The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/conf/majors.i386

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
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    1 $FreeBSD$
    2 
    3 Hopefully, this list will one day be obsoleted by DEVFS, but for now
    4 this is the current allocation of device major numbers.
    5 
    6 For local use, you are encouraged to use the reserved numbers.
    7 
    8 If you intend the driver to be available, send email to the
    9 hackers@freebsd.org mailing list to see about having a number
   10 reserved for you.
   11 
   12 The most "complete" version of this will be the one in FreeBSD-current.
   13 (see http://www.freebsd.org/ or from ftp://ftp.cdrom.com/pub/FreeBSD/)
   14 
   15 blkdev  name            comments
   16 0       wd              ST506 disk controller (with IDE extensions)
   17 1       wfd             ATAPI Floppy client of "ata"
   18 2       fd              floppy disk
   19 3       wt              QIC-02/36 tape
   20 4       da              SCSI "direct acess" devices
   21 5       sa              SCSI "sequential access" devices
   22 6       cd              SCSI "cdrom" type
   23 7       mcd             Mitsumi CDROM interface
   24 8       lkm             assigned to Loadable Kernel modules
   25 9       lkm             assigned to Loadable Kernel modules
   26 10      lkm             assigned to Loadable Kernel modules
   27 11      lkm             assigned to Loadable Kernel modules
   28 12      lkm             assigned to Loadable Kernel modules
   29 13      lkm             assigned to Loadable Kernel modules
   30 14      ??              reserved for local use
   31 15      vn              vnode disk device
   32 16      scd             Sony CDROM interface
   33 17      matcd           Matsushita/Panasonic/Creative(SB) CDROM interface
   34 18      ata             "device independent" ATA/IDE driver
   35 19      acdb            ATAPI CDROM client of "ata"
   36 21      ccd             concatenated disk
   37 22      gd              Geometry disk.
   38 24      wstb            ATAPI tape client of "ata"
   39 25      vinum           RAID fs
   40 26      sw              VM internal swap device
   41 27      myx             Mylex RAID (ulf@alameda.net)
   42 28      fla             M-Systems DiskOnChip(r)
   43 29      id              Intelligent Disk [Array] (md@doc.ic.ac.uk)
   44 100     ??              entries from 100-127 are reserved for local use
   45 127     ??              entries from 100-127 are reserved for local use
   46 
   47 chrdev  name            comments
   48 0       cn              console
   49 1       ctty            /dev/tty
   50 2       mm              /dev/mem,kmem,etc
   51 3       wd              ST506 disk controller (with IDE extensions)
   52 4       swap            /dev/drum
   53 5       pts             pseudo tty "tty" half
   54 6       ptc             pseudo tty "master" half
   55 7       log             system log
   56 8       bqu             B004 transputer board
   57 9       fd              floppy disk
   58 10      wt              QIC-02/36 tape
   59 11      spigot          Video capture?
   60 12      sc              syscons/pcvt virtual consoles
   61 13      da              SCSI "direct access devices"
   62 14      sa              SCSI "sequential access devices"
   63 15      cd              SCSI "CDROM type"
   64 16      lpt             PC parallel printer port
   65 17      ch              SCSI changer
   66 18      su              SCSI universal type
   67 19      tw              X-10 power interface
   68 20      ??              reserved for local use
   69 21      psm             PS/2 Mouse
   70 22      fd              (/dev/stdin etc)
   71 23      bpf             Berkeley Packet Filter
   72 24      pca             PC speaker (/dev/pcaudio)
   73 25      ??              was vat
   74 26      spkr            PC speaker (/dev/spkr)
   75 27      mse             Microsoft bus-mouse
   76 28      sio             16450/16550 serial
   77 29      mcd             Mitsumi CDROM interface
   78 30      snd             sound driver system
   79 31      pass            SCSI "Application Pass-Thru"
   80 32      lkmc            Loadable Kernel Module Controller
   81 33      lkm             assigned to Loadable Kernel Modules
   82 34      lkm             assigned to Loadable Kernel Modules
   83 35      lkm             assigned to Loadable Kernel Modules
   84 36      lkm             assigned to Loadable Kernel Modules
   85 37      lkm             assigned to Loadable Kernel Modules
   86 38      lkm             assigned to Loadable Kernel Modules
   87 39      apm             Advanced Power Management
   88 40      ctx             Cortex
   89 41      ??              was socksys
   90 42      cx              Cronyx/Sigma serial adapter
   91 43      vn              vnode "disk" device
   92 44      gp              GPIB
   93 45      scd             Sony CDROM interface
   94 46      matcd           Matsushita/Panasonic/Creative(SB) CDROM interface
   95 47      gsc             Genius Scanner
   96 48      cy              Cyclades
   97 49      ssc             SCSI super device
   98 50      card            pcmcia cards
   99 51      joy             joystick
  100 52      tun             IP tunnel device
  101 53      snp             tty snoop
  102 54      OLDnic          ISDN system
  103 55      OLDisdn         ISDN system
  104 56      OLDity          ISDN system
  105 57      OLDitel         ISDN system
  106 58      dgb             Digiboard PC/Xe
  107 59      OLDispy         ISDN system
  108 60      OLDnnic         ISDN system
  109 61      pt              SCSI "processor type"
  110 62      worm            SCSI "worm type"
  111 63      rc              Riscom/8 driver
  112 64      ??              Talisman
  113 65      targ            SCSI target sample driver
  114 66      labpc           National Instruments LabPC
  115 67      meteor          Matrox Meteor video capture
  116 68      si              Specialix SI/XIO (peter@freebsd.org)
  117 69      acd             ATAPI CDROM client of "ata"
  118 71      asc             AmiScan driver
  119 72      stl             Stallion (cd1400 based) (gerg@stallion.oz.au)
  120 73      ??              was qcam
  121 74      ccd             concatenated disk
  122 75      stli            Stallion (intelligent cdk based) (gerg@stallion.oz.au)
  123 76      scc             IBM Smart Capture Card (ohashi@mickey.ai.kyutech.ac.jp)
  124 77      cyy             Cyclades Ye/PCI serial card
  125 78      pci             PCI bus
  126 79      ipl             IP Filter
  127 80      xdcp            Assigned to Chris Ficklin <chris@serengeti.com>
  128 81      rp              RocketPort/Steve Gericke <steveg@comtrol.com>
  129 82      ppi             Generic Parallel I/O <Nicolas.Souchu@prism.uvsq.fr>
  130 83      can             CAN16-2 CAN-PC Interface
  131 84      dtfp            Datum Time and Frequency processor (louie@UU.NET)
  132 85      vesa            VESA support device (j_mini@efn.org)
  133 86      alog            Industrial Computer Source AIO8-P driver (deprecated)
  134 87      wfd             ATAPI floppy client of "ata"
  135 88      dpt             DPT RAID Controller <shimon@i-connect.net>
  136 89      pps             Pulse-Per-Second timing interface
  137 90      wst             ATAPI tape client of "ata"
  138 91      vinum           RAID fs
  139 92      bktr            Bt848 video capture driver (hasty@star-gate.com)
  140 93      coda            CODA filesystem.
  141 94      loran           Loran-C Receiver
  142 95      gd              Geometry disk
  143 96      altq            alternate queueing (including cbq, red, wfq)
  144 97      myx             Mylex RAID controller (ulf@alameda.net)
  145 98      loe             Loopback pseudo-ethernet (sbabkin@dcn.att.com)
  146 99      ct              Cronyx/Tau serial adaptor
  147 100     xrpu            Xilinx Reprogrammable Processing Unit
  148 101     dgm             Digiboard PC/Xem
  149 102     fla             M-Systems DiskOnChip(r)
  150 103     streams         SVR4 Streams emulation <newton@atdot.dotat.org>
  151 104     xpt             CAM Transport Layer Services
  152 105     iic             I2C bus generic i/o
  153 106     smb             System Management Bus generic i/o
  154 107     3dfx            3Dfx driver (shocking@prth.pgs.com)
  155 108     usb             Universal Serial Bus (nick.hibma@jrc.it)
  156 109     id              Intelligent Disk [Array] (md@doc.ic.ac.uk)
  157 110     ses             SCSI Environmental Services driver (mjacob@feral.com)
  158 111     ums             USB Mouse (nick.hibma@jrc.it)
  159 112     kbd             keyboard
  160 113     ulpt            USB Printer (nick.hibma@jrc.it)
  161 114     ugen            USB Generic device (nick.hibma@jrc.it)
  162 200     ??              entries from 200-255 are reserved for local use
  163 255     ??              entries from 200-255 are reserved for local use

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