driver 370 153 = /dev/mergemem Memory merge device 371 154 = /dev/pmu Macintosh PowerBook power manager 372 155 = /dev/isictl MultiTech ISICom serial control 373 156 = /dev/lcd Front panel LCD display 374 157 = /dev/ac Applicom Intl Profibus card 375 158 = /dev/nwbutton Netwinder external button 376 159 = /dev/nwdebug Netwinder debug interface 377 160 = /dev/nwflash Netwinder flash memory 378 161 = /dev/userdma User-space DMA access 379 162 = /dev/smbus System Management Bus 380 163 = /dev/lik Logitech Internet Keyboard 381 164 = /dev/ipmo Intel Intelligent Platform Management 382 165 = /dev/vmmon VMware virtual machine monitor 383 166 = /dev/i2o/ctl I2O configuration manager 384 167 = /dev/specialix_sxctl Specialix serial control 385 168 = /dev/tcldrv Technology Concepts serial control 386 169 = /dev/specialix_rioctl Specialix RIO serial control 387 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices 388 171 = /dev/srripc QNX4 API IPC manager 389 172 = /dev/usemaclone Semaphore clone device 390 173 = /dev/ipmikcs Intelligent Platform Management 391 174 = /dev/uctrl SPARCbook 3 microcontroller 392 175 = /dev/agpgart AGP Graphics Address Remapping Table 393 176 = /dev/gtrsc Gorgy Timing radio clock 394 177 = /dev/cbm Serial CBM bus 395 178 = /dev/jsflash JavaStation OS flash SIMM 396 179 = /dev/xsvc High-speed shared-mem/semaphore service 397 180 = /dev/vrbuttons Vr41xx button input device 398 181 = /dev/toshiba Toshiba laptop SMM support 399 182 = /dev/perfctr Performance-monitoring counters 400 183 = /dev/hwrng Generic random number generator 401 184 = /dev/cpu/microcode CPU microcode update interface 402 186 = /dev/atomicps Atomic shapshot of process state data 403 187 = /dev/irnet IrNET device 404 188 = /dev/smbusbios SMBus BIOS 405 189 = /dev/ussp_ctl User space serial port control 406 190 = /dev/crash Mission Critical Linux crash dump facility 407 191 = /dev/pcl181 <information missing> 408 192 = /dev/nas_xbus NAS xbus LCD/buttons access 409 193 = /dev/d7s SPARC 7-segment display 410 194 = /dev/zkshim Zero-Knowledge network shim control 411 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201 412 198 = /dev/sexec Signed executable interface 413 199 = /dev/scanners/cuecat :CueCat barcode scanner 414 200 = /dev/net/tun TAP/TUN network device 415 201 = /dev/button/gulpb Transmeta GULP-B buttons 416 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control 417 204 = /dev/video/em8300 EM8300 DVD decoder control 418 205 = /dev/video/em8300_mv EM8300 DVD decoder video 419 206 = /dev/video/em8300_ma EM8300 DVD decoder audio 420 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture 421 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller 422 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver 423 210 = /dev/impi/bt IMPI coprocessor block transfer 424 211 = /dev/impi/smic IMPI coprocessor stream interface 425 212 = /dev/watchdogs/0 First watchdog device 426 213 = /dev/watchdogs/1 Second watchdog device 427 214 = /dev/watchdogs/2 Third watchdog device 428 215 = /dev/watchdogs/3 Fourth watchdog device 429 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel 430 217 = /dev/ni/natmotn National Instruments Motion 431 218 = /dev/kchuid Inter-process chuid control 432 219 = /dev/modems/mwave MWave modem firmware upload 433 220 = /dev/mptctl Message passing technology (MPT) control 434 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver 435 222 = /dev/mvista/hasi Montavista PICMG high availability 436 223 = /dev/input/uinput User level driver support for input 437 224 = /dev/tpm TCPA TPM driver 438 225 = /dev/pps Pulse Per Second driver 439 226 = /dev/systrace Systrace device 440 227 = /dev/mcelog X86_64 Machine Check Exception driver 441 228 = /dev/hpet HPET driver 442 229 = /dev/fuse Fuse (virtual filesystem in user-space) 443 230 = /dev/midishare MidiShare driver 444 231 = /dev/snapshot System memory snapshot device 445 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions) 446 233 = /dev/kmview View-OS A process with a view 447 234 = /dev/btrfs-control Btrfs control device 448 235 = /dev/autofs Autofs control device 449 236 = /dev/mapper/control Device-Mapper control device 450 237 = /dev/loop-control Loopback control device 451 238 = /dev/vhost-net Host kernel accelerator for virtio net 452 453 240-254 Reserved for local use 454 255 Reserved for MISC_DYNAMIC_MINOR 455 456 11 char Raw keyboard device (Linux/SPARC only) 457 0 = /dev/kbd Raw keyboard device 458 459 11 char Serial Mux device (Linux/PA-RISC only) 460 0 = /dev/ttyB0 First mux port 461 1 = /dev/ttyB1 Second mux port 462 ... 463 464 11 block SCSI CD-ROM devices 465 0 = /dev/scd0 First SCSI CD-ROM 466 1 = /dev/scd1 Second SCSI CD-ROM 467 ... 468 469 The prefix /dev/sr (instead of /dev/scd) has been deprecated. 470 471 12 char QIC-02 tape 472 2 = /dev/ntpqic11 QIC-11, no rewind-on-close 473 3 = /dev/tpqic11 QIC-11, rewind-on-close 474 4 = /dev/ntpqic24 QIC-24, no rewind-on-close 475 5 = /dev/tpqic24 QIC-24, rewind-on-close 476 6 = /dev/ntpqic120 QIC-120, no rewind-on-close 477 7 = /dev/tpqic120 QIC-120, rewind-on-close 478 8 = /dev/ntpqic150 QIC-150, no rewind-on-close 479 9 = /dev/tpqic150 QIC-150, rewind-on-close 480 481 The device names specified are proposed -- if there 482 are "standard" names for these devices, please let me know. 483 484 12 block 485 486 13 char Input core 487 0 = /dev/input/js0 First joystick 488 1 = /dev/input/js1 Second joystick 489 ... 490 32 = /dev/input/mouse0 First mouse 491 33 = /dev/input/mouse1 Second mouse 492 ... 493 63 = /dev/input/mice Unified mouse 494 64 = /dev/input/event0 First event queue 495 65 = /dev/input/event1 Second event queue 496 ... 497 498 Each device type has 5 bits (32 minors). 499 500 13 block 8-bit MFM/RLL/IDE controller 501 0 = /dev/xda First XT disk whole disk 502 64 = /dev/xdb Second XT disk whole disk 503 504 Partitions are handled in the same way as IDE disks 505 (see major number 3). 506 507 14 char Open Sound System (OSS) 508 0 = /dev/mixer Mixer control 509 1 = /dev/sequencer Audio sequencer 510 2 = /dev/midi00 First MIDI port 511 3 = /dev/dsp Digital audio 512 4 = /dev/audio Sun-compatible digital audio 513 6 = 514 7 = /dev/audioctl SPARC audio control device 515 8 = /dev/sequencer2 Sequencer -- alternate device 516 16 = /dev/mixer1 Second soundcard mixer control 517 17 = /dev/patmgr0 Sequencer patch manager 518 18 = /dev/midi01 Second MIDI port 519 19 = /dev/dsp1 Second soundcard digital audio 520 20 = /dev/audio1 Second soundcard Sun digital audio 521 33 = /dev/patmgr1 Sequencer patch manager 522 34 = /dev/midi02 Third MIDI port 523 50 = /dev/midi03 Fourth MIDI port 524 525 14 block 526 527 15 char Joystick 528 0 = /dev/js0 First analog joystick 529 1 = /dev/js1 Second analog joystick 530 ... 531 128 = /dev/djs0 First digital joystick 532 129 = /dev/djs1 Second digital joystick 533 ... 534 15 block Sony CDU-31A/CDU-33A CD-ROM 535 0 = /dev/sonycd Sony CDU-31a CD-ROM 536 537 16 char Non-SCSI scanners 538 0 = /dev/gs4500 Genius 4500 handheld scanner 539 540 16 block GoldStar CD-ROM 541 0 = /dev/gscd GoldStar CD-ROM 542 543 17 char OBSOLETE (was Chase serial card) 544 0 = /dev/ttyH0 First Chase port 545 1 = /dev/ttyH1 Second Chase port 546 ... 547 17 block Optics Storage CD-ROM 548 0 = /dev/optcd Optics Storage CD-ROM 549 550 18 char OBSOLETE (was Chase serial card - alternate devices) 551 0 = /dev/cuh0 Callout device for ttyH0 552 1 = /dev/cuh1 Callout device for ttyH1 553 ... 554 18 block Sanyo CD-ROM 555 0 = /dev/sjcd Sanyo CD-ROM 556 557 19 char Cyclades serial card 558 0 = /dev/ttyC0 First Cyclades port 559 ... 560 31 = /dev/ttyC31 32nd Cyclades port 561 562 19 block "Double" compressed disk 563 0 = /dev/double0 First compressed disk 564 ... 565 7 = /dev/double7 Eighth compressed disk 566 128 = /dev/cdouble0 Mirror of first compressed disk 567 ... 568 135 = /dev/cdouble7 Mirror of eighth compressed disk 569 570 See the Double documentation for the meaning of the 571 mirror devices. 572 573 20 char Cyclades serial card - alternate devices 574 0 = /dev/cub0 Callout device for ttyC0 575 ... 576 31 = /dev/cub31 Callout device for ttyC31 577 578 20 block Hitachi CD-ROM (under development) 579 0 = /dev/hitcd Hitachi CD-ROM 580 581 21 char Generic SCSI access 582 0 = /dev/sg0 First generic SCSI device 583 1 = /dev/sg1 Second generic SCSI device 584 ... 585 586 Most distributions name these /dev/sga, /dev/sgb...; 587 this sets an unnecessary limit of 26 SCSI devices in 588 the system and is counter to standard Linux 589 device-naming practice. 590 591 21 block Acorn MFM hard drive interface 592 0 = /dev/mfma First MFM drive whole disk 593 64 = /dev/mfmb Second MFM drive whole disk 594 595 This device is used on the ARM-based Acorn RiscPC. 596 Partitions are handled the same way as for IDE disks 597 (see major number 3). 598 599 22 char Digiboard serial card 600 0 = /dev/ttyD0 First Digiboard port 601 1 = /dev/ttyD1 Second Digiboard port 602 ... 603 22 block Second IDE hard disk/CD-ROM interface 604 0 = /dev/hdc Master: whole disk (or CD-ROM) 605 64 = /dev/hdd Slave: whole disk (or CD-ROM) 606 607 Partitions are handled the same way as for the first 608 interface (see major number 3). 609 610 23 char Digiboard serial card - alternate devices 611 0 = /dev/cud0 Callout device for ttyD0 612 1 = /dev/cud1 Callout device for ttyD1 613 ... 614 23 block Mitsumi proprietary CD-ROM 615 0 = /dev/mcd Mitsumi CD-ROM 616 617 24 char Stallion serial card 618 0 = /dev/ttyE0 Stallion port 0 card 0 619 1 = /dev/ttyE1 Stallion port 1 card 0 620 ... 621 64 = /dev/ttyE64 Stallion port 0 card 1 622 65 = /dev/ttyE65 Stallion port 1 card 1 623 ... 624 128 = /dev/ttyE128 Stallion port 0 card 2 625 129 = /dev/ttyE129 Stallion port 1 card 2 626 ... 627 192 = /dev/ttyE192 Stallion port 0 card 3 628 193 = /dev/ttyE193 Stallion port 1 card 3 629 ... 630 24 block Sony CDU-535 CD-ROM 631 0 = /dev/cdu535 Sony CDU-535 CD-ROM 632 633 25 char Stallion serial card - alternate devices 634 0 = /dev/cue0 Callout device for ttyE0 635 1 = /dev/cue1 Callout device for ttyE1 636 ... 637 64 = /dev/cue64 Callout device for ttyE64 638 65 = /dev/cue65 Callout device for ttyE65 639 ... 640 128 = /dev/cue128 Callout device for ttyE128 641 129 = /dev/cue129 Callout device for ttyE129 642 ... 643 192 = /dev/cue192 Callout device for ttyE192 644 193 = /dev/cue193 Callout device for ttyE193 645 ... 646 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM 647 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0 648 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1 649 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2 650 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3 651 652 26 char 653 654 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM 655 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0 656 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1 657 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2 658 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3 659 660 27 char QIC-117 tape 661 0 = /dev/qft0 Unit 0, rewind-on-close 662 1 = /dev/qft1 Unit 1, rewind-on-close 663 2 = /dev/qft2 Unit 2, rewind-on-close 664 3 = /dev/qft3 Unit 3, rewind-on-close 665 4 = /dev/nqft0 Unit 0, no rewind-on-close 666 5 = /dev/nqft1 Unit 1, no rewind-on-close 667 6 = /dev/nqft2 Unit 2, no rewind-on-close 668 7 = /dev/nqft3 Unit 3, no rewind-on-close 669 16 = /dev/zqft0 Unit 0, rewind-on-close, compression 670 17 = /dev/zqft1 Unit 1, rewind-on-close, compression 671 18 = /dev/zqft2 Unit 2, rewind-on-close, compression 672 19 = /dev/zqft3 Unit 3, rewind-on-close, compression 673 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression 674 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression 675 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression 676 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression 677 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks 678 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks 679 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks 680 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks 681 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks 682 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks 683 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks 684 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks 685 686 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM 687 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0 688 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1 689 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2 690 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3 691 692 28 char Stallion serial card - card programming 693 0 = /dev/staliomem0 First Stallion card I/O memory 694 1 = /dev/staliomem1 Second Stallion card I/O memory 695 2 = /dev/staliomem2 Third Stallion card I/O memory 696 3 = /dev/staliomem3 Fourth Stallion card I/O memory 697 698 28 char Atari SLM ACSI laser printer (68k/Atari) 699 0 = /dev/slm0 First SLM laser printer 700 1 = /dev/slm1 Second SLM laser printer 701 ... 702 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM 703 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0 704 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1 705 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2 706 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3 707 708 28 block ACSI disk (68k/Atari) 709 0 = /dev/ada First ACSI disk whole disk 710 16 = /dev/adb Second ACSI disk whole disk 711 32 = /dev/adc Third ACSI disk whole disk 712 ... 713 240 = /dev/adp 16th ACSI disk whole disk 714 715 Partitions are handled in the same way as for IDE 716 disks (see major number 3) except that the limit on 717 partitions is 15, like SCSI. 718 719 29 char Universal frame buffer 720 0 = /dev/fb0 First frame buffer 721 1 = /dev/fb1 Second frame buffer 722 ... 723 31 = /dev/fb31 32nd frame buffer 724 725 29 block Aztech/Orchid/Okano/Wearnes CD-ROM 726 0 = /dev/aztcd Aztech CD-ROM 727 728 30 char iBCS-2 compatibility devices 729 0 = /dev/socksys Socket access 730 1 = /dev/spx SVR3 local X interface 731 32 = /dev/inet/ip Network access 732 33 = /dev/inet/icmp 733 34 = /dev/inet/ggp 734 35 = /dev/inet/ipip 735 36 = /dev/inet/tcp 736 37 = /dev/inet/egp 737 38 = /dev/inet/pup 738 39 = /dev/inet/udp 739 40 = /dev/inet/idp 740 41 = /dev/inet/rawip 741 742 Additionally, iBCS-2 requires the following links: 743 744 /dev/ip -> /dev/inet/ip 745 /dev/icmp -> /dev/inet/icmp 746 /dev/ggp -> /dev/inet/ggp 747 /dev/ipip -> /dev/inet/ipip 748 /dev/tcp -> /dev/inet/tcp 749 /dev/egp -> /dev/inet/egp 750 /dev/pup -> /dev/inet/pup 751 /dev/udp -> /dev/inet/udp 752 /dev/idp -> /dev/inet/idp 753 /dev/rawip -> /dev/inet/rawip 754 /dev/inet/arp -> /dev/inet/udp 755 /dev/inet/rip -> /dev/inet/udp 756 /dev/nfsd -> /dev/socksys 757 /dev/X0R -> /dev/null (? apparently not required ?) 758 759 30 block Philips LMS CM-205 CD-ROM 760 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM 761 762 /dev/lmscd is an older name for this device. This 763 driver does not work with the CM-205MS CD-ROM. 764 765 31 char MPU-401 MIDI 766 0 = /dev/mpu401data MPU-401 data port 767 1 = /dev/mpu401stat MPU-401 status port 768 769 31 block ROM/flash memory card 770 0 = /dev/rom0 First ROM card (rw) 771 ... 772 7 = /dev/rom7 Eighth ROM card (rw) 773 8 = /dev/rrom0 First ROM card (ro) 774 ... 775 15 = /dev/rrom7 Eighth ROM card (ro) 776 16 = /dev/flash0 First flash memory card (rw) 777 ... 778 23 = /dev/flash7 Eighth flash memory card (rw) 779 24 = /dev/rflash0 First flash memory card (ro) 780 ... 781 31 = /dev/rflash7 Eighth flash memory card (ro) 782 783 The read-write (rw) devices support back-caching 784 written data in RAM, as well as writing to flash RAM 785 devices. The read-only devices (ro) support reading 786 only. 787 788 32 char Specialix serial card 789 0 = /dev/ttyX0 First Specialix port 790 1 = /dev/ttyX1 Second Specialix port 791 ... 792 32 block Philips LMS CM-206 CD-ROM 793 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM 794 795 33 char Specialix serial card - alternate devices 796 0 = /dev/cux0 Callout device for ttyX0 797 1 = /dev/cux1 Callout device for ttyX1 798 ... 799 33 block Third IDE hard disk/CD-ROM interface 800 0 = /dev/hde Master: whole disk (or CD-ROM) 801 64 = /dev/hdf Slave: whole disk (or CD-ROM) 802 803 Partitions are handled the same way as for the first 804 interface (see major number 3). 805 806 34 char Z8530 HDLC driver 807 0 = /dev/scc0 First Z8530, first port 808 1 = /dev/scc1 First Z8530, second port 809 2 = /dev/scc2 Second Z8530, first port 810 3 = /dev/scc3 Second Z8530, second port 811 ... 812 813 In a previous version these devices were named 814 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so 815 on. 816 817 34 block Fourth IDE hard disk/CD-ROM interface 818 0 = /dev/hdg Master: whole disk (or CD-ROM) 819 64 = /dev/hdh Slave: whole disk (or CD-ROM) 820 821 Partitions are handled the same way as for the first 822 interface (see major number 3). 823 824 35 char tclmidi MIDI driver 825 0 = /dev/midi0 First MIDI port, kernel timed 826 1 = /dev/midi1 Second MIDI port, kernel timed 827 2 = /dev/midi2 Third MIDI port, kernel timed 828 3 = /dev/midi3 Fourth MIDI port, kernel timed 829 64 = /dev/rmidi0 First MIDI port, untimed 830 65 = /dev/rmidi1 Second MIDI port, untimed 831 66 = /dev/rmidi2 Third MIDI port, untimed 832 67 = /dev/rmidi3 Fourth MIDI port, untimed 833 128 = /dev/smpte0 First MIDI port, SMPTE timed 834 129 = /dev/smpte1 Second MIDI port, SMPTE timed 835 130 = /dev/smpte2 Third MIDI port, SMPTE timed 836 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed 837 838 35 block Slow memory ramdisk 839 0 = /dev/slram Slow memory ramdisk 840 841 36 char Netlink support 842 0 = /dev/route Routing, device updates, kernel to user 843 1 = /dev/skip enSKIP security cache control 844 3 = /dev/fwmonitor Firewall packet copies 845 16 = /dev/tap0 First Ethertap device 846 ... 847 31 = /dev/tap15 16th Ethertap device 848 849 36 block MCA ESDI hard disk 850 0 = /dev/eda First ESDI disk whole disk 851 64 = /dev/edb Second ESDI disk whole disk 852 ... 853 854 Partitions are handled in the same way as IDE disks 855 (see major number 3). 856 857 37 char IDE tape 858 0 = /dev/ht0 First IDE tape 859 1 = /dev/ht1 Second IDE tape 860 ... 861 128 = /dev/nht0 First IDE tape, no rewind-on-close 862 129 = /dev/nht1 Second IDE tape, no rewind-on-close 863 ... 864 865 Currently, only one IDE tape drive is supported. 866 867 37 block Zorro II ramdisk 868 0 = /dev/z2ram Zorro II ramdisk 869 870 38 char Myricom PCI Myrinet board 871 0 = /dev/mlanai0 First Myrinet board 872 1 = /dev/mlanai1 Second Myrinet board 873 ... 874 875 This device is used for status query, board control 876 and "user level packet I/O." This board is also 877 accessible as a standard networking "eth" device. 878 879 38 block OBSOLETE (was Linux/AP+) 880 881 39 char ML-16P experimental I/O board 882 0 = /dev/ml16pa-a0 First card, first analog channel 883 1 = /dev/ml16pa-a1 First card, second analog channel 884 ... 885 15 = /dev/ml16pa-a15 First card, 16th analog channel 886 16 = /dev/ml16pa-d First card, digital lines 887 17 = /dev/ml16pa-c0 First card, first counter/timer 888 18 = /dev/ml16pa-c1 First card, second counter/timer 889 19 = /dev/ml16pa-c2 First card, third counter/timer 890 32 = /dev/ml16pb-a0 Second card, first analog channel 891 33 = /dev/ml16pb-a1 Second card, second analog channel 892 ... 893 47 = /dev/ml16pb-a15 Second card, 16th analog channel 894 48 = /dev/ml16pb-d Second card, digital lines 895 49 = /dev/ml16pb-c0 Second card, first counter/timer 896 50 = /dev/ml16pb-c1 Second card, second counter/timer 897 51 = /dev/ml16pb-c2 Second card, third counter/timer 898 ... 899 39 block 900 901 40 char 902 903 40 block 904 905 41 char Yet Another Micro Monitor 906 0 = /dev/yamm Yet Another Micro Monitor 907 908 41 block 909 910 42 char Demo/sample use 911 912 42 block Demo/sample use 913 914 This number is intended for use in sample code, as 915 well as a general "example" device number. It 916 should never be used for a device driver that is being 917 distributed; either obtain an official number or use 918 the local/experimental range. The sudden addition or 919 removal of a driver with this number should not cause 920 ill effects to the system (bugs excepted.) 921 922 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A 923 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT. 924 925 43 char isdn4linux virtual modem 926 0 = /dev/ttyI0 First virtual modem 927 ... 928 63 = /dev/ttyI63 64th virtual modem 929 930 43 block Network block devices 931 0 = /dev/nb0 First network block device 932 1 = /dev/nb1 Second network block device 933 ... 934 935 Network Block Device is somehow similar to loopback 936 devices: If you read from it, it sends packet across 937 network asking server for data. If you write to it, it 938 sends packet telling server to write. It could be used 939 to mounting filesystems over the net, swapping over 940 the net, implementing block device in userland etc. 941 942 44 char isdn4linux virtual modem - alternate devices 943 0 = /dev/cui0 Callout device for ttyI0 944 ... 945 63 = /dev/cui63 Callout device for ttyI63 946 947 44 block Flash Translation Layer (FTL) filesystems 948 0 = /dev/ftla FTL on first Memory Technology Device 949 16 = /dev/ftlb FTL on second Memory Technology Device 950 32 = /dev/ftlc FTL on third Memory Technology Device 951 ... 952 240 = /dev/ftlp FTL on 16th Memory Technology Device 953 954 Partitions are handled in the same way as for IDE 955 disks (see major number 3) except that the partition 956 limit is 15 rather than 63 per disk (same as SCSI.) 957 958 45 char isdn4linux ISDN BRI driver 959 0 = /dev/isdn0 First virtual B channel raw data 960 ... 961 63 = /dev/isdn63 64th virtual B channel raw data 962 64 = /dev/isdnctrl0 First channel control/debug 963 ... 964 127 = /dev/isdnctrl63 64th channel control/debug 965 966 128 = /dev/ippp0 First SyncPPP device 967 ... 968 191 = /dev/ippp63 64th SyncPPP device 969 970 255 = /dev/isdninfo ISDN monitor interface 971 972 45 block Parallel port IDE disk devices 973 0 = /dev/pda First parallel port IDE disk 974 16 = /dev/pdb Second parallel port IDE disk 975 32 = /dev/pdc Third parallel port IDE disk 976 48 = /dev/pdd Fourth parallel port IDE disk 977 978 Partitions are handled in the same way as for IDE 979 disks (see major number 3) except that the partition 980 limit is 15 rather than 63 per disk. 981 982 46 char Comtrol Rocketport serial card 983 0 = /dev/ttyR0 First Rocketport port 984 1 = /dev/ttyR1 Second Rocketport port 985 ... 986 46 block Parallel port ATAPI CD-ROM devices 987 0 = /dev/pcd0 First parallel port ATAPI CD-ROM 988 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM 989 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM 990 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM 991 992 47 char Comtrol Rocketport serial card - alternate devices 993 0 = /dev/cur0 Callout device for ttyR0 994 1 = /dev/cur1 Callout device for ttyR1 995 ... 996 47 block Parallel port ATAPI disk devices 997 0 = /dev/pf0 First parallel port ATAPI disk 998 1 = /dev/pf1 Second parallel port ATAPI disk 999 2 = /dev/pf2 Third parallel port ATAPI disk 1000 3 = /dev/pf3 Fourth parallel port ATAPI disk 1001 1002 This driver is intended for floppy disks and similar 1003 devices and hence does not support partitioning. 1004 1005 48 char SDL RISCom serial card 1006 0 = /dev/ttyL0 First RISCom port 1007 1 = /dev/ttyL1 Second RISCom port 1008 ... 1009 48 block Mylex DAC960 PCI RAID controller; first controller 1010 0 = /dev/rd/c0d0 First disk, whole disk 1011 8 = /dev/rd/c0d1 Second disk, whole disk 1012 ... 1013 248 = /dev/rd/c0d31 32nd disk, whole disk 1014 1015 For partitions add: 1016 0 = /dev/rd/c?d? Whole disk 1017 1 = /dev/rd/c?d?p1 First partition 1018 ... 1019 7 = /dev/rd/c?d?p7 Seventh partition 1020 1021 49 char SDL RISCom serial card - alternate devices 1022 0 = /dev/cul0 Callout device for ttyL0 1023 1 = /dev/cul1 Callout device for ttyL1 1024 ... 1025 49 block Mylex DAC960 PCI RAID controller; second controller 1026 0 = /dev/rd/c1d0 First disk, whole disk 1027 8 = /dev/rd/c1d1 Second disk, whole disk 1028 ... 1029 248 = /dev/rd/c1d31 32nd disk, whole disk 1030 1031 Partitions are handled as for major 48. 1032 1033 50 char Reserved for GLINT 1034 1035 50 block Mylex DAC960 PCI RAID controller; third controller 1036 0 = /dev/rd/c2d0 First disk, whole disk 1037 8 = /dev/rd/c2d1 Second disk, whole disk 1038 ... 1039 248 = /dev/rd/c2d31 32nd disk, whole disk 1040 1041 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem 1042 0 = /dev/bc0 First Baycom radio modem 1043 1 = /dev/bc1 Second Baycom radio modem 1044 ... 1045 51 block Mylex DAC960 PCI RAID controller; fourth controller 1046 0 = /dev/rd/c3d0 First disk, whole disk 1047 8 = /dev/rd/c3d1 Second disk, whole disk 1048 ... 1049 248 = /dev/rd/c3d31 32nd disk, whole disk 1050 1051 Partitions are handled as for major 48. 1052 1053 52 char Spellcaster DataComm/BRI ISDN card 1054 0 = /dev/dcbri0 First DataComm card 1055 1 = /dev/dcbri1 Second DataComm card 1056 2 = /dev/dcbri2 Third DataComm card 1057 3 = /dev/dcbri3 Fourth DataComm card 1058 1059 52 block Mylex DAC960 PCI RAID controller; fifth controller 1060 0 = /dev/rd/c4d0 First disk, whole disk 1061 8 = /dev/rd/c4d1 Second disk, whole disk 1062 ... 1063 248 = /dev/rd/c4d31 32nd disk, whole disk 1064 1065 Partitions are handled as for major 48. 1066 1067 53 char BDM interface for remote debugging MC683xx microcontrollers 1068 0 = /dev/pd_bdm0 PD BDM interface on lp0 1069 1 = /dev/pd_bdm1 PD BDM interface on lp1 1070 2 = /dev/pd_bdm2 PD BDM interface on lp2 1071 4 = /dev/icd_bdm0 ICD BDM interface on lp0 1072 5 = /dev/icd_bdm1 ICD BDM interface on lp1 1073 6 = /dev/icd_bdm2 ICD BDM interface on lp2 1074 1075 This device is used for the interfacing to the MC683xx 1076 microcontrollers via Background Debug Mode by use of a 1077 Parallel Port interface. PD is the Motorola Public 1078 Domain Interface and ICD is the commercial interface 1079 by P&E. 1080 1081 53 block Mylex DAC960 PCI RAID controller; sixth controller 1082 0 = /dev/rd/c5d0 First disk, whole disk 1083 8 = /dev/rd/c5d1 Second disk, whole disk 1084 ... 1085 248 = /dev/rd/c5d31 32nd disk, whole disk 1086 1087 Partitions are handled as for major 48. 1088 1089 54 char Electrocardiognosis Holter serial card 1090 0 = /dev/holter0 First Holter port 1091 1 = /dev/holter1 Second Holter port 1092 2 = /dev/holter2 Third Holter port 1093 1094 A custom serial card used by Electrocardiognosis SRL 1095 <mseritan@ottonel.pub.ro> to transfer data from Holter 1096 24-hour heart monitoring equipment. 1097 1098 54 block Mylex DAC960 PCI RAID controller; seventh controller 1099 0 = /dev/rd/c6d0 First disk, whole disk 1100 8 = /dev/rd/c6d1 Second disk, whole disk 1101 ... 1102 248 = /dev/rd/c6d31 32nd disk, whole disk 1103 1104 Partitions are handled as for major 48. 1105 1106 55 char DSP56001 digital signal processor 1107 0 = /dev/dsp56k First DSP56001 1108 1109 55 block Mylex DAC960 PCI RAID controller; eighth controller 1110 0 = /dev/rd/c7d0 First disk, whole disk 1111 8 = /dev/rd/c7d1 Second disk, whole disk 1112 ... 1113 248 = /dev/rd/c7d31 32nd disk, whole disk 1114 1115 Partitions are handled as for major 48. 1116 1117 56 char Apple Desktop Bus 1118 0 = /dev/adb ADB bus control 1119 1120 Additional devices will be added to this number, all 1121 starting with /dev/adb. 1122 1123 56 block Fifth IDE hard disk/CD-ROM interface 1124 0 = /dev/hdi Master: whole disk (or CD-ROM) 1125 64 = /dev/hdj Slave: whole disk (or CD-ROM) 1126 1127 Partitions are handled the same way as for the first 1128 interface (see major number 3). 1129 1130 57 char Hayes ESP serial card 1131 0 = /dev/ttyP0 First ESP port 1132 1 = /dev/ttyP1 Second ESP port 1133 ... 1134 1135 57 block Sixth IDE hard disk/CD-ROM interface 1136 0 = /dev/hdk Master: whole disk (or CD-ROM) 1137 64 = /dev/hdl Slave: whole disk (or CD-ROM) 1138 1139 Partitions are handled the same way as for the first 1140 interface (see major number 3). 1141 1142 58 char Hayes ESP serial card - alternate devices 1143 0 = /dev/cup0 Callout device for ttyP0 1144 1 = /dev/cup1 Callout device for ttyP1 1145 ... 1146 1147 58 block Reserved for logical volume manager 1148 1149 59 char sf firewall package 1150 0 = /dev/firewall Communication with sf kernel module 1151 1152 59 block Generic PDA filesystem device 1153 0 = /dev/pda0 First PDA device 1154 1 = /dev/pda1 Second PDA device 1155 ... 1156 1157 The pda devices are used to mount filesystems on 1158 remote pda's (basically slow handheld machines with 1159 proprietary OS's and limited memory and storage 1160 running small fs translation drivers) through serial / 1161 IRDA / parallel links. 1162 1163 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc 1164 1165 60-63 char LOCAL/EXPERIMENTAL USE 1166 1167 60-63 block LOCAL/EXPERIMENTAL USE 1168 Allocated for local/experimental use. For devices not 1169 assigned official numbers, these ranges should be 1170 used in order to avoid conflicting with future assignments. 1171 1172 64 char ENskip kernel encryption package 1173 0 = /dev/enskip Communication with ENskip kernel module 1174 1175 64 block Scramdisk/DriveCrypt encrypted devices 1176 0 = /dev/scramdisk/master Master node for ioctls 1177 1 = /dev/scramdisk/1 First encrypted device 1178 2 = /dev/scramdisk/2 Second encrypted device 1179 ... 1180 255 = /dev/scramdisk/255 255th encrypted device 1181 1182 The filename of the encrypted container and the passwords 1183 are sent via ioctls (using the sdmount tool) to the master 1184 node which then activates them via one of the 1185 /dev/scramdisk/x nodes for loop mounting (all handled 1186 through the sdmount tool). 1187 1188 Requested by: andy@scramdisklinux.org 1189 1190 65 char Sundance "plink" Transputer boards (obsolete, unused) 1191 0 = /dev/plink0 First plink device 1192 1 = /dev/plink1 Second plink device 1193 2 = /dev/plink2 Third plink device 1194 3 = /dev/plink3 Fourth plink device 1195 64 = /dev/rplink0 First plink device, raw 1196 65 = /dev/rplink1 Second plink device, raw 1197 66 = /dev/rplink2 Third plink device, raw 1198 67 = /dev/rplink3 Fourth plink device, raw 1199 128 = /dev/plink0d First plink device, debug 1200 129 = /dev/plink1d Second plink device, debug 1201 130 = /dev/plink2d Third plink device, debug 1202 131 = /dev/plink3d Fourth plink device, debug 1203 192 = /dev/rplink0d First plink device, raw, debug 1204 193 = /dev/rplink1d Second plink device, raw, debug 1205 194 = /dev/rplink2d Third plink device, raw, debug 1206 195 = /dev/rplink3d Fourth plink device, raw, debug 1207 1208 This is a commercial driver; contact James Howes 1209 <jth@prosig.demon.co.uk> for information. 1210 1211 65 block SCSI disk devices (16-31) 1212 0 = /dev/sdq 17th SCSI disk whole disk 1213 16 = /dev/sdr 18th SCSI disk whole disk 1214 32 = /dev/sds 19th SCSI disk whole disk 1215 ... 1216 240 = /dev/sdaf 32nd SCSI disk whole disk 1217 1218 Partitions are handled in the same way as for IDE 1219 disks (see major number 3) except that the limit on 1220 partitions is 15. 1221 1222 66 char YARC PowerPC PCI coprocessor card 1223 0 = /dev/yppcpci0 First YARC card 1224 1 = /dev/yppcpci1 Second YARC card 1225 ... 1226 1227 66 block SCSI disk devices (32-47) 1228 0 = /dev/sdag 33th SCSI disk whole disk 1229 16 = /dev/sdah 34th SCSI disk whole disk 1230 32 = /dev/sdai 35th SCSI disk whole disk 1231 ... 1232 240 = /dev/sdav 48nd SCSI disk whole disk 1233 1234 Partitions are handled in the same way as for IDE 1235 disks (see major number 3) except that the limit on 1236 partitions is 15. 1237 1238 67 char Coda network file system 1239 0 = /dev/cfs0 Coda cache manager 1240 1241 See http://www.coda.cs.cmu.edu for information about Coda. 1242 1243 67 block SCSI disk devices (48-63) 1244 0 = /dev/sdaw 49th SCSI disk whole disk 1245 16 = /dev/sdax 50th SCSI disk whole disk 1246 32 = /dev/sday 51st SCSI disk whole disk 1247 ... 1248 240 = /dev/sdbl 64th SCSI disk whole disk 1249 1250 Partitions are handled in the same way as for IDE 1251 disks (see major number 3) except that the limit on 1252 partitions is 15. 1253 1254 68 char CAPI 2.0 interface 1255 0 = /dev/capi20 Control device 1256 1 = /dev/capi20.00 First CAPI 2.0 application 1257 2 = /dev/capi20.01 Second CAPI 2.0 application 1258 ... 1259 20 = /dev/capi20.19 19th CAPI 2.0 application 1260 1261 ISDN CAPI 2.0 driver for use with CAPI 2.0 1262 applications; currently supports the AVM B1 card. 1263 1264 68 block SCSI disk devices (64-79) 1265 0 = /dev/sdbm 65th SCSI disk whole disk 1266 16 = /dev/sdbn 66th SCSI disk whole disk 1267 32 = /dev/sdbo 67th SCSI disk whole disk 1268 ... 1269 240 = /dev/sdcb 80th SCSI disk whole disk 1270 1271 Partitions are handled in the same way as for IDE 1272 disks (see major number 3) except that the limit on 1273 partitions is 15. 1274 1275 69 char MA16 numeric accelerator card 1276 0 = /dev/ma16 Board memory access 1277 1278 69 block SCSI disk devices (80-95) 1279 0 = /dev/sdcc 81st SCSI disk whole disk 1280 16 = /dev/sdcd 82nd SCSI disk whole disk 1281 32 = /dev/sdce 83th SCSI disk whole disk 1282 ... 1283 240 = /dev/sdcr 96th SCSI disk whole disk 1284 1285 Partitions are handled in the same way as for IDE 1286 disks (see major number 3) except that the limit on 1287 partitions is 15. 1288 1289 70 char SpellCaster Protocol Services Interface 1290 0 = /dev/apscfg Configuration interface 1291 1 = /dev/apsauth Authentication interface 1292 2 = /dev/apslog Logging interface 1293 3 = /dev/apsdbg Debugging interface 1294 64 = /dev/apsisdn ISDN command interface 1295 65 = /dev/apsasync Async command interface 1296 128 = /dev/apsmon Monitor interface 1297 1298 70 block SCSI disk devices (96-111) 1299 0 = /dev/sdcs 97th SCSI disk whole disk 1300 16 = /dev/sdct 98th SCSI disk whole disk 1301 32 = /dev/sdcu 99th SCSI disk whole disk 1302 ... 1303 240 = /dev/sddh 112nd SCSI disk whole disk 1304 1305 Partitions are handled in the same way as for IDE 1306 disks (see major number 3) except that the limit on 1307 partitions is 15. 1308 1309 71 char Computone IntelliPort II serial card 1310 0 = /dev/ttyF0 IntelliPort II board 0, port 0 1311 1 = /dev/ttyF1 IntelliPort II board 0, port 1 1312 ... 1313 63 = /dev/ttyF63 IntelliPort II board 0, port 63 1314 64 = /dev/ttyF64 IntelliPort II board 1, port 0 1315 65 = /dev/ttyF65 IntelliPort II board 1, port 1 1316 ... 1317 127 = /dev/ttyF127 IntelliPort II board 1, port 63 1318 128 = /dev/ttyF128 IntelliPort II board 2, port 0 1319 129 = /dev/ttyF129 IntelliPort II board 2, port 1 1320 ... 1321 191 = /dev/ttyF191 IntelliPort II board 2, port 63 1322 192 = /dev/ttyF192 IntelliPort II board 3, port 0 1323 193 = /dev/ttyF193 IntelliPort II board 3, port 1 1324 ... 1325 255 = /dev/ttyF255 IntelliPort II board 3, port 63 1326 1327 71 block SCSI disk devices (112-127) 1328 0 = /dev/sddi 113th SCSI disk whole disk 1329 16 = /dev/sddj 114th SCSI disk whole disk 1330 32 = /dev/sddk 115th SCSI disk whole disk 1331 ... 1332 240 = /dev/sddx 128th SCSI disk whole disk 1333 1334 Partitions are handled in the same way as for IDE 1335 disks (see major number 3) except that the limit on 1336 partitions is 15. 1337 1338 72 char Computone IntelliPort II serial card - alternate devices 1339 0 = /dev/cuf0 Callout device for ttyF0 1340 1 = /dev/cuf1 Callout device for ttyF1 1341 ... 1342 63 = /dev/cuf63 Callout device for ttyF63 1343 64 = /dev/cuf64 Callout device for ttyF64 1344 65 = /dev/cuf65 Callout device for ttyF65 1345 ... 1346 127 = /dev/cuf127 Callout device for ttyF127 1347 128 = /dev/cuf128 Callout device for ttyF128 1348 129 = /dev/cuf129 Callout device for ttyF129 1349 ... 1350 191 = /dev/cuf191 Callout device for ttyF191 1351 192 = /dev/cuf192 Callout device for ttyF192 1352 193 = /dev/cuf193 Callout device for ttyF193 1353 ... 1354 255 = /dev/cuf255 Callout device for ttyF255 1355 1356 72 block Compaq Intelligent Drive Array, first controller 1357 0 = /dev/ida/c0d0 First logical drive whole disk 1358 16 = /dev/ida/c0d1 Second logical drive whole disk 1359 ... 1360 240 = /dev/ida/c0d15 16th logical drive whole disk 1361 1362 Partitions are handled the same way as for Mylex 1363 DAC960 (see major number 48) except that the limit on 1364 partitions is 15. 1365 1366 73 char Computone IntelliPort II serial card - control devices 1367 0 = /dev/ip2ipl0 Loadware device for board 0 1368 1 = /dev/ip2stat0 Status device for board 0 1369 4 = /dev/ip2ipl1 Loadware device for board 1 1370 5 = /dev/ip2stat1 Status device for board 1 1371 8 = /dev/ip2ipl2 Loadware device for board 2 1372 9 = /dev/ip2stat2 Status device for board 2 1373 12 = /dev/ip2ipl3 Loadware device for board 3 1374 13 = /dev/ip2stat3 Status device for board 3 1375 1376 73 block Compaq Intelligent Drive Array, second controller 1377 0 = /dev/ida/c1d0 First logical drive whole disk 1378 16 = /dev/ida/c1d1 Second logical drive whole disk 1379 ... 1380 240 = /dev/ida/c1d15 16th logical drive whole disk 1381 1382 Partitions are handled the same way as for Mylex 1383 DAC960 (see major number 48) except that the limit on 1384 partitions is 15. 1385 1386 74 char SCI bridge 1387 0 = /dev/SCI/0 SCI device 0 1388 1 = /dev/SCI/1 SCI device 1 1389 ... 1390 1391 Currently for Dolphin Interconnect Solutions' PCI-SCI 1392 bridge. 1393 1394 74 block Compaq Intelligent Drive Array, third controller 1395 0 = /dev/ida/c2d0 First logical drive whole disk 1396 16 = /dev/ida/c2d1 Second logical drive whole disk 1397 ... 1398 240 = /dev/ida/c2d15 16th logical drive whole disk 1399 1400 Partitions are handled the same way as for Mylex 1401 DAC960 (see major number 48) except that the limit on 1402 partitions is 15. 1403 1404 75 char Specialix IO8+ serial card 1405 0 = /dev/ttyW0 First IO8+ port, first card 1406 1 = /dev/ttyW1 Second IO8+ port, first card 1407 ... 1408 8 = /dev/ttyW8 First IO8+ port, second card 1409 ... 1410 1411 75 block Compaq Intelligent Drive Array, fourth controller 1412 0 = /dev/ida/c3d0 First logical drive whole disk 1413 16 = /dev/ida/c3d1 Second logical drive whole disk 1414 ... 1415 240 = /dev/ida/c3d15 16th logical drive whole disk 1416 1417 Partitions are handled the same way as for Mylex 1418 DAC960 (see major number 48) except that the limit on 1419 partitions is 15. 1420 1421 76 char Specialix IO8+ serial card - alternate devices 1422 0 = /dev/cuw0 Callout device for ttyW0 1423 1 = /dev/cuw1 Callout device for ttyW1 1424 ... 1425 8 = /dev/cuw8 Callout device for ttyW8 1426 ... 1427 1428 76 block Compaq Intelligent Drive Array, fifth controller 1429 0 = /dev/ida/c4d0 First logical drive whole disk 1430 16 = /dev/ida/c4d1 Second logical drive whole disk 1431 ... 1432 240 = /dev/ida/c4d15 16th logical drive whole disk 1433 1434 Partitions are handled the same way as for Mylex 1435 DAC960 (see major number 48) except that the limit on 1436 partitions is 15. 1437 1438 1439 77 char ComScire Quantum Noise Generator 1440 0 = /dev/qng ComScire Quantum Noise Generator 1441 1442 77 block Compaq Intelligent Drive Array, sixth controller 1443 0 = /dev/ida/c5d0 First logical drive whole disk 1444 16 = /dev/ida/c5d1 Second logical drive whole disk 1445 ... 1446 240 = /dev/ida/c5d15 16th logical drive whole disk 1447 1448 Partitions are handled the same way as for Mylex 1449 DAC960 (see major number 48) except that the limit on 1450 partitions is 15. 1451 1452 78 char PAM Software's multimodem boards 1453 0 = /dev/ttyM0 First PAM modem 1454 1 = /dev/ttyM1 Second PAM modem 1455 ... 1456 1457 78 block Compaq Intelligent Drive Array, seventh controller 1458 0 = /dev/ida/c6d0 First logical drive whole disk 1459 16 = /dev/ida/c6d1 Second logical drive whole disk 1460 ... 1461 240 = /dev/ida/c6d15 16th logical drive whole disk 1462 1463 Partitions are handled the same way as for Mylex 1464 DAC960 (see major number 48) except that the limit on 1465 partitions is 15. 1466 1467 79 char PAM Software's multimodem boards - alternate devices 1468 0 = /dev/cum0 Callout device for ttyM0 1469 1 = /dev/cum1 Callout device for ttyM1 1470 ... 1471 1472 79 block Compaq Intelligent Drive Array, eighth controller 1473 0 = /dev/ida/c7d0 First logical drive whole disk 1474 16 = /dev/ida/c7d1 Second logical drive whole disk 1475 ... 1476 240 = /dev/ida/c715 16th logical drive whole disk 1477 1478 Partitions are handled the same way as for Mylex 1479 DAC960 (see major number 48) except that the limit on 1480 partitions is 15. 1481 1482 80 char Photometrics AT200 CCD camera 1483 0 = /dev/at200 Photometrics AT200 CCD camera 1484 1485 80 block I2O hard disk 1486 0 = /dev/i2o/hda First I2O hard disk, whole disk 1487 16 = /dev/i2o/hdb Second I2O hard disk, whole disk 1488 ... 1489 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk 1490 1491 Partitions are handled in the same way as for IDE 1492 disks (see major number 3) except that the limit on 1493 partitions is 15. 1494 1495 81 char video4linux 1496 0 = /dev/video0 Video capture/overlay device 1497 ... 1498 63 = /dev/video63 Video capture/overlay device 1499 64 = /dev/radio0 Radio device 1500 ... 1501 127 = /dev/radio63 Radio device 1502 224 = /dev/vbi0 Vertical blank interrupt 1503 ... 1504 255 = /dev/vbi31 Vertical blank interrupt 1505 1506 81 block I2O hard disk 1507 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk 1508 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk 1509 ... 1510 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk 1511 1512 Partitions are handled in the same way as for IDE 1513 disks (see major number 3) except that the limit on 1514 partitions is 15. 1515 1516 82 char WiNRADiO communications receiver card 1517 0 = /dev/winradio0 First WiNRADiO card 1518 1 = /dev/winradio1 Second WiNRADiO card 1519 ... 1520 1521 The driver and documentation may be obtained from 1522 http://www.winradio.com/ 1523 1524 82 block I2O hard disk 1525 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk 1526 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk 1527 ... 1528 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk 1529 1530 Partitions are handled in the same way as for IDE 1531 disks (see major number 3) except that the limit on 1532 partitions is 15. 1533 1534 83 char Matrox mga_vid video driver 1535 0 = /dev/mga_vid0 1st video card 1536 1 = /dev/mga_vid1 2nd video card 1537 2 = /dev/mga_vid2 3rd video card 1538 ... 1539 15 = /dev/mga_vid15 16th video card 1540 1541 83 block I2O hard disk 1542 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk 1543 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk 1544 ... 1545 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk 1546 1547 Partitions are handled in the same way as for IDE 1548 disks (see major number 3) except that the limit on 1549 partitions is 15. 1550 1551 84 char Ikon 1011[57] Versatec Greensheet Interface 1552 0 = /dev/ihcp0 First Greensheet port 1553 1 = /dev/ihcp1 Second Greensheet port 1554 1555 84 block I2O hard disk 1556 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk 1557 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk 1558 ... 1559 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk 1560 1561 Partitions are handled in the same way as for IDE 1562 disks (see major number 3) except that the limit on 1563 partitions is 15. 1564 1565 85 char Linux/SGI shared memory input queue 1566 0 = /dev/shmiq Master shared input queue 1567 1 = /dev/qcntl0 First device pushed 1568 2 = /dev/qcntl1 Second device pushed 1569 ... 1570 1571 85 block I2O hard disk 1572 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk 1573 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk 1574 ... 1575 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk 1576 1577 Partitions are handled in the same way as for IDE 1578 disks (see major number 3) except that the limit on 1579 partitions is 15. 1580 1581 86 char SCSI media changer 1582 0 = /dev/sch0 First SCSI media changer 1583 1 = /dev/sch1 Second SCSI media changer 1584 ... 1585 1586 86 block I2O hard disk 1587 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk 1588 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk 1589 ... 1590 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk 1591 1592 Partitions are handled in the same way as for IDE 1593 disks (see major number 3) except that the limit on 1594 partitions is 15. 1595 1596 87 char Sony Control-A1 stereo control bus 1597 0 = /dev/controla0 First device on chain 1598 1 = /dev/controla1 Second device on chain 1599 ... 1600 1601 87 block I2O hard disk 1602 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk 1603 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk 1604 ... 1605 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk 1606 1607 Partitions are handled in the same way as for IDE 1608 disks (see major number 3) except that the limit on 1609 partitions is 15. 1610 1611 88 char COMX synchronous serial card 1612 0 = /dev/comx0 COMX channel 0 1613 1 = /dev/comx1 COMX channel 1 1614 ... 1615 1616 88 block Seventh IDE hard disk/CD-ROM interface 1617 0 = /dev/hdm Master: whole disk (or CD-ROM) 1618 64 = /dev/hdn Slave: whole disk (or CD-ROM) 1619 1620 Partitions are handled the same way as for the first 1621 interface (see major number 3). 1622 1623 89 char I2C bus interface 1624 0 = /dev/i2c-0 First I2C adapter 1625 1 = /dev/i2c-1 Second I2C adapter 1626 ... 1627 1628 89 block Eighth IDE hard disk/CD-ROM interface 1629 0 = /dev/hdo Master: whole disk (or CD-ROM) 1630 64 = /dev/hdp Slave: whole disk (or CD-ROM) 1631 1632 Partitions are handled the same way as for the first 1633 interface (see major number 3). 1634 1635 90 char Memory Technology Device (RAM, ROM, Flash) 1636 0 = /dev/mtd0 First MTD (rw) 1637 1 = /dev/mtdr0 First MTD (ro) 1638 ... 1639 30 = /dev/mtd15 16th MTD (rw) 1640 31 = /dev/mtdr15 16th MTD (ro) 1641 1642 90 block Ninth IDE hard disk/CD-ROM interface 1643 0 = /dev/hdq Master: whole disk (or CD-ROM) 1644 64 = /dev/hdr Slave: whole disk (or CD-ROM) 1645 1646 Partitions are handled the same way as for the first 1647 interface (see major number 3). 1648 1649 91 char CAN-Bus devices 1650 0 = /dev/can0 First CAN-Bus controller 1651 1 = /dev/can1 Second CAN-Bus controller 1652 ... 1653 1654 91 block Tenth IDE hard disk/CD-ROM interface 1655 0 = /dev/hds Master: whole disk (or CD-ROM) 1656 64 = /dev/hdt Slave: whole disk (or CD-ROM) 1657 1658 Partitions are handled the same way as for the first 1659 interface (see major number 3). 1660 1661 92 char Reserved for ith Kommunikationstechnik MIC ISDN card 1662 1663 92 block PPDD encrypted disk driver 1664 0 = /dev/ppdd0 First encrypted disk 1665 1 = /dev/ppdd1 Second encrypted disk 1666 ... 1667 1668 Partitions are handled in the same way as for IDE 1669 disks (see major number 3) except that the limit on 1670 partitions is 15. 1671 1672 93 char 1673 1674 93 block NAND Flash Translation Layer filesystem 1675 0 = /dev/nftla First NFTL layer 1676 16 = /dev/nftlb Second NFTL layer 1677 ... 1678 240 = /dev/nftlp 16th NTFL layer 1679 1680 94 char 1681 1682 94 block IBM S/390 DASD block storage 1683 0 = /dev/dasda First DASD device, major 1684 1 = /dev/dasda1 First DASD device, block 1 1685 2 = /dev/dasda2 First DASD device, block 2 1686 3 = /dev/dasda3 First DASD device, block 3 1687 4 = /dev/dasdb Second DASD device, major 1688 5 = /dev/dasdb1 Second DASD device, block 1 1689 6 = /dev/dasdb2 Second DASD device, block 2 1690 7 = /dev/dasdb3 Second DASD device, block 3 1691 ... 1692 1693 95 char IP filter 1694 0 = /dev/ipl Filter control device/log file 1695 1 = /dev/ipnat NAT control device/log file 1696 2 = /dev/ipstate State information log file 1697 3 = /dev/ipauth Authentication control device/log file 1698 ... 1699 1700 96 char Parallel port ATAPI tape devices 1701 0 = /dev/pt0 First parallel port ATAPI tape 1702 1 = /dev/pt1 Second parallel port ATAPI tape 1703 ... 1704 128 = /dev/npt0 First p.p. ATAPI tape, no rewind 1705 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind 1706 ... 1707 1708 96 block Inverse NAND Flash Translation Layer 1709 0 = /dev/inftla First INFTL layer 1710 16 = /dev/inftlb Second INFTL layer 1711 ... 1712 240 = /dev/inftlp 16th INTFL layer 1713 1714 97 char Parallel port generic ATAPI interface 1715 0 = /dev/pg0 First parallel port ATAPI device 1716 1 = /dev/pg1 Second parallel port ATAPI device 1717 2 = /dev/pg2 Third parallel port ATAPI device 1718 3 = /dev/pg3 Fourth parallel port ATAPI device 1719 1720 These devices support the same API as the generic SCSI 1721 devices. 1722 1723 98 char Control and Measurement Device (comedi) 1724 0 = /dev/comedi0 First comedi device 1725 1 = /dev/comedi1 Second comedi device 1726 ... 1727 1728 See http://stm.lbl.gov/comedi. 1729 1730 98 block User-mode virtual block device 1731 0 = /dev/ubda First user-mode block device 1732 16 = /dev/udbb Second user-mode block device 1733 ... 1734 1735 Partitions are handled in the same way as for IDE 1736 disks (see major number 3) except that the limit on 1737 partitions is 15. 1738 1739 This device is used by the user-mode virtual kernel port. 1740 1741 99 char Raw parallel ports 1742 0 = /dev/parport0 First parallel port 1743 1 = /dev/parport1 Second parallel port 1744 ... 1745 1746 99 block JavaStation flash disk 1747 0 = /dev/jsfd JavaStation flash disk 1748 1749100 char Telephony for Linux 1750 0 = /dev/phone0 First telephony device 1751 1 = /dev/phone1 Second telephony device 1752 ... 1753 1754101 char Motorola DSP 56xxx board 1755 0 = /dev/mdspstat Status information 1756 1 = /dev/mdsp1 First DSP board I/O controls 1757 ... 1758 16 = /dev/mdsp16 16th DSP board I/O controls 1759 1760101 block AMI HyperDisk RAID controller 1761 0 = /dev/amiraid/ar0 First array whole disk 1762 16 = /dev/amiraid/ar1 Second array whole disk 1763 ... 1764 240 = /dev/amiraid/ar15 16th array whole disk 1765 1766 For each device, partitions are added as: 1767 0 = /dev/amiraid/ar? Whole disk 1768 1 = /dev/amiraid/ar?p1 First partition 1769 2 = /dev/amiraid/ar?p2 Second partition 1770 ... 1771 15 = /dev/amiraid/ar?p15 15th partition 1772 1773102 char 1774 1775102 block Compressed block device 1776 0 = /dev/cbd/a First compressed block device, whole device 1777 16 = /dev/cbd/b Second compressed block device, whole device 1778 ... 1779 240 = /dev/cbd/p 16th compressed block device, whole device 1780 1781 Partitions are handled in the same way as for IDE 1782 disks (see major number 3) except that the limit on 1783 partitions is 15. 1784 1785103 char Arla network file system 1786 0 = /dev/nnpfs0 First NNPFS device 1787 1 = /dev/nnpfs1 Second NNPFS device 1788 1789 Arla is a free clone of the Andrew File System, AFS. 1790 The NNPFS device gives user mode filesystem 1791 implementations a kernel presence for caching and easy 1792 mounting. For more information about the project, 1793 write to <arla-drinkers@stacken.kth.se> or see 1794 http://www.stacken.kth.se/project/arla/ 1795 1796103 block Audit device 1797 0 = /dev/audit Audit device 1798 1799104 char Flash BIOS support 1800 1801104 block Compaq Next Generation Drive Array, first controller 1802 0 = /dev/cciss/c0d0 First logical drive, whole disk 1803 16 = /dev/cciss/c0d1 Second logical drive, whole disk 1804 ... 1805 240 = /dev/cciss/c0d15 16th logical drive, whole disk 1806 1807 Partitions are handled the same way as for Mylex 1808 DAC960 (see major number 48) except that the limit on 1809 partitions is 15. 1810 1811105 char Comtrol VS-1000 serial controller 1812 0 = /dev/ttyV0 First VS-1000 port 1813 1 = /dev/ttyV1 Second VS-1000 port 1814 ... 1815 1816105 block Compaq Next Generation Drive Array, second controller 1817 0 = /dev/cciss/c1d0 First logical drive, whole disk 1818 16 = /dev/cciss/c1d1 Second logical drive, whole disk 1819 ... 1820 240 = /dev/cciss/c1d15 16th logical drive, whole disk 1821 1822 Partitions are handled the same way as for Mylex 1823 DAC960 (see major number 48) except that the limit on 1824 partitions is 15. 1825 1826106 char Comtrol VS-1000 serial controller - alternate devices 1827 0 = /dev/cuv0 First VS-1000 port 1828 1 = /dev/cuv1 Second VS-1000 port 1829 ... 1830 1831106 block Compaq Next Generation Drive Array, third controller 1832 0 = /dev/cciss/c2d0 First logical drive, whole disk 1833 16 = /dev/cciss/c2d1 Second logical drive, whole disk 1834 ... 1835 240 = /dev/cciss/c2d15 16th logical drive, whole disk 1836 1837 Partitions are handled the same way as for Mylex 1838 DAC960 (see major number 48) except that the limit on 1839 partitions is 15. 1840 1841107 char 3Dfx Voodoo Graphics device 1842 0 = /dev/3dfx Primary 3Dfx graphics device 1843 1844107 block Compaq Next Generation Drive Array, fourth controller 1845 0 = /dev/cciss/c3d0 First logical drive, whole disk 1846 16 = /dev/cciss/c3d1 Second logical drive, whole disk 1847 ... 1848 240 = /dev/cciss/c3d15 16th logical drive, whole disk 1849 1850 Partitions are handled the same way as for Mylex 1851 DAC960 (see major number 48) except that the limit on 1852 partitions is 15. 1853 1854108 char Device independent PPP interface 1855 0 = /dev/ppp Device independent PPP interface 1856 1857108 block Compaq Next Generation Drive Array, fifth controller 1858 0 = /dev/cciss/c4d0 First logical drive, whole disk 1859 16 = /dev/cciss/c4d1 Second logical drive, whole disk 1860 ... 1861 240 = /dev/cciss/c4d15 16th logical drive, whole disk 1862 1863 Partitions are handled the same way as for Mylex 1864 DAC960 (see major number 48) except that the limit on 1865 partitions is 15. 1866 1867109 char Reserved for logical volume manager 1868 1869109 block Compaq Next Generation Drive Array, sixth controller 1870 0 = /dev/cciss/c5d0 First logical drive, whole disk 1871 16 = /dev/cciss/c5d1 Second logical drive, whole disk 1872 ... 1873 240 = /dev/cciss/c5d15 16th logical drive, whole disk 1874 1875 Partitions are handled the same way as for Mylex 1876 DAC960 (see major number 48) except that the limit on 1877 partitions is 15. 1878 1879110 char miroMEDIA Surround board 1880 0 = /dev/srnd0 First miroMEDIA Surround board 1881 1 = /dev/srnd1 Second miroMEDIA Surround board 1882 ... 1883 1884110 block Compaq Next Generation Drive Array, seventh controller 1885 0 = /dev/cciss/c6d0 First logical drive, whole disk 1886 16 = /dev/cciss/c6d1 Second logical drive, whole disk 1887 ... 1888 240 = /dev/cciss/c6d15 16th logical drive, whole disk 1889 1890 Partitions are handled the same way as for Mylex 1891 DAC960 (see major number 48) except that the limit on 1892 partitions is 15. 1893 1894111 char 1895 1896111 block Compaq Next Generation Drive Array, eighth controller 1897 0 = /dev/cciss/c7d0 First logical drive, whole disk 1898 16 = /dev/cciss/c7d1 Second logical drive, whole disk 1899 ... 1900 240 = /dev/cciss/c7d15 16th logical drive, whole disk 1901 1902 Partitions are handled the same way as for Mylex 1903 DAC960 (see major number 48) except that the limit on 1904 partitions is 15. 1905 1906112 char ISI serial card 1907 0 = /dev/ttyM0 First ISI port 1908 1 = /dev/ttyM1 Second ISI port 1909 ... 1910 1911 There is currently a device-naming conflict between 1912 these and PAM multimodems (major 78). 1913 1914112 block IBM iSeries virtual disk 1915 0 = /dev/iseries/vda First virtual disk, whole disk 1916 8 = /dev/iseries/vdb Second virtual disk, whole disk 1917 ... 1918 200 = /dev/iseries/vdz 26th virtual disk, whole disk 1919 208 = /dev/iseries/vdaa 27th virtual disk, whole disk 1920 ... 1921 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk 1922 1923 Partitions are handled in the same way as for IDE 1924 disks (see major number 3) except that the limit on 1925 partitions is 7. 1926 1927113 char ISI serial card - alternate devices 1928 0 = /dev/cum0 Callout device for ttyM0 1929 1 = /dev/cum1 Callout device for ttyM1 1930 ... 1931 1932113 block IBM iSeries virtual CD-ROM 1933 0 = /dev/iseries/vcda First virtual CD-ROM 1934 1 = /dev/iseries/vcdb Second virtual CD-ROM 1935 ... 1936 1937114 char Picture Elements ISE board 1938 0 = /dev/ise0 First ISE board 1939 1 = /dev/ise1 Second ISE board 1940 ... 1941 128 = /dev/isex0 Control node for first ISE board 1942 129 = /dev/isex1 Control node for second ISE board 1943 ... 1944 1945 The ISE board is an embedded computer, optimized for 1946 image processing. The /dev/iseN nodes are the general 1947 I/O access to the board, the /dev/isex0 nodes command 1948 nodes used to control the board. 1949 1950114 block IDE BIOS powered software RAID interfaces such as the 1951 Promise Fastrak 1952 1953 0 = /dev/ataraid/d0 1954 1 = /dev/ataraid/d0p1 1955 2 = /dev/ataraid/d0p2 1956 ... 1957 16 = /dev/ataraid/d1 1958 17 = /dev/ataraid/d1p1 1959 18 = /dev/ataraid/d1p2 1960 ... 1961 255 = /dev/ataraid/d15p15 1962 1963 Partitions are handled in the same way as for IDE 1964 disks (see major number 3) except that the limit on 1965 partitions is 15. 1966 1967115 char TI link cable devices (115 was formerly the console driver speaker) 1968 0 = /dev/tipar0 Parallel cable on first parallel port 1969 ... 1970 7 = /dev/tipar7 Parallel cable on seventh parallel port 1971 1972 8 = /dev/tiser0 Serial cable on first serial port 1973 ... 1974 15 = /dev/tiser7 Serial cable on seventh serial port 1975 1976 16 = /dev/tiusb0 First USB cable 1977 ... 1978 47 = /dev/tiusb31 32nd USB cable 1979 1980115 block NetWare (NWFS) Devices (0-255) 1981 1982 The NWFS (NetWare) devices are used to present a 1983 collection of NetWare Mirror Groups or NetWare 1984 Partitions as a logical storage segment for 1985 use in mounting NetWare volumes. A maximum of 1986 256 NetWare volumes can be supported in a single 1987 machine. 1988 1989 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/ 1990 1991 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume 1992 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume 1993 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume 1994 ... 1995 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume 1996 1997116 char Advanced Linux Sound Driver (ALSA) 1998 1999116 block MicroMemory battery backed RAM adapter (NVRAM) 2000 Supports 16 boards, 15 partitions each. 2001 Requested by neilb at cse.unsw.edu.au. 2002 2003 0 = /dev/umem/d0 Whole of first board 2004 1 = /dev/umem/d0p1 First partition of first board 2005 2 = /dev/umem/d0p2 Second partition of first board 2006 15 = /dev/umem/d0p15 15th partition of first board 2007 2008 16 = /dev/umem/d1 Whole of second board 2009 17 = /dev/umem/d1p1 First partition of second board 2010 ... 2011 255= /dev/umem/d15p15 15th partition of 16th board. 2012 2013117 char COSA/SRP synchronous serial card 2014 0 = /dev/cosa0c0 1st board, 1st channel 2015 1 = /dev/cosa0c1 1st board, 2nd channel 2016 ... 2017 16 = /dev/cosa1c0 2nd board, 1st channel 2018 17 = /dev/cosa1c1 2nd board, 2nd channel 2019 ... 2020 2021117 block Enterprise Volume Management System (EVMS) 2022 2023 The EVMS driver uses a layered, plug-in model to provide 2024 unparalleled flexibility and extensibility in managing 2025 storage. This allows for easy expansion or customization 2026 of various levels of volume management. Requested by 2027 Mark Peloquin (peloquin at us.ibm.com). 2028 2029 Note: EVMS populates and manages all the devnodes in 2030 /dev/evms. 2031 2032 http://sf.net/projects/evms 2033 2034 0 = /dev/evms/block_device EVMS block device 2035 1 = /dev/evms/legacyname1 First EVMS legacy device 2036 2 = /dev/evms/legacyname2 Second EVMS legacy device 2037 ... 2038 Both ranges can grow (down or up) until they meet. 2039 ... 2040 254 = /dev/evms/EVMSname2 Second EVMS native device 2041 255 = /dev/evms/EVMSname1 First EVMS native device 2042 2043 Note: legacyname(s) are derived from the normal legacy 2044 device names. For example, /dev/hda5 would become 2045 /dev/evms/hda5. 2046 2047118 char IBM Cryptographic Accelerator 2048 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators 2049 1 = /dev/ica0 IBMCA Device 0 2050 2 = /dev/ica1 IBMCA Device 1 2051 ... 2052 2053119 char VMware virtual network control 2054 0 = /dev/vnet0 1st virtual network 2055 1 = /dev/vnet1 2nd virtual network 2056 ... 2057 2058120-127 char LOCAL/EXPERIMENTAL USE 2059 2060120-127 block LOCAL/EXPERIMENTAL USE 2061 Allocated for local/experimental use. For devices not 2062 assigned official numbers, these ranges should be 2063 used in order to avoid conflicting with future assignments. 2064 2065128-135 char Unix98 PTY masters 2066 2067 These devices should not have corresponding device 2068 nodes; instead they should be accessed through the 2069 /dev/ptmx cloning interface. 2070 2071128 block SCSI disk devices (128-143) 2072 0 = /dev/sddy 129th SCSI disk whole disk 2073 16 = /dev/sddz 130th SCSI disk whole disk 2074 32 = /dev/sdea 131th SCSI disk whole disk 2075 ... 2076 240 = /dev/sden 144th SCSI disk whole disk 2077 2078 Partitions are handled in the same way as for IDE 2079 disks (see major number 3) except that the limit on 2080 partitions is 15. 2081 2082129 block SCSI disk devices (144-159) 2083 0 = /dev/sdeo 145th SCSI disk whole disk 2084 16 = /dev/sdep 146th SCSI disk whole disk 2085 32 = /dev/sdeq 147th SCSI disk whole disk 2086 ... 2087 240 = /dev/sdfd 160th SCSI disk whole disk 2088 2089 Partitions are handled in the same way as for IDE 2090 disks (see major number 3) except that the limit on 2091 partitions is 15. 2092 2093130 char (Misc devices) 2094 2095130 block SCSI disk devices (160-175) 2096 0 = /dev/sdfe 161st SCSI disk whole disk 2097 16 = /dev/sdff 162nd SCSI disk whole disk 2098 32 = /dev/sdfg 163rd SCSI disk whole disk 2099 ... 2100 240 = /dev/sdft 176th SCSI disk whole disk 2101 2102 Partitions are handled in the same way as for IDE 2103 disks (see major number 3) except that the limit on 2104 partitions is 15. 2105 2106131 block SCSI disk devices (176-191) 2107 0 = /dev/sdfu 177th SCSI disk whole disk 2108 16 = /dev/sdfv 178th SCSI disk whole disk 2109 32 = /dev/sdfw 179th SCSI disk whole disk 2110 ... 2111 240 = /dev/sdgj 192nd SCSI disk whole disk 2112 2113 Partitions are handled in the same way as for IDE 2114 disks (see major number 3) except that the limit on 2115 partitions is 15. 2116 2117132 block SCSI disk devices (192-207) 2118 0 = /dev/sdgk 193rd SCSI disk whole disk 2119 16 = /dev/sdgl 194th SCSI disk whole disk 2120 32 = /dev/sdgm 195th SCSI disk whole disk 2121 ... 2122 240 = /dev/sdgz 208th SCSI disk whole disk 2123 2124 Partitions are handled in the same way as for IDE 2125 disks (see major number 3) except that the limit on 2126 partitions is 15. 2127 2128133 block SCSI disk devices (208-223) 2129 0 = /dev/sdha 209th SCSI disk whole disk 2130 16 = /dev/sdhb 210th SCSI disk whole disk 2131 32 = /dev/sdhc 211th SCSI disk whole disk 2132 ... 2133 240 = /dev/sdhp 224th SCSI disk whole disk 2134 2135 Partitions are handled in the same way as for IDE 2136 disks (see major number 3) except that the limit on 2137 partitions is 15. 2138 2139134 block SCSI disk devices (224-239) 2140 0 = /dev/sdhq 225th SCSI disk whole disk 2141 16 = /dev/sdhr 226th SCSI disk whole disk 2142 32 = /dev/sdhs 227th SCSI disk whole disk 2143 ... 2144 240 = /dev/sdif 240th SCSI disk whole disk 2145 2146 Partitions are handled in the same way as for IDE 2147 disks (see major number 3) except that the limit on 2148 partitions is 15. 2149 2150135 block SCSI disk devices (240-255) 2151 0 = /dev/sdig 241st SCSI disk whole disk 2152 16 = /dev/sdih 242nd SCSI disk whole disk 2153 32 = /dev/sdih 243rd SCSI disk whole disk 2154 ... 2155 240 = /dev/sdiv 256th SCSI disk whole disk 2156 2157 Partitions are handled in the same way as for IDE 2158 disks (see major number 3) except that the limit on 2159 partitions is 15. 2160 2161136-143 char Unix98 PTY slaves 2162 0 = /dev/pts/0 First Unix98 pseudo-TTY 2163 1 = /dev/pts/1 Second Unix98 pseudo-TTY 2164 ... 2165 2166 These device nodes are automatically generated with 2167 the proper permissions and modes by mounting the 2168 devpts filesystem onto /dev/pts with the appropriate 2169 mount options (distribution dependent, however, on 2170 *most* distributions the appropriate options are 2171 "mode=0620,gid=<gid of the "tty" group>".) 2172 2173136 block Mylex DAC960 PCI RAID controller; ninth controller 2174 0 = /dev/rd/c8d0 First disk, whole disk 2175 8 = /dev/rd/c8d1 Second disk, whole disk 2176 ... 2177 248 = /dev/rd/c8d31 32nd disk, whole disk 2178 2179 Partitions are handled as for major 48. 2180 2181137 block Mylex DAC960 PCI RAID controller; tenth controller 2182 0 = /dev/rd/c9d0 First disk, whole disk 2183 8 = /dev/rd/c9d1 Second disk, whole disk 2184 ... 2185 248 = /dev/rd/c9d31 32nd disk, whole disk 2186 2187 Partitions are handled as for major 48. 2188 2189138 block Mylex DAC960 PCI RAID controller; eleventh controller 2190 0 = /dev/rd/c10d0 First disk, whole disk 2191 8 = /dev/rd/c10d1 Second disk, whole disk 2192 ... 2193 248 = /dev/rd/c10d31 32nd disk, whole disk 2194 2195 Partitions are handled as for major 48. 2196 2197139 block Mylex DAC960 PCI RAID controller; twelfth controller 2198 0 = /dev/rd/c11d0 First disk, whole disk 2199 8 = /dev/rd/c11d1 Second disk, whole disk 2200 ... 2201 248 = /dev/rd/c11d31 32nd disk, whole disk 2202 2203 Partitions are handled as for major 48. 2204 2205140 block Mylex DAC960 PCI RAID controller; thirteenth controller 2206 0 = /dev/rd/c12d0 First disk, whole disk 2207 8 = /dev/rd/c12d1 Second disk, whole disk 2208 ... 2209 248 = /dev/rd/c12d31 32nd disk, whole disk 2210 2211 Partitions are handled as for major 48. 2212 2213141 block Mylex DAC960 PCI RAID controller; fourteenth controller 2214 0 = /dev/rd/c13d0 First disk, whole disk 2215 8 = /dev/rd/c13d1 Second disk, whole disk 2216 ... 2217 248 = /dev/rd/c13d31 32nd disk, whole disk 2218 2219 Partitions are handled as for major 48. 2220 2221142 block Mylex DAC960 PCI RAID controller; fifteenth controller 2222 0 = /dev/rd/c14d0 First disk, whole disk 2223 8 = /dev/rd/c14d1 Second disk, whole disk 2224 ... 2225 248 = /dev/rd/c14d31 32nd disk, whole disk 2226 2227 Partitions are handled as for major 48. 2228 2229143 block Mylex DAC960 PCI RAID controller; sixteenth controller 2230 0 = /dev/rd/c15d0 First disk, whole disk 2231 8 = /dev/rd/c15d1 Second disk, whole disk 2232 ... 2233 248 = /dev/rd/c15d31 32nd disk, whole disk 2234 2235 Partitions are handled as for major 48. 2236 2237144 char Encapsulated PPP 2238 0 = /dev/pppox0 First PPP over Ethernet 2239 ... 2240 63 = /dev/pppox63 64th PPP over Ethernet 2241 2242 This is primarily used for ADSL. 2243 2244 The SST 5136-DN DeviceNet interface driver has been 2245 relocated to major 183 due to an unfortunate conflict. 2246 2247144 block Expansion Area #1 for more non-device (e.g. NFS) mounts 2248 0 = mounted device 256 2249 255 = mounted device 511 2250 2251145 char SAM9407-based soundcard 2252 0 = /dev/sam0_mixer 2253 1 = /dev/sam0_sequencer 2254 2 = /dev/sam0_midi00 2255 3 = /dev/sam0_dsp 2256 4 = /dev/sam0_audio 2257 6 = /dev/sam0_sndstat 2258 18 = /dev/sam0_midi01 2259 34 = /dev/sam0_midi02 2260 50 = /dev/sam0_midi03 2261 64 = /dev/sam1_mixer 2262 ... 2263 128 = /dev/sam2_mixer 2264 ... 2265 192 = /dev/sam3_mixer 2266 ... 2267 2268 Device functions match OSS, but offer a number of 2269 addons, which are sam9407 specific. OSS can be 2270 operated simultaneously, taking care of the codec. 2271 2272145 block Expansion Area #2 for more non-device (e.g. NFS) mounts 2273 0 = mounted device 512 2274 255 = mounted device 767 2275 2276146 char SYSTRAM SCRAMNet mirrored-memory network 2277 0 = /dev/scramnet0 First SCRAMNet device 2278 1 = /dev/scramnet1 Second SCRAMNet device 2279 ... 2280 2281146 block Expansion Area #3 for more non-device (e.g. NFS) mounts 2282 0 = mounted device 768 2283 255 = mounted device 1023 2284 2285147 char Aureal Semiconductor Vortex Audio device 2286 0 = /dev/aureal0 First Aureal Vortex 2287 1 = /dev/aureal1 Second Aureal Vortex 2288 ... 2289 2290147 block Distributed Replicated Block Device (DRBD) 2291 0 = /dev/drbd0 First DRBD device 2292 1 = /dev/drbd1 Second DRBD device 2293 ... 2294 2295148 char Technology Concepts serial card 2296 0 = /dev/ttyT0 First TCL port 2297 1 = /dev/ttyT1 Second TCL port 2298 ... 2299 2300149 char Technology Concepts serial card - alternate devices 2301 0 = /dev/cut0 Callout device for ttyT0 2302 1 = /dev/cut0 Callout device for ttyT1 2303 ... 2304 2305150 char Real-Time Linux FIFOs 2306 0 = /dev/rtf0 First RTLinux FIFO 2307 1 = /dev/rtf1 Second RTLinux FIFO 2308 ... 2309 2310151 char DPT I2O SmartRaid V controller 2311 0 = /dev/dpti0 First DPT I2O adapter 2312 1 = /dev/dpti1 Second DPT I2O adapter 2313 ... 2314 2315152 char EtherDrive Control Device 2316 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive 2317 1 = /dev/etherd/err Monitor errors 2318 2 = /dev/etherd/raw Raw AoE packet monitor 2319 2320152 block EtherDrive Block Devices 2321 0 = /dev/etherd/0 EtherDrive 0 2322 ... 2323 255 = /dev/etherd/255 EtherDrive 255 2324 2325153 char SPI Bus Interface (sometimes referred to as MicroWire) 2326 0 = /dev/spi0 First SPI device on the bus 2327 1 = /dev/spi1 Second SPI device on the bus 2328 ... 2329 15 = /dev/spi15 Sixteenth SPI device on the bus 2330 2331153 block Enhanced Metadisk RAID (EMD) storage units 2332 0 = /dev/emd/0 First unit 2333 1 = /dev/emd/0p1 Partition 1 on First unit 2334 2 = /dev/emd/0p2 Partition 2 on First unit 2335 ... 2336 15 = /dev/emd/0p15 Partition 15 on First unit 2337 2338 16 = /dev/emd/1 Second unit 2339 32 = /dev/emd/2 Third unit 2340 ... 2341 240 = /dev/emd/15 Sixteenth unit 2342 2343 Partitions are handled in the same way as for IDE 2344 disks (see major number 3) except that the limit on 2345 partitions is 15. 2346 2347154 char Specialix RIO serial card 2348 0 = /dev/ttySR0 First RIO port 2349 ... 2350 255 = /dev/ttySR255 256th RIO port 2351 2352155 char Specialix RIO serial card - alternate devices 2353 0 = /dev/cusr0 Callout device for ttySR0 2354 ... 2355 255 = /dev/cusr255 Callout device for ttySR255 2356 2357156 char Specialix RIO serial card 2358 0 = /dev/ttySR256 257th RIO port 2359 ... 2360 255 = /dev/ttySR511 512th RIO port 2361 2362157 char Specialix RIO serial card - alternate devices 2363 0 = /dev/cusr256 Callout device for ttySR256 2364 ... 2365 255 = /dev/cusr511 Callout device for ttySR511 2366 2367158 char Dialogic GammaLink fax driver 2368 0 = /dev/gfax0 GammaLink channel 0 2369 1 = /dev/gfax1 GammaLink channel 1 2370 ... 2371 2372159 char RESERVED 2373 2374159 block RESERVED 2375 2376160 char General Purpose Instrument Bus (GPIB) 2377 0 = /dev/gpib0 First GPIB bus 2378 1 = /dev/gpib1 Second GPIB bus 2379 ... 2380 2381160 block Carmel 8-port SATA Disks on First Controller 2382 0 = /dev/carmel/0 SATA disk 0 whole disk 2383 1 = /dev/carmel/0p1 SATA disk 0 partition 1 2384 ... 2385 31 = /dev/carmel/0p31 SATA disk 0 partition 31 2386 2387 32 = /dev/carmel/1 SATA disk 1 whole disk 2388 64 = /dev/carmel/2 SATA disk 2 whole disk 2389 ... 2390 224 = /dev/carmel/7 SATA disk 7 whole disk 2391 2392 Partitions are handled in the same way as for IDE 2393 disks (see major number 3) except that the limit on 2394 partitions is 31. 2395 2396161 char IrCOMM devices (IrDA serial/parallel emulation) 2397 0 = /dev/ircomm0 First IrCOMM device 2398 1 = /dev/ircomm1 Second IrCOMM device 2399 ... 2400 16 = /dev/irlpt0 First IrLPT device 2401 17 = /dev/irlpt1 Second IrLPT device 2402 ... 2403 2404161 block Carmel 8-port SATA Disks on Second Controller 2405 0 = /dev/carmel/8 SATA disk 8 whole disk 2406 1 = /dev/carmel/8p1 SATA disk 8 partition 1 2407 ... 2408 31 = /dev/carmel/8p31 SATA disk 8 partition 31 2409 2410 32 = /dev/carmel/9 SATA disk 9 whole disk 2411 64 = /dev/carmel/10 SATA disk 10 whole disk 2412 ... 2413 224 = /dev/carmel/15 SATA disk 15 whole disk 2414 2415 Partitions are handled in the same way as for IDE 2416 disks (see major number 3) except that the limit on 2417 partitions is 31. 2418 2419162 char Raw block device interface 2420 0 = /dev/rawctl Raw I/O control device 2421 1 = /dev/raw/raw1 First raw I/O device 2422 2 = /dev/raw/raw2 Second raw I/O device 2423 ... 2424 2425163 char 2426 2427164 char Chase Research AT/PCI-Fast serial card 2428 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0 2429 ... 2430 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15 2431 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0 2432 ... 2433 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15 2434 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0 2435 ... 2436 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15 2437 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0 2438 ... 2439 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15 2440 2441165 char Chase Research AT/PCI-Fast serial card - alternate devices 2442 0 = /dev/cuch0 Callout device for ttyCH0 2443 ... 2444 63 = /dev/cuch63 Callout device for ttyCH63 2445 2446166 char ACM USB modems 2447 0 = /dev/ttyACM0 First ACM modem 2448 1 = /dev/ttyACM1 Second ACM modem 2449 ... 2450 2451167 char ACM USB modems - alternate devices 2452 0 = /dev/cuacm0 Callout device for ttyACM0 2453 1 = /dev/cuacm1 Callout device for ttyACM1 2454 ... 2455 2456168 char Eracom CSA7000 PCI encryption adaptor 2457 0 = /dev/ecsa0 First CSA7000 2458 1 = /dev/ecsa1 Second CSA7000 2459 ... 2460 2461169 char Eracom CSA8000 PCI encryption adaptor 2462 0 = /dev/ecsa8-0 First CSA8000 2463 1 = /dev/ecsa8-1 Second CSA8000 2464 ... 2465 2466170 char AMI MegaRAC remote access controller 2467 0 = /dev/megarac0 First MegaRAC card 2468 1 = /dev/megarac1 Second MegaRAC card 2469 ... 2470 2471171 char Reserved for IEEE 1394 (Firewire) 2472 2473172 char Moxa Intellio serial card 2474 0 = /dev/ttyMX0 First Moxa port 2475 1 = /dev/ttyMX1 Second Moxa port 2476 ... 2477 127 = /dev/ttyMX127 128th Moxa port 2478 128 = /dev/moxactl Moxa control port 2479 2480173 char Moxa Intellio serial card - alternate devices 2481 0 = /dev/cumx0 Callout device for ttyMX0 2482 1 = /dev/cumx1 Callout device for ttyMX1 2483 ... 2484 127 = /dev/cumx127 Callout device for ttyMX127 2485 2486174 char SmartIO serial card 2487 0 = /dev/ttySI0 First SmartIO port 2488 1 = /dev/ttySI1 Second SmartIO port 2489 ... 2490 2491175 char SmartIO serial card - alternate devices 2492 0 = /dev/cusi0 Callout device for ttySI0 2493 1 = /dev/cusi1 Callout device for ttySI1 2494 ... 2495 2496176 char nCipher nFast PCI crypto accelerator 2497 0 = /dev/nfastpci0 First nFast PCI device 2498 1 = /dev/nfastpci1 First nFast PCI device 2499 ... 2500 2501177 char TI PCILynx memory spaces 2502 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card 2503 ... 2504 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card 2505 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card 2506 ... 2507 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card 2508 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card 2509 ... 2510 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card 2511 2512178 char Giganet cLAN1xxx virtual interface adapter 2513 0 = /dev/clanvi0 First cLAN adapter 2514 1 = /dev/clanvi1 Second cLAN adapter 2515 ... 2516 2517179 block MMC block devices 2518 0 = /dev/mmcblk0 First SD/MMC card 2519 1 = /dev/mmcblk0p1 First partition on first MMC card 2520 8 = /dev/mmcblk1 Second SD/MMC card 2521 ... 2522 2523 The start of next SD/MMC card can be configured with 2524 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe 2525 time using the mmcblk.perdev_minors option. That would 2526 bump the offset between each card to be the configured 2527 value instead of the default 8. 2528 2529179 char CCube DVXChip-based PCI products 2530 0 = /dev/dvxirq0 First DVX device 2531 1 = /dev/dvxirq1 Second DVX device 2532 ... 2533 2534180 char USB devices 2535 0 = /dev/usb/lp0 First USB printer 2536 ... 2537 15 = /dev/usb/lp15 16th USB printer 2538 48 = /dev/usb/scanner0 First USB scanner 2539 ... 2540 63 = /dev/usb/scanner15 16th USB scanner 2541 64 = /dev/usb/rio500 Diamond Rio 500 2542 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de) 2543 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD) 2544 96 = /dev/usb/hiddev0 1st USB HID device 2545 ... 2546 111 = /dev/usb/hiddev15 16th USB HID device 2547 112 = /dev/usb/auer0 1st auerswald ISDN device 2548 ... 2549 127 = /dev/usb/auer15 16th auerswald ISDN device 2550 128 = /dev/usb/brlvgr0 First Braille Voyager device 2551 ... 2552 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device 2553 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device 2554 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device 2555 ... 2556 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device 2557 144 = /dev/usb/lcd USB LCD device 2558 160 = /dev/usb/legousbtower0 1st USB Legotower device 2559 ... 2560 175 = /dev/usb/legousbtower15 16th USB Legotower device 2561 176 = /dev/usb/usbtmc1 First USB TMC device 2562 ... 2563 191 = /dev/usb/usbtmc16 16th USB TMC device 2564 192 = /dev/usb/yurex1 First USB Yurex device 2565 ... 2566 209 = /dev/usb/yurex16 16th USB Yurex device 2567 240 = /dev/usb/dabusb0 First daubusb device 2568 ... 2569 243 = /dev/usb/dabusb3 Fourth dabusb device 2570 2571180 block USB block devices 2572 0 = /dev/uba First USB block device 2573 8 = /dev/ubb Second USB block device 2574 16 = /dev/ubc Third USB block device 2575 ... 2576 2577181 char Conrad Electronic parallel port radio clocks 2578 0 = /dev/pcfclock0 First Conrad radio clock 2579 1 = /dev/pcfclock1 Second Conrad radio clock 2580 ... 2581 2582182 char Picture Elements THR2 binarizer 2583 0 = /dev/pethr0 First THR2 board 2584 1 = /dev/pethr1 Second THR2 board 2585 ... 2586 2587183 char SST 5136-DN DeviceNet interface 2588 0 = /dev/ss5136dn0 First DeviceNet interface 2589 1 = /dev/ss5136dn1 Second DeviceNet interface 2590 ... 2591 2592 This device used to be assigned to major number 144. 2593 It had to be moved due to an unfortunate conflict. 2594 2595184 char Picture Elements' video simulator/sender 2596 0 = /dev/pevss0 First sender board 2597 1 = /dev/pevss1 Second sender board 2598 ... 2599 2600185 char InterMezzo high availability file system 2601 0 = /dev/intermezzo0 First cache manager 2602 1 = /dev/intermezzo1 Second cache manager 2603 ... 2604 2605 See http://web.archive.org/web/20080115195241/ 2606 http://inter-mezzo.org/index.html 2607 2608186 char Object-based storage control device 2609 0 = /dev/obd0 First obd control device 2610 1 = /dev/obd1 Second obd control device 2611 ... 2612 2613 See ftp://ftp.lustre.org/pub/obd for code and information. 2614 2615187 char DESkey hardware encryption device 2616 0 = /dev/deskey0 First DES key 2617 1 = /dev/deskey1 Second DES key 2618 ... 2619 2620188 char USB serial converters 2621 0 = /dev/ttyUSB0 First USB serial converter 2622 1 = /dev/ttyUSB1 Second USB serial converter 2623 ... 2624 2625189 char USB serial converters - alternate devices 2626 0 = /dev/cuusb0 Callout device for ttyUSB0 2627 1 = /dev/cuusb1 Callout device for ttyUSB1 2628 ... 2629 2630190 char Kansas City tracker/tuner card 2631 0 = /dev/kctt0 First KCT/T card 2632 1 = /dev/kctt1 Second KCT/T card 2633 ... 2634 2635191 char Reserved for PCMCIA 2636 2637192 char Kernel profiling interface 2638 0 = /dev/profile Profiling control device 2639 1 = /dev/profile0 Profiling device for CPU 0 2640 2 = /dev/profile1 Profiling device for CPU 1 2641 ... 2642 2643193 char Kernel event-tracing interface 2644 0 = /dev/trace Tracing control device 2645 1 = /dev/trace0 Tracing device for CPU 0 2646 2 = /dev/trace1 Tracing device for CPU 1 2647 ... 2648 2649194 char linVideoStreams (LINVS) 2650 0 = /dev/mvideo/status0 Video compression status 2651 1 = /dev/mvideo/stream0 Video stream 2652 2 = /dev/mvideo/frame0 Single compressed frame 2653 3 = /dev/mvideo/rawframe0 Raw uncompressed frame 2654 4 = /dev/mvideo/codec0 Direct codec access 2655 5 = /dev/mvideo/video4linux0 Video4Linux compatibility 2656 2657 16 = /dev/mvideo/status1 Second device 2658 ... 2659 32 = /dev/mvideo/status2 Third device 2660 ... 2661 ... 2662 240 = /dev/mvideo/status15 16th device 2663 ... 2664 2665195 char Nvidia graphics devices 2666 0 = /dev/nvidia0 First Nvidia card 2667 1 = /dev/nvidia1 Second Nvidia card 2668 ... 2669 255 = /dev/nvidiactl Nvidia card control device 2670 2671196 char Tormenta T1 card 2672 0 = /dev/tor/0 Master control channel for all cards 2673 1 = /dev/tor/1 First DS0 2674 2 = /dev/tor/2 Second DS0 2675 ... 2676 48 = /dev/tor/48 48th DS0 2677 49 = /dev/tor/49 First pseudo-channel 2678 50 = /dev/tor/50 Second pseudo-channel 2679 ... 2680 2681197 char OpenTNF tracing facility 2682 0 = /dev/tnf/t0 Trace 0 data extraction 2683 1 = /dev/tnf/t1 Trace 1 data extraction 2684 ... 2685 128 = /dev/tnf/status Tracing facility status 2686 130 = /dev/tnf/trace Tracing device 2687 2688198 char Total Impact TPMP2 quad coprocessor PCI card 2689 0 = /dev/tpmp2/0 First card 2690 1 = /dev/tpmp2/1 Second card 2691 ... 2692 2693199 char Veritas volume manager (VxVM) volumes 2694 0 = /dev/vx/rdsk/*/* First volume 2695 1 = /dev/vx/rdsk/*/* Second volume 2696 ... 2697 2698199 block Veritas volume manager (VxVM) volumes 2699 0 = /dev/vx/dsk/*/* First volume 2700 1 = /dev/vx/dsk/*/* Second volume 2701 ... 2702 2703 The namespace in these directories is maintained by 2704 the user space VxVM software. 2705 2706200 char Veritas VxVM configuration interface 2707 0 = /dev/vx/config Configuration access node 2708 1 = /dev/vx/trace Volume i/o trace access node 2709 2 = /dev/vx/iod Volume i/o daemon access node 2710 3 = /dev/vx/info Volume information access node 2711 4 = /dev/vx/task Volume tasks access node 2712 5 = /dev/vx/taskmon Volume tasks monitor daemon 2713 2714201 char Veritas VxVM dynamic multipathing driver 2715 0 = /dev/vx/rdmp/* First multipath device 2716 1 = /dev/vx/rdmp/* Second multipath device 2717 ... 2718201 block Veritas VxVM dynamic multipathing driver 2719 0 = /dev/vx/dmp/* First multipath device 2720 1 = /dev/vx/dmp/* Second multipath device 2721 ... 2722 2723 The namespace in these directories is maintained by 2724 the user space VxVM software. 2725 2726202 char CPU model-specific registers 2727 0 = /dev/cpu/0/msr MSRs on CPU 0 2728 1 = /dev/cpu/1/msr MSRs on CPU 1 2729 ... 2730 2731202 block Xen Virtual Block Device 2732 0 = /dev/xvda First Xen VBD whole disk 2733 16 = /dev/xvdb Second Xen VBD whole disk 2734 32 = /dev/xvdc Third Xen VBD whole disk 2735 ... 2736 240 = /dev/xvdp Sixteenth Xen VBD whole disk 2737 2738 Partitions are handled in the same way as for IDE 2739 disks (see major number 3) except that the limit on 2740 partitions is 15. 2741 2742203 char CPU CPUID information 2743 0 = /dev/cpu/0/cpuid CPUID on CPU 0 2744 1 = /dev/cpu/1/cpuid CPUID on CPU 1 2745 ... 2746 2747204 char Low-density serial ports 2748 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0 2749 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1 2750 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2 2751 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3 2752 4 = /dev/ttyFB0 Intel Footbridge (ARM) 2753 5 = /dev/ttySA0 StrongARM builtin serial port 0 2754 6 = /dev/ttySA1 StrongARM builtin serial port 1 2755 7 = /dev/ttySA2 StrongARM builtin serial port 2 2756 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0 2757 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1 2758 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2 2759 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3 2760 12 = /dev/ttyFW0 Firmware console - port 0 2761 13 = /dev/ttyFW1 Firmware console - port 1 2762 14 = /dev/ttyFW2 Firmware console - port 2 2763 15 = /dev/ttyFW3 Firmware console - port 3 2764 16 = /dev/ttyAM0 ARM "AMBA" serial port 0 2765 ... 2766 31 = /dev/ttyAM15 ARM "AMBA" serial port 15 2767 32 = /dev/ttyDB0 DataBooster serial port 0 2768 ... 2769 39 = /dev/ttyDB7 DataBooster serial port 7 2770 40 = /dev/ttySG0 SGI Altix console port 2771 41 = /dev/ttySMX0 Motorola i.MX - port 0 2772 42 = /dev/ttySMX1 Motorola i.MX - port 1 2773 43 = /dev/ttySMX2 Motorola i.MX - port 2 2774 44 = /dev/ttyMM0 Marvell MPSC - port 0 2775 45 = /dev/ttyMM1 Marvell MPSC - port 1 2776 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0 2777 ... 2778 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5 2779 50 = /dev/ttyIOC0 Altix serial card 2780 ... 2781 81 = /dev/ttyIOC31 Altix serial card 2782 82 = /dev/ttyVR0 NEC VR4100 series SIU 2783 83 = /dev/ttyVR1 NEC VR4100 series DSIU 2784 84 = /dev/ttyIOC84 Altix ioc4 serial card 2785 ... 2786 115 = /dev/ttyIOC115 Altix ioc4 serial card 2787 116 = /dev/ttySIOC0 Altix ioc3 serial card 2788 ... 2789 147 = /dev/ttySIOC31 Altix ioc3 serial card 2790 148 = /dev/ttyPSC0 PPC PSC - port 0 2791 ... 2792 153 = /dev/ttyPSC5 PPC PSC - port 5 2793 154 = /dev/ttyAT0 ATMEL serial port 0 2794 ... 2795 169 = /dev/ttyAT15 ATMEL serial port 15 2796 170 = /dev/ttyNX0 Hilscher netX serial port 0 2797 ... 2798 185 = /dev/ttyNX15 Hilscher netX serial port 15 2799 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation 2800 187 = /dev/ttyUL0 Xilinx uartlite - port 0 2801 ... 2802 190 = /dev/ttyUL3 Xilinx uartlite - port 3 2803 191 = /dev/xvc0 Xen virtual console - port 0 2804 192 = /dev/ttyPZ0 pmac_zilog - port 0 2805 ... 2806 195 = /dev/ttyPZ3 pmac_zilog - port 3 2807 196 = /dev/ttyTX0 TX39/49 serial port 0 2808 ... 2809 204 = /dev/ttyTX7 TX39/49 serial port 7 2810 205 = /dev/ttySC0 SC26xx serial port 0 2811 206 = /dev/ttySC1 SC26xx serial port 1 2812 207 = /dev/ttySC2 SC26xx serial port 2 2813 208 = /dev/ttySC3 SC26xx serial port 3 2814 209 = /dev/ttyMAX0 MAX3100 serial port 0 2815 210 = /dev/ttyMAX1 MAX3100 serial port 1 2816 211 = /dev/ttyMAX2 MAX3100 serial port 2 2817 212 = /dev/ttyMAX3 MAX3100 serial port 3 2818 2819205 char Low-density serial ports (alternate device) 2820 0 = /dev/culu0 Callout device for ttyLU0 2821 1 = /dev/culu1 Callout device for ttyLU1 2822 2 = /dev/culu2 Callout device for ttyLU2 2823 3 = /dev/culu3 Callout device for ttyLU3 2824 4 = /dev/cufb0 Callout device for ttyFB0 2825 5 = /dev/cusa0 Callout device for ttySA0 2826 6 = /dev/cusa1 Callout device for ttySA1 2827 7 = /dev/cusa2 Callout device for ttySA2 2828 8 = /dev/cusc0 Callout device for ttySC0 2829 9 = /dev/cusc1 Callout device for ttySC1 2830 10 = /dev/cusc2 Callout device for ttySC2 2831 11 = /dev/cusc3 Callout device for ttySC3 2832 12 = /dev/cufw0 Callout device for ttyFW0 2833 13 = /dev/cufw1 Callout device for ttyFW1 2834 14 = /dev/cufw2 Callout device for ttyFW2 2835 15 = /dev/cufw3 Callout device for ttyFW3 2836 16 = /dev/cuam0 Callout device for ttyAM0 2837 ... 2838 31 = /dev/cuam15 Callout device for ttyAM15 2839 32 = /dev/cudb0 Callout device for ttyDB0 2840 ... 2841 39 = /dev/cudb7 Callout device for ttyDB7 2842 40 = /dev/cusg0 Callout device for ttySG0 2843 41 = /dev/ttycusmx0 Callout device for ttySMX0 2844 42 = /dev/ttycusmx1 Callout device for ttySMX1 2845 43 = /dev/ttycusmx2 Callout device for ttySMX2 2846 46 = /dev/cucpm0 Callout device for ttyCPM0 2847 ... 2848 49 = /dev/cucpm5 Callout device for ttyCPM5 2849 50 = /dev/cuioc40 Callout device for ttyIOC40 2850 ... 2851 81 = /dev/cuioc431 Callout device for ttyIOC431 2852 82 = /dev/cuvr0 Callout device for ttyVR0 2853 83 = /dev/cuvr1 Callout device for ttyVR1 2854 2855206 char OnStream SC-x0 tape devices 2856 0 = /dev/osst0 First OnStream SCSI tape, mode 0 2857 1 = /dev/osst1 Second OnStream SCSI tape, mode 0 2858 ... 2859 32 = /dev/osst0l First OnStream SCSI tape, mode 1 2860 33 = /dev/osst1l Second OnStream SCSI tape, mode 1 2861 ... 2862 64 = /dev/osst0m First OnStream SCSI tape, mode 2 2863 65 = /dev/osst1m Second OnStream SCSI tape, mode 2 2864 ... 2865 96 = /dev/osst0a First OnStream SCSI tape, mode 3 2866 97 = /dev/osst1a Second OnStream SCSI tape, mode 3 2867 ... 2868 128 = /dev/nosst0 No rewind version of /dev/osst0 2869 129 = /dev/nosst1 No rewind version of /dev/osst1 2870 ... 2871 160 = /dev/nosst0l No rewind version of /dev/osst0l 2872 161 = /dev/nosst1l No rewind version of /dev/osst1l 2873 ... 2874 192 = /dev/nosst0m No rewind version of /dev/osst0m 2875 193 = /dev/nosst1m No rewind version of /dev/osst1m 2876 ... 2877 224 = /dev/nosst0a No rewind version of /dev/osst0a 2878 225 = /dev/nosst1a No rewind version of /dev/osst1a 2879 ... 2880 2881 The OnStream SC-x0 SCSI tapes do not support the 2882 standard SCSI SASD command set and therefore need 2883 their own driver "osst". Note that the IDE, USB (and 2884 maybe ParPort) versions may be driven via ide-scsi or 2885 usb-storage SCSI emulation and this osst device and 2886 driver as well. The ADR-x0 drives are QIC-157 2887 compliant and don't need osst. 2888 2889207 char Compaq ProLiant health feature indicate 2890 0 = /dev/cpqhealth/cpqw Redirector interface 2891 1 = /dev/cpqhealth/crom EISA CROM 2892 2 = /dev/cpqhealth/cdt Data Table 2893 3 = /dev/cpqhealth/cevt Event Log 2894 4 = /dev/cpqhealth/casr Automatic Server Recovery 2895 5 = /dev/cpqhealth/cecc ECC Memory 2896 6 = /dev/cpqhealth/cmca Machine Check Architecture 2897 7 = /dev/cpqhealth/ccsm Deprecated CDT 2898 8 = /dev/cpqhealth/cnmi NMI Handling 2899 9 = /dev/cpqhealth/css Sideshow Management 2900 10 = /dev/cpqhealth/cram CMOS interface 2901 11 = /dev/cpqhealth/cpci PCI IRQ interface 2902 2903208 char User space serial ports 2904 0 = /dev/ttyU0 First user space serial port 2905 1 = /dev/ttyU1 Second user space serial port 2906 ... 2907 2908209 char User space serial ports (alternate devices) 2909 0 = /dev/cuu0 Callout device for ttyU0 2910 1 = /dev/cuu1 Callout device for ttyU1 2911 ... 2912 2913210 char SBE, Inc. sync/async serial card 2914 0 = /dev/sbei/wxcfg0 Configuration device for board 0 2915 1 = /dev/sbei/dld0 Download device for board 0 2916 2 = /dev/sbei/wan00 WAN device, port 0, board 0 2917 3 = /dev/sbei/wan01 WAN device, port 1, board 0 2918 4 = /dev/sbei/wan02 WAN device, port 2, board 0 2919 5 = /dev/sbei/wan03 WAN device, port 3, board 0 2920 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0 2921 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0 2922 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0 2923 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0 2924 10 = /dev/sbei/wxcfg1 Configuration device for board 1 2925 11 = /dev/sbei/dld1 Download device for board 1 2926 12 = /dev/sbei/wan10 WAN device, port 0, board 1 2927 13 = /dev/sbei/wan11 WAN device, port 1, board 1 2928 14 = /dev/sbei/wan12 WAN device, port 2, board 1 2929 15 = /dev/sbei/wan13 WAN device, port 3, board 1 2930 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1 2931 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1 2932 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1 2933 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1 2934 ... 2935 2936 Yes, each board is really spaced 10 (decimal) apart. 2937 2938211 char Addinum CPCI1500 digital I/O card 2939 0 = /dev/addinum/cpci1500/0 First CPCI1500 card 2940 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card 2941 ... 2942 2943212 char LinuxTV.org DVB driver subsystem 2944 0 = /dev/dvb/adapter0/video0 first video decoder of first card 2945 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card 2946 2 = /dev/dvb/adapter0/sec0 (obsolete/unused) 2947 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card 2948 4 = /dev/dvb/adapter0/demux0 first demux device of first card 2949 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card 2950 6 = /dev/dvb/adapter0/ca0 first common access port of first card 2951 7 = /dev/dvb/adapter0/net0 first network device of first card 2952 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card 2953 9 = /dev/dvb/adapter0/video1 second video decoder of first card 2954 ... 2955 64 = /dev/dvb/adapter1/video0 first video decoder of second card 2956 ... 2957 128 = /dev/dvb/adapter2/video0 first video decoder of third card 2958 ... 2959 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card 2960 2961216 char Bluetooth RFCOMM TTY devices 2962 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device 2963 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device 2964 ... 2965 2966217 char Bluetooth RFCOMM TTY devices (alternate devices) 2967 0 = /dev/curf0 Callout device for rfcomm0 2968 1 = /dev/curf1 Callout device for rfcomm1 2969 ... 2970 2971218 char The Logical Company bus Unibus/Qbus adapters 2972 0 = /dev/logicalco/bci/0 First bus adapter 2973 1 = /dev/logicalco/bci/1 First bus adapter 2974 ... 2975 2976219 char The Logical Company DCI-1300 digital I/O card 2977 0 = /dev/logicalco/dci1300/0 First DCI-1300 card 2978 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card 2979 ... 2980 2981220 char Myricom Myrinet "GM" board 2982 0 = /dev/myricom/gm0 First Myrinet GM board 2983 1 = /dev/myricom/gmp0 First board "root access" 2984 2 = /dev/myricom/gm1 Second Myrinet GM board 2985 3 = /dev/myricom/gmp1 Second board "root access" 2986 ... 2987 2988221 char VME bus 2989 0 = /dev/bus/vme/m0 First master image 2990 1 = /dev/bus/vme/m1 Second master image 2991 2 = /dev/bus/vme/m2 Third master image 2992 3 = /dev/bus/vme/m3 Fourth master image 2993 4 = /dev/bus/vme/s0 First slave image 2994 5 = /dev/bus/vme/s1 Second slave image 2995 6 = /dev/bus/vme/s2 Third slave image 2996 7 = /dev/bus/vme/s3 Fourth slave image 2997 8 = /dev/bus/vme/ctl Control 2998 2999 It is expected that all VME bus drivers will use the 3000 same interface. For interface documentation see 3001 http://www.vmelinux.org/. 3002 3003224 char A2232 serial card 3004 0 = /dev/ttyY0 First A2232 port 3005 1 = /dev/ttyY1 Second A2232 port 3006 ... 3007 3008225 char A2232 serial card (alternate devices) 3009 0 = /dev/cuy0 Callout device for ttyY0 3010 1 = /dev/cuy1 Callout device for ttyY1 3011 ... 3012 3013226 char Direct Rendering Infrastructure (DRI) 3014 0 = /dev/dri/card0 First graphics card 3015 1 = /dev/dri/card1 Second graphics card 3016 ... 3017 3018227 char IBM 3270 terminal Unix tty access 3019 1 = /dev/3270/tty1 First 3270 terminal 3020 2 = /dev/3270/tty2 Seconds 3270 terminal 3021 ... 3022 3023228 char IBM 3270 terminal block-mode access 3024 0 = /dev/3270/tub Controlling interface 3025 1 = /dev/3270/tub1 First 3270 terminal 3026 2 = /dev/3270/tub2 Second 3270 terminal 3027 ... 3028 3029229 char IBM iSeries/pSeries virtual console 3030 0 = /dev/hvc0 First console port 3031 1 = /dev/hvc1 Second console port 3032 ... 3033 3034230 char IBM iSeries virtual tape 3035 0 = /dev/iseries/vt0 First virtual tape, mode 0 3036 1 = /dev/iseries/vt1 Second virtual tape, mode 0 3037 ... 3038 32 = /dev/iseries/vt0l First virtual tape, mode 1 3039 33 = /dev/iseries/vt1l Second virtual tape, mode 1 3040 ... 3041 64 = /dev/iseries/vt0m First virtual tape, mode 2 3042 65 = /dev/iseries/vt1m Second virtual tape, mode 2 3043 ... 3044 96 = /dev/iseries/vt0a First virtual tape, mode 3 3045 97 = /dev/iseries/vt1a Second virtual tape, mode 3 3046 ... 3047 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind 3048 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind 3049 ... 3050 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind 3051 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind 3052 ... 3053 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind 3054 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind 3055 ... 3056 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind 3057 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind 3058 ... 3059 3060 "No rewind" refers to the omission of the default 3061 automatic rewind on device close. The MTREW or MTOFFL 3062 ioctl()'s can be used to rewind the tape regardless of 3063 the device used to access it. 3064 3065231 char InfiniBand 3066 0 = /dev/infiniband/umad0 3067 1 = /dev/infiniband/umad1 3068 ... 3069 63 = /dev/infiniband/umad63 63rd InfiniBandMad device 3070 64 = /dev/infiniband/issm0 First InfiniBand IsSM device 3071 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device 3072 ... 3073 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device 3074 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device 3075 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device 3076 ... 3077 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device 3078 3079232 char Biometric Devices 3080 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device 3081 1 = /dev/biometric/sensor0/iris first iris sensor on first device 3082 2 = /dev/biometric/sensor0/retina first retina sensor on first device 3083 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device 3084 4 = /dev/biometric/sensor0/facial first facial sensor on first device 3085 5 = /dev/biometric/sensor0/hand first hand sensor on first device 3086 ... 3087 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device 3088 ... 3089 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device 3090 ... 3091 3092233 char PathScale InfiniPath interconnect 3093 0 = /dev/ipath Primary device for programs (any unit) 3094 1 = /dev/ipath0 Access specifically to unit 0 3095 2 = /dev/ipath1 Access specifically to unit 1 3096 ... 3097 4 = /dev/ipath3 Access specifically to unit 3 3098 129 = /dev/ipath_sma Device used by Subnet Management Agent 3099 130 = /dev/ipath_diag Device used by diagnostics programs 3100 3101234-239 UNASSIGNED 3102 3103240-254 char LOCAL/EXPERIMENTAL USE 3104 3105240-254 block LOCAL/EXPERIMENTAL USE 3106 Allocated for local/experimental use. For devices not 3107 assigned official numbers, these ranges should be 3108 used in order to avoid conflicting with future assignments. 3109 3110255 char RESERVED 3111 3112255 block RESERVED 3113 3114 This major is reserved to assist the expansion to a 3115 larger number space. No device nodes with this major 3116 should ever be created on the filesystem. 3117 (This is probably not true anymore, but I'll leave it 3118 for now /Torben) 3119 3120---LARGE MAJORS!!!!!--- 3121 3122256 char Equinox SST multi-port serial boards 3123 0 = /dev/ttyEQ0 First serial port on first Equinox SST board 3124 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board 3125 128 = /dev/ttyEQ128 First serial port on second Equinox SST board 3126 ... 3127 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board 3128 3129256 block Resident Flash Disk Flash Translation Layer 3130 0 = /dev/rfda First RFD FTL layer 3131 16 = /dev/rfdb Second RFD FTL layer 3132 ... 3133 240 = /dev/rfdp 16th RFD FTL layer 3134 3135257 char Phoenix Technologies Cryptographic Services Driver 3136 0 = /dev/ptlsec Crypto Services Driver 3137 3138257 block SSFDC Flash Translation Layer filesystem 3139 0 = /dev/ssfdca First SSFDC layer 3140 8 = /dev/ssfdcb Second SSFDC layer 3141 16 = /dev/ssfdcc Third SSFDC layer 3142 24 = /dev/ssfdcd 4th SSFDC layer 3143 32 = /dev/ssfdce 5th SSFDC layer 3144 40 = /dev/ssfdcf 6th SSFDC layer 3145 48 = /dev/ssfdcg 7th SSFDC layer 3146 56 = /dev/ssfdch 8th SSFDC layer 3147 3148258 block ROM/Flash read-only translation layer 3149 0 = /dev/blockrom0 First ROM card's translation layer interface 3150 1 = /dev/blockrom1 Second ROM card's translation layer interface 3151 ... 3152 3153259 block Block Extended Major 3154 Used dynamically to hold additional partition minor 3155 numbers and allow large numbers of partitions per device 3156 3157259 char FPGA configuration interfaces 3158 0 = /dev/icap0 First Xilinx internal configuration 3159 1 = /dev/icap1 Second Xilinx internal configuration 3160 3161260 char OSD (Object-based-device) SCSI Device 3162 0 = /dev/osd0 First OSD Device 3163 1 = /dev/osd1 Second OSD Device 3164 ... 3165 255 = /dev/osd255 256th OSD Device 3166 3167 **** ADDITIONAL /dev DIRECTORY ENTRIES 3168 3169This section details additional entries that should or may exist in 3170the /dev directory. It is preferred that symbolic links use the same 3171form (absolute or relative) as is indicated here. Links are 3172classified as "hard" or "symbolic" depending on the preferred type of 3173link; if possible, the indicated type of link should be used. 3174 3175 3176 Compulsory links 3177 3178These links should exist on all systems: 3179 3180/dev/fd /proc/self/fd symbolic File descriptors 3181/dev/stdin fd/0 symbolic stdin file descriptor 3182/dev/stdout fd/1 symbolic stdout file descriptor 3183/dev/stderr fd/2 symbolic stderr file descriptor 3184/dev/nfsd socksys symbolic Required by iBCS-2 3185/dev/X0R null symbolic Required by iBCS-2 3186 3187Note: /dev/X0R is <letter X>-<digit 0>-<letter R>. 3188 3189 Recommended links 3190 3191It is recommended that these links exist on all systems: 3192 3193/dev/core /proc/kcore symbolic Backward compatibility 3194/dev/ramdisk ram0 symbolic Backward compatibility 3195/dev/ftape qft0 symbolic Backward compatibility 3196/dev/bttv0 video0 symbolic Backward compatibility 3197/dev/radio radio0 symbolic Backward compatibility 3198/dev/i2o* /dev/i2o/* symbolic Backward compatibility 3199/dev/scd? sr? hard Alternate SCSI CD-ROM name 3200 3201 Locally defined links 3202 3203The following links may be established locally to conform to the 3204configuration of the system. This is merely a tabulation of existing 3205practice, and does not constitute a recommendation. However, if they 3206exist, they should have the following uses. 3207 3208/dev/mouse mouse port symbolic Current mouse device 3209/dev/tape tape device symbolic Current tape device 3210/dev/cdrom CD-ROM device symbolic Current CD-ROM device 3211/dev/cdwriter CD-writer symbolic Current CD-writer device 3212/dev/scanner scanner symbolic Current scanner device 3213/dev/modem modem port symbolic Current dialout device 3214/dev/root root device symbolic Current root filesystem 3215/dev/swap swap device symbolic Current swap device 3216 3217/dev/modem should not be used for a modem which supports dialin as 3218well as dialout, as it tends to cause lock file problems. If it 3219exists, /dev/modem should point to the appropriate primary TTY device 3220(the use of the alternate callout devices is deprecated). 3221 3222For SCSI devices, /dev/tape and /dev/cdrom should point to the 3223``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas 3224/dev/cdwriter and /dev/scanner should point to the appropriate generic 3225SCSI devices (/dev/sg*). 3226 3227/dev/mouse may point to a primary serial TTY device, a hardware mouse 3228device, or a socket for a mouse driver program (e.g. /dev/gpmdata). 3229 3230 Sockets and pipes 3231 3232Non-transient sockets and named pipes may exist in /dev. Common entries are: 3233 3234/dev/printer socket lpd local socket 3235/dev/log socket syslog local socket 3236/dev/gpmdata socket gpm mouse multiplexer 3237 3238 Mount points 3239 3240The following names are reserved for mounting special filesystems 3241under /dev. These special filesystems provide kernel interfaces that 3242cannot be provided with standard device nodes. 3243 3244/dev/pts devpts PTY slave filesystem 3245/dev/shm tmpfs POSIX shared memory maintenance access 3246 3247 **** TERMINAL DEVICES 3248 3249Terminal, or TTY devices are a special class of character devices. A 3250terminal device is any device that could act as a controlling terminal 3251for a session; this includes virtual consoles, serial ports, and 3252pseudoterminals (PTYs). 3253 3254All terminal devices share a common set of capabilities known as line 3255disciplines; these include the common terminal line discipline as well 3256as SLIP and PPP modes. 3257 3258All terminal devices are named similarly; this section explains the 3259naming and use of the various types of TTYs. Note that the naming 3260conventions include several historical warts; some of these are 3261Linux-specific, some were inherited from other systems, and some 3262reflect Linux outgrowing a borrowed convention. 3263 3264A hash mark (#) in a device name is used here to indicate a decimal 3265number without leading zeroes. 3266 3267 Virtual consoles and the console device 3268 3269Virtual consoles are full-screen terminal displays on the system video 3270monitor. Virtual consoles are named /dev/tty#, with numbering 3271starting at /dev/tty1; /dev/tty0 is the current virtual console. 3272/dev/tty0 is the device that should be used to access the system video 3273card on those architectures for which the frame buffer devices 3274(/dev/fb*) are not applicable. Do not use /dev/console 3275for this purpose. 3276 3277The console device, /dev/console, is the device to which system 3278messages should be sent, and on which logins should be permitted in 3279single-user mode. Starting with Linux 2.1.71, /dev/console is managed 3280by the kernel; for previous versions it should be a symbolic link to 3281either /dev/tty0, a specific virtual console such as /dev/tty1, or to 3282a serial port primary (tty*, not cu*) device, depending on the 3283configuration of the system. 3284 3285 Serial ports 3286 3287Serial ports are RS-232 serial ports and any device which simulates 3288one, either in hardware (such as internal modems) or in software (such 3289as the ISDN driver.) Under Linux, each serial ports has two device 3290names, the primary or callin device and the alternate or callout one. 3291Each kind of device is indicated by a different letter. For any 3292letter X, the names of the devices are /dev/ttyX# and /dev/cux#, 3293respectively; for historical reasons, /dev/ttyS# and /dev/ttyC# 3294correspond to /dev/cua# and /dev/cub#. In the future, it should be 3295expected that multiple letters will be used; all letters will be upper 3296case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the 3297"cu" device (e.g. /dev/cudp#). 3298 3299The names /dev/ttyQ# and /dev/cuq# are reserved for local use. 3300 3301The alternate devices provide for kernel-based exclusion and somewhat 3302different defaults than the primary devices. Their main purpose is to 3303allow the use of serial ports with programs with no inherent or broken 3304support for serial ports. Their use is deprecated, and they may be 3305removed from a future version of Linux. 3306 3307Arbitration of serial ports is provided by the use of lock files with 3308the names /var/lock/LCK..ttyX#. The contents of the lock file should 3309be the PID of the locking process as an ASCII number. 3310 3311It is common practice to install links such as /dev/modem 3312which point to serial ports. In order to ensure proper locking in the 3313presence of these links, it is recommended that software chase 3314symlinks and lock all possible names; additionally, it is recommended 3315that a lock file be installed with the corresponding alternate 3316device. In order to avoid deadlocks, it is recommended that the locks 3317are acquired in the following order, and released in the reverse: 3318 3319 1. The symbolic link name, if any (/var/lock/LCK..modem) 3320 2. The "tty" name (/var/lock/LCK..ttyS2) 3321 3. The alternate device name (/var/lock/LCK..cua2) 3322 3323In the case of nested symbolic links, the lock files should be 3324installed in the order the symlinks are resolved. 3325 3326Under no circumstances should an application hold a lock while waiting 3327for another to be released. In addition, applications which attempt 3328to create lock files for the corresponding alternate device names 3329should take into account the possibility of being used on a non-serial 3330port TTY, for which no alternate device would exist. 3331 3332 Pseudoterminals (PTYs) 3333 3334Pseudoterminals, or PTYs, are used to create login sessions or provide 3335other capabilities requiring a TTY line discipline (including SLIP or 3336PPP capability) to arbitrary data-generation processes. Each PTY has 3337a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named 3338/dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by 3339allowing each master side to be opened only once. 3340 3341Once the master side has been opened, the corresponding slave device 3342can be used in the same manner as any TTY device. The master and 3343slave devices are connected by the kernel, generating the equivalent 3344of a bidirectional pipe with TTY capabilities. 3345 3346Recent versions of the Linux kernels and GNU libc contain support for 3347the System V/Unix98 naming scheme for PTYs, which assigns a common 3348device, /dev/ptmx, to all the masters (opening it will automatically 3349give you a previously unassigned PTY) and a subdirectory, /dev/pts, 3350for the slaves; the slaves are named with decimal integers (/dev/pts/# 3351in our notation). This removes the problem of exhausting the 3352namespace and enables the kernel to automatically create the device 3353nodes for the slaves on demand using the "devpts" filesystem. 3354 3355