devices.txt

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		167 = /dev/specialix_sxctl Specialix serial control
		168 = /dev/tcldrv	Technology Concepts serial control
		169 = /dev/specialix_rioctl Specialix RIO serial control
		170 = /dev/smapi	IBM Thinkpad SMAPI
		171 = /dev/srripc	QNX4 API IPC manager
		172 = /dev/usemaclone	Semaphore clone device
		173 = /dev/ipmikcs	Intelligent Platform Management
		174 = /dev/uctrl	SPARCbook 3 microcontroller
		175 = /dev/agpgart	AGP Graphics Address Remapping Table
		176 = /dev/gtrsc	Gorgy Timing radio clock
		177 = /dev/cbm		Serial CBM bus
		178 = /dev/jsflash	JavaStation OS flash SIMM
		179 = /dev/xsvc		High-speed shared-mem/semaphore service
		180 = /dev/vrbuttons	Vr41xx button input device
		181 = /dev/toshiba	Toshiba laptop SMM support
		182 = /dev/perfctr	Performance-monitoring counters
		183 = /dev/intel_rng	Intel i8x0 random number generator
		184 = /dev/cpu/microcode CPU microcode update interface
		186 = /dev/atomicps	Atomic shapshot of process state data
		187 = /dev/irnet	IrNET device
		188 = /dev/smbusbios	SMBus BIOS
		189 = /dev/ussp_ctl	User space serial port control
		190 = /dev/crash	Mission Critical Linux crash dump facility
		191 = /dev/pcl181	<information missing>
		192 = /dev/nas_xbus	NAS xbus LCD/buttons access
		193 = /dev/d7s		SPARC 7-segment display
		194 = /dev/zkshim	Zero-Knowledge network shim control
		195 = /dev/elographics/e2201	Elographics touchscreen E271-2201
		198 = /dev/sexec	Signed executable interface
		199 = /dev/scanners/cuecat :CueCat barcode scanner
		200 = /dev/net/tun	TAP/TUN network device
		201 = /dev/button/gulpb	Transmeta GULP-B buttons
		204 = /dev/video/em8300		EM8300 DVD decoder control
		205 = /dev/video/em8300_mv	EM8300 DVD decoder video
		206 = /dev/video/em8300_ma	EM8300 DVD decoder audio
		207 = /dev/video/em8300_sp	EM8300 DVD decoder subpicture
		208 = /dev/compaq/cpqphpc	Compaq PCI Hot Plug Controller
		209 = /dev/compaq/cpqrid	Compaq Remote Insight Driver
		210 = /dev/impi/bt	IMPI coprocessor block transfer	
		211 = /dev/impi/smic	IMPI coprocessor stream interface
		212 = /dev/watchdogs/0	First watchdog device
		213 = /dev/watchdogs/1	Second watchdog device
		214 = /dev/watchdogs/2	Third watchdog device
		215 = /dev/watchdogs/3	Fourth watchdog device
		216 = /dev/fujitsu/apanel	Fujitsu/Siemens application panel
		217 = /dev/ni/natmotn		National Instruments Motion
		218 = /dev/kchuid	Inter-process chuid control
		219 = /dev/modems/mwave	MWave modem firmware upload
		220 = /dev/mptctl	Message passing technology (MPT) control
		221 = /dev/mvista/hssdsi	Montavista PICMG hot swap system driver
		222 = /dev/mvista/hasi		Montavista PICMG high availability
		240-255			Reserved for local use

 11 char	Raw keyboard device
		  0 = /dev/kbd		Raw keyboard device

		The raw keyboard device is used on Linux/SPARC only.

    block	SCSI CD-ROM devices
		  0 = /dev/sr0		First SCSI CD-ROM
		  1 = /dev/sr1		Second SCSI CD-ROM
		    ...

		The prefix /dev/scd instead of /dev/sr has been used
		as well, and might make more sense.

 12 char	QIC-02 tape
		  2 = /dev/ntpqic11	QIC-11, no rewind-on-close
		  3 = /dev/tpqic11	QIC-11, rewind-on-close
		  4 = /dev/ntpqic24	QIC-24, no rewind-on-close
		  5 = /dev/tpqic24	QIC-24, rewind-on-close
		  6 = /dev/ntpqic120	QIC-120, no rewind-on-close
		  7 = /dev/tpqic120	QIC-120, rewind-on-close
		  8 = /dev/ntpqic150	QIC-150, no rewind-on-close
		  9 = /dev/tpqic150	QIC-150, rewind-on-close

		The device names specified are proposed -- if there
		are "standard" names for these devices, please let me know.

    block	MSCDEX CD-ROM callback support {2.6}
		  0 = /dev/dos_cd0	First MSCDEX CD-ROM
		  1 = /dev/dos_cd1	Second MSCDEX CD-ROM
		    ...

 13 char	Input core
		  0 = /dev/input/js0	First joystick
		  1 = /dev/input/js1	Second joystick
		    ...
		 32 = /dev/input/mouse0	First mouse
		 33 = /dev/input/mouse1	Second mouse
		    ...
		 63 = /dev/input/mice	Unified mouse
		 64 = /dev/input/event0	First event queue
		 65 = /dev/input/event1	Second event queue
		    ...

		Each device type has 5 bits (32 minors).

    block	8-bit MFM/RLL/IDE controller
		  0 = /dev/xda		First XT disk whole disk
		 64 = /dev/xdb		Second XT disk whole disk

		Partitions are handled in the same way as IDE disks
		(see major number 3).

 14 char	Open Sound System (OSS)
		  0 = /dev/mixer	Mixer control
		  1 = /dev/sequencer	Audio sequencer
		  2 = /dev/midi00	First MIDI port
		  3 = /dev/dsp		Digital audio
		  4 = /dev/audio	Sun-compatible digital audio
		  6 = /dev/sndstat	Sound card status information {2.6}
		  7 = /dev/audioctl	SPARC audio control device
		  8 = /dev/sequencer2	Sequencer -- alternate device
		 16 = /dev/mixer1	Second soundcard mixer control
		 17 = /dev/patmgr0	Sequencer patch manager
		 18 = /dev/midi01	Second MIDI port
		 19 = /dev/dsp1		Second soundcard digital audio
		 20 = /dev/audio1	Second soundcard Sun digital audio
		 33 = /dev/patmgr1	Sequencer patch manager
		 34 = /dev/midi02	Third MIDI port
		 50 = /dev/midi03	Fourth MIDI port
    block	BIOS harddrive callback support {2.6}
		  0 = /dev/dos_hda	First BIOS harddrive whole disk
		 64 = /dev/dos_hdb	Second BIOS harddrive whole disk
		128 = /dev/dos_hdc	Third BIOS harddrive whole disk
		192 = /dev/dos_hdd	Fourth BIOS harddrive whole disk

		Partitions are handled in the same way as IDE disks
		(see major number 3).

 15 char	Joystick
		  0 = /dev/js0		First analog joystick
		  1 = /dev/js1		Second analog joystick
		    ...
		128 = /dev/djs0		First digital joystick
		129 = /dev/djs1		Second digital joystick
		    ...
    block	Sony CDU-31A/CDU-33A CD-ROM
		  0 = /dev/sonycd	Sony CDU-31a CD-ROM

 16 char	Non-SCSI scanners
		  0 = /dev/gs4500	Genius 4500 handheld scanner
    block	GoldStar CD-ROM
		  0 = /dev/gscd		GoldStar CD-ROM

 17 char	Chase serial card
		  0 = /dev/ttyH0	First Chase port
		  1 = /dev/ttyH1	Second Chase port
		    ...
    block	Optics Storage CD-ROM
		  0 = /dev/optcd	Optics Storage CD-ROM

 18 char	Chase serial card - alternate devices
		  0 = /dev/cuh0		Callout device for ttyH0
		  1 = /dev/cuh1		Callout device for ttyH1
		    ...
    block	Sanyo CD-ROM
		  0 = /dev/sjcd		Sanyo CD-ROM

 19 char	Cyclades serial card
		  0 = /dev/ttyC0	First Cyclades port
		    ...
		 31 = /dev/ttyC31	32nd Cyclades port
    block	"Double" compressed disk
		  0 = /dev/double0	First compressed disk
		    ...
		  7 = /dev/double7	Eighth compressed disk
		128 = /dev/cdouble0	Mirror of first compressed disk
		    ...
		135 = /dev/cdouble7	Mirror of eighth compressed disk

		See the Double documentation for the meaning of the
		mirror devices.

 20 char	Cyclades serial card - alternate devices
		  0 = /dev/cub0		Callout device for ttyC0
		    ...
		 31 = /dev/cub31	Callout device for ttyC31
    block	Hitachi CD-ROM (under development)
		  0 = /dev/hitcd	Hitachi CD-ROM

 21 char	Generic SCSI access
		  0 = /dev/sg0		First generic SCSI device
		  1 = /dev/sg1		Second generic SCSI device
		    ...

		Most distributions name these /dev/sga, /dev/sgb...;
		this sets an unnecessary limit of 26 SCSI devices in
		the system and is counter to standard Linux
		device-naming practice.

    block	Acorn MFM hard drive interface
		  0 = /dev/mfma		First MFM drive whole disk
		 64 = /dev/mfmb		Second MFM drive whole disk

		This device is used on the ARM-based Acorn RiscPC.
		Partitions are handled the same way as for IDE disks
		(see major number 3). 

 22 char	Digiboard serial card
		  0 = /dev/ttyD0	First Digiboard port
		  1 = /dev/ttyD1	Second Digiboard port
		    ...
    block	Second IDE hard disk/CD-ROM interface
		  0 = /dev/hdc		Master: whole disk (or CD-ROM)
		 64 = /dev/hdd		Slave: whole disk (or CD-ROM)
		
		Partitions are handled the same way as for the first
		interface (see major number 3).

 23 char	Digiboard serial card - alternate devices
		  0 = /dev/cud0		Callout device for ttyD0
		  1 = /dev/cud1		Callout device for ttyD1
		      ...
    block	Mitsumi proprietary CD-ROM
		  0 = /dev/mcd		Mitsumi CD-ROM

 24 char	Stallion serial card
		  0 = /dev/ttyE0	Stallion port 0 card 0
		  1 = /dev/ttyE1	Stallion port 1 card 0
		    ...
		 64 = /dev/ttyE64	Stallion port 0 card 1
		 65 = /dev/ttyE65	Stallion port 1 card 1
		      ...
		128 = /dev/ttyE128	Stallion port 0 card 2
		129 = /dev/ttyE129	Stallion port 1 card 2
		    ...
		192 = /dev/ttyE192	Stallion port 0 card 3
		193 = /dev/ttyE193	Stallion port 1 card 3
		    ...
    block	Sony CDU-535 CD-ROM
		  0 = /dev/cdu535	Sony CDU-535 CD-ROM

 25 char	Stallion serial card - alternate devices
		  0 = /dev/cue0		Callout device for ttyE0
		  1 = /dev/cue1		Callout device for ttyE1
		    ...
		 64 = /dev/cue64	Callout device for ttyE64
		 65 = /dev/cue65	Callout device for ttyE65
		    ...
		128 = /dev/cue128	Callout device for ttyE128
		129 = /dev/cue129	Callout device for ttyE129
		    ...
		192 = /dev/cue192	Callout device for ttyE192
		193 = /dev/cue193	Callout device for ttyE193
		      ...
    block	First Matsushita (Panasonic/SoundBlaster) CD-ROM
		  0 = /dev/sbpcd0	Panasonic CD-ROM controller 0 unit 0
		  1 = /dev/sbpcd1	Panasonic CD-ROM controller 0 unit 1
		  2 = /dev/sbpcd2	Panasonic CD-ROM controller 0 unit 2
		  3 = /dev/sbpcd3	Panasonic CD-ROM controller 0 unit 3

 26 char	Quanta WinVision frame grabber {2.6}
		  0 = /dev/wvisfgrab	Quanta WinVision frame grabber
    block	Second Matsushita (Panasonic/SoundBlaster) CD-ROM
		  0 = /dev/sbpcd4	Panasonic CD-ROM controller 1 unit 0
		  1 = /dev/sbpcd5	Panasonic CD-ROM controller 1 unit 1
		  2 = /dev/sbpcd6	Panasonic CD-ROM controller 1 unit 2
		  3 = /dev/sbpcd7	Panasonic CD-ROM controller 1 unit 3

 27 char	QIC-117 tape
		  0 = /dev/qft0		Unit 0, rewind-on-close
		  1 = /dev/qft1		Unit 1, rewind-on-close
		  2 = /dev/qft2		Unit 2, rewind-on-close
		  3 = /dev/qft3		Unit 3, rewind-on-close
		  4 = /dev/nqft0	Unit 0, no rewind-on-close
		  5 = /dev/nqft1	Unit 1, no rewind-on-close
		  6 = /dev/nqft2	Unit 2, no rewind-on-close
		  7 = /dev/nqft3	Unit 3, no rewind-on-close
		 16 = /dev/zqft0	Unit 0, rewind-on-close, compression
		 17 = /dev/zqft1	Unit 1, rewind-on-close, compression
		 18 = /dev/zqft2	Unit 2, rewind-on-close, compression
		 19 = /dev/zqft3	Unit 3, rewind-on-close, compression
		 20 = /dev/nzqft0	Unit 0, no rewind-on-close, compression
		 21 = /dev/nzqft1	Unit 1, no rewind-on-close, compression
		 22 = /dev/nzqft2	Unit 2, no rewind-on-close, compression
		 23 = /dev/nzqft3	Unit 3, no rewind-on-close, compression
		 32 = /dev/rawqft0	Unit 0, rewind-on-close, no file marks
		 33 = /dev/rawqft1	Unit 1, rewind-on-close, no file marks
		 34 = /dev/rawqft2	Unit 2, rewind-on-close, no file marks
		 35 = /dev/rawqft3	Unit 3, rewind-on-close, no file marks
		 36 = /dev/nrawqft0	Unit 0, no rewind-on-close, no file marks
		 37 = /dev/nrawqft1	Unit 1, no rewind-on-close, no file marks
		 38 = /dev/nrawqft2	Unit 2, no rewind-on-close, no file marks
		 39 = /dev/nrawqft3	Unit 3, no rewind-on-close, no file marks
    block	Third Matsushita (Panasonic/SoundBlaster) CD-ROM
		  0 = /dev/sbpcd8	Panasonic CD-ROM controller 2 unit 0
		  1 = /dev/sbpcd9	Panasonic CD-ROM controller 2 unit 1
		  2 = /dev/sbpcd10	Panasonic CD-ROM controller 2 unit 2
		  3 = /dev/sbpcd11	Panasonic CD-ROM controller 2 unit 3

 28 char	Stallion serial card - card programming
		  0 = /dev/staliomem0	First Stallion card I/O memory
		  1 = /dev/staliomem1	Second Stallion card I/O memory
		  2 = /dev/staliomem2	Third Stallion card I/O memory
		  3 = /dev/staliomem3	Fourth Stallion card I/O memory
    char	Atari SLM ACSI laser printer (68k/Atari)
		  0 = /dev/slm0		First SLM laser printer
		  1 = /dev/slm1		Second SLM laser printer
		    ...
    block	Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
		  0 = /dev/sbpcd12	Panasonic CD-ROM controller 3 unit 0
		  1 = /dev/sbpcd13	Panasonic CD-ROM controller 3 unit 1
		  2 = /dev/sbpcd14	Panasonic CD-ROM controller 3 unit 2
		  3 = /dev/sbpcd15	Panasonic CD-ROM controller 3 unit 3
    block	ACSI disk (68k/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
		    ...
		240 = /dev/adp		16th ACSI disk whole disk

		Partitions are handled in the same way as for IDE
		disks (see major number 3) except that the limit on
		partitions is 15, like SCSI.

 29 char	Universal frame buffer
		  0 = /dev/fb0		First frame buffer
		  1 = /dev/fb1		Second frame buffer
		    ...
		 31 = /dev/fb31		32nd frame buffer

		For backwards compatibility {2.6} the following
		progression is also handled by current kernels:
		  0 = /dev/fb0
		 32 = /dev/fb1
		    ...
		224 = /dev/fb7

    block	Aztech/Orchid/Okano/Wearnes CD-ROM
		  0 = /dev/aztcd	Aztech CD-ROM

 30 char	iBCS-2 compatibility devices
		  0 = /dev/socksys	Socket access
		  1 = /dev/spx		SVR3 local X interface
		  2 = /dev/inet/arp	Network access
		  2 = /dev/inet/icmp	Network access
		  2 = /dev/inet/ip	Network access
		  2 = /dev/inet/udp	Network access
		  2 = /dev/inet/tcp	Network access

		Additionally, iBCS-2 requires /dev/nfsd to be a link
		to /dev/socksys, and /dev/X0R to be a link to
		/dev/null.

    block	Philips LMS CM-205 CD-ROM
		  0 = /dev/cm205cd	Philips LMS CM-205 CD-ROM

		/dev/lmscd is an older name for this device.  This
		driver does not work with the CM-205MS CD-ROM.

 31 char	MPU-401 MIDI
		  0 = /dev/mpu401data	MPU-401 data port
		  1 = /dev/mpu401stat	MPU-401 status port
    block	ROM/flash memory card
		  0 = /dev/rom0		First ROM card (rw)
		      ...
		  7 = /dev/rom7		Eighth ROM card (rw)
		  8 = /dev/rrom0	First ROM card (ro)
		    ...
		 15 = /dev/rrom7	Eighth ROM card (ro)
		 16 = /dev/flash0	First flash memory card (rw)
		    ...
		 23 = /dev/flash7	Eighth flash memory card (rw)
		 24 = /dev/rflash0	First flash memory card (ro)
		    ...
		 31 = /dev/rflash7	Eighth flash memory card (ro)

		The read-write (rw) devices support back-caching