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- Lines: 570
- Date:
Tue Aug 29 09:52:50 1995
- Orig file:
v1.3.21/linux/Documentation/devices.txt
- Orig date:
Thu Jan 1 02:00:00 1970
diff -u --recursive --new-file v1.3.21/linux/Documentation/devices.txt linux/Documentation/devices.txt
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+ LINUX ALLOCATED DEVICES
+
+ Maintained by H. Peter Anvin <[email protected]>
+
+ Last revised: August 28, 1995
+
+This list is the successor to Rick Miller's Linux Device List, which
+he stopped maintaining when he lost network access in 1993. It is a
+registry of allocated major device numbers, as well as the recommended
+/dev directory nodes for these devices.
+
+This list is available via FTP from ftp.yggdrasil.com in the directory
+/pub/device-list; filename is devices.<format> where <format> is txt
+(ASCII), tex (LaTeX), dvi (DVI) or ps (PostScript). In cases of
+discrepancy, the LaTeX version has priority.
+
+This document is included by reference into the Linux Filesystem
+Standard (FSSTND). The FSSTND is available via FTP from
+tsx-11.mit.edu in the directory /pub/linux/docs/linux-standards/fsstnd.
+
+To have a major number allocated, or a minor number in situations
+where that applies (e.g. busmice), please contact me. Also, if you
+have additional information regarding any of the devices listed below,
+or if I have made a mistake, I would greatly appreciate a note.
+
+Allocations marked (68k) apply to Linux/68k only.
+
+ 0 Unnamed devices (NFS mounts, loopback devices)
+ 0 = reserved as null device number
+
+ 1 char Memory devices
+ 1 = /dev/mem Physical memory access
+ 2 = /dev/kmem Kernel virtual memory access
+ 3 = /dev/null Null device
+ 4 = /dev/port I/O port access
+ 5 = /dev/zero Null byte source
+ 6 = /dev/core OBSOLETE - replaced by /proc/kcore
+ 7 = /dev/full Returns ENOSPC on write
+ 8 = /dev/random Nondeterministic random number gen.
+ 9 = /dev/urandom Faster, less secure random number gen.
+ block RAM disk
+ 1 = /dev/ramdisk RAM disk
+
+ 2 char Reserved for PTY's <[email protected]>
+ block Floppy disks
+ 0 = /dev/fd0 First floppy disk autodetect
+ 1 = /dev/fd1 Second floppy disk autodetect
+ 2 = /dev/fd2 Third floppy disk autodetect
+ 3 = /dev/fd3 Fourth floppy disk autodetect
+
+ To specify format, add to the autodetect device number:
+ 0 = /dev/fd? Autodetect format
+ 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
+ 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
+ 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
+ 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
+ 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
+ 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
+ 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
+ 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
+ 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
+ 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
+ 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
+
+ 12 = /dev/fd?u360 3.5" 360K Double Density
+ 120 = /dev/fd?u800 3.5" 800K Double Density(1)
+ 52 = /dev/fd?u820 3.5" 820K Double Density(2)
+ 68 = /dev/fd?u830 3.5" 830K Double Density
+ 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
+ 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
+ 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
+ 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
+ 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
+ 60 = /dev/fd?u1722 3.5" 1722K High Density
+ 76 = /dev/fd?u1743 3.5" 1743K High Density
+ 96 = /dev/fd?u1760 3.5" 1760K High Density
+ 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
+ 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
+ 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
+ 104 = /dev/fd?u3200 3.5" 3200K Extra Density
+ 108 = /dev/fd?u3520 3.5" 3520K Extra Density
+ 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
+
+ 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
+
+ (1) Autodetectable format
+ (2) Autodetectable format in a Double Density (720K) drive only
+ (3) Autodetectable format in a High Density (1440K) drive only
+
+ NOTE: THe letter in the device name (d, q, h or u)
+ signifies the type of drive: 5.25" Double Density (d),
+ 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
+ (any model, u). The use of the capital letters D, H
+ and E for the 3.5" models have been deprecated, since
+ the drive type is insignificant for these devices.
+
+ 3 char Reserved for pty's <[email protected]>
+ block First MFM, RLL and IDE hard disk/CD-ROM interface
+ 0 = /dev/hda Master: whole disk (or CD-ROM)
+ 64 = /dev/hdb Slave: whole disk (or CD-ROM)
+
+ For partitions, add to the whole disk device number:
+ 0 = /dev/hd? Whole disk
+ 1 = /dev/hd?1 First primary partition
+ 2 = /dev/hd?2 Second primary partition
+ 3 = /dev/hd?3 Third primary partition
+ 4 = /dev/hd?4 Fourth primary partition
+ 5 = /dev/hd?5 First logical partition
+ 6 = /dev/hd?6 Second logical partition
+ 7 = /dev/hd?7 Third logical partition
+ ...
+ 63 = /dev/hd?63 59th logical partition
+
+ 4 char TTY devices
+ 0 = /dev/console Console device
+
+ 1 = /dev/tty1 First virtual console
+ ...
+ 63 = /dev/tty63 63rd virtual console
+ 64 = /dev/ttyS0 First serial port
+ ...
+ 127 = /dev/ttyS63 64th serial port
+ 128 = /dev/ptyp0 First pseudo-tty master
+ ...
+ 191 = /dev/ptysf 64th pseudo-tty master
+ 192 = /dev/ttyp0 First pseudo-tty slave
+ ...
+ 255 = /dev/ttysf 64th pseudo-tty slave
+
+ Pseudo-tty's are named as follows:
+ * Masters are "pty", slaves are "tty";
+ * the fourth letter is one of p, q, r, s indicating
+ the 1st, 2nd, 3rd, 4th series of 16 pseudo-ttys each, and
+ * the fifth letter is one of 0123456789abcdef indicating
+ the position within the series.
+
+ 5 char Alternate TTY devices
+ 0 = /dev/tty Current TTY device
+ 64 = /dev/cua0 Callout device corresponding to ttyS0
+ ...
+ 127 = /dev/cua63 Callout device corresponding to ttyS63
+
+ 6 char Parallel printer devices
+ 0 = /dev/lp0 First parallel printer (0x3bc)
+ 1 = /dev/lp1 Second parallel printer (0x378)
+ 2 = /dev/lp2 Third parallel printer (0x278)
+
+ Not all computers have the 0x3bc parallel port; hence
+ the "first" printer may be either /dev/lp0 or
+ /dev/lp1.
+
+ 7 char Virtual console capture devices
+ 0 = /dev/vcs Current vc text contents
+ 1 = /dev/vcs1 tty1 text contents
+ ...
+ 63 = /dev/vcs63 tty63 text contents
+ 128 = /dev/vcsa Current vc text/attribute contents
+ 129 = /dev/vcsa1 tty1 text/attribute contents
+ ...
+ 191 = /dev/vcsa63 tty63 text/attribute contents
+
+ NOTE: These devices permit both read and write access.
+
+ 8 block SCSI disk devices
+ 0 = /dev/sda First SCSI disk whole disk
+ 16 = /dev/sdb Second SCSI disk whole disk
+ 32 = /dev/sdc Third SCSI disk whole disk
+ ...
+ 240 = /dev/sdp Sixteenth SCSI disk whole disk
+
+ Partitions are handled in the same way as for IDE
+ disks (see major number 3) except that the limit on
+ logical partitions is 11.
+
+ 9 char SCSI tape devices
+ 0 = /dev/st0 First SCSI tape
+ 1 = /dev/st1 Second SCSI tape
+ ...
+ 128 = /dev/nst0 First SCSI tape, no rewind-on-close
+ 129 = /dev/nst1 Second SCSI tape, no rewind-on-close
+ ...
+ block Multiple disk devices
+ 0 = /dev/md0 First device group
+ 1 = /dev/md1 Second device group
+ ...
+
+ The multiple devices driver is used to span a
+ filesystem across multiple physical disks.
+
+ 10 char Non-serial mice, misc features
+ 0 = /dev/logibm Logitech bus mouse
+ 1 = /dev/psaux PS/2-style mouse port
+ 2 = /dev/inportbm Microsoft Inport bus mouse
+ 3 = /dev/atibm ATI XL bus mouse
+ 4 = /dev/jbm J-mouse
+ 4 = /dev/amigamouse Amiga Mouse (68k)
+ 5 = /dev/atarimouse Atari Mouse (68k)
+ 128 = /dev/beep Fancy beep device
+ 129 = /dev/modreq Kernel module load request
+
+ The use of the suffix -mouse instead of -bm or -aux
+ has also been used.
+
+ 11 block SCSI CD-ROM devices
+ 0 = /dev/sr0 First SCSI CD-ROM
+ 1 = /dev/sr1 Second SCSI CD-ROM
+ ...
+
+ The prefix /dev/scd instead of /dev/sr has been used
+ as well, and might make more sense.
+
+ 12 char QIC-02 tape
+ 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
+ 3 = /dev/tpqic11 QIC-11, rewind-on-close
+ 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
+ 5 = /dev/tpqic24 QIC-24, rewind-on-close
+ 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
+ 7 = /dev/tpqic120 QIC-120, rewind-on-close
+ 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
+ 9 = /dev/tpqic150 QIC-150, rewind-on-close
+
+ The device names specified are proposed -- if there
+ are "standard" names for these devices, please let me know.
+
+ block MSCDEX CD-ROM callback support
+ 0 = /dev/dos_cd0 First MSCDEX CD-ROM
+ 1 = /dev/dos_cd1 Second MSCDEX CD-ROM
+ ...
+
+ 13 char PC speaker
+ 0 = /dev/pcmixer Emulates /dev/mixer
+ 1 = /dev/pcsp Emulates /dev/dsp (8-bit)
+ 4 = /dev/pcaudio Emulates /dev/audio
+ 5 = /dev/pcsp16 Emulates /dev/dsp (16-bit)
+ block 8-bit MFM/RLL/IDE controller
+ 0 = /dev/xda First XT disk whole disk
+ 64 = /dev/xdb Second XT disk whole disk
+
+ Partitions are handled in the same way as IDE disks
+ (see major number 3).
+
+ 14 char Sound card
+ 0 = /dev/mixer Mixer control
+ 1 = /dev/sequencer Audio sequencer
+ 2 = /dev/midi00 First MIDI port
+ 3 = /dev/dsp Digital audio
+ 4 = /dev/audio Sun-compatible digital audio
+ 6 = /dev/sndstat Sound card status information
+ 8 = /dev/sequencer2 Sequencer -- alternate device
+ 16 = /dev/mixer1 Second soundcard mixer control
+ 17 = /dev/patmgr0 Sequencer patch manager
+ 18 = /dev/midi01 Second MIDI port
+ 19 = /dev/dsp1 Second soundcard digital audio
+ 20 = /dev/audio1 Second soundcard Sun digital audio
+ 33 = /dev/patmgr1 Sequencer patch manager
+ 34 = /dev/midi02 Third MIDI port
+ 50 = /dev/midi03 Fourth MIDI port
+ block BIOS harddrive callback support
+ 0 = /dev/dos_hda First BIOS harddrive whole disk
+ 64 = /dev/dos_hdb Second BIOS harddrive whole disk
+ 128 = /dev/dos_hdc Third BIOS harddrive whole disk
+ 192 = /dev/dos_hdd Fourth BIOS harddrive whole disk
+
+ Partitions are handled in the same way as IDE disks
+ (see major number 3).
+
+ 15 char Joystick
+ 0 = /dev/js0 First joystick
+ 1 = /dev/js1 Second joystick
+ block Sony CDU-31A/CDU-33A CD-ROM
+ 0 = /dev/sonycd Sony CDU-31a CD-ROM
+
+ 16 char Reserved for scanners
+ block GoldStar CD-ROM
+ 0 = /dev/gscd GoldStar CD-ROM
+
+ 17 char Chase serial card
+ 0 = /dev/ttyH0 First Chase port
+ 1 = /dev/ttyH1 Second Chase port
+ ...
+ block Optics Storage CD-ROM
+ 0 = /dev/optcd Optics Storage CD-ROM
+
+ 18 char Chase serial card - alternate devices
+ 0 = /dev/cuh0 Callout device corresponding to ttyH0
+ 1 = /dev/cuh1 Callout device corresponding to ttyH1
+ ...
+ block Sanyo CD-ROM
+ 0 = /dev/sjcd Sanyo CD-ROM
+
+ 19 char Cyclades serial card
+ 32 = /dev/ttyC0 First Cyclades port
+ ...
+ 63 = /dev/ttyC31 32nd Cyclades port
+
+ It would make more sense for these to start at 0...
+
+ block "Double" compressed disk
+ 0 = /dev/double0 First compressed disk
+ ...
+ 7 = /dev/double7 Eighth compressed disk
+ 128 = /dev/cdouble0 Mirror of first compressed disk
+ ...
+ 135 = /dev/cdouble7 Mirror of eighth compressed disk
+
+ See the Double documentation for the meaning of the
+ mirror devices.
+
+ 20 char Cyclades serial card - alternate devices
+ 32 = /dev/cub0 Callout device corresponding to ttyC0
+ ...
+ 63 = /dev/cub31 Callout device corresponding to ttyC31
+ block Hitachi CD-ROM (under development)
+ 0 = /dev/hitcd Hitachi CD-ROM
+
+ 21 char Generic SCSI access
+ 0 = /dev/sg0 First generic SCSI device
+ 1 = /dev/sg1 Second generic SCSI device
+ ...
+
+ 22 char Digiboard serial card
+ 0 = /dev/ttyD0 First Digiboard port
+ 1 = /dev/ttyD1 Second Digiboard port
+ ...
+ block Second IDE hard disk/CD-ROM interface
+ 0 = /dev/hdc Master: whole disk (or CD-ROM)
+ 64 = /dev/hdd Slave: whole disk (or CD-ROM)
+
+ Partitions are handled the same way as for the first
+ interface (see major number 3).
+
+ 23 char Digiboard serial card - alternate devices
+ 0 = /dev/cud0 Callout device corresponding to ttyD0
+ 1 = /dev/cud1 Callout device corresponding to ttyD1
+ ...
+ block Mitsumi proprietary CD-ROM
+ 0 = /dev/mcd Mitsumi CD-ROM
+
+ 24 char Stallion serial card
+ 0 = /dev/ttyE0 Stallion port 0 card 0
+ 1 = /dev/ttyE1 Stallion port 1 card 0
+ ...
+ 64 = /dev/ttyE64 Stallion port 0 card 1
+ 65 = /dev/ttyE65 Stallion port 1 card 1
+ ...
+ 128 = /dev/ttyE128 Stallion port 0 card 2
+ 129 = /dev/ttyE129 Stallion port 1 card 2
+ ...
+ 192 = /dev/ttyE192 Stallion port 0 card 3
+ 193 = /dev/ttyE193 Stallion port 1 card 3
+ ...
+ block Sony CDU-535 CD-ROM
+ 0 = /dev/cdu535 Sony CDU-535 CD-ROM
+
+ 25 char Stallion serial card - alternate devices
+ 0 = /dev/cue0 Callout device corresponding to ttyE0
+ 1 = /dev/cue1 Callout device corresponding to ttyE1
+ ...
+ 64 = /dev/cue64 Callout device corresponding to ttyE64
+ 65 = /dev/cue65 Callout device corresponding to ttyE65
+ ...
+ 128 = /dev/cue128 Callout device corresponding to ttyE128
+ 129 = /dev/cue129 Callout device corresponding to ttyE129
+ ...
+ 192 = /dev/cue192 Callout device corresponding to ttyE192
+ 193 = /dev/cue193 Callout device corresponding to ttyE193
+ ...
+ block First Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
+ 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
+ 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
+ 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
+
+ 26 char Frame grabbers
+ 0 = /dev/wvisfgrab Quanta WinVision frame grabber
+ block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
+ 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
+ 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
+ 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
+
+ 27 char QIC-117 tape
+ 0 = /dev/ftape QIC-117 tape
+ block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
+ 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
+ 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
+ 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
+
+ 28 char Stallion serial card - card programming
+ 0 = /dev/staliomem0 First Stallion card I/O memory
+ 1 = /dev/staliomem1 Second Stallion card I/O memory
+ 2 = /dev/staliomem2 Third Stallion card I/O memory
+ 3 = /dev/staliomem3 Fourth Stallion card I/O memory
+ block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
+ 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
+ 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
+ 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
+ block ACSI disk (68k)
+ 0 = /dev/ada First ACSI disk whole disk
+ 16 = /dev/adb Second ACSI disk whole disk
+ 32 = /dev/adc Third ACSI disk whole disk
+ ...
+ 240 = /dev/adp 16th ACSI disk whole disk
+
+ Partitions are handled in the same way as for IDE
+ disks (see major number 3) except that the limit on
+ logical partitions is 11.
+
+ 29 char Universal frame buffer
+ 0 = /dev/fb0current First frame buffer
+ 1 = /dev/fb0autodetect
+ ...
+ 16 = /dev/fb1current Second frame buffer
+ 17 = /dev/fb1autodetect
+ ...
+ block Aztech/Orchid/Okano/Wearnes CD-ROM
+ 0 = /dev/aztcd Aztech CD-ROM
+
+ The universal frame buffer device is currenly only
+ supported on Linux/68k. The "current" device accesses
+ the fame buffer at current resolution; the
+ "autodetect" one at bootup (default) resolution.
+ Minor numbers 2-15 within each frame buffer assignment
+ are used for specific device-dependent resolutions.
+ There appears to be no standard naming for these devices.
+
+ 30 char iBCS-2 compatibility devices
+ 0 = /dev/socksys Socket access
+ 1 = /dev/spx SVR3 local X interface
+ 2 = /dev/inet/arp Network access
+ 2 = /dev/inet/icmp Network access
+ 2 = /dev/inet/ip Network access
+ 2 = /dev/inet/udp Network access
+ 2 = /dev/inet/tcp Network access
+
+ iBCS-2 requires /dev/nfsd to be a link to
+ /dev/socksys, and /dev/X0R to be a link to /dev/null.
+
+ block Philips LMS CM-205 CD-ROM
+ 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
+
+ /dev/lmscd is an older name for this device. This
+ driver does not work with the CM-205MS CD-ROM.
+
+ 31 char MPU-401 MIDI
+ 0 = /dev/mpu401data MPU-401 data port
+ 1 = /dev/mpu401stat MPU-401 status port
+ block ROM/flash memory card
+ 0 = /dev/rom0 First ROM card (rw)
+ ...
+ 7 = /dev/rom7 Eighth ROM card (rw)
+ 8 = /dev/rrom0 First ROM card (ro)
+ ...
+ 15 = /dev/rrom7 Eighth ROM card (ro)
+ 16 = /dev/flash0 First flash memory card (rw)
+ ...
+ 23 = /dev/flash7 Eighth flash memory card (rw)
+ 24 = /dev/rflash0 First flash memory card (ro)
+ ...
+ 31 = /dev/rflash7 Eighth flash memory card (ro)
+
+ The read-write (rw) devices support back-caching
+ written data in RAM, as well as writing to flash RAM
+ devices. The read-only devices (ro) support reading
+ only.
+
+ 32 char Specialix serial card
+ 0 = /dev/ttyX0 First Specialix port
+ 1 = /dev/ttyX1 Second Specialix port
+ ...
+ block Philips LMS CM-206 CD-ROM
+ 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
+
+ 33 char Specialix serial card - alternate devices
+ 0 = /dev/cux0 Callout device corresponding to ttyX0
+ 1 = /dev/cux1 Callout device corresponding to ttyX1
+ ...
+ block Modular RAM disk device
+ 0 = /dev/ram0 First modular RAM disk
+ 1 = /dev/ram1 Second modular RAM disk
+ ...
+ 255 = /dev/ram255 256th modular RAM disk
+
+ 33 block Third IDE hard disk/CD-ROM interface
+ 0 = /dev/hde Master: whole disk (or CD-ROM)
+ 64 = /dev/hdf Slave: whole disk (or CD-ROM)
+
+ 34 block Fourth IDE hard disk/CD-ROM interface
+ 0 = /dev/hdg Master: whole disk (or CD-ROM)
+ 64 = /dev/hdh Slave: whole disk (or CD-ROM)
+
+ For both IDE interfaces: partitions are handled the
+ same way as for the first interface (see major number
+ 3).
+
+ 35-223 UNALLOCATED
+
+224-254 LOCAL USE
+ Allocated for local/experimental use
+
+ Please note that MAX_CHRDEV and MAX_BLKDEV in
+ linux/include/linux/major.h must be set to a value
+ greater than the highest used major number. For a
+ kernel using local/experimental devices, it is
+ probably easiest to set both of these equal to 256. The
+ memory cost above using the default value of 64 is 3K.
+
+255 RESERVED
+
+
+
+
+ ADDITIONAL /dev DIRECTORY ENTRIES
+
+This section details additional entries that should or may exist in
+the /dev directory. It is preferred that symbolic links use the same
+form (absolute or relative) as is indicated here. Links are
+classified as "hard" or "symbolic" depending on the preferred type of
+link; if possible, the indicated type of link should be used.
+
+
+ Compulsory links
+
+These links should exist on all systems:
+
+/dev/fd /proc/self/fd symbolic File descriptors
+/dev/stdin fd/0 symbolic stdin file descriptor
+/dev/stdout fd/1 symbolic stdout file descriptor
+/dev/stderr fd/2 symbolic stderr file descriptor
+
+
+ Recommended links
+
+It is recommended that these links exist on all systems:
+
+/dev/X0R null symbolic Used by iBCS-2
+/dev/nfsd socksys symbolic Used by iBCS-2
+/dev/core /proc/kcore symbolic Backward compatibility
+/dev/scd? /dev/sr? hard Alternate SCSI CD-ROM name
+
+
+ Locally defined links
+
+The following links may be established locally to conform to the
+configuration of the system. This is merely a tabulation of existing
+practice, and does not constitute a recommendation. However, if they
+exist, they should have the following uses.
+
+/dev/mouse mouse port symbolic Current mouse device
+/dev/tape tape device symbolic Current tape device
+/dev/cdrom CD-ROM device symbolic Current CD-ROM device
+/dev/modem modem port symbolic Current dialout device
+/dev/root root device symbolic Current root filesystem
+/dev/swap swap device symbolic Current swap device
+
+/dev/modem should not be used for a modem which supports dialin as
+well as dialout, as it tends to cause lock file problems. If it
+exists, /dev/modem shold point to the appropriate dialout (alternate)
+device.
+
+
+ Sockets and pipes
+
+Non-transient sockets and named pipes may exist in /dev. Common entries are:
+
+/dev/printer socket lpd local socket
+/dev/log socket syslog local socket
FUNET's LINUX-ADM group, [email protected]
TCL-scripts by Sam Shen, [email protected]
with Sam's (original) version of this