Home | History | Annotate | Line # | Download | only in conf
GENERIC revision 1.152.2.9
      1 #	$NetBSD: GENERIC,v 1.152.2.9 1998/08/13 14:37:52 bouyer Exp $
      2 #
      3 #	GENERIC -- everything that's currently supported
      4 #
      5 
      6 include "arch/i386/conf/std.i386"
      7 
      8 maxusers	32		# estimated number of users
      9 
     10 # CPU support.  At least one is REQUIRED.
     11 options 	I386_CPU
     12 options 	I486_CPU
     13 options 	I586_CPU
     14 options 	I686_CPU
     15 
     16 # CPU-related options.
     17 options 	MATH_EMULATE	# floating point emulation
     18 #options 	VM86		# virtual 8086 emulation
     19 options 	USER_LDT	# user-settable LDT; used by WINE
     20 # eliminate delay no-ops in I/O; recommended on all but very old machines
     21 #options 	DUMMY_NOPS
     22 
     23 # Misc. i386-specific options
     24 options 	XSERVER		# X server support in console drivers
     25 
     26 # This option allows you to force a serial console at the specified
     27 # I/O address.   see console(4) for details.
     28 #options 	"CONSDEVNAME=\"com\""
     29 
     30 # The following options override the memory sizes passed in from the boot
     31 # block.  Use them *only* if the boot block is unable to determine the correct
     32 # values.  Note that the BIOS may *correctly* report less than 640k of base
     33 # memory if the extended BIOS data area is located at the top of base memory
     34 # (as is the case on most recent systems).
     35 #options 	REALBASEMEM=...	# size of base memory
     36 #options 	REALEXTMEM=...	# size of extended memory
     37 
     38 # Standard system options
     39 
     40 options 	UCONSOLE	# users can use TIOCCONS (for xconsole)
     41 options 	INSECURE	# disable kernel security levels
     42 
     43 options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
     44 #options 	NTP		# NTP phase/frequency locked loop
     45 
     46 options 	KTRACE		# system call tracing via ktrace(1)
     47 
     48 #options 	UVM		# Use UVM instead of Mach VM.
     49 #options 	PMAP_NEW	# new pmap interface; requires UVM
     50 
     51 options 	SYSVMSG		# System V-like message queues
     52 options 	SYSVSEM		# System V-like semaphores
     53 options 	SYSVSHM		# System V-like memory sharing
     54 #options 	SHMMAXPGS=1024	# 1024 pages is the default
     55 
     56 options 	LKM		# loadable kernel modules
     57 
     58 # Diagnostic/debugging support options
     59 options 	DIAGNOSTIC	# cheap kernel consistency checks
     60 #options 	DEBUG		# expensive debugging checks/support
     61 #options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
     62 options 	DDB		# in-kernel debugger
     63 #options 	DDB_HISTORY_SIZE=100	# enable history editing in DDB
     64 #options 	KGDB		# remote debugger
     65 #options 	"KGDB_DEVNAME=\"com\"",KGDBADDR=0x3f8,KGDBRATE=9600
     66 #makeoptions	DEBUG="-g"	# compile full symbol table
     67 
     68 # Compatibility options
     69 options 	COMPAT_NOMID	# compatibility with 386BSD, BSDI, NetBSD 0.8,
     70 options 	COMPAT_09	# NetBSD 0.9,
     71 options 	COMPAT_10	# NetBSD 1.0,
     72 options 	COMPAT_11	# NetBSD 1.1,
     73 options 	COMPAT_12	# NetBSD 1.2,
     74 options 	COMPAT_13	# NetBSD 1.3,
     75 options 	COMPAT_43	# and 4.3BSD
     76 options 	COMPAT_386BSD_MBRPART # recognize old partition ID
     77 
     78 options 	COMPAT_SVR4	# binary compatibility with SVR4
     79 options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
     80 options 	COMPAT_LINUX	# binary compatibility with Linux
     81 options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD
     82 
     83 # Executable format options
     84 options 	EXEC_ELF32	# 32-bit ELF executables (SVR4, Linux)
     85 
     86 # File systems
     87 file-system 	FFS		# UFS
     88 file-system 	EXT2FS		# second extended file system (linux)
     89 file-system 	LFS		# log-structured file system
     90 file-system 	MFS		# memory file system
     91 file-system 	NFS		# Network File System client
     92 file-system 	CD9660		# ISO 9660 + Rock Ridge file system
     93 file-system 	MSDOSFS		# MS-DOS file system
     94 file-system 	FDESC		# /dev/fd
     95 file-system 	KERNFS		# /kern
     96 file-system 	NULLFS		# loopback file system
     97 file-system 	PORTAL		# portal filesystem (still experimental)
     98 file-system 	PROCFS		# /proc
     99 file-system 	UMAPFS		# NULLFS + uid and gid remapping
    100 file-system 	UNION		# union file system
    101 
    102 # File system options
    103 options 	QUOTA		# UFS quotas
    104 #options 	FFS_EI		# FFS Endian Independant support
    105 options 	NFSSERVER	# Network File System server
    106 #options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
    107 				# immutable) behave as system flags.
    108 
    109 # Networking options
    110 #options 	GATEWAY		# packet forwarding
    111 options 	INET		# IP + ICMP + TCP + UDP
    112 #options 	MROUTING	# IP multicast routing
    113 options 	NS		# XNS
    114 #options 	NSIP		# XNS tunneling over IP
    115 options 	ISO,TPIP	# OSI
    116 options 	EON		# OSI tunneling over IP
    117 options 	CCITT,LLC,HDLC	# X.25
    118 options 	NETATALK	# AppleTalk networking protocols
    119 #options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
    120 #options 	PPP_DEFLATE	# Deflate compression support for PPP
    121 #options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
    122 #options 	PFIL_HOOKS	# pfil(9) packet filter hooks
    123 #options 	IPFILTER_LOG	# ipmon(8) log support
    124 
    125 # Compatibility with 4.2BSD implementation of TCP/IP.  Not recommended.
    126 #options 	TCP_COMPAT_42
    127 
    128 # These options enable verbose messages for several subsystems.
    129 # Warning, these may compile large string tables into the kernel!
    130 options 	EISAVERBOSE	# verbose EISA device autoconfig messages
    131 options 	PCIVERBOSE	# verbose PCI device autoconfig messages
    132 #options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
    133 options 	SCSIVERBOSE	# human readable SCSI error messages
    134 options 	USBVERBOSE	# verbose USB device autoconfig messages
    135 
    136 options 	NFS_BOOT_BOOTP,NFS_BOOT_BOOTPARAM
    137 
    138 # Kernel root file system and dump configuration.
    139 config		netbsd	root on ? type ?
    140 #config		netbsd	root on sd0a type ffs
    141 #config		netbsd	root on ? type nfs
    142 
    143 #
    144 # Device configuration
    145 #
    146 
    147 mainbus0 at root
    148 
    149 #apm0	at mainbus0			# Advanced power management
    150 
    151 
    152 # Basic Bus Support
    153 
    154 # PCI bus support
    155 pci*	at mainbus? bus ?
    156 pci*	at pchb? bus ?
    157 pci*	at ppb? bus ?
    158 
    159 # PCI bridges
    160 pchb*	at pci? dev ? function ?	# PCI-Host bridges
    161 pceb*	at pci? dev ? function ?	# PCI-EISA bridges
    162 pcib*	at pci? dev ? function ?	# PCI-ISA bridges
    163 ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    164 # XXX 'puc's aren't really bridges, but there's no better place for them here
    165 puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
    166 
    167 # EISA bus support
    168 eisa*	at mainbus?
    169 eisa*	at pceb?
    170 
    171 # ISA bus support
    172 isa*	at mainbus?
    173 isa*	at pceb?
    174 isa*	at pcib?
    175 
    176 # PCMCIA bus support
    177 pcmcia*	at pcic? controller ? socket ?
    178 
    179 # ISA PCMCIA controllers
    180 pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000
    181 pcic1	at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000
    182 
    183 # ISA Plug-and-Play bus support
    184 isapnp0	at isa?
    185 
    186 # ISA Plug-and-Play PCMCIA controllers
    187 pcic*	at isapnp?
    188 
    189 # Coprocessor Support
    190 
    191 # Math Coprocessor support
    192 npx0	at isa? port 0xf0 irq 13	# x86 math coprocessor
    193 
    194 
    195 # Console Devices
    196 
    197 # ISA console.  You can only configure one of these!
    198 pc0	at isa? port 0x60 irq 1		# pccons generic PC console driver
    199 #vt0	at isa? port 0x60 irq 1		# PCVT console driver
    200 
    201 # Keyboard layout configuration for pccons
    202 #options 	FRENCH_KBD
    203 #options 	FINNISH_KBD
    204 #options 	GERMAN_KBD
    205 #options 	NORWEGIAN_KBD
    206 
    207 pcppi0	at isa?
    208 sysbeep0	at pcppi?
    209 
    210 # Serial Devices
    211 
    212 # PCI serial interfaces
    213 com*	at puc? port ?			# 16x450s on "universal" comm boards
    214 cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
    215 
    216 # ISA Plug-and-Play serial interfaces
    217 com*	at isapnp?			# Modems and serial boards
    218 
    219 # PCMCIA serial interfaces
    220 com*	at pcmcia? function ?		# Modems and serial cards
    221 
    222 # ISA serial interfaces
    223 #options 	COM_HAYESP		# adds Hayes ESP serial board support
    224 com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
    225 com1	at isa? port 0x2f8 irq 3
    226 com2	at isa? port 0x3e8 irq 5
    227 #com3	at isa? port 0x2e8 irq 9
    228 #ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
    229 #com*	at ast? slave ?
    230 #boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
    231 #com*	at boca? slave ?
    232 #rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
    233 #com*	at rtfps? slave ?
    234 #cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards
    235 
    236 
    237 # Parallel Printer Interfaces
    238 
    239 # PCI parallel printer interfaces
    240 lpt*	at puc? port ?			# || ports on "universal" comm boards
    241 
    242 # ISA parallel printer interfaces
    243 lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
    244 lpt1	at isa? port 0x278
    245 lpt2	at isa? port 0x3bc
    246 
    247 
    248 # SCSI Controllers and Devices
    249 
    250 # PCI SCSI controllers
    251 ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
    252 bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
    253 isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
    254 ncr*	at pci? dev ? function ?	# NCR 53c8xx SCSI
    255 
    256 # EISA SCSI controllers
    257 ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
    258 ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
    259 bha*	at eisa? slot ?			# BusLogic 7xx SCSI
    260 uha*	at eisa? slot ?			# UltraStor 24f SCSI
    261 
    262 # PCMCIA SCSI controllers
    263 aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
    264 
    265 # ISA Plug-and-Play SCSI controllers
    266 aic*	at isapnp?			# Adaptec AHA-1520B
    267 
    268 # ISA SCSI controllers
    269 aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
    270 aha1	at isa? port 0x334 irq ? drq ?
    271 ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
    272 aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
    273 bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
    274 bha1	at isa? port 0x334 irq ? drq ?
    275 sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
    276 uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
    277 uha1	at isa? port 0x340 irq ? drq ?
    278 wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
    279 wds1	at isa? port 0x358 irq 11 drq 5
    280 
    281 # SCSI bus support
    282 scsibus* at aha?
    283 scsibus* at ahb?
    284 scsibus* at ahc?
    285 scsibus* at aic?
    286 scsibus* at bha?
    287 scsibus* at isp?
    288 scsibus* at ncr?
    289 scsibus* at sea?
    290 scsibus* at uha?
    291 scsibus* at wds?
    292 
    293 # SCSI devices
    294 sd*	at scsibus? target ? lun ?	# SCSI disk drives
    295 st*	at scsibus? target ? lun ?	# SCSI tape drives
    296 cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    297 ch*	at scsibus? target ? lun ?	# SCSI autochangers
    298 ss*	at scsibus? target ? lun ?	# SCSI scanners
    299 uk*	at scsibus? target ? lun ?	# SCSI unknown
    300 
    301 
    302 # IDE and Related Devices
    303 # PCI IDE controllers (CMD tech's PCI0640, Intel's PIIx).
    304 pciide* at pci ? dev ? function ? 
    305 
    306 # ISA Plug-and-Play IDE controllers
    307 wdc*	at isapnp? flags 0x0000
    308 
    309 # PCMCIA IDE controllers
    310 wdc*	at pcmcia? function ? 
    311 
    312 # ISA ST506, ESDI, and IDE controllers
    313 wdc0	at isa? port 0x1f0 irq 14 
    314 wdc1	at isa? port 0x170 irq 15
    315 
    316 # IDE drives
    317 wd*	at wdc? channel ? drive ?
    318 wd*	at pciide? channel ? drive ?
    319 
    320 # ATAPI bus support
    321 atapibus* at wdc? channel ?
    322 atapibus* at pciide? channel ?
    323 
    324 # ATAPI devices
    325 cd*	at atapibus? drive ?		# ATAPI CD-ROM drives
    326 sd*	at atapibus? drive ?		# ATAPI disk drives
    327 
    328 
    329 # Miscellaneous mass storage devices
    330 
    331 # ISA floppy
    332 fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
    333 #fdc1	at isa? port 0x370 irq ? drq ?
    334 fd*	at fdc? drive ?			# the drives themselves
    335 # some machines need you to do this instead of fd*
    336 #fd0	at fdc0 drive 0
    337 
    338 # ISA CD-ROM devices
    339 #mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives
    340 
    341 # ISA tape devices
    342 # note: the wt driver conflicts unpleasantly with SMC boards at the
    343 # same I/O address. The probe reprograms their EEPROMs. Don't
    344 # uncomment it unless you are actually using it.
    345 #wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives
    346 
    347 
    348 # Network Interfaces
    349 
    350 # PCI network interfaces
    351 de*	at pci? dev ? function ?	# DEC 21x4x-based Ethernet
    352 en*	at pci? dev ? function ?	# ENI/Adaptec ATM
    353 ep*	at pci? dev ? function ?	# 3Com 3c59x/3c90x Ethernet
    354 epic*	at pci? dev ? function ?	# SMC EPIC/100 Ethernet
    355 esh*	at pci? dev ? function ?	# Essential HIPPI card
    356 fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
    357 fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    358 le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
    359 ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
    360 tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
    361 
    362 # EISA network interfaces
    363 ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
    364 fea*	at eisa? slot ?			# DEC DEFEA FDDI
    365 
    366 # ISA Plug-and-Play network interfaces
    367 ep*	at isapnp?			# 3Com 3c509 Ethernet
    368 ne*	at isapnp?			# NE2000-compatible Ethernet
    369 
    370 # PCMCIA network interfaces
    371 ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
    372 mbe*	at pcmcia? function ?		# MB8696x based Ethernet
    373 ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
    374 sm*	at pcmcia? function ?		# Megahertz Ethernet
    375 
    376 # ISA network interfaces
    377 ate0	at isa? port 0x2a0 irq ?		# AT1700
    378 cs0	at isa? port 0x300 iomem ? irq ? drq ?	# CS8900 Ethernet
    379 ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
    380 eg0	at isa? port 0x280 irq 9		# 3C505 ethernet cards
    381 el0	at isa? port 0x300 irq 9		# 3C501 ethernet cards
    382 ep0	at isa? port ? irq ?			# 3C509 ethernet cards
    383 ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3C507
    384 ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
    385 fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
    386 ix0	at isa? port 0x300 irq 10		# EtherExpress/16
    387 iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
    388 lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
    389 #depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
    390 #le*	at depca?
    391 nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
    392 le*	at nele?
    393 bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
    394 le*	at bicc?
    395 ne0	at isa? port 0x280 irq 9		# NE[12]000 ethernet cards
    396 ne1	at isa? port 0x300 irq 10
    397 sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
    398 we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
    399 we1	at isa? port 0x300 iomem 0xcc000 irq 10
    400 
    401 # MII/PHY support
    402 inphy*	at mii? phy ?			# Intel 82555 PHYs
    403 nsphy*	at mii? phy ?			# NS83840 PHYs
    404 qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
    405 tlphy*	at mii? phy ?			# ThunderLAN PHYs
    406 
    407 # USB Controller and Devices
    408 
    409 # PCI USB controllers
    410 uhci*	at pci?				# Universal Host Controller (Intel)
    411 ohci*	at pci?				# Open Host Controller
    412 
    413 # USB bus support
    414 usb*	at uhci?
    415 usb*	at ohci?
    416 
    417 # USB Hubs
    418 uhub*	at usb?
    419 uhub*	at uhub? port ?
    420 
    421 # USB Mice
    422 ums*	at uhub? port ?
    423 wsmouse*	at ums?
    424 
    425 # USB Keyboards
    426 ukbd*	at uhub? port ?
    427 wskbd*	at ukbd? console ?
    428 
    429 # USB Generic HID devices
    430 uhid*	at uhub? port ?
    431 
    432 # USB Printer
    433 ulpt*	at uhub? port ?
    434 
    435 # USB Generic driver
    436 #ugen*	at uhub? port ?
    437 
    438 # Audio Devices
    439 
    440 # PCI audio devices
    441 eap*	at pci? dev ? function ?	# Ensoniq AudioPCI
    442 
    443 # ISA Plug-and-Play audio devices
    444 ess*	at isapnp?			# ESS Tech ES1887, ES1888, ES888 audio
    445 guspnp*	at isapnp?			# Gravis Ultra Sound PnP audio
    446 sb*	at isapnp?			# SoundBlaster-compatible audio
    447 wss*	at isapnp?			# Windows Sound System
    448 ym*	at isapnp?			# Yamaha OPL3-SA3 audio
    449 
    450 # ISA audio devices
    451 aria0	at isa? port 0x290 irq 10 		# Aria
    452 gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
    453 pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
    454 pss0	at isa? port 0x220 irq 7 drq 6  	# Personal Sound System
    455 sp0	at pss0 port 0x530 irq 10 drq 0		# 	sound port driver
    456 sb0	at isa? port 0x220 irq 5 drq 1 drq2 5	# SoundBlaster
    457 wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System
    458 
    459 # USB Audio devices
    460 #uaudio*	at uhub? port ?
    461 
    462 # Audio support
    463 audio*	at aria?
    464 audio*	at eap?
    465 audio*	at gus?
    466 audio*	at guspnp?
    467 audio*	at pas?
    468 audio*	at sb?
    469 audio*	at sp?
    470 #audio*	at uaudio?
    471 audio*	at wss?
    472 audio*	at ym?
    473 audio*	at ess?
    474 
    475 # MIDI support
    476 midi*	at pcppi?		# MIDI interface to the PC speaker
    477 midi*	at sb?			# SB MPU401 port
    478 
    479 # The spkr driver provides a simple tone interface to the built in speaker.
    480 #spkr0	at pcppi?		# PC speaker
    481 
    482 
    483 # Mice
    484 
    485 # ISA busmice
    486 lms0	at isa? port 0x23c irq 5	# Logitech bus mouse
    487 lms1	at isa? port 0x238 irq 5
    488 mms0	at isa? port 0x23c irq 5	# Microsoft InPort mouse
    489 mms1	at isa? port 0x238 irq 5
    490 #pms0	at pc? irq 12		# PS/2 auxiliary port mouse
    491 #pms0	at vt? irq 12		# PS/2 auxiliary port mouse
    492 
    493 
    494 # Joysticks
    495 
    496 # ISA Plug-and-Play joysticks
    497 joy*	at isapnp?			# Game ports (usually on audio cards)
    498 
    499 # ISA joysticks. Probe is a little strange; add only if you have one.
    500 #joy0	at isa? port 0x201
    501 
    502 
    503 # Miscellaneous Devices
    504 
    505 # Planetconnect Satellite receiver driver.
    506 #satlink0 at isa? port 0x300 drq 1
    507 
    508 
    509 # Pull in optional local configuration
    510 include	"arch/i386/conf/GENERIC.local"
    511 
    512 
    513 # Pseudo-Devices
    514 
    515 # disk/mass storage pseudo-devices
    516 pseudo-device	ccd		4	# concatenated/striped disk devices
    517 pseudo-device	md		1	# memory disk device (ramdisk)
    518 pseudo-device	vnd		4	# disk-like interface to files
    519 
    520 # network pseudo-devices
    521 pseudo-device	bpfilter	8	# Berkeley packet filter
    522 pseudo-device	ipfilter		# IP filter (firewall) and NAT
    523 pseudo-device	loop			# network loopback
    524 pseudo-device	ppp		2	# Point-to-Point Protocol
    525 pseudo-device	sl		2	# Serial Line IP
    526 pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    527 pseudo-device	tun		2	# network tunneling over tty
    528 
    529 # miscellaneous pseudo-devices
    530 pseudo-device	pty		64	# pseudo-terminals
    531 pseudo-device	tb		1	# tablet line discipline
    532 pseudo-device	sequencer	1	# MIDI sequencer
    533 
    534 # rnd is EXPERIMENTAL at this point.
    535 #pseudo-device	rnd			# /dev/random and in-kernel generator
    536 #options 	RND_COM			# use "com" randomness as well (BROKEN)
    537