- LINUX ALLOCATED DEVICES (4.x+ version)
+Linux allocated devices (4.x+ version)
+======================================
This list is the Linux Device List, the official registry of allocated
-device numbers and /dev directory nodes for the Linux operating
+device numbers and ``/dev`` directory nodes for the Linux operating
system.
The LaTeX version of this document is no longer maintained, nor is
the document that used to reside at lanana.org. This version in the
mainline Linux kernel is the master document. Updates shall be sent
-as patches to the kernel maintainers (see the SubmittingPatches document).
+as patches to the kernel maintainers (see the
+:ref:`Documentation/SubmittingPatches <submittingpatches>` document).
Specifically explore the sections titled "CHAR and MISC DRIVERS", and
"BLOCK LAYER" in the MAINTAINERS file to find the right maintainers
to involve for character and block devices.
an unreasonable effort.
- **** DEVICE DRIVERS AUTHORS PLEASE READ THIS ****
+.. attention::
-Linux now has extensive support for dynamic allocation of device numbering
-and can use sysfs and udev (systemd) to handle the naming needs. There are
-still some exceptions in the serial and boot device area. Before asking
-for a device number make sure you actually need one.
+ DEVICE DRIVERS AUTHORS PLEASE READ THIS
-To have a major number allocated, or a minor number in situations
-where that applies (e.g. busmice), please submit a patch and send to
-the authors as indicated above.
+ Linux now has extensive support for dynamic allocation of device numbering
+ and can use ``sysfs`` and ``udev`` (``systemd``) to handle the naming needs.
+ There are still some exceptions in the serial and boot device area. Before
+ asking for a device number make sure you actually need one.
-Keep the description of the device *in the same format
-as this list*. The reason for this is that it is the only way we have
-found to ensure we have all the requisite information to publish your
-device and avoid conflicts.
+ To have a major number allocated, or a minor number in situations
+ where that applies (e.g. busmice), please submit a patch and send to
+ the authors as indicated above.
-Finally, sometimes we have to play "namespace police." Please don't be
-offended. We often get submissions for /dev names that would be bound
-to cause conflicts down the road. We are trying to avoid getting in a
-situation where we would have to suffer an incompatible forward
-change. Therefore, please consult with us *before* you make your
-device names and numbers in any way public, at least to the point
-where it would be at all difficult to get them changed.
+ Keep the description of the device *in the same format
+ as this list*. The reason for this is that it is the only way we have
+ found to ensure we have all the requisite information to publish your
+ device and avoid conflicts.
-Your cooperation is appreciated.
+ Finally, sometimes we have to play "namespace police." Please don't be
+ offended. We often get submissions for ``/dev`` names that would be bound
+ to cause conflicts down the road. We are trying to avoid getting in a
+ situation where we would have to suffer an incompatible forward
+ change. Therefore, please consult with us **before** you make your
+ device names and numbers in any way public, at least to the point
+ where it would be at all difficult to get them changed.
+ Your cooperation is appreciated.
- 0 Unnamed devices (e.g. non-device mounts)
+::
+
+ 0 Unnamed devices (e.g. non-device mounts)
0 = reserved as null device number
See block major 144, 145, 146 for expansion areas.
- 1 char Memory devices
+ 1 char Memory devices
1 = /dev/mem Physical memory access
2 = /dev/kmem Kernel virtual memory access
3 = /dev/null Null device
export the buffered printk records.
12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore
- 1 block RAM disk
+ 1 block RAM disk
0 = /dev/ram0 First RAM disk
1 = /dev/ram1 Second RAM disk
...
by the boot loader; newer kernels use /dev/ram0 for
the initrd.
- 2 char Pseudo-TTY masters
+ 2 char Pseudo-TTY masters
0 = /dev/ptyp0 First PTY master
1 = /dev/ptyp1 Second PTY master
...
master multiplex (/dev/ptmx) to acquire a PTY on
demand.
- 2 block Floppy disks
+ 2 block Floppy disks
0 = /dev/fd0 Controller 0, drive 0, autodetect
1 = /dev/fd1 Controller 0, drive 1, autodetect
2 = /dev/fd2 Controller 0, drive 2, autodetect
and E for the 3.5" models have been deprecated, since
the drive type is insignificant for these devices.
- 3 char Pseudo-TTY slaves
+ 3 char Pseudo-TTY slaves
0 = /dev/ttyp0 First PTY slave
1 = /dev/ttyp1 Second PTY slave
...
These are the old-style (BSD) PTY devices; Unix98
devices are on major 136 and above.
- 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
+ 3 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)
Other versions of Linux use partitioning schemes
appropriate to their respective architectures.
- 4 char TTY devices
+ 4 char TTY devices
0 = /dev/tty0 Current virtual console
1 = /dev/tty1 First virtual console
number for BSD PTY devices. As of Linux 2.1.115, this
is no longer supported. Use major numbers 2 and 3.
- 4 block Aliases for dynamically allocated major devices to be used
+ 4 block Aliases for dynamically allocated major devices to be used
when its not possible to create the real device nodes
because the root filesystem is mounted read-only.
- 0 = /dev/root
+ 0 = /dev/root
- 5 char Alternate TTY devices
+ 5 char Alternate TTY devices
0 = /dev/tty Current TTY device
1 = /dev/console System console
2 = /dev/ptmx PTY master multiplex
the section on terminal devices for more information
on /dev/console.
- 6 char Parallel printer devices
+ 6 char Parallel printer devices
0 = /dev/lp0 Parallel printer on parport0
1 = /dev/lp1 Parallel printer on parport1
...
between parallel ports and I/O addresses. Instead,
they are redirected through the parport multiplex layer.
- 7 char Virtual console capture devices
+ 7 char Virtual console capture devices
0 = /dev/vcs Current vc text contents
1 = /dev/vcs1 tty1 text contents
...
NOTE: These devices permit both read and write access.
- 7 block Loopback devices
+ 7 block Loopback devices
0 = /dev/loop0 First loop device
1 = /dev/loop1 Second loop device
...
associated with block devices. The binding to the
loop devices is handled by mount(8) or losetup(8).
- 8 block SCSI disk devices (0-15)
+ 8 block SCSI disk devices (0-15)
0 = /dev/sda First SCSI disk whole disk
16 = /dev/sdb Second SCSI disk whole disk
32 = /dev/sdc Third SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 9 char SCSI tape devices
+ 9 char SCSI tape devices
0 = /dev/st0 First SCSI tape, mode 0
1 = /dev/st1 Second SCSI tape, mode 0
...
ioctl()'s can be used to rewind the tape regardless of
the device used to access it.
- 9 block Metadisk (RAID) devices
+ 9 block Metadisk (RAID) devices
0 = /dev/md0 First metadisk group
1 = /dev/md1 Second metadisk group
...
The metadisk driver is used to span a
filesystem across multiple physical disks.
- 10 char Non-serial mice, misc features
+ 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
240-254 Reserved for local use
255 Reserved for MISC_DYNAMIC_MINOR
- 11 char Raw keyboard device (Linux/SPARC only)
+ 11 char Raw keyboard device (Linux/SPARC only)
0 = /dev/kbd Raw keyboard device
- 11 char Serial Mux device (Linux/PA-RISC only)
+ 11 char Serial Mux device (Linux/PA-RISC only)
0 = /dev/ttyB0 First mux port
1 = /dev/ttyB1 Second mux port
...
- 11 block SCSI CD-ROM devices
+ 11 block SCSI CD-ROM devices
0 = /dev/scd0 First SCSI CD-ROM
1 = /dev/scd1 Second SCSI CD-ROM
...
The prefix /dev/sr (instead of /dev/scd) has been deprecated.
- 12 char QIC-02 tape
+ 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
The device names specified are proposed -- if there
are "standard" names for these devices, please let me know.
- 12 block
+ 12 block
- 13 char Input core
+ 13 char Input core
0 = /dev/input/js0 First joystick
1 = /dev/input/js1 Second joystick
...
Each device type has 5 bits (32 minors).
- 13 block Previously used for the XT disk (/dev/xdN)
+ 13 block Previously used for the XT disk (/dev/xdN)
Deleted in kernel v3.9.
- 14 char Open Sound System (OSS)
+ 14 char Open Sound System (OSS)
0 = /dev/mixer Mixer control
1 = /dev/sequencer Audio sequencer
2 = /dev/midi00 First MIDI port
34 = /dev/midi02 Third MIDI port
50 = /dev/midi03 Fourth MIDI port
- 14 block
+ 14 block
- 15 char Joystick
+ 15 char Joystick
0 = /dev/js0 First analog joystick
1 = /dev/js1 Second analog joystick
...
128 = /dev/djs0 First digital joystick
129 = /dev/djs1 Second digital joystick
...
- 15 block Sony CDU-31A/CDU-33A CD-ROM
+ 15 block Sony CDU-31A/CDU-33A CD-ROM
0 = /dev/sonycd Sony CDU-31a CD-ROM
- 16 char Non-SCSI scanners
+ 16 char Non-SCSI scanners
0 = /dev/gs4500 Genius 4500 handheld scanner
- 16 block GoldStar CD-ROM
+ 16 block GoldStar CD-ROM
0 = /dev/gscd GoldStar CD-ROM
- 17 char OBSOLETE (was Chase serial card)
+ 17 char OBSOLETE (was Chase serial card)
0 = /dev/ttyH0 First Chase port
1 = /dev/ttyH1 Second Chase port
...
- 17 block Optics Storage CD-ROM
+ 17 block Optics Storage CD-ROM
0 = /dev/optcd Optics Storage CD-ROM
- 18 char OBSOLETE (was Chase serial card - alternate devices)
+ 18 char OBSOLETE (was Chase serial card - alternate devices)
0 = /dev/cuh0 Callout device for ttyH0
1 = /dev/cuh1 Callout device for ttyH1
...
- 18 block Sanyo CD-ROM
+ 18 block Sanyo CD-ROM
0 = /dev/sjcd Sanyo CD-ROM
- 19 char Cyclades serial card
+ 19 char Cyclades serial card
0 = /dev/ttyC0 First Cyclades port
...
31 = /dev/ttyC31 32nd Cyclades port
- 19 block "Double" compressed disk
+ 19 block "Double" compressed disk
0 = /dev/double0 First compressed disk
...
7 = /dev/double7 Eighth compressed disk
See the Double documentation for the meaning of the
mirror devices.
- 20 char Cyclades serial card - alternate devices
+ 20 char Cyclades serial card - alternate devices
0 = /dev/cub0 Callout device for ttyC0
...
31 = /dev/cub31 Callout device for ttyC31
- 20 block Hitachi CD-ROM (under development)
+ 20 block Hitachi CD-ROM (under development)
0 = /dev/hitcd Hitachi CD-ROM
- 21 char Generic SCSI access
+ 21 char Generic SCSI access
0 = /dev/sg0 First generic SCSI device
1 = /dev/sg1 Second generic SCSI device
...
the system and is counter to standard Linux
device-naming practice.
- 21 block Acorn MFM hard drive interface
+ 21 block Acorn MFM hard drive interface
0 = /dev/mfma First MFM drive whole disk
64 = /dev/mfmb Second MFM drive whole disk
Partitions are handled the same way as for IDE disks
(see major number 3).
- 22 char Digiboard serial card
+ 22 char Digiboard serial card
0 = /dev/ttyD0 First Digiboard port
1 = /dev/ttyD1 Second Digiboard port
...
- 22 block Second IDE hard disk/CD-ROM interface
+ 22 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
+ 23 char Digiboard serial card - alternate devices
0 = /dev/cud0 Callout device for ttyD0
1 = /dev/cud1 Callout device for ttyD1
...
- 23 block Mitsumi proprietary CD-ROM
+ 23 block Mitsumi proprietary CD-ROM
0 = /dev/mcd Mitsumi CD-ROM
- 24 char Stallion serial card
+ 24 char Stallion serial card
0 = /dev/ttyE0 Stallion port 0 card 0
1 = /dev/ttyE1 Stallion port 1 card 0
...
192 = /dev/ttyE192 Stallion port 0 card 3
193 = /dev/ttyE193 Stallion port 1 card 3
...
- 24 block Sony CDU-535 CD-ROM
+ 24 block Sony CDU-535 CD-ROM
0 = /dev/cdu535 Sony CDU-535 CD-ROM
- 25 char Stallion serial card - alternate devices
+ 25 char Stallion serial card - alternate devices
0 = /dev/cue0 Callout device for ttyE0
1 = /dev/cue1 Callout device for ttyE1
...
192 = /dev/cue192 Callout device for ttyE192
193 = /dev/cue193 Callout device for ttyE193
...
- 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 25 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
+ 26 char
- 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 26 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
+ 27 char QIC-117 tape
0 = /dev/qft0 Unit 0, rewind-on-close
1 = /dev/qft1 Unit 1, rewind-on-close
2 = /dev/qft2 Unit 2, rewind-on-close
38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
- 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 27 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
+ 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
- 28 char Atari SLM ACSI laser printer (68k/Atari)
+ 28 char Atari SLM ACSI laser printer (68k/Atari)
0 = /dev/slm0 First SLM laser printer
1 = /dev/slm1 Second SLM laser printer
...
- 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
+ 28 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
- 28 block ACSI disk (68k/Atari)
+ 28 block ACSI disk (68k/Atari)
0 = /dev/ada First ACSI disk whole disk
16 = /dev/adb Second ACSI disk whole disk
32 = /dev/adc Third ACSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15, like SCSI.
- 29 char Universal frame buffer
+ 29 char Universal frame buffer
0 = /dev/fb0 First frame buffer
1 = /dev/fb1 Second frame buffer
...
31 = /dev/fb31 32nd frame buffer
- 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
+ 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
0 = /dev/aztcd Aztech CD-ROM
- 30 char iBCS-2 compatibility devices
+ 30 char iBCS-2 compatibility devices
0 = /dev/socksys Socket access
1 = /dev/spx SVR3 local X interface
32 = /dev/inet/ip Network access
/dev/nfsd -> /dev/socksys
/dev/X0R -> /dev/null (? apparently not required ?)
- 30 block Philips LMS CM-205 CD-ROM
+ 30 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
+ 31 char MPU-401 MIDI
0 = /dev/mpu401data MPU-401 data port
1 = /dev/mpu401stat MPU-401 status port
- 31 block ROM/flash memory card
+ 31 block ROM/flash memory card
0 = /dev/rom0 First ROM card (rw)
...
7 = /dev/rom7 Eighth ROM card (rw)
devices. The read-only devices (ro) support reading
only.
- 32 char Specialix serial card
+ 32 char Specialix serial card
0 = /dev/ttyX0 First Specialix port
1 = /dev/ttyX1 Second Specialix port
...
- 32 block Philips LMS CM-206 CD-ROM
+ 32 block Philips LMS CM-206 CD-ROM
0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
- 33 char Specialix serial card - alternate devices
+ 33 char Specialix serial card - alternate devices
0 = /dev/cux0 Callout device for ttyX0
1 = /dev/cux1 Callout device for ttyX1
...
- 33 block Third IDE hard disk/CD-ROM interface
+ 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)
Partitions are handled the same way as for the first
interface (see major number 3).
- 34 char Z8530 HDLC driver
+ 34 char Z8530 HDLC driver
0 = /dev/scc0 First Z8530, first port
1 = /dev/scc1 First Z8530, second port
2 = /dev/scc2 Second Z8530, first port
/dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
on.
- 34 block Fourth IDE hard disk/CD-ROM interface
+ 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)
Partitions are handled the same way as for the first
interface (see major number 3).
- 35 char tclmidi MIDI driver
+ 35 char tclmidi MIDI driver
0 = /dev/midi0 First MIDI port, kernel timed
1 = /dev/midi1 Second MIDI port, kernel timed
2 = /dev/midi2 Third MIDI port, kernel timed
130 = /dev/smpte2 Third MIDI port, SMPTE timed
131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
- 35 block Slow memory ramdisk
+ 35 block Slow memory ramdisk
0 = /dev/slram Slow memory ramdisk
- 36 char Netlink support
+ 36 char Netlink support
0 = /dev/route Routing, device updates, kernel to user
1 = /dev/skip enSKIP security cache control
3 = /dev/fwmonitor Firewall packet copies
...
31 = /dev/tap15 16th Ethertap device
- 36 block OBSOLETE (was MCA ESDI hard disk)
+ 36 block OBSOLETE (was MCA ESDI hard disk)
- 37 char IDE tape
+ 37 char IDE tape
0 = /dev/ht0 First IDE tape
1 = /dev/ht1 Second IDE tape
...
Currently, only one IDE tape drive is supported.
- 37 block Zorro II ramdisk
+ 37 block Zorro II ramdisk
0 = /dev/z2ram Zorro II ramdisk
- 38 char Myricom PCI Myrinet board
+ 38 char Myricom PCI Myrinet board
0 = /dev/mlanai0 First Myrinet board
1 = /dev/mlanai1 Second Myrinet board
...
and "user level packet I/O." This board is also
accessible as a standard networking "eth" device.
- 38 block OBSOLETE (was Linux/AP+)
+ 38 block OBSOLETE (was Linux/AP+)
- 39 char ML-16P experimental I/O board
+ 39 char ML-16P experimental I/O board
0 = /dev/ml16pa-a0 First card, first analog channel
1 = /dev/ml16pa-a1 First card, second analog channel
...
50 = /dev/ml16pb-c1 Second card, second counter/timer
51 = /dev/ml16pb-c2 Second card, third counter/timer
...
- 39 block
+ 39 block
- 40 char
+ 40 char
- 40 block
+ 40 block
- 41 char Yet Another Micro Monitor
+ 41 char Yet Another Micro Monitor
0 = /dev/yamm Yet Another Micro Monitor
- 41 block
+ 41 block
- 42 char Demo/sample use
+ 42 char Demo/sample use
- 42 block Demo/sample use
+ 42 block Demo/sample use
This number is intended for use in sample code, as
well as a general "example" device number. It
IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
- 43 char isdn4linux virtual modem
+ 43 char isdn4linux virtual modem
0 = /dev/ttyI0 First virtual modem
...
63 = /dev/ttyI63 64th virtual modem
- 43 block Network block devices
+ 43 block Network block devices
0 = /dev/nb0 First network block device
1 = /dev/nb1 Second network block device
...
to mounting filesystems over the net, swapping over
the net, implementing block device in userland etc.
- 44 char isdn4linux virtual modem - alternate devices
+ 44 char isdn4linux virtual modem - alternate devices
0 = /dev/cui0 Callout device for ttyI0
...
63 = /dev/cui63 Callout device for ttyI63
- 44 block Flash Translation Layer (FTL) filesystems
+ 44 block Flash Translation Layer (FTL) filesystems
0 = /dev/ftla FTL on first Memory Technology Device
16 = /dev/ftlb FTL on second Memory Technology Device
32 = /dev/ftlc FTL on third Memory Technology Device
disks (see major number 3) except that the partition
limit is 15 rather than 63 per disk (same as SCSI.)
- 45 char isdn4linux ISDN BRI driver
+ 45 char isdn4linux ISDN BRI driver
0 = /dev/isdn0 First virtual B channel raw data
...
63 = /dev/isdn63 64th virtual B channel raw data
255 = /dev/isdninfo ISDN monitor interface
- 45 block Parallel port IDE disk devices
+ 45 block Parallel port IDE disk devices
0 = /dev/pda First parallel port IDE disk
16 = /dev/pdb Second parallel port IDE disk
32 = /dev/pdc Third parallel port IDE disk
disks (see major number 3) except that the partition
limit is 15 rather than 63 per disk.
- 46 char Comtrol Rocketport serial card
+ 46 char Comtrol Rocketport serial card
0 = /dev/ttyR0 First Rocketport port
1 = /dev/ttyR1 Second Rocketport port
...
- 46 block Parallel port ATAPI CD-ROM devices
+ 46 block Parallel port ATAPI CD-ROM devices
0 = /dev/pcd0 First parallel port ATAPI CD-ROM
1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
- 47 char Comtrol Rocketport serial card - alternate devices
+ 47 char Comtrol Rocketport serial card - alternate devices
0 = /dev/cur0 Callout device for ttyR0
1 = /dev/cur1 Callout device for ttyR1
...
- 47 block Parallel port ATAPI disk devices
+ 47 block Parallel port ATAPI disk devices
0 = /dev/pf0 First parallel port ATAPI disk
1 = /dev/pf1 Second parallel port ATAPI disk
2 = /dev/pf2 Third parallel port ATAPI disk
This driver is intended for floppy disks and similar
devices and hence does not support partitioning.
- 48 char SDL RISCom serial card
+ 48 char SDL RISCom serial card
0 = /dev/ttyL0 First RISCom port
1 = /dev/ttyL1 Second RISCom port
...
- 48 block Mylex DAC960 PCI RAID controller; first controller
+ 48 block Mylex DAC960 PCI RAID controller; first controller
0 = /dev/rd/c0d0 First disk, whole disk
8 = /dev/rd/c0d1 Second disk, whole disk
...
...
7 = /dev/rd/c?d?p7 Seventh partition
- 49 char SDL RISCom serial card - alternate devices
+ 49 char SDL RISCom serial card - alternate devices
0 = /dev/cul0 Callout device for ttyL0
1 = /dev/cul1 Callout device for ttyL1
...
- 49 block Mylex DAC960 PCI RAID controller; second controller
+ 49 block Mylex DAC960 PCI RAID controller; second controller
0 = /dev/rd/c1d0 First disk, whole disk
8 = /dev/rd/c1d1 Second disk, whole disk
...
Partitions are handled as for major 48.
- 50 char Reserved for GLINT
+ 50 char Reserved for GLINT
- 50 block Mylex DAC960 PCI RAID controller; third controller
+ 50 block Mylex DAC960 PCI RAID controller; third controller
0 = /dev/rd/c2d0 First disk, whole disk
8 = /dev/rd/c2d1 Second disk, whole disk
...
248 = /dev/rd/c2d31 32nd disk, whole disk
- 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
+ 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
0 = /dev/bc0 First Baycom radio modem
1 = /dev/bc1 Second Baycom radio modem
...
- 51 block Mylex DAC960 PCI RAID controller; fourth controller
+ 51 block Mylex DAC960 PCI RAID controller; fourth controller
0 = /dev/rd/c3d0 First disk, whole disk
8 = /dev/rd/c3d1 Second disk, whole disk
...
Partitions are handled as for major 48.
- 52 char Spellcaster DataComm/BRI ISDN card
+ 52 char Spellcaster DataComm/BRI ISDN card
0 = /dev/dcbri0 First DataComm card
1 = /dev/dcbri1 Second DataComm card
2 = /dev/dcbri2 Third DataComm card
3 = /dev/dcbri3 Fourth DataComm card
- 52 block Mylex DAC960 PCI RAID controller; fifth controller
+ 52 block Mylex DAC960 PCI RAID controller; fifth controller
0 = /dev/rd/c4d0 First disk, whole disk
8 = /dev/rd/c4d1 Second disk, whole disk
...
Partitions are handled as for major 48.
- 53 char BDM interface for remote debugging MC683xx microcontrollers
+ 53 char BDM interface for remote debugging MC683xx microcontrollers
0 = /dev/pd_bdm0 PD BDM interface on lp0
1 = /dev/pd_bdm1 PD BDM interface on lp1
2 = /dev/pd_bdm2 PD BDM interface on lp2
Domain Interface and ICD is the commercial interface
by P&E.
- 53 block Mylex DAC960 PCI RAID controller; sixth controller
+ 53 block Mylex DAC960 PCI RAID controller; sixth controller
0 = /dev/rd/c5d0 First disk, whole disk
8 = /dev/rd/c5d1 Second disk, whole disk
...
Partitions are handled as for major 48.
- 54 char Electrocardiognosis Holter serial card
+ 54 char Electrocardiognosis Holter serial card
0 = /dev/holter0 First Holter port
1 = /dev/holter1 Second Holter port
2 = /dev/holter2 Third Holter port
<mseritan@ottonel.pub.ro> to transfer data from Holter
24-hour heart monitoring equipment.
- 54 block Mylex DAC960 PCI RAID controller; seventh controller
+ 54 block Mylex DAC960 PCI RAID controller; seventh controller
0 = /dev/rd/c6d0 First disk, whole disk
8 = /dev/rd/c6d1 Second disk, whole disk
...
Partitions are handled as for major 48.
- 55 char DSP56001 digital signal processor
+ 55 char DSP56001 digital signal processor
0 = /dev/dsp56k First DSP56001
- 55 block Mylex DAC960 PCI RAID controller; eighth controller
+ 55 block Mylex DAC960 PCI RAID controller; eighth controller
0 = /dev/rd/c7d0 First disk, whole disk
8 = /dev/rd/c7d1 Second disk, whole disk
...
Partitions are handled as for major 48.
- 56 char Apple Desktop Bus
+ 56 char Apple Desktop Bus
0 = /dev/adb ADB bus control
Additional devices will be added to this number, all
starting with /dev/adb.
- 56 block Fifth IDE hard disk/CD-ROM interface
+ 56 block Fifth IDE hard disk/CD-ROM interface
0 = /dev/hdi Master: whole disk (or CD-ROM)
64 = /dev/hdj Slave: whole disk (or CD-ROM)
Partitions are handled the same way as for the first
interface (see major number 3).
- 57 char Hayes ESP serial card
+ 57 char Hayes ESP serial card
0 = /dev/ttyP0 First ESP port
1 = /dev/ttyP1 Second ESP port
...
- 57 block Sixth IDE hard disk/CD-ROM interface
+ 57 block Sixth IDE hard disk/CD-ROM interface
0 = /dev/hdk Master: whole disk (or CD-ROM)
64 = /dev/hdl Slave: whole disk (or CD-ROM)
Partitions are handled the same way as for the first
interface (see major number 3).
- 58 char Hayes ESP serial card - alternate devices
+ 58 char Hayes ESP serial card - alternate devices
0 = /dev/cup0 Callout device for ttyP0
1 = /dev/cup1 Callout device for ttyP1
...
- 58 block Reserved for logical volume manager
+ 58 block Reserved for logical volume manager
- 59 char sf firewall package
+ 59 char sf firewall package
0 = /dev/firewall Communication with sf kernel module
- 59 block Generic PDA filesystem device
+ 59 block Generic PDA filesystem device
0 = /dev/pda0 First PDA device
1 = /dev/pda1 Second PDA device
...
NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
- 60-63 char LOCAL/EXPERIMENTAL USE
+ 60-63 char LOCAL/EXPERIMENTAL USE
- 60-63 block LOCAL/EXPERIMENTAL USE
+ 60-63 block LOCAL/EXPERIMENTAL USE
Allocated for local/experimental use. For devices not
assigned official numbers, these ranges should be
used in order to avoid conflicting with future assignments.
- 64 char ENskip kernel encryption package
+ 64 char ENskip kernel encryption package
0 = /dev/enskip Communication with ENskip kernel module
- 64 block Scramdisk/DriveCrypt encrypted devices
+ 64 block Scramdisk/DriveCrypt encrypted devices
0 = /dev/scramdisk/master Master node for ioctls
1 = /dev/scramdisk/1 First encrypted device
2 = /dev/scramdisk/2 Second encrypted device
Requested by: andy@scramdisklinux.org
- 65 char Sundance "plink" Transputer boards (obsolete, unused)
+ 65 char Sundance "plink" Transputer boards (obsolete, unused)
0 = /dev/plink0 First plink device
1 = /dev/plink1 Second plink device
2 = /dev/plink2 Third plink device
This is a commercial driver; contact James Howes
<jth@prosig.demon.co.uk> for information.
- 65 block SCSI disk devices (16-31)
+ 65 block SCSI disk devices (16-31)
0 = /dev/sdq 17th SCSI disk whole disk
16 = /dev/sdr 18th SCSI disk whole disk
32 = /dev/sds 19th SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 66 char YARC PowerPC PCI coprocessor card
+ 66 char YARC PowerPC PCI coprocessor card
0 = /dev/yppcpci0 First YARC card
1 = /dev/yppcpci1 Second YARC card
...
- 66 block SCSI disk devices (32-47)
+ 66 block SCSI disk devices (32-47)
0 = /dev/sdag 33th SCSI disk whole disk
16 = /dev/sdah 34th SCSI disk whole disk
32 = /dev/sdai 35th SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 67 char Coda network file system
+ 67 char Coda network file system
0 = /dev/cfs0 Coda cache manager
See http://www.coda.cs.cmu.edu for information about Coda.
- 67 block SCSI disk devices (48-63)
+ 67 block SCSI disk devices (48-63)
0 = /dev/sdaw 49th SCSI disk whole disk
16 = /dev/sdax 50th SCSI disk whole disk
32 = /dev/sday 51st SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 68 char CAPI 2.0 interface
+ 68 char CAPI 2.0 interface
0 = /dev/capi20 Control device
1 = /dev/capi20.00 First CAPI 2.0 application
2 = /dev/capi20.01 Second CAPI 2.0 application
ISDN CAPI 2.0 driver for use with CAPI 2.0
applications; currently supports the AVM B1 card.
- 68 block SCSI disk devices (64-79)
+ 68 block SCSI disk devices (64-79)
0 = /dev/sdbm 65th SCSI disk whole disk
16 = /dev/sdbn 66th SCSI disk whole disk
32 = /dev/sdbo 67th SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 69 char MA16 numeric accelerator card
+ 69 char MA16 numeric accelerator card
0 = /dev/ma16 Board memory access
- 69 block SCSI disk devices (80-95)
+ 69 block SCSI disk devices (80-95)
0 = /dev/sdcc 81st SCSI disk whole disk
16 = /dev/sdcd 82nd SCSI disk whole disk
32 = /dev/sdce 83th SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 70 char SpellCaster Protocol Services Interface
+ 70 char SpellCaster Protocol Services Interface
0 = /dev/apscfg Configuration interface
1 = /dev/apsauth Authentication interface
2 = /dev/apslog Logging interface
65 = /dev/apsasync Async command interface
128 = /dev/apsmon Monitor interface
- 70 block SCSI disk devices (96-111)
+ 70 block SCSI disk devices (96-111)
0 = /dev/sdcs 97th SCSI disk whole disk
16 = /dev/sdct 98th SCSI disk whole disk
32 = /dev/sdcu 99th SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 71 char Computone IntelliPort II serial card
+ 71 char Computone IntelliPort II serial card
0 = /dev/ttyF0 IntelliPort II board 0, port 0
1 = /dev/ttyF1 IntelliPort II board 0, port 1
...
...
255 = /dev/ttyF255 IntelliPort II board 3, port 63
- 71 block SCSI disk devices (112-127)
+ 71 block SCSI disk devices (112-127)
0 = /dev/sddi 113th SCSI disk whole disk
16 = /dev/sddj 114th SCSI disk whole disk
32 = /dev/sddk 115th SCSI disk whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 72 char Computone IntelliPort II serial card - alternate devices
+ 72 char Computone IntelliPort II serial card - alternate devices
0 = /dev/cuf0 Callout device for ttyF0
1 = /dev/cuf1 Callout device for ttyF1
...
...
255 = /dev/cuf255 Callout device for ttyF255
- 72 block Compaq Intelligent Drive Array, first controller
+ 72 block Compaq Intelligent Drive Array, first controller
0 = /dev/ida/c0d0 First logical drive whole disk
16 = /dev/ida/c0d1 Second logical drive whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
- 73 char Computone IntelliPort II serial card - control devices
+ 73 char Computone IntelliPort II serial card - control devices
0 = /dev/ip2ipl0 Loadware device for board 0
1 = /dev/ip2stat0 Status device for board 0
4 = /dev/ip2ipl1 Loadware device for board 1
12 = /dev/ip2ipl3 Loadware device for board 3
13 = /dev/ip2stat3 Status device for board 3
- 73 block Compaq Intelligent Drive Array, second controller
+ 73 block Compaq Intelligent Drive Array, second controller
0 = /dev/ida/c1d0 First logical drive whole disk
16 = /dev/ida/c1d1 Second logical drive whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
- 74 char SCI bridge
+ 74 char SCI bridge
0 = /dev/SCI/0 SCI device 0
1 = /dev/SCI/1 SCI device 1
...
Currently for Dolphin Interconnect Solutions' PCI-SCI
bridge.
- 74 block Compaq Intelligent Drive Array, third controller
+ 74 block Compaq Intelligent Drive Array, third controller
0 = /dev/ida/c2d0 First logical drive whole disk
16 = /dev/ida/c2d1 Second logical drive whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
- 75 char Specialix IO8+ serial card
+ 75 char Specialix IO8+ serial card
0 = /dev/ttyW0 First IO8+ port, first card
1 = /dev/ttyW1 Second IO8+ port, first card
...
8 = /dev/ttyW8 First IO8+ port, second card
...
- 75 block Compaq Intelligent Drive Array, fourth controller
+ 75 block Compaq Intelligent Drive Array, fourth controller
0 = /dev/ida/c3d0 First logical drive whole disk
16 = /dev/ida/c3d1 Second logical drive whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
- 76 char Specialix IO8+ serial card - alternate devices
+ 76 char Specialix IO8+ serial card - alternate devices
0 = /dev/cuw0 Callout device for ttyW0
1 = /dev/cuw1 Callout device for ttyW1
...
8 = /dev/cuw8 Callout device for ttyW8
...
- 76 block Compaq Intelligent Drive Array, fifth controller
+ 76 block Compaq Intelligent Drive Array, fifth controller
0 = /dev/ida/c4d0 First logical drive whole disk
16 = /dev/ida/c4d1 Second logical drive whole disk
...
partitions is 15.
- 77 char ComScire Quantum Noise Generator
+ 77 char ComScire Quantum Noise Generator
0 = /dev/qng ComScire Quantum Noise Generator
- 77 block Compaq Intelligent Drive Array, sixth controller
+ 77 block Compaq Intelligent Drive Array, sixth controller
0 = /dev/ida/c5d0 First logical drive whole disk
16 = /dev/ida/c5d1 Second logical drive whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
- 78 char PAM Software's multimodem boards
+ 78 char PAM Software's multimodem boards
0 = /dev/ttyM0 First PAM modem
1 = /dev/ttyM1 Second PAM modem
...
- 78 block Compaq Intelligent Drive Array, seventh controller
+ 78 block Compaq Intelligent Drive Array, seventh controller
0 = /dev/ida/c6d0 First logical drive whole disk
16 = /dev/ida/c6d1 Second logical drive whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
- 79 char PAM Software's multimodem boards - alternate devices
+ 79 char PAM Software's multimodem boards - alternate devices
0 = /dev/cum0 Callout device for ttyM0
1 = /dev/cum1 Callout device for ttyM1
...
- 79 block Compaq Intelligent Drive Array, eighth controller
+ 79 block Compaq Intelligent Drive Array, eighth controller
0 = /dev/ida/c7d0 First logical drive whole disk
16 = /dev/ida/c7d1 Second logical drive whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
- 80 char Photometrics AT200 CCD camera
+ 80 char Photometrics AT200 CCD camera
0 = /dev/at200 Photometrics AT200 CCD camera
- 80 block I2O hard disk
+ 80 block I2O hard disk
0 = /dev/i2o/hda First I2O hard disk, whole disk
16 = /dev/i2o/hdb Second I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 81 char video4linux
+ 81 char video4linux
0 = /dev/video0 Video capture/overlay device
...
63 = /dev/video63 Video capture/overlay device
CONFIG_VIDEO_FIXED_MINOR_RANGES (default n)
configuration option is set.
- 81 block I2O hard disk
+ 81 block I2O hard disk
0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 82 char WiNRADiO communications receiver card
+ 82 char WiNRADiO communications receiver card
0 = /dev/winradio0 First WiNRADiO card
1 = /dev/winradio1 Second WiNRADiO card
...
The driver and documentation may be obtained from
http://www.winradio.com/
- 82 block I2O hard disk
+ 82 block I2O hard disk
0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 83 char Matrox mga_vid video driver
- 0 = /dev/mga_vid0 1st video card
+ 83 char Matrox mga_vid video driver
+ 0 = /dev/mga_vid0 1st video card
1 = /dev/mga_vid1 2nd video card
2 = /dev/mga_vid2 3rd video card
...
- 15 = /dev/mga_vid15 16th video card
+ 15 = /dev/mga_vid15 16th video card
- 83 block I2O hard disk
+ 83 block I2O hard disk
0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 84 char Ikon 1011[57] Versatec Greensheet Interface
+ 84 char Ikon 1011[57] Versatec Greensheet Interface
0 = /dev/ihcp0 First Greensheet port
1 = /dev/ihcp1 Second Greensheet port
- 84 block I2O hard disk
+ 84 block I2O hard disk
0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 85 char Linux/SGI shared memory input queue
+ 85 char Linux/SGI shared memory input queue
0 = /dev/shmiq Master shared input queue
1 = /dev/qcntl0 First device pushed
2 = /dev/qcntl1 Second device pushed
...
- 85 block I2O hard disk
+ 85 block I2O hard disk
0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 86 char SCSI media changer
+ 86 char SCSI media changer
0 = /dev/sch0 First SCSI media changer
1 = /dev/sch1 Second SCSI media changer
...
- 86 block I2O hard disk
+ 86 block I2O hard disk
0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 87 char Sony Control-A1 stereo control bus
+ 87 char Sony Control-A1 stereo control bus
0 = /dev/controla0 First device on chain
1 = /dev/controla1 Second device on chain
...
- 87 block I2O hard disk
+ 87 block I2O hard disk
0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 88 char COMX synchronous serial card
+ 88 char COMX synchronous serial card
0 = /dev/comx0 COMX channel 0
1 = /dev/comx1 COMX channel 1
...
- 88 block Seventh IDE hard disk/CD-ROM interface
+ 88 block Seventh IDE hard disk/CD-ROM interface
0 = /dev/hdm Master: whole disk (or CD-ROM)
64 = /dev/hdn Slave: whole disk (or CD-ROM)
Partitions are handled the same way as for the first
interface (see major number 3).
- 89 char I2C bus interface
+ 89 char I2C bus interface
0 = /dev/i2c-0 First I2C adapter
1 = /dev/i2c-1 Second I2C adapter
...
- 89 block Eighth IDE hard disk/CD-ROM interface
+ 89 block Eighth IDE hard disk/CD-ROM interface
0 = /dev/hdo Master: whole disk (or CD-ROM)
64 = /dev/hdp Slave: whole disk (or CD-ROM)
Partitions are handled the same way as for the first
interface (see major number 3).
- 90 char Memory Technology Device (RAM, ROM, Flash)
+ 90 char Memory Technology Device (RAM, ROM, Flash)
0 = /dev/mtd0 First MTD (rw)
1 = /dev/mtdr0 First MTD (ro)
...
30 = /dev/mtd15 16th MTD (rw)
31 = /dev/mtdr15 16th MTD (ro)
- 90 block Ninth IDE hard disk/CD-ROM interface
+ 90 block Ninth IDE hard disk/CD-ROM interface
0 = /dev/hdq Master: whole disk (or CD-ROM)
64 = /dev/hdr Slave: whole disk (or CD-ROM)
Partitions are handled the same way as for the first
interface (see major number 3).
- 91 char CAN-Bus devices
+ 91 char CAN-Bus devices
0 = /dev/can0 First CAN-Bus controller
1 = /dev/can1 Second CAN-Bus controller
...
- 91 block Tenth IDE hard disk/CD-ROM interface
+ 91 block Tenth IDE hard disk/CD-ROM interface
0 = /dev/hds Master: whole disk (or CD-ROM)
64 = /dev/hdt Slave: whole disk (or CD-ROM)
Partitions are handled the same way as for the first
interface (see major number 3).
- 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
+ 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
- 92 block PPDD encrypted disk driver
+ 92 block PPDD encrypted disk driver
0 = /dev/ppdd0 First encrypted disk
1 = /dev/ppdd1 Second encrypted disk
...
disks (see major number 3) except that the limit on
partitions is 15.
- 93 char
+ 93 char
- 93 block NAND Flash Translation Layer filesystem
+ 93 block NAND Flash Translation Layer filesystem
0 = /dev/nftla First NFTL layer
16 = /dev/nftlb Second NFTL layer
...
240 = /dev/nftlp 16th NTFL layer
- 94 char
+ 94 char
- 94 block IBM S/390 DASD block storage
- 0 = /dev/dasda First DASD device, major
- 1 = /dev/dasda1 First DASD device, block 1
- 2 = /dev/dasda2 First DASD device, block 2
- 3 = /dev/dasda3 First DASD device, block 3
- 4 = /dev/dasdb Second DASD device, major
- 5 = /dev/dasdb1 Second DASD device, block 1
- 6 = /dev/dasdb2 Second DASD device, block 2
- 7 = /dev/dasdb3 Second DASD device, block 3
+ 94 block IBM S/390 DASD block storage
+ 0 = /dev/dasda First DASD device, major
+ 1 = /dev/dasda1 First DASD device, block 1
+ 2 = /dev/dasda2 First DASD device, block 2
+ 3 = /dev/dasda3 First DASD device, block 3
+ 4 = /dev/dasdb Second DASD device, major
+ 5 = /dev/dasdb1 Second DASD device, block 1
+ 6 = /dev/dasdb2 Second DASD device, block 2
+ 7 = /dev/dasdb3 Second DASD device, block 3
...
- 95 char IP filter
+ 95 char IP filter
0 = /dev/ipl Filter control device/log file
1 = /dev/ipnat NAT control device/log file
2 = /dev/ipstate State information log file
3 = /dev/ipauth Authentication control device/log file
...
- 96 char Parallel port ATAPI tape devices
+ 96 char Parallel port ATAPI tape devices
0 = /dev/pt0 First parallel port ATAPI tape
1 = /dev/pt1 Second parallel port ATAPI tape
...
129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
...
- 96 block Inverse NAND Flash Translation Layer
+ 96 block Inverse NAND Flash Translation Layer
0 = /dev/inftla First INFTL layer
16 = /dev/inftlb Second INFTL layer
...
240 = /dev/inftlp 16th INTFL layer
- 97 char Parallel port generic ATAPI interface
+ 97 char Parallel port generic ATAPI interface
0 = /dev/pg0 First parallel port ATAPI device
1 = /dev/pg1 Second parallel port ATAPI device
2 = /dev/pg2 Third parallel port ATAPI device
These devices support the same API as the generic SCSI
devices.
- 98 char Control and Measurement Device (comedi)
+ 98 char Control and Measurement Device (comedi)
0 = /dev/comedi0 First comedi device
1 = /dev/comedi1 Second comedi device
...
See http://stm.lbl.gov/comedi.
- 98 block User-mode virtual block device
+ 98 block User-mode virtual block device
0 = /dev/ubda First user-mode block device
16 = /dev/udbb Second user-mode block device
...
This device is used by the user-mode virtual kernel port.
- 99 char Raw parallel ports
+ 99 char Raw parallel ports
0 = /dev/parport0 First parallel port
1 = /dev/parport1 Second parallel port
...
- 99 block JavaStation flash disk
+ 99 block JavaStation flash disk
0 = /dev/jsfd JavaStation flash disk
-100 char Telephony for Linux
+ 100 char Telephony for Linux
0 = /dev/phone0 First telephony device
1 = /dev/phone1 Second telephony device
...
-101 char Motorola DSP 56xxx board
+ 101 char Motorola DSP 56xxx board
0 = /dev/mdspstat Status information
1 = /dev/mdsp1 First DSP board I/O controls
...
16 = /dev/mdsp16 16th DSP board I/O controls
-101 block AMI HyperDisk RAID controller
+ 101 block AMI HyperDisk RAID controller
0 = /dev/amiraid/ar0 First array whole disk
16 = /dev/amiraid/ar1 Second array whole disk
...
...
15 = /dev/amiraid/ar?p15 15th partition
-102 char
+ 102 char
-102 block Compressed block device
+ 102 block Compressed block device
0 = /dev/cbd/a First compressed block device, whole device
16 = /dev/cbd/b Second compressed block device, whole device
...
disks (see major number 3) except that the limit on
partitions is 15.
-103 char Arla network file system
+ 103 char Arla network file system
0 = /dev/nnpfs0 First NNPFS device
1 = /dev/nnpfs1 Second NNPFS device
write to <arla-drinkers@stacken.kth.se> or see
http://www.stacken.kth.se/project/arla/
-103 block Audit device
+ 103 block Audit device
0 = /dev/audit Audit device
-104 char Flash BIOS support
+ 104 char Flash BIOS support
-104 block Compaq Next Generation Drive Array, first controller
+ 104 block Compaq Next Generation Drive Array, first controller
0 = /dev/cciss/c0d0 First logical drive, whole disk
16 = /dev/cciss/c0d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-105 char Comtrol VS-1000 serial controller
+ 105 char Comtrol VS-1000 serial controller
0 = /dev/ttyV0 First VS-1000 port
1 = /dev/ttyV1 Second VS-1000 port
...
-105 block Compaq Next Generation Drive Array, second controller
+ 105 block Compaq Next Generation Drive Array, second controller
0 = /dev/cciss/c1d0 First logical drive, whole disk
16 = /dev/cciss/c1d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-106 char Comtrol VS-1000 serial controller - alternate devices
+ 106 char Comtrol VS-1000 serial controller - alternate devices
0 = /dev/cuv0 First VS-1000 port
1 = /dev/cuv1 Second VS-1000 port
...
-106 block Compaq Next Generation Drive Array, third controller
+ 106 block Compaq Next Generation Drive Array, third controller
0 = /dev/cciss/c2d0 First logical drive, whole disk
16 = /dev/cciss/c2d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-107 char 3Dfx Voodoo Graphics device
+ 107 char 3Dfx Voodoo Graphics device
0 = /dev/3dfx Primary 3Dfx graphics device
-107 block Compaq Next Generation Drive Array, fourth controller
+ 107 block Compaq Next Generation Drive Array, fourth controller
0 = /dev/cciss/c3d0 First logical drive, whole disk
16 = /dev/cciss/c3d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-108 char Device independent PPP interface
+ 108 char Device independent PPP interface
0 = /dev/ppp Device independent PPP interface
-108 block Compaq Next Generation Drive Array, fifth controller
+ 108 block Compaq Next Generation Drive Array, fifth controller
0 = /dev/cciss/c4d0 First logical drive, whole disk
16 = /dev/cciss/c4d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-109 char Reserved for logical volume manager
+ 109 char Reserved for logical volume manager
-109 block Compaq Next Generation Drive Array, sixth controller
+ 109 block Compaq Next Generation Drive Array, sixth controller
0 = /dev/cciss/c5d0 First logical drive, whole disk
16 = /dev/cciss/c5d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-110 char miroMEDIA Surround board
+ 110 char miroMEDIA Surround board
0 = /dev/srnd0 First miroMEDIA Surround board
1 = /dev/srnd1 Second miroMEDIA Surround board
...
-110 block Compaq Next Generation Drive Array, seventh controller
+ 110 block Compaq Next Generation Drive Array, seventh controller
0 = /dev/cciss/c6d0 First logical drive, whole disk
16 = /dev/cciss/c6d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-111 char
+ 111 char
-111 block Compaq Next Generation Drive Array, eighth controller
+ 111 block Compaq Next Generation Drive Array, eighth controller
0 = /dev/cciss/c7d0 First logical drive, whole disk
16 = /dev/cciss/c7d1 Second logical drive, whole disk
...
DAC960 (see major number 48) except that the limit on
partitions is 15.
-112 char ISI serial card
+ 112 char ISI serial card
0 = /dev/ttyM0 First ISI port
1 = /dev/ttyM1 Second ISI port
...
There is currently a device-naming conflict between
these and PAM multimodems (major 78).
-112 block IBM iSeries virtual disk
+ 112 block IBM iSeries virtual disk
0 = /dev/iseries/vda First virtual disk, whole disk
8 = /dev/iseries/vdb Second virtual disk, whole disk
...
disks (see major number 3) except that the limit on
partitions is 7.
-113 char ISI serial card - alternate devices
+ 113 char ISI serial card - alternate devices
0 = /dev/cum0 Callout device for ttyM0
1 = /dev/cum1 Callout device for ttyM1
...
-113 block IBM iSeries virtual CD-ROM
+ 113 block IBM iSeries virtual CD-ROM
0 = /dev/iseries/vcda First virtual CD-ROM
1 = /dev/iseries/vcdb Second virtual CD-ROM
...
-114 char Picture Elements ISE board
+ 114 char Picture Elements ISE board
0 = /dev/ise0 First ISE board
1 = /dev/ise1 Second ISE board
...
I/O access to the board, the /dev/isex0 nodes command
nodes used to control the board.
-114 block IDE BIOS powered software RAID interfaces such as the
- Promise Fastrak
+ 114 block IDE BIOS powered software RAID interfaces such as the
+ Promise Fastrak
- 0 = /dev/ataraid/d0
- 1 = /dev/ataraid/d0p1
- 2 = /dev/ataraid/d0p2
- ...
- 16 = /dev/ataraid/d1
- 17 = /dev/ataraid/d1p1
- 18 = /dev/ataraid/d1p2
- ...
- 255 = /dev/ataraid/d15p15
+ 0 = /dev/ataraid/d0
+ 1 = /dev/ataraid/d0p1
+ 2 = /dev/ataraid/d0p2
+ ...
+ 16 = /dev/ataraid/d1
+ 17 = /dev/ataraid/d1p1
+ 18 = /dev/ataraid/d1p2
+ ...
+ 255 = /dev/ataraid/d15p15
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-115 char TI link cable devices (115 was formerly the console driver speaker)
+ 115 char TI link cable devices (115 was formerly the console driver speaker)
0 = /dev/tipar0 Parallel cable on first parallel port
...
7 = /dev/tipar7 Parallel cable on seventh parallel port
...
47 = /dev/tiusb31 32nd USB cable
-115 block NetWare (NWFS) Devices (0-255)
+ 115 block NetWare (NWFS) Devices (0-255)
- The NWFS (NetWare) devices are used to present a
- collection of NetWare Mirror Groups or NetWare
- Partitions as a logical storage segment for
- use in mounting NetWare volumes. A maximum of
- 256 NetWare volumes can be supported in a single
- machine.
+ The NWFS (NetWare) devices are used to present a
+ collection of NetWare Mirror Groups or NetWare
+ Partitions as a logical storage segment for
+ use in mounting NetWare volumes. A maximum of
+ 256 NetWare volumes can be supported in a single
+ machine.
- http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
+ http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
- 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
- 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
- 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
- ...
- 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
+ 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
+ 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
+ 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
+ ...
+ 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
-116 char Advanced Linux Sound Driver (ALSA)
+ 116 char Advanced Linux Sound Driver (ALSA)
-116 block MicroMemory battery backed RAM adapter (NVRAM)
- Supports 16 boards, 15 partitions each.
- Requested by neilb at cse.unsw.edu.au.
+ 116 block MicroMemory battery backed RAM adapter (NVRAM)
+ Supports 16 boards, 15 partitions each.
+ Requested by neilb at cse.unsw.edu.au.
0 = /dev/umem/d0 Whole of first board
1 = /dev/umem/d0p1 First partition of first board
...
255= /dev/umem/d15p15 15th partition of 16th board.
-117 char COSA/SRP synchronous serial card
+ 117 char COSA/SRP synchronous serial card
0 = /dev/cosa0c0 1st board, 1st channel
1 = /dev/cosa0c1 1st board, 2nd channel
...
17 = /dev/cosa1c1 2nd board, 2nd channel
...
-117 block Enterprise Volume Management System (EVMS)
+ 117 block Enterprise Volume Management System (EVMS)
- The EVMS driver uses a layered, plug-in model to provide
- unparalleled flexibility and extensibility in managing
- storage. This allows for easy expansion or customization
- of various levels of volume management. Requested by
- Mark Peloquin (peloquin at us.ibm.com).
+ The EVMS driver uses a layered, plug-in model to provide
+ unparalleled flexibility and extensibility in managing
+ storage. This allows for easy expansion or customization
+ of various levels of volume management. Requested by
+ Mark Peloquin (peloquin at us.ibm.com).
- Note: EVMS populates and manages all the devnodes in
- /dev/evms.
+ Note: EVMS populates and manages all the devnodes in
+ /dev/evms.
- http://sf.net/projects/evms
+ http://sf.net/projects/evms
- 0 = /dev/evms/block_device EVMS block device
- 1 = /dev/evms/legacyname1 First EVMS legacy device
- 2 = /dev/evms/legacyname2 Second EVMS legacy device
- ...
- Both ranges can grow (down or up) until they meet.
- ...
- 254 = /dev/evms/EVMSname2 Second EVMS native device
- 255 = /dev/evms/EVMSname1 First EVMS native device
+ 0 = /dev/evms/block_device EVMS block device
+ 1 = /dev/evms/legacyname1 First EVMS legacy device
+ 2 = /dev/evms/legacyname2 Second EVMS legacy device
+ ...
+ Both ranges can grow (down or up) until they meet.
+ ...
+ 254 = /dev/evms/EVMSname2 Second EVMS native device
+ 255 = /dev/evms/EVMSname1 First EVMS native device
- Note: legacyname(s) are derived from the normal legacy
- device names. For example, /dev/hda5 would become
- /dev/evms/hda5.
+ Note: legacyname(s) are derived from the normal legacy
+ device names. For example, /dev/hda5 would become
+ /dev/evms/hda5.
-118 char IBM Cryptographic Accelerator
+ 118 char IBM Cryptographic Accelerator
0 = /dev/ica Virtual interface to all IBM Crypto Accelerators
1 = /dev/ica0 IBMCA Device 0
2 = /dev/ica1 IBMCA Device 1
...
-119 char VMware virtual network control
+ 119 char VMware virtual network control
0 = /dev/vnet0 1st virtual network
1 = /dev/vnet1 2nd virtual network
...
-120-127 char LOCAL/EXPERIMENTAL USE
+ 120-127 char LOCAL/EXPERIMENTAL USE
-120-127 block LOCAL/EXPERIMENTAL USE
+ 120-127 block LOCAL/EXPERIMENTAL USE
Allocated for local/experimental use. For devices not
assigned official numbers, these ranges should be
used in order to avoid conflicting with future assignments.
-128-135 char Unix98 PTY masters
+ 128-135 char Unix98 PTY masters
These devices should not have corresponding device
nodes; instead they should be accessed through the
/dev/ptmx cloning interface.
-128 block SCSI disk devices (128-143)
- 0 = /dev/sddy 129th SCSI disk whole disk
- 16 = /dev/sddz 130th SCSI disk whole disk
- 32 = /dev/sdea 131th SCSI disk whole disk
- ...
- 240 = /dev/sden 144th SCSI disk whole disk
+ 128 block SCSI disk devices (128-143)
+ 0 = /dev/sddy 129th SCSI disk whole disk
+ 16 = /dev/sddz 130th SCSI disk whole disk
+ 32 = /dev/sdea 131th SCSI disk whole disk
+ ...
+ 240 = /dev/sden 144th SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-129 block SCSI disk devices (144-159)
- 0 = /dev/sdeo 145th SCSI disk whole disk
- 16 = /dev/sdep 146th SCSI disk whole disk
- 32 = /dev/sdeq 147th SCSI disk whole disk
- ...
- 240 = /dev/sdfd 160th SCSI disk whole disk
+ 129 block SCSI disk devices (144-159)
+ 0 = /dev/sdeo 145th SCSI disk whole disk
+ 16 = /dev/sdep 146th SCSI disk whole disk
+ 32 = /dev/sdeq 147th SCSI disk whole disk
+ ...
+ 240 = /dev/sdfd 160th SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-130 char (Misc devices)
+ 130 char (Misc devices)
-130 block SCSI disk devices (160-175)
- 0 = /dev/sdfe 161st SCSI disk whole disk
- 16 = /dev/sdff 162nd SCSI disk whole disk
- 32 = /dev/sdfg 163rd SCSI disk whole disk
- ...
- 240 = /dev/sdft 176th SCSI disk whole disk
+ 130 block SCSI disk devices (160-175)
+ 0 = /dev/sdfe 161st SCSI disk whole disk
+ 16 = /dev/sdff 162nd SCSI disk whole disk
+ 32 = /dev/sdfg 163rd SCSI disk whole disk
+ ...
+ 240 = /dev/sdft 176th SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-131 block SCSI disk devices (176-191)
- 0 = /dev/sdfu 177th SCSI disk whole disk
- 16 = /dev/sdfv 178th SCSI disk whole disk
- 32 = /dev/sdfw 179th SCSI disk whole disk
- ...
- 240 = /dev/sdgj 192nd SCSI disk whole disk
+ 131 block SCSI disk devices (176-191)
+ 0 = /dev/sdfu 177th SCSI disk whole disk
+ 16 = /dev/sdfv 178th SCSI disk whole disk
+ 32 = /dev/sdfw 179th SCSI disk whole disk
+ ...
+ 240 = /dev/sdgj 192nd SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-132 block SCSI disk devices (192-207)
- 0 = /dev/sdgk 193rd SCSI disk whole disk
- 16 = /dev/sdgl 194th SCSI disk whole disk
- 32 = /dev/sdgm 195th SCSI disk whole disk
- ...
- 240 = /dev/sdgz 208th SCSI disk whole disk
+ 132 block SCSI disk devices (192-207)
+ 0 = /dev/sdgk 193rd SCSI disk whole disk
+ 16 = /dev/sdgl 194th SCSI disk whole disk
+ 32 = /dev/sdgm 195th SCSI disk whole disk
+ ...
+ 240 = /dev/sdgz 208th SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-133 block SCSI disk devices (208-223)
- 0 = /dev/sdha 209th SCSI disk whole disk
- 16 = /dev/sdhb 210th SCSI disk whole disk
- 32 = /dev/sdhc 211th SCSI disk whole disk
- ...
- 240 = /dev/sdhp 224th SCSI disk whole disk
+ 133 block SCSI disk devices (208-223)
+ 0 = /dev/sdha 209th SCSI disk whole disk
+ 16 = /dev/sdhb 210th SCSI disk whole disk
+ 32 = /dev/sdhc 211th SCSI disk whole disk
+ ...
+ 240 = /dev/sdhp 224th SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-134 block SCSI disk devices (224-239)
- 0 = /dev/sdhq 225th SCSI disk whole disk
- 16 = /dev/sdhr 226th SCSI disk whole disk
- 32 = /dev/sdhs 227th SCSI disk whole disk
- ...
- 240 = /dev/sdif 240th SCSI disk whole disk
+ 134 block SCSI disk devices (224-239)
+ 0 = /dev/sdhq 225th SCSI disk whole disk
+ 16 = /dev/sdhr 226th SCSI disk whole disk
+ 32 = /dev/sdhs 227th SCSI disk whole disk
+ ...
+ 240 = /dev/sdif 240th SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-135 block SCSI disk devices (240-255)
- 0 = /dev/sdig 241st SCSI disk whole disk
- 16 = /dev/sdih 242nd SCSI disk whole disk
- 32 = /dev/sdih 243rd SCSI disk whole disk
- ...
- 240 = /dev/sdiv 256th SCSI disk whole disk
+ 135 block SCSI disk devices (240-255)
+ 0 = /dev/sdig 241st SCSI disk whole disk
+ 16 = /dev/sdih 242nd SCSI disk whole disk
+ 32 = /dev/sdih 243rd SCSI disk whole disk
+ ...
+ 240 = /dev/sdiv 256th SCSI disk whole disk
Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.
-136-143 char Unix98 PTY slaves
+ 136-143 char Unix98 PTY slaves
0 = /dev/pts/0 First Unix98 pseudo-TTY
1 = /dev/pts/1 Second Unix98 pseudo-TTY
...
*most* distributions the appropriate options are
"mode=0620,gid=<gid of the "tty" group>".)
-136 block Mylex DAC960 PCI RAID controller; ninth controller
+ 136 block Mylex DAC960 PCI RAID controller; ninth controller
0 = /dev/rd/c8d0 First disk, whole disk
8 = /dev/rd/c8d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-137 block Mylex DAC960 PCI RAID controller; tenth controller
+ 137 block Mylex DAC960 PCI RAID controller; tenth controller
0 = /dev/rd/c9d0 First disk, whole disk
8 = /dev/rd/c9d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-138 block Mylex DAC960 PCI RAID controller; eleventh controller
+ 138 block Mylex DAC960 PCI RAID controller; eleventh controller
0 = /dev/rd/c10d0 First disk, whole disk
8 = /dev/rd/c10d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-139 block Mylex DAC960 PCI RAID controller; twelfth controller
+ 139 block Mylex DAC960 PCI RAID controller; twelfth controller
0 = /dev/rd/c11d0 First disk, whole disk
8 = /dev/rd/c11d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-140 block Mylex DAC960 PCI RAID controller; thirteenth controller
+ 140 block Mylex DAC960 PCI RAID controller; thirteenth controller
0 = /dev/rd/c12d0 First disk, whole disk
8 = /dev/rd/c12d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-141 block Mylex DAC960 PCI RAID controller; fourteenth controller
+ 141 block Mylex DAC960 PCI RAID controller; fourteenth controller
0 = /dev/rd/c13d0 First disk, whole disk
8 = /dev/rd/c13d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-142 block Mylex DAC960 PCI RAID controller; fifteenth controller
+ 142 block Mylex DAC960 PCI RAID controller; fifteenth controller
0 = /dev/rd/c14d0 First disk, whole disk
8 = /dev/rd/c14d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-143 block Mylex DAC960 PCI RAID controller; sixteenth controller
+ 143 block Mylex DAC960 PCI RAID controller; sixteenth controller
0 = /dev/rd/c15d0 First disk, whole disk
8 = /dev/rd/c15d1 Second disk, whole disk
...
Partitions are handled as for major 48.
-144 char Encapsulated PPP
+ 144 char Encapsulated PPP
0 = /dev/pppox0 First PPP over Ethernet
...
63 = /dev/pppox63 64th PPP over Ethernet
The SST 5136-DN DeviceNet interface driver has been
relocated to major 183 due to an unfortunate conflict.
-144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
+ 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
0 = mounted device 256
255 = mounted device 511
-145 char SAM9407-based soundcard
+ 145 char SAM9407-based soundcard
0 = /dev/sam0_mixer
1 = /dev/sam0_sequencer
2 = /dev/sam0_midi00
addons, which are sam9407 specific. OSS can be
operated simultaneously, taking care of the codec.
-145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
+ 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
0 = mounted device 512
255 = mounted device 767
-146 char SYSTRAM SCRAMNet mirrored-memory network
+ 146 char SYSTRAM SCRAMNet mirrored-memory network
0 = /dev/scramnet0 First SCRAMNet device
1 = /dev/scramnet1 Second SCRAMNet device
...
-146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
+ 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
0 = mounted device 768
255 = mounted device 1023
-147 char Aureal Semiconductor Vortex Audio device
+ 147 char Aureal Semiconductor Vortex Audio device
0 = /dev/aureal0 First Aureal Vortex
1 = /dev/aureal1 Second Aureal Vortex
...
-147 block Distributed Replicated Block Device (DRBD)
+ 147 block Distributed Replicated Block Device (DRBD)
0 = /dev/drbd0 First DRBD device
1 = /dev/drbd1 Second DRBD device
...
-148 char Technology Concepts serial card
+ 148 char Technology Concepts serial card
0 = /dev/ttyT0 First TCL port
1 = /dev/ttyT1 Second TCL port
...
-149 char Technology Concepts serial card - alternate devices
+ 149 char Technology Concepts serial card - alternate devices
0 = /dev/cut0 Callout device for ttyT0
1 = /dev/cut0 Callout device for ttyT1
...
-150 char Real-Time Linux FIFOs
+ 150 char Real-Time Linux FIFOs
0 = /dev/rtf0 First RTLinux FIFO
1 = /dev/rtf1 Second RTLinux FIFO
...
-151 char DPT I2O SmartRaid V controller
+ 151 char DPT I2O SmartRaid V controller
0 = /dev/dpti0 First DPT I2O adapter
1 = /dev/dpti1 Second DPT I2O adapter
...
-152 char EtherDrive Control Device
+ 152 char EtherDrive Control Device
0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive
1 = /dev/etherd/err Monitor errors
2 = /dev/etherd/raw Raw AoE packet monitor
-152 block EtherDrive Block Devices
+ 152 block EtherDrive Block Devices
0 = /dev/etherd/0 EtherDrive 0
...
255 = /dev/etherd/255 EtherDrive 255
-153 char SPI Bus Interface (sometimes referred to as MicroWire)
+ 153 char SPI Bus Interface (sometimes referred to as MicroWire)
0 = /dev/spi0 First SPI device on the bus
1 = /dev/spi1 Second SPI device on the bus
...
15 = /dev/spi15 Sixteenth SPI device on the bus
-153 block Enhanced Metadisk RAID (EMD) storage units
+ 153 block Enhanced Metadisk RAID (EMD) storage units
0 = /dev/emd/0 First unit
1 = /dev/emd/0p1 Partition 1 on First unit
2 = /dev/emd/0p2 Partition 2 on First unit
disks (see major number 3) except that the limit on
partitions is 15.
-154 char Specialix RIO serial card
+ 154 char Specialix RIO serial card
0 = /dev/ttySR0 First RIO port
...
255 = /dev/ttySR255 256th RIO port
-155 char Specialix RIO serial card - alternate devices
+ 155 char Specialix RIO serial card - alternate devices
0 = /dev/cusr0 Callout device for ttySR0
...
255 = /dev/cusr255 Callout device for ttySR255
-156 char Specialix RIO serial card
+ 156 char Specialix RIO serial card
0 = /dev/ttySR256 257th RIO port
...
255 = /dev/ttySR511 512th RIO port
-157 char Specialix RIO serial card - alternate devices
+ 157 char Specialix RIO serial card - alternate devices
0 = /dev/cusr256 Callout device for ttySR256
...
255 = /dev/cusr511 Callout device for ttySR511
-158 char Dialogic GammaLink fax driver
+ 158 char Dialogic GammaLink fax driver
0 = /dev/gfax0 GammaLink channel 0
1 = /dev/gfax1 GammaLink channel 1
...
-159 char RESERVED
+ 159 char RESERVED
-159 block RESERVED
+ 159 block RESERVED
-160 char General Purpose Instrument Bus (GPIB)
+ 160 char General Purpose Instrument Bus (GPIB)
0 = /dev/gpib0 First GPIB bus
1 = /dev/gpib1 Second GPIB bus
...
-160 block Carmel 8-port SATA Disks on First Controller
+ 160 block Carmel 8-port SATA Disks on First Controller
0 = /dev/carmel/0 SATA disk 0 whole disk
1 = /dev/carmel/0p1 SATA disk 0 partition 1
...
disks (see major number 3) except that the limit on
partitions is 31.
-161 char IrCOMM devices (IrDA serial/parallel emulation)
+ 161 char IrCOMM devices (IrDA serial/parallel emulation)
0 = /dev/ircomm0 First IrCOMM device
1 = /dev/ircomm1 Second IrCOMM device
...
17 = /dev/irlpt1 Second IrLPT device
...
-161 block Carmel 8-port SATA Disks on Second Controller
+ 161 block Carmel 8-port SATA Disks on Second Controller
0 = /dev/carmel/8 SATA disk 8 whole disk
1 = /dev/carmel/8p1 SATA disk 8 partition 1
...
disks (see major number 3) except that the limit on
partitions is 31.
-162 char Raw block device interface
+ 162 char Raw block device interface
0 = /dev/rawctl Raw I/O control device
1 = /dev/raw/raw1 First raw I/O device
2 = /dev/raw/raw2 Second raw I/O device
...
- max minor number of raw device is set by kernel config
- MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
+ max minor number of raw device is set by kernel config
+ MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
-163 char
+ 163 char
-164 char Chase Research AT/PCI-Fast serial card
+ 164 char Chase Research AT/PCI-Fast serial card
0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
...
15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
...
63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
-165 char Chase Research AT/PCI-Fast serial card - alternate devices
+ 165 char Chase Research AT/PCI-Fast serial card - alternate devices
0 = /dev/cuch0 Callout device for ttyCH0
...
63 = /dev/cuch63 Callout device for ttyCH63
-166 char ACM USB modems
+ 166 char ACM USB modems
0 = /dev/ttyACM0 First ACM modem
1 = /dev/ttyACM1 Second ACM modem
...
-167 char ACM USB modems - alternate devices
+ 167 char ACM USB modems - alternate devices
0 = /dev/cuacm0 Callout device for ttyACM0
1 = /dev/cuacm1 Callout device for ttyACM1
...
-168 char Eracom CSA7000 PCI encryption adaptor
+ 168 char Eracom CSA7000 PCI encryption adaptor
0 = /dev/ecsa0 First CSA7000
1 = /dev/ecsa1 Second CSA7000
...
-169 char Eracom CSA8000 PCI encryption adaptor
+ 169 char Eracom CSA8000 PCI encryption adaptor
0 = /dev/ecsa8-0 First CSA8000
1 = /dev/ecsa8-1 Second CSA8000
...
-170 char AMI MegaRAC remote access controller
+ 170 char AMI MegaRAC remote access controller
0 = /dev/megarac0 First MegaRAC card
1 = /dev/megarac1 Second MegaRAC card
...
-171 char Reserved for IEEE 1394 (Firewire)
+ 171 char Reserved for IEEE 1394 (Firewire)
-172 char Moxa Intellio serial card
+ 172 char Moxa Intellio serial card
0 = /dev/ttyMX0 First Moxa port
1 = /dev/ttyMX1 Second Moxa port
...
127 = /dev/ttyMX127 128th Moxa port
128 = /dev/moxactl Moxa control port
-173 char Moxa Intellio serial card - alternate devices
+ 173 char Moxa Intellio serial card - alternate devices
0 = /dev/cumx0 Callout device for ttyMX0
1 = /dev/cumx1 Callout device for ttyMX1
...
127 = /dev/cumx127 Callout device for ttyMX127
-174 char SmartIO serial card
+ 174 char SmartIO serial card
0 = /dev/ttySI0 First SmartIO port
1 = /dev/ttySI1 Second SmartIO port
...
-175 char SmartIO serial card - alternate devices
+ 175 char SmartIO serial card - alternate devices
0 = /dev/cusi0 Callout device for ttySI0
1 = /dev/cusi1 Callout device for ttySI1
...
-176 char nCipher nFast PCI crypto accelerator
+ 176 char nCipher nFast PCI crypto accelerator
0 = /dev/nfastpci0 First nFast PCI device
1 = /dev/nfastpci1 First nFast PCI device
...
-177 char TI PCILynx memory spaces
+ 177 char TI PCILynx memory spaces
0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
...
15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
...
47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
-178 char Giganet cLAN1xxx virtual interface adapter
+ 178 char Giganet cLAN1xxx virtual interface adapter
0 = /dev/clanvi0 First cLAN adapter
1 = /dev/clanvi1 Second cLAN adapter
...
-179 block MMC block devices
+ 179 block MMC block devices
0 = /dev/mmcblk0 First SD/MMC card
1 = /dev/mmcblk0p1 First partition on first MMC card
8 = /dev/mmcblk1 Second SD/MMC card
bump the offset between each card to be the configured
value instead of the default 8.
-179 char CCube DVXChip-based PCI products
+ 179 char CCube DVXChip-based PCI products
0 = /dev/dvxirq0 First DVX device
1 = /dev/dvxirq1 Second DVX device
...
-180 char USB devices
+ 180 char USB devices
0 = /dev/usb/lp0 First USB printer
...
15 = /dev/usb/lp15 16th USB printer
...
209 = /dev/usb/yurex16 16th USB Yurex device
-180 block USB block devices
+ 180 block USB block devices
0 = /dev/uba First USB block device
8 = /dev/ubb Second USB block device
16 = /dev/ubc Third USB block device
- ...
+ ...
-181 char Conrad Electronic parallel port radio clocks
+ 181 char Conrad Electronic parallel port radio clocks
0 = /dev/pcfclock0 First Conrad radio clock
1 = /dev/pcfclock1 Second Conrad radio clock
...
-182 char Picture Elements THR2 binarizer
+ 182 char Picture Elements THR2 binarizer
0 = /dev/pethr0 First THR2 board
1 = /dev/pethr1 Second THR2 board
...
-183 char SST 5136-DN DeviceNet interface
+ 183 char SST 5136-DN DeviceNet interface
0 = /dev/ss5136dn0 First DeviceNet interface
1 = /dev/ss5136dn1 Second DeviceNet interface
...
This device used to be assigned to major number 144.
It had to be moved due to an unfortunate conflict.
-184 char Picture Elements' video simulator/sender
+ 184 char Picture Elements' video simulator/sender
0 = /dev/pevss0 First sender board
1 = /dev/pevss1 Second sender board
...
-185 char InterMezzo high availability file system
+ 185 char InterMezzo high availability file system
0 = /dev/intermezzo0 First cache manager
1 = /dev/intermezzo1 Second cache manager
...
See http://web.archive.org/web/20080115195241/
http://inter-mezzo.org/index.html
-186 char Object-based storage control device
+ 186 char Object-based storage control device
0 = /dev/obd0 First obd control device
1 = /dev/obd1 Second obd control device
...
See ftp://ftp.lustre.org/pub/obd for code and information.
-187 char DESkey hardware encryption device
+ 187 char DESkey hardware encryption device
0 = /dev/deskey0 First DES key
1 = /dev/deskey1 Second DES key
...
-188 char USB serial converters
+ 188 char USB serial converters
0 = /dev/ttyUSB0 First USB serial converter
1 = /dev/ttyUSB1 Second USB serial converter
...
-189 char USB serial converters - alternate devices
+ 189 char USB serial converters - alternate devices
0 = /dev/cuusb0 Callout device for ttyUSB0
1 = /dev/cuusb1 Callout device for ttyUSB1
...
-190 char Kansas City tracker/tuner card
+ 190 char Kansas City tracker/tuner card
0 = /dev/kctt0 First KCT/T card
1 = /dev/kctt1 Second KCT/T card
...
-191 char Reserved for PCMCIA
+ 191 char Reserved for PCMCIA
-192 char Kernel profiling interface
+ 192 char Kernel profiling interface
0 = /dev/profile Profiling control device
1 = /dev/profile0 Profiling device for CPU 0
2 = /dev/profile1 Profiling device for CPU 1
...
-193 char Kernel event-tracing interface
+ 193 char Kernel event-tracing interface
0 = /dev/trace Tracing control device
1 = /dev/trace0 Tracing device for CPU 0
2 = /dev/trace1 Tracing device for CPU 1
...
-194 char linVideoStreams (LINVS)
+ 194 char linVideoStreams (LINVS)
0 = /dev/mvideo/status0 Video compression status
1 = /dev/mvideo/stream0 Video stream
2 = /dev/mvideo/frame0 Single compressed frame
240 = /dev/mvideo/status15 16th device
...
-195 char Nvidia graphics devices
+ 195 char Nvidia graphics devices
0 = /dev/nvidia0 First Nvidia card
1 = /dev/nvidia1 Second Nvidia card
...
255 = /dev/nvidiactl Nvidia card control device
-196 char Tormenta T1 card
+ 196 char Tormenta T1 card
0 = /dev/tor/0 Master control channel for all cards
1 = /dev/tor/1 First DS0
2 = /dev/tor/2 Second DS0
50 = /dev/tor/50 Second pseudo-channel
...
-197 char OpenTNF tracing facility
+ 197 char OpenTNF tracing facility
0 = /dev/tnf/t0 Trace 0 data extraction
1 = /dev/tnf/t1 Trace 1 data extraction
...
128 = /dev/tnf/status Tracing facility status
130 = /dev/tnf/trace Tracing device
-198 char Total Impact TPMP2 quad coprocessor PCI card
+ 198 char Total Impact TPMP2 quad coprocessor PCI card
0 = /dev/tpmp2/0 First card
1 = /dev/tpmp2/1 Second card
...
-199 char Veritas volume manager (VxVM) volumes
+ 199 char Veritas volume manager (VxVM) volumes
0 = /dev/vx/rdsk/*/* First volume
1 = /dev/vx/rdsk/*/* Second volume
...
-199 block Veritas volume manager (VxVM) volumes
+ 199 block Veritas volume manager (VxVM) volumes
0 = /dev/vx/dsk/*/* First volume
1 = /dev/vx/dsk/*/* Second volume
...
The namespace in these directories is maintained by
the user space VxVM software.
-200 char Veritas VxVM configuration interface
- 0 = /dev/vx/config Configuration access node
- 1 = /dev/vx/trace Volume i/o trace access node
- 2 = /dev/vx/iod Volume i/o daemon access node
- 3 = /dev/vx/info Volume information access node
- 4 = /dev/vx/task Volume tasks access node
- 5 = /dev/vx/taskmon Volume tasks monitor daemon
+ 200 char Veritas VxVM configuration interface
+ 0 = /dev/vx/config Configuration access node
+ 1 = /dev/vx/trace Volume i/o trace access node
+ 2 = /dev/vx/iod Volume i/o daemon access node
+ 3 = /dev/vx/info Volume information access node
+ 4 = /dev/vx/task Volume tasks access node
+ 5 = /dev/vx/taskmon Volume tasks monitor daemon
-201 char Veritas VxVM dynamic multipathing driver
+ 201 char Veritas VxVM dynamic multipathing driver
0 = /dev/vx/rdmp/* First multipath device
1 = /dev/vx/rdmp/* Second multipath device
...
-201 block Veritas VxVM dynamic multipathing driver
+ 201 block Veritas VxVM dynamic multipathing driver
0 = /dev/vx/dmp/* First multipath device
1 = /dev/vx/dmp/* Second multipath device
...
The namespace in these directories is maintained by
the user space VxVM software.
-202 char CPU model-specific registers
+ 202 char CPU model-specific registers
0 = /dev/cpu/0/msr MSRs on CPU 0
1 = /dev/cpu/1/msr MSRs on CPU 1
...
-202 block Xen Virtual Block Device
+ 202 block Xen Virtual Block Device
0 = /dev/xvda First Xen VBD whole disk
16 = /dev/xvdb Second Xen VBD whole disk
32 = /dev/xvdc Third Xen VBD whole disk
...
240 = /dev/xvdp Sixteenth Xen VBD whole disk
- Partitions are handled in the same way as for IDE
- disks (see major number 3) except that the limit on
- partitions is 15.
+ Partitions are handled in the same way as for IDE
+ disks (see major number 3) except that the limit on
+ partitions is 15.
-203 char CPU CPUID information
+ 203 char CPU CPUID information
0 = /dev/cpu/0/cpuid CPUID on CPU 0
1 = /dev/cpu/1/cpuid CPUID on CPU 1
...
-204 char Low-density serial ports
+ 204 char Low-density serial ports
0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
211 = /dev/ttyMAX2 MAX3100 serial port 2
212 = /dev/ttyMAX3 MAX3100 serial port 3
-205 char Low-density serial ports (alternate device)
+ 205 char Low-density serial ports (alternate device)
0 = /dev/culu0 Callout device for ttyLU0
1 = /dev/culu1 Callout device for ttyLU1
2 = /dev/culu2 Callout device for ttyLU2
82 = /dev/cuvr0 Callout device for ttyVR0
83 = /dev/cuvr1 Callout device for ttyVR1
-206 char OnStream SC-x0 tape devices
+ 206 char OnStream SC-x0 tape devices
0 = /dev/osst0 First OnStream SCSI tape, mode 0
1 = /dev/osst1 Second OnStream SCSI tape, mode 0
...
driver as well. The ADR-x0 drives are QIC-157
compliant and don't need osst.
-207 char Compaq ProLiant health feature indicate
+ 207 char Compaq ProLiant health feature indicate
0 = /dev/cpqhealth/cpqw Redirector interface
1 = /dev/cpqhealth/crom EISA CROM
2 = /dev/cpqhealth/cdt Data Table
10 = /dev/cpqhealth/cram CMOS interface
11 = /dev/cpqhealth/cpci PCI IRQ interface
-208 char User space serial ports
+ 208 char User space serial ports
0 = /dev/ttyU0 First user space serial port
1 = /dev/ttyU1 Second user space serial port
...
-209 char User space serial ports (alternate devices)
+ 209 char User space serial ports (alternate devices)
0 = /dev/cuu0 Callout device for ttyU0
1 = /dev/cuu1 Callout device for ttyU1
...
-210 char SBE, Inc. sync/async serial card
+ 210 char SBE, Inc. sync/async serial card
0 = /dev/sbei/wxcfg0 Configuration device for board 0
1 = /dev/sbei/dld0 Download device for board 0
2 = /dev/sbei/wan00 WAN device, port 0, board 0
Yes, each board is really spaced 10 (decimal) apart.
-211 char Addinum CPCI1500 digital I/O card
+ 211 char Addinum CPCI1500 digital I/O card
0 = /dev/addinum/cpci1500/0 First CPCI1500 card
1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
...
-212 char LinuxTV.org DVB driver subsystem
+ 212 char LinuxTV.org DVB driver subsystem
0 = /dev/dvb/adapter0/video0 first video decoder of first card
1 = /dev/dvb/adapter0/audio0 first audio decoder of first card
2 = /dev/dvb/adapter0/sec0 (obsolete/unused)
...
196 = /dev/dvb/adapter3/video0 first video decoder of fourth card
-216 char Bluetooth RFCOMM TTY devices
+ 216 char Bluetooth RFCOMM TTY devices
0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device
1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device
...
-217 char Bluetooth RFCOMM TTY devices (alternate devices)
+ 217 char Bluetooth RFCOMM TTY devices (alternate devices)
0 = /dev/curf0 Callout device for rfcomm0
1 = /dev/curf1 Callout device for rfcomm1
...
-218 char The Logical Company bus Unibus/Qbus adapters
+ 218 char The Logical Company bus Unibus/Qbus adapters
0 = /dev/logicalco/bci/0 First bus adapter
1 = /dev/logicalco/bci/1 First bus adapter
...
-219 char The Logical Company DCI-1300 digital I/O card
+ 219 char The Logical Company DCI-1300 digital I/O card
0 = /dev/logicalco/dci1300/0 First DCI-1300 card
1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
...
-220 char Myricom Myrinet "GM" board
+ 220 char Myricom Myrinet "GM" board
0 = /dev/myricom/gm0 First Myrinet GM board
1 = /dev/myricom/gmp0 First board "root access"
2 = /dev/myricom/gm1 Second Myrinet GM board
3 = /dev/myricom/gmp1 Second board "root access"
...
-221 char VME bus
+ 221 char VME bus
0 = /dev/bus/vme/m0 First master image
1 = /dev/bus/vme/m1 Second master image
2 = /dev/bus/vme/m2 Third master image
same interface. For interface documentation see
http://www.vmelinux.org/.
-224 char A2232 serial card
+ 224 char A2232 serial card
0 = /dev/ttyY0 First A2232 port
1 = /dev/ttyY1 Second A2232 port
...
-225 char A2232 serial card (alternate devices)
+ 225 char A2232 serial card (alternate devices)
0 = /dev/cuy0 Callout device for ttyY0
1 = /dev/cuy1 Callout device for ttyY1
...
-226 char Direct Rendering Infrastructure (DRI)
+ 226 char Direct Rendering Infrastructure (DRI)
0 = /dev/dri/card0 First graphics card
1 = /dev/dri/card1 Second graphics card
...
-227 char IBM 3270 terminal Unix tty access
+ 227 char IBM 3270 terminal Unix tty access
1 = /dev/3270/tty1 First 3270 terminal
2 = /dev/3270/tty2 Seconds 3270 terminal
...
-228 char IBM 3270 terminal block-mode access
+ 228 char IBM 3270 terminal block-mode access
0 = /dev/3270/tub Controlling interface
1 = /dev/3270/tub1 First 3270 terminal
2 = /dev/3270/tub2 Second 3270 terminal
...
-229 char IBM iSeries/pSeries virtual console
+ 229 char IBM iSeries/pSeries virtual console
0 = /dev/hvc0 First console port
1 = /dev/hvc1 Second console port
...
-230 char IBM iSeries virtual tape
+ 230 char IBM iSeries virtual tape
0 = /dev/iseries/vt0 First virtual tape, mode 0
1 = /dev/iseries/vt1 Second virtual tape, mode 0
...
ioctl()'s can be used to rewind the tape regardless of
the device used to access it.
-231 char InfiniBand
+ 231 char InfiniBand
0 = /dev/infiniband/umad0
1 = /dev/infiniband/umad1
...
...
159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device
-232 char Biometric Devices
+ 232 char Biometric Devices
0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device
1 = /dev/biometric/sensor0/iris first iris sensor on first device
2 = /dev/biometric/sensor0/retina first retina sensor on first device
20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device
...
-233 char PathScale InfiniPath interconnect
+ 233 char PathScale InfiniPath interconnect
0 = /dev/ipath Primary device for programs (any unit)
1 = /dev/ipath0 Access specifically to unit 0
2 = /dev/ipath1 Access specifically to unit 1
129 = /dev/ipath_sma Device used by Subnet Management Agent
130 = /dev/ipath_diag Device used by diagnostics programs
-234-254 char RESERVED FOR DYNAMIC ASSIGNMENT
+ 234-254 char RESERVED FOR DYNAMIC ASSIGNMENT
Character devices that request a dynamic allocation of major number will
take numbers starting from 254 and downward.
-240-254 block LOCAL/EXPERIMENTAL USE
+ 240-254 block LOCAL/EXPERIMENTAL USE
Allocated for local/experimental use. For devices not
assigned official numbers, these ranges should be
used in order to avoid conflicting with future assignments.
-255 char RESERVED
+ 255 char RESERVED
-255 block RESERVED
+ 255 block RESERVED
This major is reserved to assist the expansion to a
larger number space. No device nodes with this major
(This is probably not true anymore, but I'll leave it
for now /Torben)
----LARGE MAJORS!!!!!---
+ ---LARGE MAJORS!!!!!---
-256 char Equinox SST multi-port serial boards
+ 256 char Equinox SST multi-port serial boards
0 = /dev/ttyEQ0 First serial port on first Equinox SST board
127 = /dev/ttyEQ127 Last serial port on first Equinox SST board
128 = /dev/ttyEQ128 First serial port on second Equinox SST board
...
1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board
-256 block Resident Flash Disk Flash Translation Layer
+ 256 block Resident Flash Disk Flash Translation Layer
0 = /dev/rfda First RFD FTL layer
16 = /dev/rfdb Second RFD FTL layer
...
240 = /dev/rfdp 16th RFD FTL layer
-257 char Phoenix Technologies Cryptographic Services Driver
+ 257 char Phoenix Technologies Cryptographic Services Driver
0 = /dev/ptlsec Crypto Services Driver
-257 block SSFDC Flash Translation Layer filesystem
+ 257 block SSFDC Flash Translation Layer filesystem
0 = /dev/ssfdca First SSFDC layer
8 = /dev/ssfdcb Second SSFDC layer
16 = /dev/ssfdcc Third SSFDC layer
48 = /dev/ssfdcg 7th SSFDC layer
56 = /dev/ssfdch 8th SSFDC layer
-258 block ROM/Flash read-only translation layer
+ 258 block ROM/Flash read-only translation layer
0 = /dev/blockrom0 First ROM card's translation layer interface
1 = /dev/blockrom1 Second ROM card's translation layer interface
...
-259 block Block Extended Major
+ 259 block Block Extended Major
Used dynamically to hold additional partition minor
numbers and allow large numbers of partitions per device
-259 char FPGA configuration interfaces
+ 259 char FPGA configuration interfaces
0 = /dev/icap0 First Xilinx internal configuration
1 = /dev/icap1 Second Xilinx internal configuration
-260 char OSD (Object-based-device) SCSI Device
+ 260 char OSD (Object-based-device) SCSI Device
0 = /dev/osd0 First OSD Device
1 = /dev/osd1 Second OSD Device
...
255 = /dev/osd255 256th OSD Device
- **** ADDITIONAL /dev DIRECTORY ENTRIES
+
+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
classified as "hard" or "symbolic" depending on the preferred type of
link; if possible, the indicated type of link should be used.
-
- Compulsory links
+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
/dev/nfsd socksys symbolic Required by iBCS-2
/dev/X0R null symbolic Required by iBCS-2
+=============== =============== =============== ===============================
-Note: /dev/X0R is <letter X>-<digit 0>-<letter R>.
+Note: ``/dev/X0R`` is <letter X>-<digit 0>-<letter R>.
- Recommended links
+Recommended links
++++++++++++++++++
It is recommended that these links exist on all systems:
+
+=============== =============== =============== ===============================
/dev/core /proc/kcore symbolic Backward compatibility
/dev/ramdisk ram0 symbolic Backward compatibility
/dev/ftape qft0 symbolic Backward compatibility
/dev/radio radio0 symbolic Backward compatibility
/dev/i2o* /dev/i2o/* symbolic Backward compatibility
/dev/scd? sr? hard Alternate SCSI CD-ROM name
+=============== =============== =============== ===============================
- Locally defined links
+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
+``/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 should point to the appropriate primary TTY device
+exists, ``/dev/modem`` should point to the appropriate primary TTY device
(the use of the alternate callout devices is deprecated).
-For SCSI devices, /dev/tape and /dev/cdrom should point to the
-``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas
-/dev/cdwriter and /dev/scanner should point to the appropriate generic
+For SCSI devices, ``/dev/tape`` and ``/dev/cdrom`` should point to the
+*cooked* devices (``/dev/st*`` and ``/dev/sr*``, respectively), whereas
+``/dev/cdwriter`` and /dev/scanner should point to the appropriate generic
SCSI devices (/dev/sg*).
-/dev/mouse may point to a primary serial TTY device, a hardware mouse
-device, or a socket for a mouse driver program (e.g. /dev/gpmdata).
+``/dev/mouse`` may point to a primary serial TTY device, a hardware mouse
+device, or a socket for a mouse driver program (e.g. ``/dev/gpmdata``).
- Sockets and pipes
+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
/dev/gpmdata socket gpm mouse multiplexer
+=============== =============== ===============================================
- Mount points
+Mount points
+++++++++++++
The following names are reserved for mounting special filesystems
under /dev. These special filesystems provide kernel interfaces that
cannot be provided with standard device nodes.
+=============== =============== ===============================================
/dev/pts devpts PTY slave filesystem
/dev/shm tmpfs POSIX shared memory maintenance access
+=============== =============== ===============================================
- **** TERMINAL DEVICES
+Terminal devices
+----------------
Terminal, or TTY devices are a special class of character devices. A
terminal device is any device that could act as a controlling terminal
Linux-specific, some were inherited from other systems, and some
reflect Linux outgrowing a borrowed convention.
-A hash mark (#) in a device name is used here to indicate a decimal
+A hash mark (``#``) in a device name is used here to indicate a decimal
number without leading zeroes.
- Virtual consoles and the console device
+Virtual consoles and the console device
++++++++++++++++++++++++++++++++++++++++
Virtual consoles are full-screen terminal displays on the system video
-monitor. Virtual consoles are named /dev/tty#, with numbering
-starting at /dev/tty1; /dev/tty0 is the current virtual console.
-/dev/tty0 is the device that should be used to access the system video
+monitor. Virtual consoles are named ``/dev/tty#``, with numbering
+starting at ``/dev/tty1``; ``/dev/tty0`` is the current virtual console.
+``/dev/tty0`` is the device that should be used to access the system video
card on those architectures for which the frame buffer devices
-(/dev/fb*) are not applicable. Do not use /dev/console
+(``/dev/fb*``) are not applicable. Do not use ``/dev/console``
for this purpose.
-The console device, /dev/console, is the device to which system
+The console device, ``/dev/console``, is the device to which system
messages should be sent, and on which logins should be permitted in
-single-user mode. Starting with Linux 2.1.71, /dev/console is managed
+single-user mode. Starting with Linux 2.1.71, ``/dev/console`` is managed
by the kernel; for previous versions it should be a symbolic link to
-either /dev/tty0, a specific virtual console such as /dev/tty1, or to
-a serial port primary (tty*, not cu*) device, depending on the
+either ``/dev/tty0``, a specific virtual console such as ``/dev/tty1``, or to
+a serial port primary (``tty*``, not ``cu*``) device, depending on the
configuration of the system.
- Serial ports
+Serial ports
+++++++++++++
Serial ports are RS-232 serial ports and any device which simulates
one, either in hardware (such as internal modems) or in software (such
as the ISDN driver.) Under Linux, each serial ports has two device
names, the primary or callin device and the alternate or callout one.
Each kind of device is indicated by a different letter. For any
-letter X, the names of the devices are /dev/ttyX# and /dev/cux#,
-respectively; for historical reasons, /dev/ttyS# and /dev/ttyC#
-correspond to /dev/cua# and /dev/cub#. In the future, it should be
+letter X, the names of the devices are ``/dev/ttyX#`` and ``/dev/cux#``,
+respectively; for historical reasons, ``/dev/ttyS#`` and ``/dev/ttyC#``
+correspond to ``/dev/cua#`` and ``/dev/cub#``. In the future, it should be
expected that multiple letters will be used; all letters will be upper
-case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the
-"cu" device (e.g. /dev/cudp#).
+case for the "tty" device (e.g. ``/dev/ttyDP#``) and lower case for the
+"cu" device (e.g. ``/dev/cudp#``).
-The names /dev/ttyQ# and /dev/cuq# are reserved for local use.
+The names ``/dev/ttyQ#`` and ``/dev/cuq#`` are reserved for local use.
The alternate devices provide for kernel-based exclusion and somewhat
different defaults than the primary devices. Their main purpose is to
removed from a future version of Linux.
Arbitration of serial ports is provided by the use of lock files with
-the names /var/lock/LCK..ttyX#. The contents of the lock file should
+the names ``/var/lock/LCK..ttyX#``. The contents of the lock file should
be the PID of the locking process as an ASCII number.
It is common practice to install links such as /dev/modem
device. In order to avoid deadlocks, it is recommended that the locks
are acquired in the following order, and released in the reverse:
- 1. The symbolic link name, if any (/var/lock/LCK..modem)
- 2. The "tty" name (/var/lock/LCK..ttyS2)
- 3. The alternate device name (/var/lock/LCK..cua2)
+ 1. The symbolic link name, if any (``/var/lock/LCK..modem``)
+ 2. The "tty" name (``/var/lock/LCK..ttyS2``)
+ 3. The alternate device name (``/var/lock/LCK..cua2``)
In the case of nested symbolic links, the lock files should be
installed in the order the symlinks are resolved.
should take into account the possibility of being used on a non-serial
port TTY, for which no alternate device would exist.
- Pseudoterminals (PTYs)
+Pseudoterminals (PTYs)
+++++++++++++++++++++++
Pseudoterminals, or PTYs, are used to create login sessions or provide
other capabilities requiring a TTY line discipline (including SLIP or
PPP capability) to arbitrary data-generation processes. Each PTY has
-a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named
-/dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by
+a master side, named ``/dev/pty[p-za-e][0-9a-f]``, and a slave side, named
+``/dev/tty[p-za-e][0-9a-f]``. The kernel arbitrates the use of PTYs by
allowing each master side to be opened only once.
Once the master side has been opened, the corresponding slave device
Recent versions of the Linux kernels and GNU libc contain support for
the System V/Unix98 naming scheme for PTYs, which assigns a common
-device, /dev/ptmx, to all the masters (opening it will automatically
-give you a previously unassigned PTY) and a subdirectory, /dev/pts,
-for the slaves; the slaves are named with decimal integers (/dev/pts/#
+device, ``/dev/ptmx``, to all the masters (opening it will automatically
+give you a previously unassigned PTY) and a subdirectory, ``/dev/pts``,
+for the slaves; the slaves are named with decimal integers (``/dev/pts/#``
in our notation). This removes the problem of exhausting the
namespace and enables the kernel to automatically create the device
nodes for the slaves on demand using the "devpts" filesystem.
projects / linux.git / commitdiff