xref: /linux/Documentation/admin-guide/devices.txt (revision d060296cc0300ae8ed08004ebd3994bf325fa257)
1   0		Unnamed devices (e.g. non-device mounts)
2		  0 = reserved as null device number
3		See block major 144, 145, 146 for expansion areas.
4
5   1 char	Memory devices
6		  1 = /dev/mem		Physical memory access
7		  2 = /dev/kmem		Kernel virtual memory access
8		  3 = /dev/null		Null device
9		  4 = /dev/port		I/O port access
10		  5 = /dev/zero		Null byte source
11		  6 = /dev/core		OBSOLETE - replaced by /proc/kcore
12		  7 = /dev/full		Returns ENOSPC on write
13		  8 = /dev/random	Nondeterministic random number gen.
14		  9 = /dev/urandom	Faster, less secure random number gen.
15		 10 = /dev/aio		Asynchronous I/O notification interface
16		 11 = /dev/kmsg		Writes to this come out as printk's, reads
17					export the buffered printk records.
18		 12 = /dev/oldmem	OBSOLETE - replaced by /proc/vmcore
19
20   1 block	RAM disk
21		  0 = /dev/ram0		First RAM disk
22		  1 = /dev/ram1		Second RAM disk
23		    ...
24		250 = /dev/initrd	Initial RAM disk
25
26		Older kernels had /dev/ramdisk (1, 1) here.
27		/dev/initrd refers to a RAM disk which was preloaded
28		by the boot loader; newer kernels use /dev/ram0 for
29		the initrd.
30
31   2 char	Pseudo-TTY masters
32		  0 = /dev/ptyp0	First PTY master
33		  1 = /dev/ptyp1	Second PTY master
34		    ...
35		255 = /dev/ptyef	256th PTY master
36
37		Pseudo-tty's are named as follows:
38		* Masters are "pty", slaves are "tty";
39		* the fourth letter is one of pqrstuvwxyzabcde indicating
40		  the 1st through 16th series of 16 pseudo-ttys each, and
41		* the fifth letter is one of 0123456789abcdef indicating
42		  the position within the series.
43
44		These are the old-style (BSD) PTY devices; Unix98
45		devices are on major 128 and above and use the PTY
46		master multiplex (/dev/ptmx) to acquire a PTY on
47		demand.
48
49   2 block	Floppy disks
50		  0 = /dev/fd0		Controller 0, drive 0, autodetect
51		  1 = /dev/fd1		Controller 0, drive 1, autodetect
52		  2 = /dev/fd2		Controller 0, drive 2, autodetect
53		  3 = /dev/fd3		Controller 0, drive 3, autodetect
54		128 = /dev/fd4		Controller 1, drive 0, autodetect
55		129 = /dev/fd5		Controller 1, drive 1, autodetect
56		130 = /dev/fd6		Controller 1, drive 2, autodetect
57		131 = /dev/fd7		Controller 1, drive 3, autodetect
58
59		To specify format, add to the autodetect device number:
60		  0 = /dev/fd?		Autodetect format
61		  4 = /dev/fd?d360	5.25"  360K in a 360K  drive(1)
62		 20 = /dev/fd?h360	5.25"  360K in a 1200K drive(1)
63		 48 = /dev/fd?h410	5.25"  410K in a 1200K drive
64		 64 = /dev/fd?h420	5.25"  420K in a 1200K drive
65		 24 = /dev/fd?h720	5.25"  720K in a 1200K drive
66		 80 = /dev/fd?h880	5.25"  880K in a 1200K drive(1)
67		  8 = /dev/fd?h1200	5.25" 1200K in a 1200K drive(1)
68		 40 = /dev/fd?h1440	5.25" 1440K in a 1200K drive(1)
69		 56 = /dev/fd?h1476	5.25" 1476K in a 1200K drive
70		 72 = /dev/fd?h1494	5.25" 1494K in a 1200K drive
71		 92 = /dev/fd?h1600	5.25" 1600K in a 1200K drive(1)
72
73		 12 = /dev/fd?u360	3.5"   360K Double Density(2)
74		 16 = /dev/fd?u720	3.5"   720K Double Density(1)
75		120 = /dev/fd?u800	3.5"   800K Double Density(2)
76		 52 = /dev/fd?u820	3.5"   820K Double Density
77		 68 = /dev/fd?u830	3.5"   830K Double Density
78		 84 = /dev/fd?u1040	3.5"  1040K Double Density(1)
79		 88 = /dev/fd?u1120	3.5"  1120K Double Density(1)
80		 28 = /dev/fd?u1440	3.5"  1440K High Density(1)
81		124 = /dev/fd?u1600	3.5"  1600K High Density(1)
82		 44 = /dev/fd?u1680	3.5"  1680K High Density(3)
83		 60 = /dev/fd?u1722	3.5"  1722K High Density
84		 76 = /dev/fd?u1743	3.5"  1743K High Density
85		 96 = /dev/fd?u1760	3.5"  1760K High Density
86		116 = /dev/fd?u1840	3.5"  1840K High Density(3)
87		100 = /dev/fd?u1920	3.5"  1920K High Density(1)
88		 32 = /dev/fd?u2880	3.5"  2880K Extra Density(1)
89		104 = /dev/fd?u3200	3.5"  3200K Extra Density
90		108 = /dev/fd?u3520	3.5"  3520K Extra Density
91		112 = /dev/fd?u3840	3.5"  3840K Extra Density(1)
92
93		 36 = /dev/fd?CompaQ	Compaq 2880K drive; obsolete?
94
95		(1) Autodetectable format
96		(2) Autodetectable format in a Double Density (720K) drive only
97		(3) Autodetectable format in a High Density (1440K) drive only
98
99		NOTE: The letter in the device name (d, q, h or u)
100		signifies the type of drive: 5.25" Double Density (d),
101		5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
102		(any model, u).	 The use of the capital letters D, H
103		and E for the 3.5" models have been deprecated, since
104		the drive type is insignificant for these devices.
105
106   3 char	Pseudo-TTY slaves
107		  0 = /dev/ttyp0	First PTY slave
108		  1 = /dev/ttyp1	Second PTY slave
109		    ...
110		255 = /dev/ttyef	256th PTY slave
111
112		These are the old-style (BSD) PTY devices; Unix98
113		devices are on major 136 and above.
114
115   3 block	First MFM, RLL and IDE hard disk/CD-ROM interface
116		  0 = /dev/hda		Master: whole disk (or CD-ROM)
117		 64 = /dev/hdb		Slave: whole disk (or CD-ROM)
118
119		For partitions, add to the whole disk device number:
120		  0 = /dev/hd?		Whole disk
121		  1 = /dev/hd?1		First partition
122		  2 = /dev/hd?2		Second partition
123		    ...
124		 63 = /dev/hd?63	63rd partition
125
126		For Linux/i386, partitions 1-4 are the primary
127		partitions, and 5 and above are logical partitions.
128		Other versions of Linux use partitioning schemes
129		appropriate to their respective architectures.
130
131   4 char	TTY devices
132		  0 = /dev/tty0		Current virtual console
133
134		  1 = /dev/tty1		First virtual console
135		    ...
136		 63 = /dev/tty63	63rd virtual console
137		 64 = /dev/ttyS0	First UART serial port
138		    ...
139		255 = /dev/ttyS191	192nd UART serial port
140
141		UART serial ports refer to 8250/16450/16550 series devices.
142
143		Older versions of the Linux kernel used this major
144		number for BSD PTY devices.  As of Linux 2.1.115, this
145		is no longer supported.	 Use major numbers 2 and 3.
146
147   4 block	Aliases for dynamically allocated major devices to be used
148		when its not possible to create the real device nodes
149		because the root filesystem is mounted read-only.
150
151		   0 = /dev/root
152
153   5 char	Alternate TTY devices
154		  0 = /dev/tty		Current TTY device
155		  1 = /dev/console	System console
156		  2 = /dev/ptmx		PTY master multiplex
157		  3 = /dev/ttyprintk	User messages via printk TTY device
158		 64 = /dev/cua0		Callout device for ttyS0
159		    ...
160		255 = /dev/cua191	Callout device for ttyS191
161
162		(5,1) is /dev/console starting with Linux 2.1.71.  See
163		the section on terminal devices for more information
164		on /dev/console.
165
166   6 char	Parallel printer devices
167		  0 = /dev/lp0		Parallel printer on parport0
168		  1 = /dev/lp1		Parallel printer on parport1
169		    ...
170
171		Current Linux kernels no longer have a fixed mapping
172		between parallel ports and I/O addresses.  Instead,
173		they are redirected through the parport multiplex layer.
174
175   7 char	Virtual console capture devices
176		  0 = /dev/vcs		Current vc text contents
177		  1 = /dev/vcs1		tty1 text contents
178		    ...
179		 63 = /dev/vcs63	tty63 text contents
180		128 = /dev/vcsa		Current vc text/attribute contents
181		129 = /dev/vcsa1	tty1 text/attribute contents
182		    ...
183		191 = /dev/vcsa63	tty63 text/attribute contents
184
185		NOTE: These devices permit both read and write access.
186
187   7 block	Loopback devices
188		  0 = /dev/loop0	First loop device
189		  1 = /dev/loop1	Second loop device
190		    ...
191
192		The loop devices are used to mount filesystems not
193		associated with block devices.	The binding to the
194		loop devices is handled by mount(8) or losetup(8).
195
196   8 block	SCSI disk devices (0-15)
197		  0 = /dev/sda		First SCSI disk whole disk
198		 16 = /dev/sdb		Second SCSI disk whole disk
199		 32 = /dev/sdc		Third SCSI disk whole disk
200		    ...
201		240 = /dev/sdp		Sixteenth SCSI disk whole disk
202
203		Partitions are handled in the same way as for IDE
204		disks (see major number 3) except that the limit on
205		partitions is 15.
206
207   9 char	SCSI tape devices
208		  0 = /dev/st0		First SCSI tape, mode 0
209		  1 = /dev/st1		Second SCSI tape, mode 0
210		    ...
211		 32 = /dev/st0l		First SCSI tape, mode 1
212		 33 = /dev/st1l		Second SCSI tape, mode 1
213		    ...
214		 64 = /dev/st0m		First SCSI tape, mode 2
215		 65 = /dev/st1m		Second SCSI tape, mode 2
216		    ...
217		 96 = /dev/st0a		First SCSI tape, mode 3
218		 97 = /dev/st1a		Second SCSI tape, mode 3
219		      ...
220		128 = /dev/nst0		First SCSI tape, mode 0, no rewind
221		129 = /dev/nst1		Second SCSI tape, mode 0, no rewind
222		    ...
223		160 = /dev/nst0l	First SCSI tape, mode 1, no rewind
224		161 = /dev/nst1l	Second SCSI tape, mode 1, no rewind
225		    ...
226		192 = /dev/nst0m	First SCSI tape, mode 2, no rewind
227		193 = /dev/nst1m	Second SCSI tape, mode 2, no rewind
228		    ...
229		224 = /dev/nst0a	First SCSI tape, mode 3, no rewind
230		225 = /dev/nst1a	Second SCSI tape, mode 3, no rewind
231		    ...
232
233		"No rewind" refers to the omission of the default
234		automatic rewind on device close.  The MTREW or MTOFFL
235		ioctl()'s can be used to rewind the tape regardless of
236		the device used to access it.
237
238   9 block	Metadisk (RAID) devices
239		  0 = /dev/md0		First metadisk group
240		  1 = /dev/md1		Second metadisk group
241		    ...
242
243		The metadisk driver is used to span a
244		filesystem across multiple physical disks.
245
246  10 char	Non-serial mice, misc features
247		  0 = /dev/logibm	Logitech bus mouse
248		  1 = /dev/psaux	PS/2-style mouse port
249		  2 = /dev/inportbm	Microsoft Inport bus mouse
250		  3 = /dev/atibm	ATI XL bus mouse
251		  4 = /dev/jbm		J-mouse
252		  4 = /dev/amigamouse	Amiga mouse (68k/Amiga)
253		  5 = /dev/atarimouse	Atari mouse
254		  6 = /dev/sunmouse	Sun mouse
255		  7 = /dev/amigamouse1	Second Amiga mouse
256		  8 = /dev/smouse	Simple serial mouse driver
257		  9 = /dev/pc110pad	IBM PC-110 digitizer pad
258		 10 = /dev/adbmouse	Apple Desktop Bus mouse
259		 11 = /dev/vrtpanel	Vr41xx embedded touch panel
260		 13 = /dev/vpcmouse	Connectix Virtual PC Mouse
261		 14 = /dev/touchscreen/ucb1x00  UCB 1x00 touchscreen
262		 15 = /dev/touchscreen/mk712	MK712 touchscreen
263		128 = /dev/beep		Fancy beep device
264		129 =
265		130 = /dev/watchdog	Watchdog timer port
266		131 = /dev/temperature	Machine internal temperature
267		132 = /dev/hwtrap	Hardware fault trap
268		133 = /dev/exttrp	External device trap
269		134 = /dev/apm_bios	Advanced Power Management BIOS
270		135 = /dev/rtc		Real Time Clock
271		137 = /dev/vhci		Bluetooth virtual HCI driver
272		139 = /dev/openprom	SPARC OpenBoot PROM
273		140 = /dev/relay8	Berkshire Products Octal relay card
274		141 = /dev/relay16	Berkshire Products ISO-16 relay card
275		142 =
276		143 = /dev/pciconf	PCI configuration space
277		144 = /dev/nvram	Non-volatile configuration RAM
278		145 = /dev/hfmodem	Soundcard shortwave modem control
279		146 = /dev/graphics	Linux/SGI graphics device
280		147 = /dev/opengl	Linux/SGI OpenGL pipe
281		148 = /dev/gfx		Linux/SGI graphics effects device
282		149 = /dev/input/mouse	Linux/SGI Irix emulation mouse
283		150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
284		151 = /dev/led		Front panel LEDs
285		152 = /dev/kpoll	Kernel Poll Driver
286		153 = /dev/mergemem	Memory merge device
287		154 = /dev/pmu		Macintosh PowerBook power manager
288		155 = /dev/isictl	MultiTech ISICom serial control
289		156 = /dev/lcd		Front panel LCD display
290		157 = /dev/ac		Applicom Intl Profibus card
291		158 = /dev/nwbutton	Netwinder external button
292		159 = /dev/nwdebug	Netwinder debug interface
293		160 = /dev/nwflash	Netwinder flash memory
294		161 = /dev/userdma	User-space DMA access
295		162 = /dev/smbus	System Management Bus
296		163 = /dev/lik		Logitech Internet Keyboard
297		164 = /dev/ipmo		Intel Intelligent Platform Management
298		165 = /dev/vmmon	VMware virtual machine monitor
299		166 = /dev/i2o/ctl	I2O configuration manager
300		167 = /dev/specialix_sxctl Specialix serial control
301		168 = /dev/tcldrv	Technology Concepts serial control
302		169 = /dev/specialix_rioctl Specialix RIO serial control
303		170 = /dev/thinkpad/thinkpad	IBM Thinkpad devices
304		171 = /dev/srripc	QNX4 API IPC manager
305		172 = /dev/usemaclone	Semaphore clone device
306		173 = /dev/ipmikcs	Intelligent Platform Management
307		174 = /dev/uctrl	SPARCbook 3 microcontroller
308		175 = /dev/agpgart	AGP Graphics Address Remapping Table
309		176 = /dev/gtrsc	Gorgy Timing radio clock
310		177 = /dev/cbm		Serial CBM bus
311		178 = /dev/jsflash	JavaStation OS flash SIMM
312		179 = /dev/xsvc		High-speed shared-mem/semaphore service
313		180 = /dev/vrbuttons	Vr41xx button input device
314		181 = /dev/toshiba	Toshiba laptop SMM support
315		182 = /dev/perfctr	Performance-monitoring counters
316		183 = /dev/hwrng	Generic random number generator
317		184 = /dev/cpu/microcode CPU microcode update interface
318		186 = /dev/atomicps	Atomic shapshot of process state data
319		187 = /dev/irnet	IrNET device
320		188 = /dev/smbusbios	SMBus BIOS
321		189 = /dev/ussp_ctl	User space serial port control
322		190 = /dev/crash	Mission Critical Linux crash dump facility
323		191 = /dev/pcl181	<information missing>
324		192 = /dev/nas_xbus	NAS xbus LCD/buttons access
325		193 = /dev/d7s		SPARC 7-segment display
326		194 = /dev/zkshim	Zero-Knowledge network shim control
327		195 = /dev/elographics/e2201	Elographics touchscreen E271-2201
328		196 = /dev/vfio/vfio	VFIO userspace driver interface
329		197 = /dev/pxa3xx-gcu	PXA3xx graphics controller unit driver
330		198 = /dev/sexec	Signed executable interface
331		199 = /dev/scanners/cuecat :CueCat barcode scanner
332		200 = /dev/net/tun	TAP/TUN network device
333		201 = /dev/button/gulpb	Transmeta GULP-B buttons
334		202 = /dev/emd/ctl	Enhanced Metadisk RAID (EMD) control
335		203 = /dev/cuse		Cuse (character device in user-space)
336		204 = /dev/video/em8300		EM8300 DVD decoder control
337		205 = /dev/video/em8300_mv	EM8300 DVD decoder video
338		206 = /dev/video/em8300_ma	EM8300 DVD decoder audio
339		207 = /dev/video/em8300_sp	EM8300 DVD decoder subpicture
340		208 = /dev/compaq/cpqphpc	Compaq PCI Hot Plug Controller
341		209 = /dev/compaq/cpqrid	Compaq Remote Insight Driver
342		210 = /dev/impi/bt	IMPI coprocessor block transfer
343		211 = /dev/impi/smic	IMPI coprocessor stream interface
344		212 = /dev/watchdogs/0	First watchdog device
345		213 = /dev/watchdogs/1	Second watchdog device
346		214 = /dev/watchdogs/2	Third watchdog device
347		215 = /dev/watchdogs/3	Fourth watchdog device
348		216 = /dev/fujitsu/apanel	Fujitsu/Siemens application panel
349		217 = /dev/ni/natmotn		National Instruments Motion
350		218 = /dev/kchuid	Inter-process chuid control
351		219 = /dev/modems/mwave	MWave modem firmware upload
352		220 = /dev/mptctl	Message passing technology (MPT) control
353		221 = /dev/mvista/hssdsi	Montavista PICMG hot swap system driver
354		222 = /dev/mvista/hasi		Montavista PICMG high availability
355		223 = /dev/input/uinput		User level driver support for input
356		224 = /dev/tpm		TCPA TPM driver
357		225 = /dev/pps		Pulse Per Second driver
358		226 = /dev/systrace	Systrace device
359		227 = /dev/mcelog	X86_64 Machine Check Exception driver
360		228 = /dev/hpet		HPET driver
361		229 = /dev/fuse		Fuse (virtual filesystem in user-space)
362		230 = /dev/midishare	MidiShare driver
363		231 = /dev/snapshot	System memory snapshot device
364		232 = /dev/kvm		Kernel-based virtual machine (hardware virtualization extensions)
365		233 = /dev/kmview	View-OS A process with a view
366		234 = /dev/btrfs-control	Btrfs control device
367		235 = /dev/autofs	Autofs control device
368		236 = /dev/mapper/control	Device-Mapper control device
369		237 = /dev/loop-control Loopback control device
370		238 = /dev/vhost-net	Host kernel accelerator for virtio net
371		239 = /dev/uhid		User-space I/O driver support for HID subsystem
372		240 = /dev/userio	Serio driver testing device
373		241 = /dev/vhost-vsock	Host kernel driver for virtio vsock
374
375		242-254			Reserved for local use
376		255			Reserved for MISC_DYNAMIC_MINOR
377
378  11 char	Raw keyboard device	(Linux/SPARC only)
379		  0 = /dev/kbd		Raw keyboard device
380
381  11 char	Serial Mux device	(Linux/PA-RISC only)
382		  0 = /dev/ttyB0	First mux port
383		  1 = /dev/ttyB1	Second mux port
384		    ...
385
386  11 block	SCSI CD-ROM devices
387		  0 = /dev/scd0		First SCSI CD-ROM
388		  1 = /dev/scd1		Second SCSI CD-ROM
389		    ...
390
391		The prefix /dev/sr (instead of /dev/scd) has been deprecated.
392
393  12 char	QIC-02 tape
394		  2 = /dev/ntpqic11	QIC-11, no rewind-on-close
395		  3 = /dev/tpqic11	QIC-11, rewind-on-close
396		  4 = /dev/ntpqic24	QIC-24, no rewind-on-close
397		  5 = /dev/tpqic24	QIC-24, rewind-on-close
398		  6 = /dev/ntpqic120	QIC-120, no rewind-on-close
399		  7 = /dev/tpqic120	QIC-120, rewind-on-close
400		  8 = /dev/ntpqic150	QIC-150, no rewind-on-close
401		  9 = /dev/tpqic150	QIC-150, rewind-on-close
402
403		The device names specified are proposed -- if there
404		are "standard" names for these devices, please let me know.
405
406  12 block
407
408  13 char	Input core
409		  0 = /dev/input/js0	First joystick
410		  1 = /dev/input/js1	Second joystick
411		    ...
412		 32 = /dev/input/mouse0	First mouse
413		 33 = /dev/input/mouse1	Second mouse
414		    ...
415		 63 = /dev/input/mice	Unified mouse
416		 64 = /dev/input/event0	First event queue
417		 65 = /dev/input/event1	Second event queue
418		    ...
419
420		Each device type has 5 bits (32 minors).
421
422  13 block	Previously used for the XT disk (/dev/xdN)
423		Deleted in kernel v3.9.
424
425  14 char	Open Sound System (OSS)
426		  0 = /dev/mixer	Mixer control
427		  1 = /dev/sequencer	Audio sequencer
428		  2 = /dev/midi00	First MIDI port
429		  3 = /dev/dsp		Digital audio
430		  4 = /dev/audio	Sun-compatible digital audio
431		  6 =
432		  7 = /dev/audioctl	SPARC audio control device
433		  8 = /dev/sequencer2	Sequencer -- alternate device
434		 16 = /dev/mixer1	Second soundcard mixer control
435		 17 = /dev/patmgr0	Sequencer patch manager
436		 18 = /dev/midi01	Second MIDI port
437		 19 = /dev/dsp1		Second soundcard digital audio
438		 20 = /dev/audio1	Second soundcard Sun digital audio
439		 33 = /dev/patmgr1	Sequencer patch manager
440		 34 = /dev/midi02	Third MIDI port
441		 50 = /dev/midi03	Fourth MIDI port
442
443  14 block
444
445  15 char	Joystick
446		  0 = /dev/js0		First analog joystick
447		  1 = /dev/js1		Second analog joystick
448		    ...
449		128 = /dev/djs0		First digital joystick
450		129 = /dev/djs1		Second digital joystick
451		    ...
452  15 block	Sony CDU-31A/CDU-33A CD-ROM
453		  0 = /dev/sonycd	Sony CDU-31a CD-ROM
454
455  16 char	Non-SCSI scanners
456		  0 = /dev/gs4500	Genius 4500 handheld scanner
457
458  16 block	GoldStar CD-ROM
459		  0 = /dev/gscd		GoldStar CD-ROM
460
461  17 char	OBSOLETE (was Chase serial card)
462		  0 = /dev/ttyH0	First Chase port
463		  1 = /dev/ttyH1	Second Chase port
464		    ...
465  17 block	Optics Storage CD-ROM
466		  0 = /dev/optcd	Optics Storage CD-ROM
467
468  18 char	OBSOLETE (was Chase serial card - alternate devices)
469		  0 = /dev/cuh0		Callout device for ttyH0
470		  1 = /dev/cuh1		Callout device for ttyH1
471		    ...
472  18 block	Sanyo CD-ROM
473		  0 = /dev/sjcd		Sanyo CD-ROM
474
475  19 char	Cyclades serial card
476		  0 = /dev/ttyC0	First Cyclades port
477		    ...
478		 31 = /dev/ttyC31	32nd Cyclades port
479
480  19 block	"Double" compressed disk
481		  0 = /dev/double0	First compressed disk
482		    ...
483		  7 = /dev/double7	Eighth compressed disk
484		128 = /dev/cdouble0	Mirror of first compressed disk
485		    ...
486		135 = /dev/cdouble7	Mirror of eighth compressed disk
487
488		See the Double documentation for the meaning of the
489		mirror devices.
490
491  20 char	Cyclades serial card - alternate devices
492		  0 = /dev/cub0		Callout device for ttyC0
493		    ...
494		 31 = /dev/cub31	Callout device for ttyC31
495
496  20 block	Hitachi CD-ROM (under development)
497		  0 = /dev/hitcd	Hitachi CD-ROM
498
499  21 char	Generic SCSI access
500		  0 = /dev/sg0		First generic SCSI device
501		  1 = /dev/sg1		Second generic SCSI device
502		    ...
503
504		Most distributions name these /dev/sga, /dev/sgb...;
505		this sets an unnecessary limit of 26 SCSI devices in
506		the system and is counter to standard Linux
507		device-naming practice.
508
509  21 block	Acorn MFM hard drive interface
510		  0 = /dev/mfma		First MFM drive whole disk
511		 64 = /dev/mfmb		Second MFM drive whole disk
512
513		This device is used on the ARM-based Acorn RiscPC.
514		Partitions are handled the same way as for IDE disks
515		(see major number 3).
516
517  22 char	Digiboard serial card
518		  0 = /dev/ttyD0	First Digiboard port
519		  1 = /dev/ttyD1	Second Digiboard port
520		    ...
521  22 block	Second IDE hard disk/CD-ROM interface
522		  0 = /dev/hdc		Master: whole disk (or CD-ROM)
523		 64 = /dev/hdd		Slave: whole disk (or CD-ROM)
524
525		Partitions are handled the same way as for the first
526		interface (see major number 3).
527
528  23 char	Digiboard serial card - alternate devices
529		  0 = /dev/cud0		Callout device for ttyD0
530		  1 = /dev/cud1		Callout device for ttyD1
531		      ...
532  23 block	Mitsumi proprietary CD-ROM
533		  0 = /dev/mcd		Mitsumi CD-ROM
534
535  24 char	Stallion serial card
536		  0 = /dev/ttyE0	Stallion port 0 card 0
537		  1 = /dev/ttyE1	Stallion port 1 card 0
538		    ...
539		 64 = /dev/ttyE64	Stallion port 0 card 1
540		 65 = /dev/ttyE65	Stallion port 1 card 1
541		      ...
542		128 = /dev/ttyE128	Stallion port 0 card 2
543		129 = /dev/ttyE129	Stallion port 1 card 2
544		    ...
545		192 = /dev/ttyE192	Stallion port 0 card 3
546		193 = /dev/ttyE193	Stallion port 1 card 3
547		    ...
548  24 block	Sony CDU-535 CD-ROM
549		  0 = /dev/cdu535	Sony CDU-535 CD-ROM
550
551  25 char	Stallion serial card - alternate devices
552		  0 = /dev/cue0		Callout device for ttyE0
553		  1 = /dev/cue1		Callout device for ttyE1
554		    ...
555		 64 = /dev/cue64	Callout device for ttyE64
556		 65 = /dev/cue65	Callout device for ttyE65
557		    ...
558		128 = /dev/cue128	Callout device for ttyE128
559		129 = /dev/cue129	Callout device for ttyE129
560		    ...
561		192 = /dev/cue192	Callout device for ttyE192
562		193 = /dev/cue193	Callout device for ttyE193
563		      ...
564  25 block	First Matsushita (Panasonic/SoundBlaster) CD-ROM
565		  0 = /dev/sbpcd0	Panasonic CD-ROM controller 0 unit 0
566		  1 = /dev/sbpcd1	Panasonic CD-ROM controller 0 unit 1
567		  2 = /dev/sbpcd2	Panasonic CD-ROM controller 0 unit 2
568		  3 = /dev/sbpcd3	Panasonic CD-ROM controller 0 unit 3
569
570  26 char
571
572  26 block	Second Matsushita (Panasonic/SoundBlaster) CD-ROM
573		  0 = /dev/sbpcd4	Panasonic CD-ROM controller 1 unit 0
574		  1 = /dev/sbpcd5	Panasonic CD-ROM controller 1 unit 1
575		  2 = /dev/sbpcd6	Panasonic CD-ROM controller 1 unit 2
576		  3 = /dev/sbpcd7	Panasonic CD-ROM controller 1 unit 3
577
578  27 char	QIC-117 tape
579		  0 = /dev/qft0		Unit 0, rewind-on-close
580		  1 = /dev/qft1		Unit 1, rewind-on-close
581		  2 = /dev/qft2		Unit 2, rewind-on-close
582		  3 = /dev/qft3		Unit 3, rewind-on-close
583		  4 = /dev/nqft0	Unit 0, no rewind-on-close
584		  5 = /dev/nqft1	Unit 1, no rewind-on-close
585		  6 = /dev/nqft2	Unit 2, no rewind-on-close
586		  7 = /dev/nqft3	Unit 3, no rewind-on-close
587		 16 = /dev/zqft0	Unit 0, rewind-on-close, compression
588		 17 = /dev/zqft1	Unit 1, rewind-on-close, compression
589		 18 = /dev/zqft2	Unit 2, rewind-on-close, compression
590		 19 = /dev/zqft3	Unit 3, rewind-on-close, compression
591		 20 = /dev/nzqft0	Unit 0, no rewind-on-close, compression
592		 21 = /dev/nzqft1	Unit 1, no rewind-on-close, compression
593		 22 = /dev/nzqft2	Unit 2, no rewind-on-close, compression
594		 23 = /dev/nzqft3	Unit 3, no rewind-on-close, compression
595		 32 = /dev/rawqft0	Unit 0, rewind-on-close, no file marks
596		 33 = /dev/rawqft1	Unit 1, rewind-on-close, no file marks
597		 34 = /dev/rawqft2	Unit 2, rewind-on-close, no file marks
598		 35 = /dev/rawqft3	Unit 3, rewind-on-close, no file marks
599		 36 = /dev/nrawqft0	Unit 0, no rewind-on-close, no file marks
600		 37 = /dev/nrawqft1	Unit 1, no rewind-on-close, no file marks
601		 38 = /dev/nrawqft2	Unit 2, no rewind-on-close, no file marks
602		 39 = /dev/nrawqft3	Unit 3, no rewind-on-close, no file marks
603
604  27 block	Third Matsushita (Panasonic/SoundBlaster) CD-ROM
605		  0 = /dev/sbpcd8	Panasonic CD-ROM controller 2 unit 0
606		  1 = /dev/sbpcd9	Panasonic CD-ROM controller 2 unit 1
607		  2 = /dev/sbpcd10	Panasonic CD-ROM controller 2 unit 2
608		  3 = /dev/sbpcd11	Panasonic CD-ROM controller 2 unit 3
609
610  28 char	Stallion serial card - card programming
611		  0 = /dev/staliomem0	First Stallion card I/O memory
612		  1 = /dev/staliomem1	Second Stallion card I/O memory
613		  2 = /dev/staliomem2	Third Stallion card I/O memory
614		  3 = /dev/staliomem3	Fourth Stallion card I/O memory
615
616  28 char	Atari SLM ACSI laser printer (68k/Atari)
617		  0 = /dev/slm0		First SLM laser printer
618		  1 = /dev/slm1		Second SLM laser printer
619		    ...
620  28 block	Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
621		  0 = /dev/sbpcd12	Panasonic CD-ROM controller 3 unit 0
622		  1 = /dev/sbpcd13	Panasonic CD-ROM controller 3 unit 1
623		  2 = /dev/sbpcd14	Panasonic CD-ROM controller 3 unit 2
624		  3 = /dev/sbpcd15	Panasonic CD-ROM controller 3 unit 3
625
626  28 block	ACSI disk (68k/Atari)
627		  0 = /dev/ada		First ACSI disk whole disk
628		 16 = /dev/adb		Second ACSI disk whole disk
629		 32 = /dev/adc		Third ACSI disk whole disk
630		    ...
631		240 = /dev/adp		16th ACSI disk whole disk
632
633		Partitions are handled in the same way as for IDE
634		disks (see major number 3) except that the limit on
635		partitions is 15, like SCSI.
636
637  29 char	Universal frame buffer
638		  0 = /dev/fb0		First frame buffer
639		  1 = /dev/fb1		Second frame buffer
640		    ...
641		 31 = /dev/fb31		32nd frame buffer
642
643  29 block	Aztech/Orchid/Okano/Wearnes CD-ROM
644		  0 = /dev/aztcd	Aztech CD-ROM
645
646  30 char	iBCS-2 compatibility devices
647		  0 = /dev/socksys	Socket access
648		  1 = /dev/spx		SVR3 local X interface
649		 32 = /dev/inet/ip	Network access
650		 33 = /dev/inet/icmp
651		 34 = /dev/inet/ggp
652		 35 = /dev/inet/ipip
653		 36 = /dev/inet/tcp
654		 37 = /dev/inet/egp
655		 38 = /dev/inet/pup
656		 39 = /dev/inet/udp
657		 40 = /dev/inet/idp
658		 41 = /dev/inet/rawip
659
660		Additionally, iBCS-2 requires the following links:
661
662		/dev/ip -> /dev/inet/ip
663		/dev/icmp -> /dev/inet/icmp
664		/dev/ggp -> /dev/inet/ggp
665		/dev/ipip -> /dev/inet/ipip
666		/dev/tcp -> /dev/inet/tcp
667		/dev/egp -> /dev/inet/egp
668		/dev/pup -> /dev/inet/pup
669		/dev/udp -> /dev/inet/udp
670		/dev/idp -> /dev/inet/idp
671		/dev/rawip -> /dev/inet/rawip
672		/dev/inet/arp -> /dev/inet/udp
673		/dev/inet/rip -> /dev/inet/udp
674		/dev/nfsd -> /dev/socksys
675		/dev/X0R -> /dev/null (? apparently not required ?)
676
677  30 block	Philips LMS CM-205 CD-ROM
678		  0 = /dev/cm205cd	Philips LMS CM-205 CD-ROM
679
680		/dev/lmscd is an older name for this device.  This
681		driver does not work with the CM-205MS CD-ROM.
682
683  31 char	MPU-401 MIDI
684		  0 = /dev/mpu401data	MPU-401 data port
685		  1 = /dev/mpu401stat	MPU-401 status port
686
687  31 block	ROM/flash memory card
688		  0 = /dev/rom0		First ROM card (rw)
689		      ...
690		  7 = /dev/rom7		Eighth ROM card (rw)
691		  8 = /dev/rrom0	First ROM card (ro)
692		    ...
693		 15 = /dev/rrom7	Eighth ROM card (ro)
694		 16 = /dev/flash0	First flash memory card (rw)
695		    ...
696		 23 = /dev/flash7	Eighth flash memory card (rw)
697		 24 = /dev/rflash0	First flash memory card (ro)
698		    ...
699		 31 = /dev/rflash7	Eighth flash memory card (ro)
700
701		The read-write (rw) devices support back-caching
702		written data in RAM, as well as writing to flash RAM
703		devices.  The read-only devices (ro) support reading
704		only.
705
706  32 char	Specialix serial card
707		  0 = /dev/ttyX0	First Specialix port
708		  1 = /dev/ttyX1	Second Specialix port
709		    ...
710  32 block	Philips LMS CM-206 CD-ROM
711		  0 = /dev/cm206cd	Philips LMS CM-206 CD-ROM
712
713  33 char	Specialix serial card - alternate devices
714		  0 = /dev/cux0		Callout device for ttyX0
715		  1 = /dev/cux1		Callout device for ttyX1
716		    ...
717  33 block	Third IDE hard disk/CD-ROM interface
718		  0 = /dev/hde		Master: whole disk (or CD-ROM)
719		 64 = /dev/hdf		Slave: whole disk (or CD-ROM)
720
721		Partitions are handled the same way as for the first
722		interface (see major number 3).
723
724  34 char	Z8530 HDLC driver
725		  0 = /dev/scc0		First Z8530, first port
726		  1 = /dev/scc1		First Z8530, second port
727		  2 = /dev/scc2		Second Z8530, first port
728		  3 = /dev/scc3		Second Z8530, second port
729		    ...
730
731		In a previous version these devices were named
732		/dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
733		on.
734
735  34 block	Fourth IDE hard disk/CD-ROM interface
736		  0 = /dev/hdg		Master: whole disk (or CD-ROM)
737		 64 = /dev/hdh		Slave: whole disk (or CD-ROM)
738
739		Partitions are handled the same way as for the first
740		interface (see major number 3).
741
742  35 char	tclmidi MIDI driver
743		  0 = /dev/midi0	First MIDI port, kernel timed
744		  1 = /dev/midi1	Second MIDI port, kernel timed
745		  2 = /dev/midi2	Third MIDI port, kernel timed
746		  3 = /dev/midi3	Fourth MIDI port, kernel timed
747		 64 = /dev/rmidi0	First MIDI port, untimed
748		 65 = /dev/rmidi1	Second MIDI port, untimed
749		 66 = /dev/rmidi2	Third MIDI port, untimed
750		 67 = /dev/rmidi3	Fourth MIDI port, untimed
751		128 = /dev/smpte0	First MIDI port, SMPTE timed
752		129 = /dev/smpte1	Second MIDI port, SMPTE timed
753		130 = /dev/smpte2	Third MIDI port, SMPTE timed
754		131 = /dev/smpte3	Fourth MIDI port, SMPTE timed
755
756  35 block	Slow memory ramdisk
757		  0 = /dev/slram	Slow memory ramdisk
758
759  36 char	Netlink support
760		  0 = /dev/route	Routing, device updates, kernel to user
761		  1 = /dev/skip		enSKIP security cache control
762		  3 = /dev/fwmonitor	Firewall packet copies
763		 16 = /dev/tap0		First Ethertap device
764		    ...
765		 31 = /dev/tap15	16th Ethertap device
766
767  36 block	OBSOLETE (was MCA ESDI hard disk)
768
769  37 char	IDE tape
770		  0 = /dev/ht0		First IDE tape
771		  1 = /dev/ht1		Second IDE tape
772		    ...
773		128 = /dev/nht0		First IDE tape, no rewind-on-close
774		129 = /dev/nht1		Second IDE tape, no rewind-on-close
775		    ...
776
777		Currently, only one IDE tape drive is supported.
778
779  37 block	Zorro II ramdisk
780		  0 = /dev/z2ram	Zorro II ramdisk
781
782  38 char	Myricom PCI Myrinet board
783		  0 = /dev/mlanai0	First Myrinet board
784		  1 = /dev/mlanai1	Second Myrinet board
785		    ...
786
787		This device is used for status query, board control
788		and "user level packet I/O."  This board is also
789		accessible as a standard networking "eth" device.
790
791  38 block	OBSOLETE (was Linux/AP+)
792
793  39 char	ML-16P experimental I/O board
794		  0 = /dev/ml16pa-a0	First card, first analog channel
795		  1 = /dev/ml16pa-a1	First card, second analog channel
796		    ...
797		 15 = /dev/ml16pa-a15	First card, 16th analog channel
798		 16 = /dev/ml16pa-d	First card, digital lines
799		 17 = /dev/ml16pa-c0	First card, first counter/timer
800		 18 = /dev/ml16pa-c1	First card, second counter/timer
801		 19 = /dev/ml16pa-c2	First card, third counter/timer
802		 32 = /dev/ml16pb-a0	Second card, first analog channel
803		 33 = /dev/ml16pb-a1	Second card, second analog channel
804		    ...
805		 47 = /dev/ml16pb-a15	Second card, 16th analog channel
806		 48 = /dev/ml16pb-d	Second card, digital lines
807		 49 = /dev/ml16pb-c0	Second card, first counter/timer
808		 50 = /dev/ml16pb-c1	Second card, second counter/timer
809		 51 = /dev/ml16pb-c2	Second card, third counter/timer
810		      ...
811  39 block
812
813  40 char
814
815  40 block
816
817  41 char	Yet Another Micro Monitor
818		  0 = /dev/yamm		Yet Another Micro Monitor
819
820  41 block
821
822  42 char	Demo/sample use
823
824  42 block	Demo/sample use
825
826		This number is intended for use in sample code, as
827		well as a general "example" device number.  It
828		should never be used for a device driver that is being
829		distributed; either obtain an official number or use
830		the local/experimental range.  The sudden addition or
831		removal of a driver with this number should not cause
832		ill effects to the system (bugs excepted.)
833
834		IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
835		DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
836
837  43 char	isdn4linux virtual modem
838		  0 = /dev/ttyI0	First virtual modem
839		    ...
840		 63 = /dev/ttyI63	64th virtual modem
841
842  43 block	Network block devices
843		  0 = /dev/nb0		First network block device
844		  1 = /dev/nb1		Second network block device
845		    ...
846
847		Network Block Device is somehow similar to loopback
848		devices: If you read from it, it sends packet across
849		network asking server for data. If you write to it, it
850		sends packet telling server to write. It could be used
851		to mounting filesystems over the net, swapping over
852		the net, implementing block device in userland etc.
853
854  44 char	isdn4linux virtual modem - alternate devices
855		  0 = /dev/cui0		Callout device for ttyI0
856		    ...
857		 63 = /dev/cui63	Callout device for ttyI63
858
859  44 block	Flash Translation Layer (FTL) filesystems
860		  0 = /dev/ftla		FTL on first Memory Technology Device
861		 16 = /dev/ftlb		FTL on second Memory Technology Device
862		 32 = /dev/ftlc		FTL on third Memory Technology Device
863		    ...
864		240 = /dev/ftlp		FTL on 16th Memory Technology Device
865
866		Partitions are handled in the same way as for IDE
867		disks (see major number 3) except that the partition
868		limit is 15 rather than 63 per disk (same as SCSI.)
869
870  45 char	isdn4linux ISDN BRI driver
871		  0 = /dev/isdn0	First virtual B channel raw data
872		    ...
873		 63 = /dev/isdn63	64th virtual B channel raw data
874		 64 = /dev/isdnctrl0	First channel control/debug
875		    ...
876		127 = /dev/isdnctrl63	64th channel control/debug
877
878		128 = /dev/ippp0	First SyncPPP device
879		    ...
880		191 = /dev/ippp63	64th SyncPPP device
881
882		255 = /dev/isdninfo	ISDN monitor interface
883
884  45 block	Parallel port IDE disk devices
885		  0 = /dev/pda		First parallel port IDE disk
886		 16 = /dev/pdb		Second parallel port IDE disk
887		 32 = /dev/pdc		Third parallel port IDE disk
888		 48 = /dev/pdd		Fourth parallel port IDE disk
889
890		Partitions are handled in the same way as for IDE
891		disks (see major number 3) except that the partition
892		limit is 15 rather than 63 per disk.
893
894  46 char	Comtrol Rocketport serial card
895		  0 = /dev/ttyR0	First Rocketport port
896		  1 = /dev/ttyR1	Second Rocketport port
897		    ...
898  46 block	Parallel port ATAPI CD-ROM devices
899		  0 = /dev/pcd0		First parallel port ATAPI CD-ROM
900		  1 = /dev/pcd1		Second parallel port ATAPI CD-ROM
901		  2 = /dev/pcd2		Third parallel port ATAPI CD-ROM
902		  3 = /dev/pcd3		Fourth parallel port ATAPI CD-ROM
903
904  47 char	Comtrol Rocketport serial card - alternate devices
905		  0 = /dev/cur0		Callout device for ttyR0
906		  1 = /dev/cur1		Callout device for ttyR1
907		    ...
908  47 block	Parallel port ATAPI disk devices
909		  0 = /dev/pf0		First parallel port ATAPI disk
910		  1 = /dev/pf1		Second parallel port ATAPI disk
911		  2 = /dev/pf2		Third parallel port ATAPI disk
912		  3 = /dev/pf3		Fourth parallel port ATAPI disk
913
914		This driver is intended for floppy disks and similar
915		devices and hence does not support partitioning.
916
917  48 char	SDL RISCom serial card
918		  0 = /dev/ttyL0	First RISCom port
919		  1 = /dev/ttyL1	Second RISCom port
920		    ...
921  48 block	Mylex DAC960 PCI RAID controller; first controller
922		  0 = /dev/rd/c0d0	First disk, whole disk
923		  8 = /dev/rd/c0d1	Second disk, whole disk
924		    ...
925		248 = /dev/rd/c0d31	32nd disk, whole disk
926
927		For partitions add:
928		  0 = /dev/rd/c?d?	Whole disk
929		  1 = /dev/rd/c?d?p1	First partition
930		    ...
931		  7 = /dev/rd/c?d?p7	Seventh partition
932
933  49 char	SDL RISCom serial card - alternate devices
934		  0 = /dev/cul0		Callout device for ttyL0
935		  1 = /dev/cul1		Callout device for ttyL1
936		    ...
937  49 block	Mylex DAC960 PCI RAID controller; second controller
938		  0 = /dev/rd/c1d0	First disk, whole disk
939		  8 = /dev/rd/c1d1	Second disk, whole disk
940		    ...
941		248 = /dev/rd/c1d31	32nd disk, whole disk
942
943		Partitions are handled as for major 48.
944
945  50 char	Reserved for GLINT
946
947  50 block	Mylex DAC960 PCI RAID controller; third controller
948		  0 = /dev/rd/c2d0	First disk, whole disk
949		  8 = /dev/rd/c2d1	Second disk, whole disk
950		    ...
951		248 = /dev/rd/c2d31	32nd disk, whole disk
952
953  51 char	Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
954		  0 = /dev/bc0		First Baycom radio modem
955		  1 = /dev/bc1		Second Baycom radio modem
956		    ...
957  51 block	Mylex DAC960 PCI RAID controller; fourth controller
958		  0 = /dev/rd/c3d0	First disk, whole disk
959		  8 = /dev/rd/c3d1	Second disk, whole disk
960		    ...
961		248 = /dev/rd/c3d31	32nd disk, whole disk
962
963		Partitions are handled as for major 48.
964
965  52 char	Spellcaster DataComm/BRI ISDN card
966		  0 = /dev/dcbri0	First DataComm card
967		  1 = /dev/dcbri1	Second DataComm card
968		  2 = /dev/dcbri2	Third DataComm card
969		  3 = /dev/dcbri3	Fourth DataComm card
970
971  52 block	Mylex DAC960 PCI RAID controller; fifth controller
972		  0 = /dev/rd/c4d0	First disk, whole disk
973		  8 = /dev/rd/c4d1	Second disk, whole disk
974		    ...
975		248 = /dev/rd/c4d31	32nd disk, whole disk
976
977		Partitions are handled as for major 48.
978
979  53 char	BDM interface for remote debugging MC683xx microcontrollers
980		  0 = /dev/pd_bdm0	PD BDM interface on lp0
981		  1 = /dev/pd_bdm1	PD BDM interface on lp1
982		  2 = /dev/pd_bdm2	PD BDM interface on lp2
983		  4 = /dev/icd_bdm0	ICD BDM interface on lp0
984		  5 = /dev/icd_bdm1	ICD BDM interface on lp1
985		  6 = /dev/icd_bdm2	ICD BDM interface on lp2
986
987		This device is used for the interfacing to the MC683xx
988		microcontrollers via Background Debug Mode by use of a
989		Parallel Port interface. PD is the Motorola Public
990		Domain Interface and ICD is the commercial interface
991		by P&E.
992
993  53 block	Mylex DAC960 PCI RAID controller; sixth controller
994		  0 = /dev/rd/c5d0	First disk, whole disk
995		  8 = /dev/rd/c5d1	Second disk, whole disk
996		    ...
997		248 = /dev/rd/c5d31	32nd disk, whole disk
998
999		Partitions are handled as for major 48.
1000
1001  54 char	Electrocardiognosis Holter serial card
1002		  0 = /dev/holter0	First Holter port
1003		  1 = /dev/holter1	Second Holter port
1004		  2 = /dev/holter2	Third Holter port
1005
1006		A custom serial card used by Electrocardiognosis SRL
1007		<mseritan@ottonel.pub.ro> to transfer data from Holter
1008		24-hour heart monitoring equipment.
1009
1010  54 block	Mylex DAC960 PCI RAID controller; seventh controller
1011		  0 = /dev/rd/c6d0	First disk, whole disk
1012		  8 = /dev/rd/c6d1	Second disk, whole disk
1013		    ...
1014		248 = /dev/rd/c6d31	32nd disk, whole disk
1015
1016		Partitions are handled as for major 48.
1017
1018  55 char	DSP56001 digital signal processor
1019		  0 = /dev/dsp56k	First DSP56001
1020
1021  55 block	Mylex DAC960 PCI RAID controller; eighth controller
1022		  0 = /dev/rd/c7d0	First disk, whole disk
1023		  8 = /dev/rd/c7d1	Second disk, whole disk
1024		    ...
1025		248 = /dev/rd/c7d31	32nd disk, whole disk
1026
1027		Partitions are handled as for major 48.
1028
1029  56 char	Apple Desktop Bus
1030		  0 = /dev/adb		ADB bus control
1031
1032		Additional devices will be added to this number, all
1033		starting with /dev/adb.
1034
1035  56 block	Fifth IDE hard disk/CD-ROM interface
1036		  0 = /dev/hdi		Master: whole disk (or CD-ROM)
1037		 64 = /dev/hdj		Slave: whole disk (or CD-ROM)
1038
1039		Partitions are handled the same way as for the first
1040		interface (see major number 3).
1041
1042  57 char	Hayes ESP serial card
1043		  0 = /dev/ttyP0	First ESP port
1044		  1 = /dev/ttyP1	Second ESP port
1045		    ...
1046
1047  57 block	Sixth IDE hard disk/CD-ROM interface
1048		  0 = /dev/hdk		Master: whole disk (or CD-ROM)
1049		 64 = /dev/hdl		Slave: whole disk (or CD-ROM)
1050
1051		Partitions are handled the same way as for the first
1052		interface (see major number 3).
1053
1054  58 char	Hayes ESP serial card - alternate devices
1055		  0 = /dev/cup0		Callout device for ttyP0
1056		  1 = /dev/cup1		Callout device for ttyP1
1057		    ...
1058
1059  58 block	Reserved for logical volume manager
1060
1061  59 char	sf firewall package
1062		  0 = /dev/firewall	Communication with sf kernel module
1063
1064  59 block	Generic PDA filesystem device
1065		  0 = /dev/pda0		First PDA device
1066		  1 = /dev/pda1		Second PDA device
1067		    ...
1068
1069		The pda devices are used to mount filesystems on
1070		remote pda's (basically slow handheld machines with
1071		proprietary OS's and limited memory and storage
1072		running small fs translation drivers) through serial /
1073		IRDA / parallel links.
1074
1075		NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1076
1077  60-63 char	LOCAL/EXPERIMENTAL USE
1078
1079  60-63 block	LOCAL/EXPERIMENTAL USE
1080		Allocated for local/experimental use.  For devices not
1081		assigned official numbers, these ranges should be
1082		used in order to avoid conflicting with future assignments.
1083
1084  64 char	ENskip kernel encryption package
1085		  0 = /dev/enskip	Communication with ENskip kernel module
1086
1087  64 block	Scramdisk/DriveCrypt encrypted devices
1088		  0 = /dev/scramdisk/master    Master node for ioctls
1089		  1 = /dev/scramdisk/1         First encrypted device
1090		  2 = /dev/scramdisk/2         Second encrypted device
1091		  ...
1092		255 = /dev/scramdisk/255       255th encrypted device
1093
1094		The filename of the encrypted container and the passwords
1095		are sent via ioctls (using the sdmount tool) to the master
1096		node which then activates them via one of the
1097		/dev/scramdisk/x nodes for loop mounting (all handled
1098		through the sdmount tool).
1099
1100		Requested by: andy@scramdisklinux.org
1101
1102  65 char	Sundance "plink" Transputer boards (obsolete, unused)
1103		  0 = /dev/plink0	First plink device
1104		  1 = /dev/plink1	Second plink device
1105		  2 = /dev/plink2	Third plink device
1106		  3 = /dev/plink3	Fourth plink device
1107		 64 = /dev/rplink0	First plink device, raw
1108		 65 = /dev/rplink1	Second plink device, raw
1109		 66 = /dev/rplink2	Third plink device, raw
1110		 67 = /dev/rplink3	Fourth plink device, raw
1111		128 = /dev/plink0d	First plink device, debug
1112		129 = /dev/plink1d	Second plink device, debug
1113		130 = /dev/plink2d	Third plink device, debug
1114		131 = /dev/plink3d	Fourth plink device, debug
1115		192 = /dev/rplink0d	First plink device, raw, debug
1116		193 = /dev/rplink1d	Second plink device, raw, debug
1117		194 = /dev/rplink2d	Third plink device, raw, debug
1118		195 = /dev/rplink3d	Fourth plink device, raw, debug
1119
1120		This is a commercial driver; contact James Howes
1121		<jth@prosig.demon.co.uk> for information.
1122
1123  65 block	SCSI disk devices (16-31)
1124		  0 = /dev/sdq		17th SCSI disk whole disk
1125		 16 = /dev/sdr		18th SCSI disk whole disk
1126		 32 = /dev/sds		19th SCSI disk whole disk
1127		    ...
1128		240 = /dev/sdaf		32nd SCSI disk whole disk
1129
1130		Partitions are handled in the same way as for IDE
1131		disks (see major number 3) except that the limit on
1132		partitions is 15.
1133
1134  66 char	YARC PowerPC PCI coprocessor card
1135		  0 = /dev/yppcpci0	First YARC card
1136		  1 = /dev/yppcpci1	Second YARC card
1137		    ...
1138
1139  66 block	SCSI disk devices (32-47)
1140		  0 = /dev/sdag		33th SCSI disk whole disk
1141		 16 = /dev/sdah		34th SCSI disk whole disk
1142		 32 = /dev/sdai		35th SCSI disk whole disk
1143		    ...
1144		240 = /dev/sdav		48nd SCSI disk whole disk
1145
1146		Partitions are handled in the same way as for IDE
1147		disks (see major number 3) except that the limit on
1148		partitions is 15.
1149
1150  67 char	Coda network file system
1151		  0 = /dev/cfs0		Coda cache manager
1152
1153		See http://www.coda.cs.cmu.edu for information about Coda.
1154
1155  67 block	SCSI disk devices (48-63)
1156		  0 = /dev/sdaw		49th SCSI disk whole disk
1157		 16 = /dev/sdax		50th SCSI disk whole disk
1158		 32 = /dev/sday		51st SCSI disk whole disk
1159		    ...
1160		240 = /dev/sdbl		64th SCSI disk whole disk
1161
1162		Partitions are handled in the same way as for IDE
1163		disks (see major number 3) except that the limit on
1164		partitions is 15.
1165
1166  68 char	CAPI 2.0 interface
1167		  0 = /dev/capi20	Control device
1168		  1 = /dev/capi20.00	First CAPI 2.0 application
1169		  2 = /dev/capi20.01	Second CAPI 2.0 application
1170		    ...
1171		 20 = /dev/capi20.19	19th CAPI 2.0 application
1172
1173		ISDN CAPI 2.0 driver for use with CAPI 2.0
1174		applications; currently supports the AVM B1 card.
1175
1176  68 block	SCSI disk devices (64-79)
1177		  0 = /dev/sdbm		65th SCSI disk whole disk
1178		 16 = /dev/sdbn		66th SCSI disk whole disk
1179		 32 = /dev/sdbo		67th SCSI disk whole disk
1180		    ...
1181		240 = /dev/sdcb		80th SCSI disk whole disk
1182
1183		Partitions are handled in the same way as for IDE
1184		disks (see major number 3) except that the limit on
1185		partitions is 15.
1186
1187  69 char	MA16 numeric accelerator card
1188		  0 = /dev/ma16		Board memory access
1189
1190  69 block	SCSI disk devices (80-95)
1191		  0 = /dev/sdcc		81st SCSI disk whole disk
1192		 16 = /dev/sdcd		82nd SCSI disk whole disk
1193		 32 = /dev/sdce		83th SCSI disk whole disk
1194		    ...
1195		240 = /dev/sdcr		96th SCSI disk whole disk
1196
1197		Partitions are handled in the same way as for IDE
1198		disks (see major number 3) except that the limit on
1199		partitions is 15.
1200
1201  70 char	SpellCaster Protocol Services Interface
1202		  0 = /dev/apscfg	Configuration interface
1203		  1 = /dev/apsauth	Authentication interface
1204		  2 = /dev/apslog	Logging interface
1205		  3 = /dev/apsdbg	Debugging interface
1206		 64 = /dev/apsisdn	ISDN command interface
1207		 65 = /dev/apsasync	Async command interface
1208		128 = /dev/apsmon	Monitor interface
1209
1210  70 block	SCSI disk devices (96-111)
1211		  0 = /dev/sdcs		97th SCSI disk whole disk
1212		 16 = /dev/sdct		98th SCSI disk whole disk
1213		 32 = /dev/sdcu		99th SCSI disk whole disk
1214		    ...
1215		240 = /dev/sddh		112nd SCSI disk whole disk
1216
1217		Partitions are handled in the same way as for IDE
1218		disks (see major number 3) except that the limit on
1219		partitions is 15.
1220
1221  71 char	Computone IntelliPort II serial card
1222		  0 = /dev/ttyF0	IntelliPort II board 0, port 0
1223		  1 = /dev/ttyF1	IntelliPort II board 0, port 1
1224		    ...
1225		 63 = /dev/ttyF63	IntelliPort II board 0, port 63
1226		 64 = /dev/ttyF64	IntelliPort II board 1, port 0
1227		 65 = /dev/ttyF65	IntelliPort II board 1, port 1
1228		    ...
1229		127 = /dev/ttyF127	IntelliPort II board 1, port 63
1230		128 = /dev/ttyF128	IntelliPort II board 2, port 0
1231		129 = /dev/ttyF129	IntelliPort II board 2, port 1
1232		    ...
1233		191 = /dev/ttyF191	IntelliPort II board 2, port 63
1234		192 = /dev/ttyF192	IntelliPort II board 3, port 0
1235		193 = /dev/ttyF193	IntelliPort II board 3, port 1
1236		    ...
1237		255 = /dev/ttyF255	IntelliPort II board 3, port 63
1238
1239  71 block	SCSI disk devices (112-127)
1240		  0 = /dev/sddi		113th SCSI disk whole disk
1241		 16 = /dev/sddj		114th SCSI disk whole disk
1242		 32 = /dev/sddk		115th SCSI disk whole disk
1243		    ...
1244		240 = /dev/sddx		128th SCSI disk whole disk
1245
1246		Partitions are handled in the same way as for IDE
1247		disks (see major number 3) except that the limit on
1248		partitions is 15.
1249
1250  72 char	Computone IntelliPort II serial card - alternate devices
1251		  0 = /dev/cuf0		Callout device for ttyF0
1252		  1 = /dev/cuf1		Callout device for ttyF1
1253		    ...
1254		 63 = /dev/cuf63	Callout device for ttyF63
1255		 64 = /dev/cuf64	Callout device for ttyF64
1256		 65 = /dev/cuf65	Callout device for ttyF65
1257		    ...
1258		127 = /dev/cuf127	Callout device for ttyF127
1259		128 = /dev/cuf128	Callout device for ttyF128
1260		129 = /dev/cuf129	Callout device for ttyF129
1261		    ...
1262		191 = /dev/cuf191	Callout device for ttyF191
1263		192 = /dev/cuf192	Callout device for ttyF192
1264		193 = /dev/cuf193	Callout device for ttyF193
1265		    ...
1266		255 = /dev/cuf255	Callout device for ttyF255
1267
1268  72 block	Compaq Intelligent Drive Array, first controller
1269		  0 = /dev/ida/c0d0	First logical drive whole disk
1270		 16 = /dev/ida/c0d1	Second logical drive whole disk
1271		    ...
1272		240 = /dev/ida/c0d15	16th logical drive whole disk
1273
1274		Partitions are handled the same way as for Mylex
1275		DAC960 (see major number 48) except that the limit on
1276		partitions is 15.
1277
1278  73 char	Computone IntelliPort II serial card - control devices
1279		  0 = /dev/ip2ipl0	Loadware device for board 0
1280		  1 = /dev/ip2stat0	Status device for board 0
1281		  4 = /dev/ip2ipl1	Loadware device for board 1
1282		  5 = /dev/ip2stat1	Status device for board 1
1283		  8 = /dev/ip2ipl2	Loadware device for board 2
1284		  9 = /dev/ip2stat2	Status device for board 2
1285		 12 = /dev/ip2ipl3	Loadware device for board 3
1286		 13 = /dev/ip2stat3	Status device for board 3
1287
1288  73 block	Compaq Intelligent Drive Array, second controller
1289		  0 = /dev/ida/c1d0	First logical drive whole disk
1290		 16 = /dev/ida/c1d1	Second logical drive whole disk
1291		    ...
1292		240 = /dev/ida/c1d15	16th logical drive whole disk
1293
1294		Partitions are handled the same way as for Mylex
1295		DAC960 (see major number 48) except that the limit on
1296		partitions is 15.
1297
1298  74 char	SCI bridge
1299		  0 = /dev/SCI/0	SCI device 0
1300		  1 = /dev/SCI/1	SCI device 1
1301		    ...
1302
1303		Currently for Dolphin Interconnect Solutions' PCI-SCI
1304		bridge.
1305
1306  74 block	Compaq Intelligent Drive Array, third controller
1307		  0 = /dev/ida/c2d0	First logical drive whole disk
1308		 16 = /dev/ida/c2d1	Second logical drive whole disk
1309		    ...
1310		240 = /dev/ida/c2d15	16th logical drive whole disk
1311
1312		Partitions are handled the same way as for Mylex
1313		DAC960 (see major number 48) except that the limit on
1314		partitions is 15.
1315
1316  75 char	Specialix IO8+ serial card
1317		  0 = /dev/ttyW0	First IO8+ port, first card
1318		  1 = /dev/ttyW1	Second IO8+ port, first card
1319		    ...
1320		  8 = /dev/ttyW8	First IO8+ port, second card
1321		    ...
1322
1323  75 block	Compaq Intelligent Drive Array, fourth controller
1324		  0 = /dev/ida/c3d0	First logical drive whole disk
1325		 16 = /dev/ida/c3d1	Second logical drive whole disk
1326		    ...
1327		240 = /dev/ida/c3d15	16th logical drive whole disk
1328
1329		Partitions are handled the same way as for Mylex
1330		DAC960 (see major number 48) except that the limit on
1331		partitions is 15.
1332
1333  76 char	Specialix IO8+ serial card - alternate devices
1334		  0 = /dev/cuw0		Callout device for ttyW0
1335		  1 = /dev/cuw1		Callout device for ttyW1
1336		    ...
1337		  8 = /dev/cuw8		Callout device for ttyW8
1338		    ...
1339
1340  76 block	Compaq Intelligent Drive Array, fifth controller
1341		  0 = /dev/ida/c4d0	First logical drive whole disk
1342		 16 = /dev/ida/c4d1	Second logical drive whole disk
1343		    ...
1344		240 = /dev/ida/c4d15	16th logical drive whole disk
1345
1346		Partitions are handled the same way as for Mylex
1347		DAC960 (see major number 48) except that the limit on
1348		partitions is 15.
1349
1350
1351  77 char	ComScire Quantum Noise Generator
1352		  0 = /dev/qng		ComScire Quantum Noise Generator
1353
1354  77 block	Compaq Intelligent Drive Array, sixth controller
1355		  0 = /dev/ida/c5d0	First logical drive whole disk
1356		 16 = /dev/ida/c5d1	Second logical drive whole disk
1357		    ...
1358		240 = /dev/ida/c5d15	16th logical drive whole disk
1359
1360		Partitions are handled the same way as for Mylex
1361		DAC960 (see major number 48) except that the limit on
1362		partitions is 15.
1363
1364  78 char	PAM Software's multimodem boards
1365		  0 = /dev/ttyM0	First PAM modem
1366		  1 = /dev/ttyM1	Second PAM modem
1367		    ...
1368
1369  78 block	Compaq Intelligent Drive Array, seventh controller
1370		  0 = /dev/ida/c6d0	First logical drive whole disk
1371		 16 = /dev/ida/c6d1	Second logical drive whole disk
1372		    ...
1373		240 = /dev/ida/c6d15	16th logical drive whole disk
1374
1375		Partitions are handled the same way as for Mylex
1376		DAC960 (see major number 48) except that the limit on
1377		partitions is 15.
1378
1379  79 char	PAM Software's multimodem boards - alternate devices
1380		  0 = /dev/cum0		Callout device for ttyM0
1381		  1 = /dev/cum1		Callout device for ttyM1
1382		    ...
1383
1384  79 block	Compaq Intelligent Drive Array, eighth controller
1385		  0 = /dev/ida/c7d0	First logical drive whole disk
1386		 16 = /dev/ida/c7d1	Second logical drive whole disk
1387		    ...
1388		240 = /dev/ida/c715	16th logical drive whole disk
1389
1390		Partitions are handled the same way as for Mylex
1391		DAC960 (see major number 48) except that the limit on
1392		partitions is 15.
1393
1394  80 char	Photometrics AT200 CCD camera
1395		  0 = /dev/at200	Photometrics AT200 CCD camera
1396
1397  80 block	I2O hard disk
1398		  0 = /dev/i2o/hda	First I2O hard disk, whole disk
1399		 16 = /dev/i2o/hdb	Second I2O hard disk, whole disk
1400		    ...
1401		240 = /dev/i2o/hdp	16th I2O hard disk, whole disk
1402
1403		Partitions are handled in the same way as for IDE
1404		disks (see major number 3) except that the limit on
1405		partitions is 15.
1406
1407  81 char	video4linux
1408		  0 = /dev/video0	Video capture/overlay device
1409		    ...
1410		 63 = /dev/video63	Video capture/overlay device
1411		 64 = /dev/radio0	Radio device
1412		    ...
1413		127 = /dev/radio63	Radio device
1414		128 = /dev/swradio0	Software Defined Radio device
1415		    ...
1416		191 = /dev/swradio63	Software Defined Radio device
1417		224 = /dev/vbi0		Vertical blank interrupt
1418		    ...
1419		255 = /dev/vbi31	Vertical blank interrupt
1420
1421		Minor numbers are allocated dynamically unless
1422		CONFIG_VIDEO_FIXED_MINOR_RANGES (default n)
1423		configuration option is set.
1424
1425  81 block	I2O hard disk
1426		  0 = /dev/i2o/hdq	17th I2O hard disk, whole disk
1427		 16 = /dev/i2o/hdr	18th I2O hard disk, whole disk
1428		    ...
1429		240 = /dev/i2o/hdaf	32nd I2O hard disk, whole disk
1430
1431		Partitions are handled in the same way as for IDE
1432		disks (see major number 3) except that the limit on
1433		partitions is 15.
1434
1435  82 char	WiNRADiO communications receiver card
1436		  0 = /dev/winradio0	First WiNRADiO card
1437		  1 = /dev/winradio1	Second WiNRADiO card
1438		    ...
1439
1440		The driver and documentation may be obtained from
1441		http://www.winradio.com/
1442
1443  82 block	I2O hard disk
1444		  0 = /dev/i2o/hdag	33rd I2O hard disk, whole disk
1445		 16 = /dev/i2o/hdah	34th I2O hard disk, whole disk
1446		    ...
1447		240 = /dev/i2o/hdav	48th I2O hard disk, whole disk
1448
1449		Partitions are handled in the same way as for IDE
1450		disks (see major number 3) except that the limit on
1451		partitions is 15.
1452
1453  83 char	Matrox mga_vid video driver
1454		 0 = /dev/mga_vid0	1st video card
1455		 1 = /dev/mga_vid1	2nd video card
1456		 2 = /dev/mga_vid2	3rd video card
1457		  ...
1458		15 = /dev/mga_vid15	16th video card
1459
1460  83 block	I2O hard disk
1461		  0 = /dev/i2o/hdaw	49th I2O hard disk, whole disk
1462		 16 = /dev/i2o/hdax	50th I2O hard disk, whole disk
1463		    ...
1464		240 = /dev/i2o/hdbl	64th I2O hard disk, whole disk
1465
1466		Partitions are handled in the same way as for IDE
1467		disks (see major number 3) except that the limit on
1468		partitions is 15.
1469
1470  84 char	Ikon 1011[57] Versatec Greensheet Interface
1471		  0 = /dev/ihcp0	First Greensheet port
1472		  1 = /dev/ihcp1	Second Greensheet port
1473
1474  84 block	I2O hard disk
1475		  0 = /dev/i2o/hdbm	65th I2O hard disk, whole disk
1476		 16 = /dev/i2o/hdbn	66th I2O hard disk, whole disk
1477		    ...
1478		240 = /dev/i2o/hdcb	80th I2O hard disk, whole disk
1479
1480		Partitions are handled in the same way as for IDE
1481		disks (see major number 3) except that the limit on
1482		partitions is 15.
1483
1484  85 char	Linux/SGI shared memory input queue
1485		  0 = /dev/shmiq	Master shared input queue
1486		  1 = /dev/qcntl0	First device pushed
1487		  2 = /dev/qcntl1	Second device pushed
1488		    ...
1489
1490  85 block	I2O hard disk
1491		  0 = /dev/i2o/hdcc	81st I2O hard disk, whole disk
1492		 16 = /dev/i2o/hdcd	82nd I2O hard disk, whole disk
1493		    ...
1494		240 = /dev/i2o/hdcr	96th I2O hard disk, whole disk
1495
1496		Partitions are handled in the same way as for IDE
1497		disks (see major number 3) except that the limit on
1498		partitions is 15.
1499
1500  86 char	SCSI media changer
1501		  0 = /dev/sch0		First SCSI media changer
1502		  1 = /dev/sch1		Second SCSI media changer
1503		    ...
1504
1505  86 block	I2O hard disk
1506		  0 = /dev/i2o/hdcs	97th I2O hard disk, whole disk
1507		 16 = /dev/i2o/hdct	98th I2O hard disk, whole disk
1508		    ...
1509		240 = /dev/i2o/hddh	112th I2O hard disk, whole disk
1510
1511		Partitions are handled in the same way as for IDE
1512		disks (see major number 3) except that the limit on
1513		partitions is 15.
1514
1515  87 char	Sony Control-A1 stereo control bus
1516		  0 = /dev/controla0	First device on chain
1517		  1 = /dev/controla1	Second device on chain
1518		    ...
1519
1520  87 block	I2O hard disk
1521		  0 = /dev/i2o/hddi	113rd I2O hard disk, whole disk
1522		 16 = /dev/i2o/hddj	114th I2O hard disk, whole disk
1523		    ...
1524		240 = /dev/i2o/hddx	128th I2O hard disk, whole disk
1525
1526		Partitions are handled in the same way as for IDE
1527		disks (see major number 3) except that the limit on
1528		partitions is 15.
1529
1530  88 char	COMX synchronous serial card
1531		  0 = /dev/comx0	COMX channel 0
1532		  1 = /dev/comx1	COMX channel 1
1533		    ...
1534
1535  88 block	Seventh IDE hard disk/CD-ROM interface
1536		  0 = /dev/hdm		Master: whole disk (or CD-ROM)
1537		 64 = /dev/hdn		Slave: whole disk (or CD-ROM)
1538
1539		Partitions are handled the same way as for the first
1540		interface (see major number 3).
1541
1542  89 char	I2C bus interface
1543		  0 = /dev/i2c-0	First I2C adapter
1544		  1 = /dev/i2c-1	Second I2C adapter
1545		    ...
1546
1547  89 block	Eighth IDE hard disk/CD-ROM interface
1548		  0 = /dev/hdo		Master: whole disk (or CD-ROM)
1549		 64 = /dev/hdp		Slave: whole disk (or CD-ROM)
1550
1551		Partitions are handled the same way as for the first
1552		interface (see major number 3).
1553
1554  90 char	Memory Technology Device (RAM, ROM, Flash)
1555		  0 = /dev/mtd0		First MTD (rw)
1556		  1 = /dev/mtdr0	First MTD (ro)
1557		    ...
1558		 30 = /dev/mtd15	16th MTD (rw)
1559		 31 = /dev/mtdr15	16th MTD (ro)
1560
1561  90 block	Ninth IDE hard disk/CD-ROM interface
1562		  0 = /dev/hdq		Master: whole disk (or CD-ROM)
1563		 64 = /dev/hdr		Slave: whole disk (or CD-ROM)
1564
1565		Partitions are handled the same way as for the first
1566		interface (see major number 3).
1567
1568  91 char	CAN-Bus devices
1569		  0 = /dev/can0		First CAN-Bus controller
1570		  1 = /dev/can1		Second CAN-Bus controller
1571		    ...
1572
1573  91 block	Tenth IDE hard disk/CD-ROM interface
1574		  0 = /dev/hds		Master: whole disk (or CD-ROM)
1575		 64 = /dev/hdt		Slave: whole disk (or CD-ROM)
1576
1577		Partitions are handled the same way as for the first
1578		interface (see major number 3).
1579
1580  92 char	Reserved for ith Kommunikationstechnik MIC ISDN card
1581
1582  92 block	PPDD encrypted disk driver
1583		  0 = /dev/ppdd0	First encrypted disk
1584		  1 = /dev/ppdd1	Second encrypted disk
1585		    ...
1586
1587		Partitions are handled in the same way as for IDE
1588		disks (see major number 3) except that the limit on
1589		partitions is 15.
1590
1591  93 char
1592
1593  93 block	NAND Flash Translation Layer filesystem
1594		  0 = /dev/nftla	First NFTL layer
1595		 16 = /dev/nftlb	Second NFTL layer
1596		    ...
1597		240 = /dev/nftlp	16th NTFL layer
1598
1599  94 char
1600
1601  94 block	IBM S/390 DASD block storage
1602		  0 = /dev/dasda First DASD device, major
1603		  1 = /dev/dasda1 First DASD device, block 1
1604		  2 = /dev/dasda2 First DASD device, block 2
1605		  3 = /dev/dasda3 First DASD device, block 3
1606		  4 = /dev/dasdb Second DASD device, major
1607		  5 = /dev/dasdb1 Second DASD device, block 1
1608		  6 = /dev/dasdb2 Second DASD device, block 2
1609		  7 = /dev/dasdb3 Second DASD device, block 3
1610		    ...
1611
1612  95 char	IP filter
1613		  0 = /dev/ipl		Filter control device/log file
1614		  1 = /dev/ipnat	NAT control device/log file
1615		  2 = /dev/ipstate	State information log file
1616		  3 = /dev/ipauth	Authentication control device/log file
1617		    ...
1618
1619  96 char	Parallel port ATAPI tape devices
1620		  0 = /dev/pt0		First parallel port ATAPI tape
1621		  1 = /dev/pt1		Second parallel port ATAPI tape
1622		    ...
1623		128 = /dev/npt0		First p.p. ATAPI tape, no rewind
1624		129 = /dev/npt1		Second p.p. ATAPI tape, no rewind
1625		    ...
1626
1627  96 block	Inverse NAND Flash Translation Layer
1628		  0 = /dev/inftla First INFTL layer
1629		 16 = /dev/inftlb Second INFTL layer
1630		    ...
1631		240 = /dev/inftlp	16th INTFL layer
1632
1633  97 char	Parallel port generic ATAPI interface
1634		  0 = /dev/pg0		First parallel port ATAPI device
1635		  1 = /dev/pg1		Second parallel port ATAPI device
1636		  2 = /dev/pg2		Third parallel port ATAPI device
1637		  3 = /dev/pg3		Fourth parallel port ATAPI device
1638
1639		These devices support the same API as the generic SCSI
1640		devices.
1641
1642  98 char	Control and Measurement Device (comedi)
1643		  0 = /dev/comedi0	First comedi device
1644		  1 = /dev/comedi1	Second comedi device
1645		    ...
1646
1647		See http://stm.lbl.gov/comedi.
1648
1649  98 block	User-mode virtual block device
1650		  0 = /dev/ubda		First user-mode block device
1651		 16 = /dev/udbb		Second user-mode block device
1652		    ...
1653
1654		Partitions are handled in the same way as for IDE
1655		disks (see major number 3) except that the limit on
1656		partitions is 15.
1657
1658		This device is used by the user-mode virtual kernel port.
1659
1660  99 char	Raw parallel ports
1661		  0 = /dev/parport0	First parallel port
1662		  1 = /dev/parport1	Second parallel port
1663		    ...
1664
1665  99 block	JavaStation flash disk
1666		  0 = /dev/jsfd		JavaStation flash disk
1667
1668 100 char	Telephony for Linux
1669		  0 = /dev/phone0	First telephony device
1670		  1 = /dev/phone1	Second telephony device
1671		    ...
1672
1673 101 char	Motorola DSP 56xxx board
1674		  0 = /dev/mdspstat	Status information
1675		  1 = /dev/mdsp1	First DSP board I/O controls
1676		    ...
1677		 16 = /dev/mdsp16	16th DSP board I/O controls
1678
1679 101 block	AMI HyperDisk RAID controller
1680		  0 = /dev/amiraid/ar0	First array whole disk
1681		 16 = /dev/amiraid/ar1	Second array whole disk
1682		    ...
1683		240 = /dev/amiraid/ar15	16th array whole disk
1684
1685		For each device, partitions are added as:
1686		  0 = /dev/amiraid/ar?	  Whole disk
1687		  1 = /dev/amiraid/ar?p1  First partition
1688		  2 = /dev/amiraid/ar?p2  Second partition
1689		    ...
1690		 15 = /dev/amiraid/ar?p15 15th partition
1691
1692 102 char
1693
1694 102 block	Compressed block device
1695		  0 = /dev/cbd/a	First compressed block device, whole device
1696		 16 = /dev/cbd/b	Second compressed block device, whole device
1697		    ...
1698		240 = /dev/cbd/p	16th compressed block device, whole device
1699
1700		Partitions are handled in the same way as for IDE
1701		disks (see major number 3) except that the limit on
1702		partitions is 15.
1703
1704 103 char	Arla network file system
1705		  0 = /dev/nnpfs0	First NNPFS device
1706		  1 = /dev/nnpfs1	Second NNPFS device
1707
1708		Arla is a free clone of the Andrew File System, AFS.
1709		The NNPFS device gives user mode filesystem
1710		implementations a kernel presence for caching and easy
1711		mounting.  For more information about the project,
1712		write to <arla-drinkers@stacken.kth.se> or see
1713		http://www.stacken.kth.se/project/arla/
1714
1715 103 block	Audit device
1716		  0 = /dev/audit	Audit device
1717
1718 104 char	Flash BIOS support
1719
1720 104 block	Compaq Next Generation Drive Array, first controller
1721		  0 = /dev/cciss/c0d0	First logical drive, whole disk
1722		 16 = /dev/cciss/c0d1	Second logical drive, whole disk
1723		    ...
1724		240 = /dev/cciss/c0d15	16th logical drive, whole disk
1725
1726		Partitions are handled the same way as for Mylex
1727		DAC960 (see major number 48) except that the limit on
1728		partitions is 15.
1729
1730 105 char	Comtrol VS-1000 serial controller
1731		  0 = /dev/ttyV0	First VS-1000 port
1732		  1 = /dev/ttyV1	Second VS-1000 port
1733		    ...
1734
1735 105 block	Compaq Next Generation Drive Array, second controller
1736		  0 = /dev/cciss/c1d0	First logical drive, whole disk
1737		 16 = /dev/cciss/c1d1	Second logical drive, whole disk
1738		    ...
1739		240 = /dev/cciss/c1d15	16th logical drive, whole disk
1740
1741		Partitions are handled the same way as for Mylex
1742		DAC960 (see major number 48) except that the limit on
1743		partitions is 15.
1744
1745 106 char	Comtrol VS-1000 serial controller - alternate devices
1746		  0 = /dev/cuv0		First VS-1000 port
1747		  1 = /dev/cuv1		Second VS-1000 port
1748		    ...
1749
1750 106 block	Compaq Next Generation Drive Array, third controller
1751		  0 = /dev/cciss/c2d0	First logical drive, whole disk
1752		 16 = /dev/cciss/c2d1	Second logical drive, whole disk
1753		    ...
1754		240 = /dev/cciss/c2d15	16th logical drive, whole disk
1755
1756		Partitions are handled the same way as for Mylex
1757		DAC960 (see major number 48) except that the limit on
1758		partitions is 15.
1759
1760 107 char	3Dfx Voodoo Graphics device
1761		  0 = /dev/3dfx		Primary 3Dfx graphics device
1762
1763 107 block	Compaq Next Generation Drive Array, fourth controller
1764		  0 = /dev/cciss/c3d0	First logical drive, whole disk
1765		 16 = /dev/cciss/c3d1	Second logical drive, whole disk
1766		    ...
1767		240 = /dev/cciss/c3d15	16th logical drive, whole disk
1768
1769		Partitions are handled the same way as for Mylex
1770		DAC960 (see major number 48) except that the limit on
1771		partitions is 15.
1772
1773 108 char	Device independent PPP interface
1774		  0 = /dev/ppp		Device independent PPP interface
1775
1776 108 block	Compaq Next Generation Drive Array, fifth controller
1777		  0 = /dev/cciss/c4d0	First logical drive, whole disk
1778		 16 = /dev/cciss/c4d1	Second logical drive, whole disk
1779		    ...
1780		240 = /dev/cciss/c4d15	16th logical drive, whole disk
1781
1782		Partitions are handled the same way as for Mylex
1783		DAC960 (see major number 48) except that the limit on
1784		partitions is 15.
1785
1786 109 char	Reserved for logical volume manager
1787
1788 109 block	Compaq Next Generation Drive Array, sixth controller
1789		  0 = /dev/cciss/c5d0	First logical drive, whole disk
1790		 16 = /dev/cciss/c5d1	Second logical drive, whole disk
1791		    ...
1792		240 = /dev/cciss/c5d15	16th logical drive, whole disk
1793
1794		Partitions are handled the same way as for Mylex
1795		DAC960 (see major number 48) except that the limit on
1796		partitions is 15.
1797
1798 110 char	miroMEDIA Surround board
1799		  0 = /dev/srnd0	First miroMEDIA Surround board
1800		  1 = /dev/srnd1	Second miroMEDIA Surround board
1801		    ...
1802
1803 110 block	Compaq Next Generation Drive Array, seventh controller
1804		  0 = /dev/cciss/c6d0	First logical drive, whole disk
1805		 16 = /dev/cciss/c6d1	Second logical drive, whole disk
1806		    ...
1807		240 = /dev/cciss/c6d15	16th logical drive, whole disk
1808
1809		Partitions are handled the same way as for Mylex
1810		DAC960 (see major number 48) except that the limit on
1811		partitions is 15.
1812
1813 111 char
1814
1815 111 block	Compaq Next Generation Drive Array, eighth controller
1816		  0 = /dev/cciss/c7d0	First logical drive, whole disk
1817		 16 = /dev/cciss/c7d1	Second logical drive, whole disk
1818		    ...
1819		240 = /dev/cciss/c7d15	16th logical drive, whole disk
1820
1821		Partitions are handled the same way as for Mylex
1822		DAC960 (see major number 48) except that the limit on
1823		partitions is 15.
1824
1825 112 char	ISI serial card
1826		  0 = /dev/ttyM0	First ISI port
1827		  1 = /dev/ttyM1	Second ISI port
1828		    ...
1829
1830		There is currently a device-naming conflict between
1831		these and PAM multimodems (major 78).
1832
1833 112 block	IBM iSeries virtual disk
1834		  0 = /dev/iseries/vda	First virtual disk, whole disk
1835		  8 = /dev/iseries/vdb	Second virtual disk, whole disk
1836		    ...
1837		200 = /dev/iseries/vdz	26th virtual disk, whole disk
1838		208 = /dev/iseries/vdaa	27th virtual disk, whole disk
1839		    ...
1840		248 = /dev/iseries/vdaf	32nd virtual disk, whole disk
1841
1842		Partitions are handled in the same way as for IDE
1843		disks (see major number 3) except that the limit on
1844		partitions is 7.
1845
1846 113 char	ISI serial card - alternate devices
1847		  0 = /dev/cum0		Callout device for ttyM0
1848		  1 = /dev/cum1		Callout device for ttyM1
1849		    ...
1850
1851 113 block	IBM iSeries virtual CD-ROM
1852		  0 = /dev/iseries/vcda	First virtual CD-ROM
1853		  1 = /dev/iseries/vcdb	Second virtual CD-ROM
1854		    ...
1855
1856 114 char	Picture Elements ISE board
1857		  0 = /dev/ise0		First ISE board
1858		  1 = /dev/ise1		Second ISE board
1859		    ...
1860		128 = /dev/isex0	Control node for first ISE board
1861		129 = /dev/isex1	Control node for second ISE board
1862		    ...
1863
1864		The ISE board is an embedded computer, optimized for
1865		image processing. The /dev/iseN nodes are the general
1866		I/O access to the board, the /dev/isex0 nodes command
1867		nodes used to control the board.
1868
1869 114 block       IDE BIOS powered software RAID interfaces such as the
1870		Promise Fastrak
1871
1872		   0 = /dev/ataraid/d0
1873		   1 = /dev/ataraid/d0p1
1874		   2 = /dev/ataraid/d0p2
1875		  ...
1876		  16 = /dev/ataraid/d1
1877		  17 = /dev/ataraid/d1p1
1878		  18 = /dev/ataraid/d1p2
1879		  ...
1880		 255 = /dev/ataraid/d15p15
1881
1882		Partitions are handled in the same way as for IDE
1883		disks (see major number 3) except that the limit on
1884		partitions is 15.
1885
1886 115 char	TI link cable devices (115 was formerly the console driver speaker)
1887		  0 = /dev/tipar0    Parallel cable on first parallel port
1888		  ...
1889		  7 = /dev/tipar7    Parallel cable on seventh parallel port
1890
1891		  8 = /dev/tiser0    Serial cable on first serial port
1892		  ...
1893		 15 = /dev/tiser7    Serial cable on seventh serial port
1894
1895		 16 = /dev/tiusb0    First USB cable
1896		  ...
1897		 47 = /dev/tiusb31   32nd USB cable
1898
1899 115 block       NetWare (NWFS) Devices (0-255)
1900
1901		The NWFS (NetWare) devices are used to present a
1902		collection of NetWare Mirror Groups or NetWare
1903		Partitions as a logical storage segment for
1904		use in mounting NetWare volumes.  A maximum of
1905		 256 NetWare volumes can be supported in a single
1906		machine.
1907
1908		http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
1909
1910		 0 = /dev/nwfs/v0    First NetWare (NWFS) Logical Volume
1911		 1 = /dev/nwfs/v1    Second NetWare (NWFS) Logical Volume
1912		 2 = /dev/nwfs/v2    Third NetWare (NWFS) Logical Volume
1913		      ...
1914		 255 = /dev/nwfs/v255    Last NetWare (NWFS) Logical Volume
1915
1916 116 char	Advanced Linux Sound Driver (ALSA)
1917
1918 116 block       MicroMemory battery backed RAM adapter (NVRAM)
1919		Supports 16 boards, 15 partitions each.
1920		Requested by neilb at cse.unsw.edu.au.
1921
1922		 0 = /dev/umem/d0      Whole of first board
1923		 1 = /dev/umem/d0p1    First partition of first board
1924		 2 = /dev/umem/d0p2    Second partition of first board
1925		15 = /dev/umem/d0p15   15th partition of first board
1926
1927		16 = /dev/umem/d1      Whole of second board
1928		17 = /dev/umem/d1p1    First partition of second board
1929		    ...
1930		255= /dev/umem/d15p15  15th partition of 16th board.
1931
1932 117 char	COSA/SRP synchronous serial card
1933		  0 = /dev/cosa0c0	1st board, 1st channel
1934		  1 = /dev/cosa0c1	1st board, 2nd channel
1935		    ...
1936		 16 = /dev/cosa1c0	2nd board, 1st channel
1937		 17 = /dev/cosa1c1	2nd board, 2nd channel
1938		    ...
1939
1940 117 block       Enterprise Volume Management System (EVMS)
1941
1942		The EVMS driver uses a layered, plug-in model to provide
1943		unparalleled flexibility and extensibility in managing
1944		storage.  This allows for easy expansion or customization
1945		of various levels of volume management.  Requested by
1946		Mark Peloquin (peloquin at us.ibm.com).
1947
1948		Note: EVMS populates and manages all the devnodes in
1949		/dev/evms.
1950
1951		http://sf.net/projects/evms
1952
1953		   0 = /dev/evms/block_device   EVMS block device
1954		   1 = /dev/evms/legacyname1    First EVMS legacy device
1955		   2 = /dev/evms/legacyname2    Second EVMS legacy device
1956		    ...
1957		    Both ranges can grow (down or up) until they meet.
1958		    ...
1959		 254 = /dev/evms/EVMSname2      Second EVMS native device
1960		 255 = /dev/evms/EVMSname1      First EVMS native device
1961
1962		Note: legacyname(s) are derived from the normal legacy
1963		device names.  For example, /dev/hda5 would become
1964		/dev/evms/hda5.
1965
1966 118 char	IBM Cryptographic Accelerator
1967		  0 = /dev/ica	Virtual interface to all IBM Crypto Accelerators
1968		  1 = /dev/ica0	IBMCA Device 0
1969		  2 = /dev/ica1	IBMCA Device 1
1970		    ...
1971
1972 119 char	VMware virtual network control
1973		  0 = /dev/vnet0	1st virtual network
1974		  1 = /dev/vnet1	2nd virtual network
1975		    ...
1976
1977 120-127 char	LOCAL/EXPERIMENTAL USE
1978
1979 120-127 block	LOCAL/EXPERIMENTAL USE
1980		Allocated for local/experimental use.  For devices not
1981		assigned official numbers, these ranges should be
1982		used in order to avoid conflicting with future assignments.
1983
1984 128-135 char	Unix98 PTY masters
1985
1986		These devices should not have corresponding device
1987		nodes; instead they should be accessed through the
1988		/dev/ptmx cloning interface.
1989
1990 128 block       SCSI disk devices (128-143)
1991		   0 = /dev/sddy         129th SCSI disk whole disk
1992		  16 = /dev/sddz         130th SCSI disk whole disk
1993		  32 = /dev/sdea         131th SCSI disk whole disk
1994		    ...
1995		 240 = /dev/sden         144th SCSI disk whole disk
1996
1997		Partitions are handled in the same way as for IDE
1998		disks (see major number 3) except that the limit on
1999		partitions is 15.
2000
2001 129 block       SCSI disk devices (144-159)
2002		   0 = /dev/sdeo         145th SCSI disk whole disk
2003		  16 = /dev/sdep         146th SCSI disk whole disk
2004		  32 = /dev/sdeq         147th SCSI disk whole disk
2005		    ...
2006		 240 = /dev/sdfd         160th SCSI disk whole disk
2007
2008		Partitions are handled in the same way as for IDE
2009		disks (see major number 3) except that the limit on
2010		partitions is 15.
2011
2012 130 char 	(Misc devices)
2013
2014 130 block       SCSI disk devices (160-175)
2015		   0 = /dev/sdfe         161st SCSI disk whole disk
2016		  16 = /dev/sdff         162nd SCSI disk whole disk
2017		  32 = /dev/sdfg         163rd SCSI disk whole disk
2018		    ...
2019		 240 = /dev/sdft         176th SCSI disk whole disk
2020
2021		Partitions are handled in the same way as for IDE
2022		disks (see major number 3) except that the limit on
2023		partitions is 15.
2024
2025 131 block       SCSI disk devices (176-191)
2026		   0 = /dev/sdfu         177th SCSI disk whole disk
2027		  16 = /dev/sdfv         178th SCSI disk whole disk
2028		  32 = /dev/sdfw         179th SCSI disk whole disk
2029		    ...
2030		 240 = /dev/sdgj         192nd SCSI disk whole disk
2031
2032		Partitions are handled in the same way as for IDE
2033		disks (see major number 3) except that the limit on
2034		partitions is 15.
2035
2036 132 block       SCSI disk devices (192-207)
2037		   0 = /dev/sdgk         193rd SCSI disk whole disk
2038		  16 = /dev/sdgl         194th SCSI disk whole disk
2039		  32 = /dev/sdgm         195th SCSI disk whole disk
2040		    ...
2041		 240 = /dev/sdgz         208th SCSI disk whole disk
2042
2043		Partitions are handled in the same way as for IDE
2044		disks (see major number 3) except that the limit on
2045		partitions is 15.
2046
2047 133 block       SCSI disk devices (208-223)
2048		   0 = /dev/sdha         209th SCSI disk whole disk
2049		  16 = /dev/sdhb         210th SCSI disk whole disk
2050		  32 = /dev/sdhc         211th SCSI disk whole disk
2051		    ...
2052		 240 = /dev/sdhp         224th SCSI disk whole disk
2053
2054		Partitions are handled in the same way as for IDE
2055		disks (see major number 3) except that the limit on
2056		partitions is 15.
2057
2058 134 block       SCSI disk devices (224-239)
2059		   0 = /dev/sdhq         225th SCSI disk whole disk
2060		  16 = /dev/sdhr         226th SCSI disk whole disk
2061		  32 = /dev/sdhs         227th SCSI disk whole disk
2062		    ...
2063		 240 = /dev/sdif         240th SCSI disk whole disk
2064
2065		Partitions are handled in the same way as for IDE
2066		disks (see major number 3) except that the limit on
2067		partitions is 15.
2068
2069 135 block       SCSI disk devices (240-255)
2070		   0 = /dev/sdig         241st SCSI disk whole disk
2071		  16 = /dev/sdih         242nd SCSI disk whole disk
2072		  32 = /dev/sdih         243rd SCSI disk whole disk
2073		    ...
2074		 240 = /dev/sdiv         256th SCSI disk whole disk
2075
2076		Partitions are handled in the same way as for IDE
2077		disks (see major number 3) except that the limit on
2078		partitions is 15.
2079
2080 136-143 char	Unix98 PTY slaves
2081		  0 = /dev/pts/0	First Unix98 pseudo-TTY
2082		  1 = /dev/pts/1	Second Unix98 pseudo-TTY
2083		    ...
2084
2085		These device nodes are automatically generated with
2086		the proper permissions and modes by mounting the
2087		devpts filesystem onto /dev/pts with the appropriate
2088		mount options (distribution dependent, however, on
2089		*most* distributions the appropriate options are
2090		"mode=0620,gid=<gid of the "tty" group>".)
2091
2092 136 block	Mylex DAC960 PCI RAID controller; ninth controller
2093		  0 = /dev/rd/c8d0	First disk, whole disk
2094		  8 = /dev/rd/c8d1	Second disk, whole disk
2095		    ...
2096		248 = /dev/rd/c8d31	32nd disk, whole disk
2097
2098		Partitions are handled as for major 48.
2099
2100 137 block	Mylex DAC960 PCI RAID controller; tenth controller
2101		  0 = /dev/rd/c9d0	First disk, whole disk
2102		  8 = /dev/rd/c9d1	Second disk, whole disk
2103		    ...
2104		248 = /dev/rd/c9d31	32nd disk, whole disk
2105
2106		Partitions are handled as for major 48.
2107
2108 138 block	Mylex DAC960 PCI RAID controller; eleventh controller
2109		  0 = /dev/rd/c10d0	First disk, whole disk
2110		  8 = /dev/rd/c10d1	Second disk, whole disk
2111		    ...
2112		248 = /dev/rd/c10d31	32nd disk, whole disk
2113
2114		Partitions are handled as for major 48.
2115
2116 139 block	Mylex DAC960 PCI RAID controller; twelfth controller
2117		  0 = /dev/rd/c11d0	First disk, whole disk
2118		  8 = /dev/rd/c11d1	Second disk, whole disk
2119		    ...
2120		248 = /dev/rd/c11d31	32nd disk, whole disk
2121
2122		Partitions are handled as for major 48.
2123
2124 140 block	Mylex DAC960 PCI RAID controller; thirteenth controller
2125		  0 = /dev/rd/c12d0	First disk, whole disk
2126		  8 = /dev/rd/c12d1	Second disk, whole disk
2127		    ...
2128		248 = /dev/rd/c12d31	32nd disk, whole disk
2129
2130		Partitions are handled as for major 48.
2131
2132 141 block	Mylex DAC960 PCI RAID controller; fourteenth controller
2133		  0 = /dev/rd/c13d0	First disk, whole disk
2134		  8 = /dev/rd/c13d1	Second disk, whole disk
2135		    ...
2136		248 = /dev/rd/c13d31	32nd disk, whole disk
2137
2138		Partitions are handled as for major 48.
2139
2140 142 block	Mylex DAC960 PCI RAID controller; fifteenth controller
2141		  0 = /dev/rd/c14d0	First disk, whole disk
2142		  8 = /dev/rd/c14d1	Second disk, whole disk
2143		    ...
2144		248 = /dev/rd/c14d31	32nd disk, whole disk
2145
2146		Partitions are handled as for major 48.
2147
2148 143 block	Mylex DAC960 PCI RAID controller; sixteenth controller
2149		  0 = /dev/rd/c15d0	First disk, whole disk
2150		  8 = /dev/rd/c15d1	Second disk, whole disk
2151		    ...
2152		248 = /dev/rd/c15d31	32nd disk, whole disk
2153
2154		Partitions are handled as for major 48.
2155
2156 144 char	Encapsulated PPP
2157		  0 = /dev/pppox0	First PPP over Ethernet
2158		    ...
2159		 63 = /dev/pppox63	64th PPP over Ethernet
2160
2161		This is primarily used for ADSL.
2162
2163		The SST 5136-DN DeviceNet interface driver has been
2164		relocated to major 183 due to an unfortunate conflict.
2165
2166 144 block	Expansion Area #1 for more non-device (e.g. NFS) mounts
2167		  0 = mounted device 256
2168		255 = mounted device 511
2169
2170 145 char	SAM9407-based soundcard
2171		  0 = /dev/sam0_mixer
2172		  1 = /dev/sam0_sequencer
2173		  2 = /dev/sam0_midi00
2174		  3 = /dev/sam0_dsp
2175		  4 = /dev/sam0_audio
2176		  6 = /dev/sam0_sndstat
2177		 18 = /dev/sam0_midi01
2178		 34 = /dev/sam0_midi02
2179		 50 = /dev/sam0_midi03
2180		 64 = /dev/sam1_mixer
2181		    ...
2182		128 = /dev/sam2_mixer
2183		    ...
2184		192 = /dev/sam3_mixer
2185		    ...
2186
2187		Device functions match OSS, but offer a number of
2188		addons, which are sam9407 specific.  OSS can be
2189		operated simultaneously, taking care of the codec.
2190
2191 145 block	Expansion Area #2 for more non-device (e.g. NFS) mounts
2192		  0 = mounted device 512
2193		255 = mounted device 767
2194
2195 146 char	SYSTRAM SCRAMNet mirrored-memory network
2196		  0 = /dev/scramnet0	First SCRAMNet device
2197		  1 = /dev/scramnet1	Second SCRAMNet device
2198		    ...
2199
2200 146 block	Expansion Area #3 for more non-device (e.g. NFS) mounts
2201		  0 = mounted device 768
2202		255 = mounted device 1023
2203
2204 147 char	Aureal Semiconductor Vortex Audio device
2205		  0 = /dev/aureal0	First Aureal Vortex
2206		  1 = /dev/aureal1	Second Aureal Vortex
2207		    ...
2208
2209 147 block	Distributed Replicated Block Device (DRBD)
2210		  0 = /dev/drbd0	First DRBD device
2211		  1 = /dev/drbd1	Second DRBD device
2212		    ...
2213
2214 148 char	Technology Concepts serial card
2215		  0 = /dev/ttyT0	First TCL port
2216		  1 = /dev/ttyT1	Second TCL port
2217		    ...
2218
2219 149 char	Technology Concepts serial card - alternate devices
2220		  0 = /dev/cut0		Callout device for ttyT0
2221		  1 = /dev/cut0		Callout device for ttyT1
2222		    ...
2223
2224 150 char	Real-Time Linux FIFOs
2225		  0 = /dev/rtf0		First RTLinux FIFO
2226		  1 = /dev/rtf1		Second RTLinux FIFO
2227		    ...
2228
2229 151 char	DPT I2O SmartRaid V controller
2230		  0 = /dev/dpti0	First DPT I2O adapter
2231		  1 = /dev/dpti1	Second DPT I2O adapter
2232		    ...
2233
2234 152 char	EtherDrive Control Device
2235		  0 = /dev/etherd/ctl	Connect/Disconnect an EtherDrive
2236		  1 = /dev/etherd/err	Monitor errors
2237		  2 = /dev/etherd/raw	Raw AoE packet monitor
2238
2239 152 block	EtherDrive Block Devices
2240		  0 = /dev/etherd/0	EtherDrive 0
2241		    ...
2242		255 = /dev/etherd/255	EtherDrive 255
2243
2244 153 char	SPI Bus Interface (sometimes referred to as MicroWire)
2245		  0 = /dev/spi0		First SPI device on the bus
2246		  1 = /dev/spi1		Second SPI device on the bus
2247		    ...
2248		 15 = /dev/spi15	Sixteenth SPI device on the bus
2249
2250 153 block	Enhanced Metadisk RAID (EMD) storage units
2251		  0 = /dev/emd/0	First unit
2252		  1 = /dev/emd/0p1	Partition 1 on First unit
2253		  2 = /dev/emd/0p2	Partition 2 on First unit
2254		    ...
2255		 15 = /dev/emd/0p15	Partition 15 on First unit
2256
2257		 16 = /dev/emd/1	Second unit
2258		 32 = /dev/emd/2	Third unit
2259		    ...
2260		240 = /dev/emd/15	Sixteenth unit
2261
2262		Partitions are handled in the same way as for IDE
2263		disks (see major number 3) except that the limit on
2264		partitions is 15.
2265
2266 154 char	Specialix RIO serial card
2267		  0 = /dev/ttySR0	First RIO port
2268		    ...
2269		255 = /dev/ttySR255	256th RIO port
2270
2271 155 char	Specialix RIO serial card - alternate devices
2272		  0 = /dev/cusr0	Callout device for ttySR0
2273		    ...
2274		255 = /dev/cusr255	Callout device for ttySR255
2275
2276 156 char	Specialix RIO serial card
2277		  0 = /dev/ttySR256	257th RIO port
2278		    ...
2279		255 = /dev/ttySR511	512th RIO port
2280
2281 157 char	Specialix RIO serial card - alternate devices
2282		  0 = /dev/cusr256	Callout device for ttySR256
2283		    ...
2284		255 = /dev/cusr511	Callout device for ttySR511
2285
2286 158 char	Dialogic GammaLink fax driver
2287		  0 = /dev/gfax0	GammaLink channel 0
2288		  1 = /dev/gfax1	GammaLink channel 1
2289		    ...
2290
2291 159 char	RESERVED
2292
2293 159 block	RESERVED
2294
2295 160 char	General Purpose Instrument Bus (GPIB)
2296		  0 = /dev/gpib0	First GPIB bus
2297		  1 = /dev/gpib1	Second GPIB bus
2298		    ...
2299
2300 160 block       Carmel 8-port SATA Disks on First Controller
2301		  0 = /dev/carmel/0     SATA disk 0 whole disk
2302		  1 = /dev/carmel/0p1   SATA disk 0 partition 1
2303		    ...
2304		 31 = /dev/carmel/0p31  SATA disk 0 partition 31
2305
2306		 32 = /dev/carmel/1     SATA disk 1 whole disk
2307		 64 = /dev/carmel/2     SATA disk 2 whole disk
2308		    ...
2309		224 = /dev/carmel/7     SATA disk 7 whole disk
2310
2311		Partitions are handled in the same way as for IDE
2312		disks (see major number 3) except that the limit on
2313		partitions is 31.
2314
2315 161 char	IrCOMM devices (IrDA serial/parallel emulation)
2316		  0 = /dev/ircomm0	First IrCOMM device
2317		  1 = /dev/ircomm1	Second IrCOMM device
2318		    ...
2319		 16 = /dev/irlpt0	First IrLPT device
2320		 17 = /dev/irlpt1	Second IrLPT device
2321		    ...
2322
2323 161 block       Carmel 8-port SATA Disks on Second Controller
2324		  0 = /dev/carmel/8     SATA disk 8 whole disk
2325		  1 = /dev/carmel/8p1   SATA disk 8 partition 1
2326		    ...
2327		 31 = /dev/carmel/8p31  SATA disk 8 partition 31
2328
2329		 32 = /dev/carmel/9     SATA disk 9 whole disk
2330		 64 = /dev/carmel/10    SATA disk 10 whole disk
2331		    ...
2332		224 = /dev/carmel/15    SATA disk 15 whole disk
2333
2334		Partitions are handled in the same way as for IDE
2335		disks (see major number 3) except that the limit on
2336		partitions is 31.
2337
2338 162 char	Raw block device interface
2339		  0 = /dev/rawctl	Raw I/O control device
2340		  1 = /dev/raw/raw1	First raw I/O device
2341		  2 = /dev/raw/raw2	Second raw I/O device
2342		    ...
2343		 max minor number of raw device is set by kernel config
2344		 MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
2345
2346 163 char
2347
2348 164 char	Chase Research AT/PCI-Fast serial card
2349		  0 = /dev/ttyCH0	AT/PCI-Fast board 0, port 0
2350		    ...
2351		 15 = /dev/ttyCH15	AT/PCI-Fast board 0, port 15
2352		 16 = /dev/ttyCH16	AT/PCI-Fast board 1, port 0
2353		    ...
2354		 31 = /dev/ttyCH31	AT/PCI-Fast board 1, port 15
2355		 32 = /dev/ttyCH32	AT/PCI-Fast board 2, port 0
2356		    ...
2357		 47 = /dev/ttyCH47	AT/PCI-Fast board 2, port 15
2358		 48 = /dev/ttyCH48	AT/PCI-Fast board 3, port 0
2359		    ...
2360		 63 = /dev/ttyCH63	AT/PCI-Fast board 3, port 15
2361
2362 165 char	Chase Research AT/PCI-Fast serial card - alternate devices
2363		  0 = /dev/cuch0	Callout device for ttyCH0
2364		    ...
2365		 63 = /dev/cuch63	Callout device for ttyCH63
2366
2367 166 char	ACM USB modems
2368		  0 = /dev/ttyACM0	First ACM modem
2369		  1 = /dev/ttyACM1	Second ACM modem
2370		    ...
2371
2372 167 char	ACM USB modems - alternate devices
2373		  0 = /dev/cuacm0	Callout device for ttyACM0
2374		  1 = /dev/cuacm1	Callout device for ttyACM1
2375		    ...
2376
2377 168 char	Eracom CSA7000 PCI encryption adaptor
2378		  0 = /dev/ecsa0	First CSA7000
2379		  1 = /dev/ecsa1	Second CSA7000
2380		    ...
2381
2382 169 char	Eracom CSA8000 PCI encryption adaptor
2383		  0 = /dev/ecsa8-0	First CSA8000
2384		  1 = /dev/ecsa8-1	Second CSA8000
2385		    ...
2386
2387 170 char	AMI MegaRAC remote access controller
2388		  0 = /dev/megarac0	First MegaRAC card
2389		  1 = /dev/megarac1	Second MegaRAC card
2390		    ...
2391
2392 171 char	Reserved for IEEE 1394 (Firewire)
2393
2394 172 char	Moxa Intellio serial card
2395		  0 = /dev/ttyMX0	First Moxa port
2396		  1 = /dev/ttyMX1	Second Moxa port
2397		    ...
2398		127 = /dev/ttyMX127	128th Moxa port
2399		128 = /dev/moxactl	Moxa control port
2400
2401 173 char	Moxa Intellio serial card - alternate devices
2402		  0 = /dev/cumx0	Callout device for ttyMX0
2403		  1 = /dev/cumx1	Callout device for ttyMX1
2404		    ...
2405		127 = /dev/cumx127	Callout device for ttyMX127
2406
2407 174 char	SmartIO serial card
2408		  0 = /dev/ttySI0	First SmartIO port
2409		  1 = /dev/ttySI1	Second SmartIO port
2410		    ...
2411
2412 175 char	SmartIO serial card - alternate devices
2413		  0 = /dev/cusi0	Callout device for ttySI0
2414		  1 = /dev/cusi1	Callout device for ttySI1
2415		    ...
2416
2417 176 char	nCipher nFast PCI crypto accelerator
2418		  0 = /dev/nfastpci0	First nFast PCI device
2419		  1 = /dev/nfastpci1	First nFast PCI device
2420		    ...
2421
2422 177 char	TI PCILynx memory spaces
2423		  0 = /dev/pcilynx/aux0	 AUX space of first PCILynx card
2424		    ...
2425		 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2426		 16 = /dev/pcilynx/rom0	 ROM space of first PCILynx card
2427		    ...
2428		 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2429		 32 = /dev/pcilynx/ram0	 RAM space of first PCILynx card
2430		    ...
2431		 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2432
2433 178 char	Giganet cLAN1xxx virtual interface adapter
2434		  0 = /dev/clanvi0	First cLAN adapter
2435		  1 = /dev/clanvi1	Second cLAN adapter
2436		    ...
2437
2438 179 block       MMC block devices
2439		  0 = /dev/mmcblk0      First SD/MMC card
2440		  1 = /dev/mmcblk0p1    First partition on first MMC card
2441		  8 = /dev/mmcblk1      Second SD/MMC card
2442		    ...
2443
2444		The start of next SD/MMC card can be configured with
2445		CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe
2446		time using the mmcblk.perdev_minors option. That would
2447		bump the offset between each card to be the configured
2448		value instead of the default 8.
2449
2450 179 char	CCube DVXChip-based PCI products
2451		  0 = /dev/dvxirq0	First DVX device
2452		  1 = /dev/dvxirq1	Second DVX device
2453		    ...
2454
2455 180 char	USB devices
2456		  0 = /dev/usb/lp0	First USB printer
2457		    ...
2458		 15 = /dev/usb/lp15	16th USB printer
2459		 48 = /dev/usb/scanner0	First USB scanner
2460		    ...
2461		 63 = /dev/usb/scanner15 16th USB scanner
2462		 64 = /dev/usb/rio500	Diamond Rio 500
2463		 65 = /dev/usb/usblcd	USBLCD Interface (info@usblcd.de)
2464		 66 = /dev/usb/cpad0	Synaptics cPad (mouse/LCD)
2465		 96 = /dev/usb/hiddev0	1st USB HID device
2466		    ...
2467		111 = /dev/usb/hiddev15	16th USB HID device
2468		112 = /dev/usb/auer0	1st auerswald ISDN device
2469		    ...
2470		127 = /dev/usb/auer15	16th auerswald ISDN device
2471		128 = /dev/usb/brlvgr0	First Braille Voyager device
2472		    ...
2473		131 = /dev/usb/brlvgr3	Fourth Braille Voyager device
2474		132 = /dev/usb/idmouse	ID Mouse (fingerprint scanner) device
2475		133 = /dev/usb/sisusbvga1	First SiSUSB VGA device
2476		    ...
2477		140 = /dev/usb/sisusbvga8	Eighth SISUSB VGA device
2478		144 = /dev/usb/lcd	USB LCD device
2479		160 = /dev/usb/legousbtower0	1st USB Legotower device
2480		    ...
2481		175 = /dev/usb/legousbtower15	16th USB Legotower device
2482		176 = /dev/usb/usbtmc1	First USB TMC device
2483		   ...
2484		191 = /dev/usb/usbtmc16	16th USB TMC device
2485		192 = /dev/usb/yurex1	First USB Yurex device
2486		   ...
2487		209 = /dev/usb/yurex16	16th USB Yurex device
2488
2489 180 block	USB block devices
2490		  0 = /dev/uba		First USB block device
2491		  8 = /dev/ubb		Second USB block device
2492		 16 = /dev/ubc		Third USB block device
2493		    ...
2494
2495 181 char	Conrad Electronic parallel port radio clocks
2496		  0 = /dev/pcfclock0	First Conrad radio clock
2497		  1 = /dev/pcfclock1	Second Conrad radio clock
2498		    ...
2499
2500 182 char	Picture Elements THR2 binarizer
2501		  0 = /dev/pethr0	First THR2 board
2502		  1 = /dev/pethr1	Second THR2 board
2503		    ...
2504
2505 183 char	SST 5136-DN DeviceNet interface
2506		  0 = /dev/ss5136dn0	First DeviceNet interface
2507		  1 = /dev/ss5136dn1	Second DeviceNet interface
2508		    ...
2509
2510		This device used to be assigned to major number 144.
2511		It had to be moved due to an unfortunate conflict.
2512
2513 184 char	Picture Elements' video simulator/sender
2514		  0 = /dev/pevss0	First sender board
2515		  1 = /dev/pevss1	Second sender board
2516		    ...
2517
2518 185 char	InterMezzo high availability file system
2519		  0 = /dev/intermezzo0	First cache manager
2520		  1 = /dev/intermezzo1	Second cache manager
2521		    ...
2522
2523		See http://web.archive.org/web/20080115195241/
2524		http://inter-mezzo.org/index.html
2525
2526 186 char	Object-based storage control device
2527		  0 = /dev/obd0		First obd control device
2528		  1 = /dev/obd1		Second obd control device
2529		    ...
2530
2531		See ftp://ftp.lustre.org/pub/obd for code and information.
2532
2533 187 char	DESkey hardware encryption device
2534		  0 = /dev/deskey0	First DES key
2535		  1 = /dev/deskey1	Second DES key
2536		    ...
2537
2538 188 char	USB serial converters
2539		  0 = /dev/ttyUSB0	First USB serial converter
2540		  1 = /dev/ttyUSB1	Second USB serial converter
2541		    ...
2542
2543 189 char	USB serial converters - alternate devices
2544		  0 = /dev/cuusb0	Callout device for ttyUSB0
2545		  1 = /dev/cuusb1	Callout device for ttyUSB1
2546		    ...
2547
2548 190 char	Kansas City tracker/tuner card
2549		  0 = /dev/kctt0	First KCT/T card
2550		  1 = /dev/kctt1	Second KCT/T card
2551		    ...
2552
2553 191 char	Reserved for PCMCIA
2554
2555 192 char	Kernel profiling interface
2556		  0 = /dev/profile	Profiling control device
2557		  1 = /dev/profile0	Profiling device for CPU 0
2558		  2 = /dev/profile1	Profiling device for CPU 1
2559		    ...
2560
2561 193 char	Kernel event-tracing interface
2562		  0 = /dev/trace	Tracing control device
2563		  1 = /dev/trace0	Tracing device for CPU 0
2564		  2 = /dev/trace1	Tracing device for CPU 1
2565		    ...
2566
2567 194 char	linVideoStreams (LINVS)
2568		  0 = /dev/mvideo/status0	Video compression status
2569		  1 = /dev/mvideo/stream0	Video stream
2570		  2 = /dev/mvideo/frame0	Single compressed frame
2571		  3 = /dev/mvideo/rawframe0	Raw uncompressed frame
2572		  4 = /dev/mvideo/codec0	Direct codec access
2573		  5 = /dev/mvideo/video4linux0	Video4Linux compatibility
2574
2575		 16 = /dev/mvideo/status1	Second device
2576		    ...
2577		 32 = /dev/mvideo/status2	Third device
2578		    ...
2579		    ...
2580		240 = /dev/mvideo/status15	16th device
2581		    ...
2582
2583 195 char	Nvidia graphics devices
2584		  0 = /dev/nvidia0		First Nvidia card
2585		  1 = /dev/nvidia1		Second Nvidia card
2586		    ...
2587		255 = /dev/nvidiactl		Nvidia card control device
2588
2589 196 char	Tormenta T1 card
2590		  0 = /dev/tor/0		Master control channel for all cards
2591		  1 = /dev/tor/1		First DS0
2592		  2 = /dev/tor/2		Second DS0
2593		    ...
2594		 48 = /dev/tor/48		48th DS0
2595		 49 = /dev/tor/49		First pseudo-channel
2596		 50 = /dev/tor/50		Second pseudo-channel
2597		    ...
2598
2599 197 char	OpenTNF tracing facility
2600		  0 = /dev/tnf/t0		Trace 0 data extraction
2601		  1 = /dev/tnf/t1		Trace 1 data extraction
2602		    ...
2603		128 = /dev/tnf/status		Tracing facility status
2604		130 = /dev/tnf/trace		Tracing device
2605
2606 198 char	Total Impact TPMP2 quad coprocessor PCI card
2607		  0 = /dev/tpmp2/0		First card
2608		  1 = /dev/tpmp2/1		Second card
2609		    ...
2610
2611 199 char	Veritas volume manager (VxVM) volumes
2612		  0 = /dev/vx/rdsk/*/*		First volume
2613		  1 = /dev/vx/rdsk/*/*		Second volume
2614		    ...
2615
2616 199 block	Veritas volume manager (VxVM) volumes
2617		  0 = /dev/vx/dsk/*/*		First volume
2618		  1 = /dev/vx/dsk/*/*		Second volume
2619		    ...
2620
2621		The namespace in these directories is maintained by
2622		the user space VxVM software.
2623
2624 200 char	Veritas VxVM configuration interface
2625		   0 = /dev/vx/config		Configuration access node
2626		   1 = /dev/vx/trace		Volume i/o trace access node
2627		   2 = /dev/vx/iod		Volume i/o daemon access node
2628		   3 = /dev/vx/info		Volume information access node
2629		   4 = /dev/vx/task		Volume tasks access node
2630		   5 = /dev/vx/taskmon		Volume tasks monitor daemon
2631
2632 201 char	Veritas VxVM dynamic multipathing driver
2633		  0 = /dev/vx/rdmp/*		First multipath device
2634		  1 = /dev/vx/rdmp/*		Second multipath device
2635		    ...
2636 201 block	Veritas VxVM dynamic multipathing driver
2637		  0 = /dev/vx/dmp/*		First multipath device
2638		  1 = /dev/vx/dmp/*		Second multipath device
2639		    ...
2640
2641		The namespace in these directories is maintained by
2642		the user space VxVM software.
2643
2644 202 char	CPU model-specific registers
2645		  0 = /dev/cpu/0/msr		MSRs on CPU 0
2646		  1 = /dev/cpu/1/msr		MSRs on CPU 1
2647		    ...
2648
2649 202 block	Xen Virtual Block Device
2650		  0 = /dev/xvda       First Xen VBD whole disk
2651		  16 = /dev/xvdb      Second Xen VBD whole disk
2652		  32 = /dev/xvdc      Third Xen VBD whole disk
2653		    ...
2654		  240 = /dev/xvdp     Sixteenth Xen VBD whole disk
2655
2656		Partitions are handled in the same way as for IDE
2657		disks (see major number 3) except that the limit on
2658		partitions is 15.
2659
2660 203 char	CPU CPUID information
2661		  0 = /dev/cpu/0/cpuid		CPUID on CPU 0
2662		  1 = /dev/cpu/1/cpuid		CPUID on CPU 1
2663		    ...
2664
2665 204 char	Low-density serial ports
2666		  0 = /dev/ttyLU0		LinkUp Systems L72xx UART - port 0
2667		  1 = /dev/ttyLU1		LinkUp Systems L72xx UART - port 1
2668		  2 = /dev/ttyLU2		LinkUp Systems L72xx UART - port 2
2669		  3 = /dev/ttyLU3		LinkUp Systems L72xx UART - port 3
2670		  4 = /dev/ttyFB0		Intel Footbridge (ARM)
2671		  5 = /dev/ttySA0		StrongARM builtin serial port 0
2672		  6 = /dev/ttySA1		StrongARM builtin serial port 1
2673		  7 = /dev/ttySA2		StrongARM builtin serial port 2
2674		  8 = /dev/ttySC0		SCI serial port (SuperH) - port 0
2675		  9 = /dev/ttySC1		SCI serial port (SuperH) - port 1
2676		 10 = /dev/ttySC2		SCI serial port (SuperH) - port 2
2677		 11 = /dev/ttySC3		SCI serial port (SuperH) - port 3
2678		 12 = /dev/ttyFW0		Firmware console - port 0
2679		 13 = /dev/ttyFW1		Firmware console - port 1
2680		 14 = /dev/ttyFW2		Firmware console - port 2
2681		 15 = /dev/ttyFW3		Firmware console - port 3
2682		 16 = /dev/ttyAM0		ARM "AMBA" serial port 0
2683		    ...
2684		 31 = /dev/ttyAM15		ARM "AMBA" serial port 15
2685		 32 = /dev/ttyDB0		DataBooster serial port 0
2686		    ...
2687		 39 = /dev/ttyDB7		DataBooster serial port 7
2688		 40 = /dev/ttySG0		SGI Altix console port
2689		 41 = /dev/ttySMX0		Motorola i.MX - port 0
2690		 42 = /dev/ttySMX1		Motorola i.MX - port 1
2691		 43 = /dev/ttySMX2		Motorola i.MX - port 2
2692		 44 = /dev/ttyMM0		Marvell MPSC - port 0
2693		 45 = /dev/ttyMM1		Marvell MPSC - port 1
2694		 46 = /dev/ttyCPM0		PPC CPM (SCC or SMC) - port 0
2695		    ...
2696		 47 = /dev/ttyCPM5		PPC CPM (SCC or SMC) - port 5
2697		 50 = /dev/ttyIOC0		Altix serial card
2698		    ...
2699		 81 = /dev/ttyIOC31		Altix serial card
2700		 82 = /dev/ttyVR0		NEC VR4100 series SIU
2701		 83 = /dev/ttyVR1		NEC VR4100 series DSIU
2702		 84 = /dev/ttyIOC84		Altix ioc4 serial card
2703		    ...
2704		 115 = /dev/ttyIOC115		Altix ioc4 serial card
2705		 116 = /dev/ttySIOC0		Altix ioc3 serial card
2706		    ...
2707		 147 = /dev/ttySIOC31		Altix ioc3 serial card
2708		 148 = /dev/ttyPSC0		PPC PSC - port 0
2709		    ...
2710		 153 = /dev/ttyPSC5		PPC PSC - port 5
2711		 154 = /dev/ttyAT0		ATMEL serial port 0
2712		    ...
2713		 169 = /dev/ttyAT15		ATMEL serial port 15
2714		 170 = /dev/ttyNX0		Hilscher netX serial port 0
2715		    ...
2716		 185 = /dev/ttyNX15		Hilscher netX serial port 15
2717		 186 = /dev/ttyJ0		JTAG1 DCC protocol based serial port emulation
2718		 187 = /dev/ttyUL0		Xilinx uartlite - port 0
2719		    ...
2720		 190 = /dev/ttyUL3		Xilinx uartlite - port 3
2721		 191 = /dev/xvc0		Xen virtual console - port 0
2722		 192 = /dev/ttyPZ0		pmac_zilog - port 0
2723		    ...
2724		 195 = /dev/ttyPZ3		pmac_zilog - port 3
2725		 196 = /dev/ttyTX0		TX39/49 serial port 0
2726		    ...
2727		 204 = /dev/ttyTX7		TX39/49 serial port 7
2728		 205 = /dev/ttySC0		SC26xx serial port 0
2729		 206 = /dev/ttySC1		SC26xx serial port 1
2730		 207 = /dev/ttySC2		SC26xx serial port 2
2731		 208 = /dev/ttySC3		SC26xx serial port 3
2732		 209 = /dev/ttyMAX0		MAX3100 serial port 0
2733		 210 = /dev/ttyMAX1		MAX3100 serial port 1
2734		 211 = /dev/ttyMAX2		MAX3100 serial port 2
2735		 212 = /dev/ttyMAX3		MAX3100 serial port 3
2736
2737 205 char	Low-density serial ports (alternate device)
2738		  0 = /dev/culu0		Callout device for ttyLU0
2739		  1 = /dev/culu1		Callout device for ttyLU1
2740		  2 = /dev/culu2		Callout device for ttyLU2
2741		  3 = /dev/culu3		Callout device for ttyLU3
2742		  4 = /dev/cufb0		Callout device for ttyFB0
2743		  5 = /dev/cusa0		Callout device for ttySA0
2744		  6 = /dev/cusa1		Callout device for ttySA1
2745		  7 = /dev/cusa2		Callout device for ttySA2
2746		  8 = /dev/cusc0		Callout device for ttySC0
2747		  9 = /dev/cusc1		Callout device for ttySC1
2748		 10 = /dev/cusc2		Callout device for ttySC2
2749		 11 = /dev/cusc3		Callout device for ttySC3
2750		 12 = /dev/cufw0		Callout device for ttyFW0
2751		 13 = /dev/cufw1		Callout device for ttyFW1
2752		 14 = /dev/cufw2		Callout device for ttyFW2
2753		 15 = /dev/cufw3		Callout device for ttyFW3
2754		 16 = /dev/cuam0		Callout device for ttyAM0
2755		    ...
2756		 31 = /dev/cuam15		Callout device for ttyAM15
2757		 32 = /dev/cudb0		Callout device for ttyDB0
2758		    ...
2759		 39 = /dev/cudb7		Callout device for ttyDB7
2760		 40 = /dev/cusg0		Callout device for ttySG0
2761		 41 = /dev/ttycusmx0		Callout device for ttySMX0
2762		 42 = /dev/ttycusmx1		Callout device for ttySMX1
2763		 43 = /dev/ttycusmx2		Callout device for ttySMX2
2764		 46 = /dev/cucpm0		Callout device for ttyCPM0
2765		    ...
2766		 49 = /dev/cucpm5		Callout device for ttyCPM5
2767		 50 = /dev/cuioc40		Callout device for ttyIOC40
2768		    ...
2769		 81 = /dev/cuioc431		Callout device for ttyIOC431
2770		 82 = /dev/cuvr0		Callout device for ttyVR0
2771		 83 = /dev/cuvr1		Callout device for ttyVR1
2772
2773 206 char	OnStream SC-x0 tape devices
2774		  0 = /dev/osst0		First OnStream SCSI tape, mode 0
2775		  1 = /dev/osst1		Second OnStream SCSI tape, mode 0
2776		    ...
2777		 32 = /dev/osst0l		First OnStream SCSI tape, mode 1
2778		 33 = /dev/osst1l		Second OnStream SCSI tape, mode 1
2779		    ...
2780		 64 = /dev/osst0m		First OnStream SCSI tape, mode 2
2781		 65 = /dev/osst1m		Second OnStream SCSI tape, mode 2
2782		    ...
2783		 96 = /dev/osst0a		First OnStream SCSI tape, mode 3
2784		 97 = /dev/osst1a		Second OnStream SCSI tape, mode 3
2785		    ...
2786		128 = /dev/nosst0		No rewind version of /dev/osst0
2787		129 = /dev/nosst1		No rewind version of /dev/osst1
2788		    ...
2789		160 = /dev/nosst0l		No rewind version of /dev/osst0l
2790		161 = /dev/nosst1l		No rewind version of /dev/osst1l
2791		    ...
2792		192 = /dev/nosst0m		No rewind version of /dev/osst0m
2793		193 = /dev/nosst1m		No rewind version of /dev/osst1m
2794		    ...
2795		224 = /dev/nosst0a		No rewind version of /dev/osst0a
2796		225 = /dev/nosst1a		No rewind version of /dev/osst1a
2797		    ...
2798
2799		The OnStream SC-x0 SCSI tapes do not support the
2800		standard SCSI SASD command set and therefore need
2801		their own driver "osst". Note that the IDE, USB (and
2802		maybe ParPort) versions may be driven via ide-scsi or
2803		usb-storage SCSI emulation and this osst device and
2804		driver as well.  The ADR-x0 drives are QIC-157
2805		compliant and don't need osst.
2806
2807 207 char	Compaq ProLiant health feature indicate
2808		  0 = /dev/cpqhealth/cpqw	Redirector interface
2809		  1 = /dev/cpqhealth/crom	EISA CROM
2810		  2 = /dev/cpqhealth/cdt	Data Table
2811		  3 = /dev/cpqhealth/cevt	Event Log
2812		  4 = /dev/cpqhealth/casr	Automatic Server Recovery
2813		  5 = /dev/cpqhealth/cecc	ECC Memory
2814		  6 = /dev/cpqhealth/cmca	Machine Check Architecture
2815		  7 = /dev/cpqhealth/ccsm	Deprecated CDT
2816		  8 = /dev/cpqhealth/cnmi	NMI Handling
2817		  9 = /dev/cpqhealth/css	Sideshow Management
2818		 10 = /dev/cpqhealth/cram	CMOS interface
2819		 11 = /dev/cpqhealth/cpci	PCI IRQ interface
2820
2821 208 char	User space serial ports
2822		  0 = /dev/ttyU0		First user space serial port
2823		  1 = /dev/ttyU1		Second user space serial port
2824		    ...
2825
2826 209 char	User space serial ports (alternate devices)
2827		  0 = /dev/cuu0			Callout device for ttyU0
2828		  1 = /dev/cuu1			Callout device for ttyU1
2829		    ...
2830
2831 210 char	SBE, Inc. sync/async serial card
2832		  0 = /dev/sbei/wxcfg0		Configuration device for board 0
2833		  1 = /dev/sbei/dld0		Download device for board 0
2834		  2 = /dev/sbei/wan00		WAN device, port 0, board 0
2835		  3 = /dev/sbei/wan01		WAN device, port 1, board 0
2836		  4 = /dev/sbei/wan02		WAN device, port 2, board 0
2837		  5 = /dev/sbei/wan03		WAN device, port 3, board 0
2838		  6 = /dev/sbei/wanc00		WAN clone device, port 0, board 0
2839		  7 = /dev/sbei/wanc01		WAN clone device, port 1, board 0
2840		  8 = /dev/sbei/wanc02		WAN clone device, port 2, board 0
2841		  9 = /dev/sbei/wanc03		WAN clone device, port 3, board 0
2842		 10 = /dev/sbei/wxcfg1		Configuration device for board 1
2843		 11 = /dev/sbei/dld1		Download device for board 1
2844		 12 = /dev/sbei/wan10		WAN device, port 0, board 1
2845		 13 = /dev/sbei/wan11		WAN device, port 1, board 1
2846		 14 = /dev/sbei/wan12		WAN device, port 2, board 1
2847		 15 = /dev/sbei/wan13		WAN device, port 3, board 1
2848		 16 = /dev/sbei/wanc10		WAN clone device, port 0, board 1
2849		 17 = /dev/sbei/wanc11		WAN clone device, port 1, board 1
2850		 18 = /dev/sbei/wanc12		WAN clone device, port 2, board 1
2851		 19 = /dev/sbei/wanc13		WAN clone device, port 3, board 1
2852		    ...
2853
2854		Yes, each board is really spaced 10 (decimal) apart.
2855
2856 211 char	Addinum CPCI1500 digital I/O card
2857		  0 = /dev/addinum/cpci1500/0	First CPCI1500 card
2858		  1 = /dev/addinum/cpci1500/1	Second CPCI1500 card
2859		    ...
2860
2861 212 char	LinuxTV.org DVB driver subsystem
2862		  0 = /dev/dvb/adapter0/video0    first video decoder of first card
2863		  1 = /dev/dvb/adapter0/audio0    first audio decoder of first card
2864		  2 = /dev/dvb/adapter0/sec0      (obsolete/unused)
2865		  3 = /dev/dvb/adapter0/frontend0 first frontend device of first card
2866		  4 = /dev/dvb/adapter0/demux0    first demux device of first card
2867		  5 = /dev/dvb/adapter0/dvr0      first digital video recoder device of first card
2868		  6 = /dev/dvb/adapter0/ca0       first common access port of first card
2869		  7 = /dev/dvb/adapter0/net0      first network device of first card
2870		  8 = /dev/dvb/adapter0/osd0      first on-screen-display device of first card
2871		  9 = /dev/dvb/adapter0/video1    second video decoder of first card
2872		    ...
2873		 64 = /dev/dvb/adapter1/video0    first video decoder of second card
2874		    ...
2875		128 = /dev/dvb/adapter2/video0    first video decoder of third card
2876		    ...
2877		196 = /dev/dvb/adapter3/video0    first video decoder of fourth card
2878
2879 216 char	Bluetooth RFCOMM TTY devices
2880		  0 = /dev/rfcomm0		First Bluetooth RFCOMM TTY device
2881		  1 = /dev/rfcomm1		Second Bluetooth RFCOMM TTY device
2882		    ...
2883
2884 217 char	Bluetooth RFCOMM TTY devices (alternate devices)
2885		  0 = /dev/curf0		Callout device for rfcomm0
2886		  1 = /dev/curf1		Callout device for rfcomm1
2887		    ...
2888
2889 218 char	The Logical Company bus Unibus/Qbus adapters
2890		  0 = /dev/logicalco/bci/0	First bus adapter
2891		  1 = /dev/logicalco/bci/1	First bus adapter
2892		    ...
2893
2894 219 char	The Logical Company DCI-1300 digital I/O card
2895		  0 = /dev/logicalco/dci1300/0	First DCI-1300 card
2896		  1 = /dev/logicalco/dci1300/1	Second DCI-1300 card
2897		    ...
2898
2899 220 char	Myricom Myrinet "GM" board
2900		  0 = /dev/myricom/gm0		First Myrinet GM board
2901		  1 = /dev/myricom/gmp0		First board "root access"
2902		  2 = /dev/myricom/gm1		Second Myrinet GM board
2903		  3 = /dev/myricom/gmp1		Second board "root access"
2904		    ...
2905
2906 221 char	VME bus
2907		  0 = /dev/bus/vme/m0		First master image
2908		  1 = /dev/bus/vme/m1		Second master image
2909		  2 = /dev/bus/vme/m2		Third master image
2910		  3 = /dev/bus/vme/m3		Fourth master image
2911		  4 = /dev/bus/vme/s0		First slave image
2912		  5 = /dev/bus/vme/s1		Second slave image
2913		  6 = /dev/bus/vme/s2		Third slave image
2914		  7 = /dev/bus/vme/s3		Fourth slave image
2915		  8 = /dev/bus/vme/ctl		Control
2916
2917		It is expected that all VME bus drivers will use the
2918		same interface.  For interface documentation see
2919		http://www.vmelinux.org/.
2920
2921 224 char	A2232 serial card
2922		  0 = /dev/ttyY0		First A2232 port
2923		  1 = /dev/ttyY1		Second A2232 port
2924		    ...
2925
2926 225 char	A2232 serial card (alternate devices)
2927		  0 = /dev/cuy0			Callout device for ttyY0
2928		  1 = /dev/cuy1			Callout device for ttyY1
2929		    ...
2930
2931 226 char	Direct Rendering Infrastructure (DRI)
2932		  0 = /dev/dri/card0		First graphics card
2933		  1 = /dev/dri/card1		Second graphics card
2934		    ...
2935
2936 227 char	IBM 3270 terminal Unix tty access
2937		  1 = /dev/3270/tty1		First 3270 terminal
2938		  2 = /dev/3270/tty2		Seconds 3270 terminal
2939		    ...
2940
2941 228 char	IBM 3270 terminal block-mode access
2942		  0 = /dev/3270/tub		Controlling interface
2943		  1 = /dev/3270/tub1		First 3270 terminal
2944		  2 = /dev/3270/tub2		Second 3270 terminal
2945		    ...
2946
2947 229 char	IBM iSeries/pSeries virtual console
2948		  0 = /dev/hvc0			First console port
2949		  1 = /dev/hvc1			Second console port
2950		    ...
2951
2952 230 char	IBM iSeries virtual tape
2953		  0 = /dev/iseries/vt0		First virtual tape, mode 0
2954		  1 = /dev/iseries/vt1		Second virtual tape, mode 0
2955		    ...
2956		 32 = /dev/iseries/vt0l		First virtual tape, mode 1
2957		 33 = /dev/iseries/vt1l		Second virtual tape, mode 1
2958		    ...
2959		 64 = /dev/iseries/vt0m		First virtual tape, mode 2
2960		 65 = /dev/iseries/vt1m		Second virtual tape, mode 2
2961		    ...
2962		 96 = /dev/iseries/vt0a		First virtual tape, mode 3
2963		 97 = /dev/iseries/vt1a		Second virtual tape, mode 3
2964		      ...
2965		128 = /dev/iseries/nvt0		First virtual tape, mode 0, no rewind
2966		129 = /dev/iseries/nvt1		Second virtual tape, mode 0, no rewind
2967		    ...
2968		160 = /dev/iseries/nvt0l	First virtual tape, mode 1, no rewind
2969		161 = /dev/iseries/nvt1l	Second virtual tape, mode 1, no rewind
2970		    ...
2971		192 = /dev/iseries/nvt0m	First virtual tape, mode 2, no rewind
2972		193 = /dev/iseries/nvt1m	Second virtual tape, mode 2, no rewind
2973		    ...
2974		224 = /dev/iseries/nvt0a	First virtual tape, mode 3, no rewind
2975		225 = /dev/iseries/nvt1a	Second virtual tape, mode 3, no rewind
2976		    ...
2977
2978		"No rewind" refers to the omission of the default
2979		automatic rewind on device close.  The MTREW or MTOFFL
2980		ioctl()'s can be used to rewind the tape regardless of
2981		the device used to access it.
2982
2983 231 char	InfiniBand
2984		0 = /dev/infiniband/umad0
2985		1 = /dev/infiniband/umad1
2986		  ...
2987		63 = /dev/infiniband/umad63    63rd InfiniBandMad device
2988		64 = /dev/infiniband/issm0     First InfiniBand IsSM device
2989		65 = /dev/infiniband/issm1     Second InfiniBand IsSM device
2990		  ...
2991		127 = /dev/infiniband/issm63    63rd InfiniBand IsSM device
2992		128 = /dev/infiniband/uverbs0   First InfiniBand verbs device
2993		129 = /dev/infiniband/uverbs1   Second InfiniBand verbs device
2994		  ...
2995		159 = /dev/infiniband/uverbs31  31st InfiniBand verbs device
2996
2997 232 char	Biometric Devices
2998		0 = /dev/biometric/sensor0/fingerprint	first fingerprint sensor on first device
2999		1 = /dev/biometric/sensor0/iris		first iris sensor on first device
3000		2 = /dev/biometric/sensor0/retina	first retina sensor on first device
3001		3 = /dev/biometric/sensor0/voiceprint	first voiceprint sensor on first device
3002		4 = /dev/biometric/sensor0/facial	first facial sensor on first device
3003		5 = /dev/biometric/sensor0/hand		first hand sensor on first device
3004		  ...
3005		10 = /dev/biometric/sensor1/fingerprint	first fingerprint sensor on second device
3006		  ...
3007		20 = /dev/biometric/sensor2/fingerprint	first fingerprint sensor on third device
3008		  ...
3009
3010 233 char	PathScale InfiniPath interconnect
3011		0 = /dev/ipath        Primary device for programs (any unit)
3012		1 = /dev/ipath0       Access specifically to unit 0
3013		2 = /dev/ipath1       Access specifically to unit 1
3014		  ...
3015		4 = /dev/ipath3       Access specifically to unit 3
3016		129 = /dev/ipath_sma    Device used by Subnet Management Agent
3017		130 = /dev/ipath_diag   Device used by diagnostics programs
3018
3019 234-254	char	RESERVED FOR DYNAMIC ASSIGNMENT
3020		Character devices that request a dynamic allocation of major number will
3021		take numbers starting from 254 and downward.
3022
3023 240-254 block	LOCAL/EXPERIMENTAL USE
3024		Allocated for local/experimental use.  For devices not
3025		assigned official numbers, these ranges should be
3026		used in order to avoid conflicting with future assignments.
3027
3028 255 char	RESERVED
3029
3030 255 block	RESERVED
3031
3032		This major is reserved to assist the expansion to a
3033		larger number space.  No device nodes with this major
3034		should ever be created on the filesystem.
3035		(This is probably not true anymore, but I'll leave it
3036		for now /Torben)
3037
3038 ---LARGE MAJORS!!!!!---
3039
3040 256 char	Equinox SST multi-port serial boards
3041		   0 = /dev/ttyEQ0	First serial port on first Equinox SST board
3042		 127 = /dev/ttyEQ127	Last serial port on first Equinox SST board
3043		 128 = /dev/ttyEQ128	First serial port on second Equinox SST board
3044		  ...
3045		1027 = /dev/ttyEQ1027	Last serial port on eighth Equinox SST board
3046
3047 256 block	Resident Flash Disk Flash Translation Layer
3048		  0 = /dev/rfda		First RFD FTL layer
3049		 16 = /dev/rfdb		Second RFD FTL layer
3050		  ...
3051		240 = /dev/rfdp		16th RFD FTL layer
3052
3053 257 char	Phoenix Technologies Cryptographic Services Driver
3054		  0 = /dev/ptlsec	Crypto Services Driver
3055
3056 257 block	SSFDC Flash Translation Layer filesystem
3057		  0 = /dev/ssfdca	First SSFDC layer
3058		  8 = /dev/ssfdcb	Second SSFDC layer
3059		 16 = /dev/ssfdcc	Third SSFDC layer
3060		 24 = /dev/ssfdcd	4th SSFDC layer
3061		 32 = /dev/ssfdce	5th SSFDC layer
3062		 40 = /dev/ssfdcf	6th SSFDC layer
3063		 48 = /dev/ssfdcg	7th SSFDC layer
3064		 56 = /dev/ssfdch	8th SSFDC layer
3065
3066 258 block	ROM/Flash read-only translation layer
3067		  0 = /dev/blockrom0	First ROM card's translation layer interface
3068		  1 = /dev/blockrom1	Second ROM card's translation layer interface
3069		  ...
3070
3071 259 block	Block Extended Major
3072		  Used dynamically to hold additional partition minor
3073		  numbers and allow large numbers of partitions per device
3074
3075 259 char	FPGA configuration interfaces
3076		  0 = /dev/icap0	First Xilinx internal configuration
3077		  1 = /dev/icap1	Second Xilinx internal configuration
3078
3079 260 char	OSD (Object-based-device) SCSI Device
3080		  0 = /dev/osd0		First OSD Device
3081		  1 = /dev/osd1		Second OSD Device
3082		  ...
3083		  255 = /dev/osd255	256th OSD Device
3084