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GENERIC revision 1.78
      1 # $NetBSD: GENERIC,v 1.78 2004/06/26 07:32:08 abs Exp $
      2 #
      3 # GENERIC machine description file
      4 # 
      5 # This machine description file is used to generate the default NetBSD
      6 # kernel.  The generic kernel does not include all options, subsystems
      7 # and device drivers, but should be useful for most applications.
      8 #
      9 # The machine description file can be customised for your specific
     10 # machine to reduce the kernel size and improve its performance.
     11 #
     12 # For further information on compiling NetBSD kernels, see the config(8)
     13 # man page.
     14 #
     15 # For further information on hardware support for this architecture, see
     16 # the intro(4) man page.  For further information about kernel options
     17 # for this architecture, see the options(4) man page.  For an explanation
     18 # of each device driver in this file see the section 4 man page for the
     19 # device.
     20 
     21 include 	"arch/prep/conf/std.prep"
     22 
     23 options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
     24 
     25 makeoptions	COPTS="-Os -mmultiple"	# -Os -mmultiple to reduce size.
     26 
     27 #ident		"GENERIC-$Revision: 1.78 $"
     28 
     29 maxusers	32
     30 
     31 # Platform support
     32 options 	PLATFORM_IBM_6040		# IBM ThinkPad 820
     33 options 	PLATFORM_IBM_6050		# IBM Personal Power Series 830
     34 options 	PLATFORM_IBM_7248		# IBM RS/6000 7248-100/120/133
     35 options 	PLATFORM_IBM_7043_140		# IBM RS/6000 43P 7043-140
     36 options 	PLATFORM_MOTOROLA_ULMB60XA	# Motorola ULMB60xA (?)
     37 
     38 options 	OPENPIC				# OpenPIC support (7043-140)
     39 
     40 # Standard system options
     41 
     42 options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
     43 options 	NTP		# NTP phase/frequency locked loop
     44 
     45 options 	KTRACE		# system call tracing via ktrace(1)
     46 options 	SYSTRACE	# system call vetting via systrace(1)
     47 
     48 options 	SYSVMSG		# System V-like message queues
     49 options 	SYSVSEM		# System V-like semaphores
     50 #options 	SEMMNI=10	# number of semaphore identifiers
     51 #options 	SEMMNS=60	# number of semaphores in system
     52 #options 	SEMUME=10	# max number of undo entries per process
     53 #options 	SEMMNU=30	# number of undo structures in system
     54 options 	SYSVSHM		# System V-like memory sharing
     55 #options 	SHMMAXPGS=1024	# 1024 pages is the default
     56 
     57 options 	LKM		# loadable kernel modules
     58 
     59 options 	USERCONF	# userconf(4) support
     60 #options	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
     61 
     62 # Enable experimental buffer queue strategy for better responsiveness under 
     63 # high disk I/O load. Use it with caution - it's not proven to be stable yet.
     64 #options 	NEW_BUFQ_STRATEGY
     65 
     66 # Diagnostic/debugging support options
     67 #options 	DIAGNOSTIC	# cheap kernel consistency checks
     68 #options 	DEBUG		# expensive debugging checks/support
     69 #options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
     70 options 	DDB		# in-kernel debugger
     71 #options 	DDB_HISTORY_SIZE=100	# Enable history editing in DDB
     72 #makeoptions	DEBUG="-g"
     73 
     74 # Compatibility options
     75 options 	COMPAT_13	# NetBSD 1.3,
     76 options 	COMPAT_14	# NetBSD 1.4,
     77 options 	COMPAT_15	# NetBSD 1.5,
     78 options 	COMPAT_16	# NetBSD 1.6,
     79 options 	COMPAT_43	# and 4.3BSD
     80 #options 	COMPAT_LINUX	# Linux binary compatibility
     81 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
     82 
     83 # File systems
     84 file-system 	FFS		# UFS
     85 file-system	EXT2FS		# second extended file system (linux)
     86 #file-system	LFS		# log-structured file system
     87 file-system 	MFS		# memory file system
     88 file-system 	NFS		# Network File System client
     89 #file-system	NTFS		# Windows/NT file system (experimental)
     90 file-system 	CD9660		# ISO 9660 + Rock Ridge file system
     91 file-system 	MSDOSFS		# MS-DOS file system
     92 #file-system 	FDESC		# /dev/fd
     93 file-system 	KERNFS		# /kern
     94 file-system 	NULLFS		# loopback file system
     95 #file-system	OVERLAY		# overlay file system
     96 #file-system 	PORTAL		# portal filesystem (still experimental)
     97 file-system 	PROCFS		# /proc
     98 #file-system 	UMAPFS		# NULLFS + uid and gid remapping
     99 file-system 	UNION		# union file system
    100 #file-system	CODA		# Coda File System; also needs vcoda (below)
    101 
    102 # File system options
    103 options 	QUOTA		# UFS quotas
    104 #options 	FFS_EI		# FFS Endian Independant support
    105 options 	SOFTDEP		# FFS soft updates support.
    106 options 	NFSSERVER	# Network File System server
    107 #options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
    108  				# immutable) behave as system flags.
    109 
    110 # Networking options
    111 #options 	GATEWAY		# packet forwarding
    112 options 	INET		# IP + ICMP + TCP + UDP
    113 options 	INET6		# IPv6
    114 #options 	IPSEC		# IP security
    115 #options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
    116 #options 	IPSEC_DEBUG	# debug for IP security
    117 #options 	MROUTING	# IP multicast routing
    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 #options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
    125 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    126 
    127 #options 	ALTQ		# Manipulate network interfaces' output queues
    128 #options 	ALTQ_BLUE	# Stochastic Fair Blue
    129 #options 	ALTQ_CBQ	# Class-Based Queueing
    130 #options 	ALTQ_CDNR	# Diffserv Traffic Conditioner
    131 #options 	ALTQ_FIFOQ	# First-In First-Out Queue
    132 #options 	ALTQ_FLOWVALVE	# RED/flow-valve (red-penalty-box)
    133 #options 	ALTQ_HFSC	# Hierarchical Fair Service Curve
    134 #options 	ALTQ_LOCALQ	# Local queueing discipline
    135 #options 	ALTQ_PRIQ	# Priority Queueing
    136 #options 	ALTQ_RED	# Random Early Detection
    137 #options 	ALTQ_RIO	# RED with IN/OUT
    138 #options 	ALTQ_WFQ	# Weighted Fair Queueing
    139 
    140 # These options enable verbose messages for several subsystems.
    141 # Warning, these may compile large string tables into the kernel!
    142 #options 	MIIVERBOSE	# verbose PHY autoconfig messages
    143 options 	PCIVERBOSE	# verbose PCI device autoconfig messages
    144 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    145 #options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
    146 options 	SCSIVERBOSE	# human readable SCSI error messages
    147 #options 	USBVERBOSE	# verbose USB device autoconfig messages
    148 #options 	RESIDUAL_DATA_DUMP	# verbosely dump residual data
    149 
    150 #options 	NFS_BOOT_BOOTP
    151 options 	NFS_BOOT_BOOTPARAM
    152 options 	NFS_BOOT_DHCP
    153 
    154 #
    155 # wscons options
    156 #
    157 # builtin terminal emulations
    158 options 	WSEMUL_VT100		# VT100 / VT220 emulation
    159 # different kernel output - see dev/wscons/wsdisplayvar.h
    160 options 	WS_KERNEL_FG=WSCOL_GREEN
    161 #options 	WS_KERNEL_BG=WSCOL_BLACK
    162 # see dev/pckbc/wskbdmap_mfii.c for implemented layouts
    163 #options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
    164 # allocate a number of virtual screens at autoconfiguration time
    165 #options 	WSDISPLAY_DEFAULTSCREENS=4
    166 # use a large software cursor that doesn't blink
    167 options 	PCDISPLAY_SOFTCURSOR
    168 
    169 # Kernel root file system and dump configuration.
    170 config	netbsd	root on ? type ?
    171 #config	netbsd	root on tlp0 type nfs
    172 #config	netbsd	root on pcn0 type nfs
    173 
    174 
    175 #
    176 # Device configuration
    177 #
    178 
    179 mainbus0 at root
    180 cpu0	at mainbus0
    181 
    182 
    183 # Basic Bus Support
    184 
    185 # PCI bus support
    186 pci0	at mainbus0 bus ?
    187 pci*	at pchb? bus ?
    188 pci*	at ppb? bus ?
    189 
    190 options 	PCI_NETBSD_CONFIGURE
    191 
    192 # PCI bridges
    193 pchb*	at pci? dev ? function ?	# PCI-Host bridges
    194 ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    195 pcib*	at pci? dev ? function ?	# PCI-ISA bridges
    196 
    197 # ISA bus support
    198 isa*	at pcib?			# ISA on PCI-ISA bridge
    199 
    200 # PCMCIA bus support
    201 pcmcia* at pcic? controller ? socket ?
    202 
    203 # ISA PCMCIA controllers
    204 pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
    205 
    206 #options 	PCIC_ISA_INTR_ALLOC_MASK=0x4a00 # free irq 9,11,14
    207 #options 	PCIC_ISA_ALLOC_IOBASE=0x0400
    208 #options 	PCIC_ISA_ALLOC_IOSIZE=0x0100
    209 
    210 # ISA Plug-and-Play bus support
    211 #isapnp0	at isa?
    212 
    213 # on-board I/O for IBM Personal Power Series 830 IDE controller
    214 obio0	at mainbus0
    215 
    216 
    217 # Console Devices
    218 
    219 # wscons
    220 pckbc0		at isa?			# pc keyboard controller
    221 pckbd*		at pckbc?		# PC keyboard
    222 pms*		at pckbc?		# PS/2 mouse for wsmouse
    223 vga*		at pci?
    224 wsdisplay*	at vga? console ?
    225 wskbd*		at pckbd? console ?
    226 wsmouse*	at pms? mux 0
    227 
    228 pcppi0	at isa?				# PC prog. periph. interface
    229 isabeep0 at pcppi?			# "keyboard" beep
    230 
    231 mcclock0 at isa? port 0x70		# mc146818 and compatible
    232 mkclock0 at isa? port 0x74		# mk48t18 and compatible
    233 
    234 
    235 # Cryptographic Devices
    236 
    237 # PCI cryptographic devices
    238 #hifn*	at pci? dev ? function ?	# Hifn 7755/7811/795x
    239 #ubsec*	at pci? dev ? function ?	# Broadcom 5501/5601/580x/582x
    240 
    241 
    242 # Serial Devices
    243 
    244 # ISA serial interfaces
    245 com0	at isa? port 0x3f8 irq 4	# standard PC serial ports
    246 com1	at isa? port 0x2f8 irq 3
    247 
    248 # PCMCIA serial interfaces
    249 com*	at pcmcia? function ?		# Modems and serial cards
    250 
    251 #pcmcom* at pcmcia? function ?		# PCMCIA multi-port serial cards
    252 #com*	at pcmcom? slave ?		# ...and the slave devices
    253 
    254 
    255 # Parallel Printer Interfaces
    256 
    257 # ISA parallel printer interfaces
    258 lpt0	at isa? port 0x3bc irq 7	# standard PC parallel ports
    259 
    260 
    261 # SCSI Controllers and Devices
    262 
    263 # PCI SCSI controllers
    264 #adw*	at pci? dev ? function ?	# AdvanSys 9x0UW[D], 3940U[2,3]W SCSI
    265 ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
    266 #iha*	at pci? dev ? function ?	# Initio INIC-940/950 SCSI
    267 #pcscp*	at pci? dev ? function ?	# AMD 53c974 PCscsi-PCI SCSI
    268 siop*	at pci? dev ? function ?	# Symbios 53c8xx SCSI
    269 esiop*	at pci? dev ? function ?	# Symbios 53c875 SCSI and newer
    270 
    271 # PCMCIA SCSI controllers
    272 aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
    273 
    274 # SCSI bus support
    275 #scsibus* at adw?
    276 scsibus* at ahc?
    277 scsibus* at aic?
    278 #scsibus* at iha?
    279 #scsibus* at pcscp?
    280 scsibus* at siop?
    281 scsibus* at esiop?
    282 
    283 # SCSI devices
    284 sd*	at scsibus? target ? lun ?	# SCSI disk drives
    285 st*	at scsibus? target ? lun ?	# SCSI tape drives
    286 cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    287 #ch*	at scsibus? target ? lun ?	# SCSI autochangers
    288 #ss*	at scsibus? target ? lun ?	# SCSI scanners
    289 uk*	at scsibus? target ? lun ?	# SCSI unknown
    290 
    291 
    292 # IDE and related devices
    293 
    294 # IBM Personal Power Series 830 IDE controller
    295 wdc0	at obio? port 0x1f0 irq 13
    296 wdc1	at obio? port 0x170 irq 13
    297 
    298 # ISA Plug-and-Play IDE controllers
    299 #wdc*	at isapnp?
    300 
    301 # PCMCIA IDE controllers
    302 wdc*	at pcmcia? function ?
    303 
    304 # ATA (IDE) bus support
    305 atabus* at ata?
    306 
    307 # IDE drives
    308 # Flags are used only with controllers that support DMA operations
    309 # and mode settings (e.g. some pciide controllers)
    310 # The lowest order four bits (rightmost digit) of the flags define the PIO
    311 # mode to use, the next set of four bits the DMA mode and the third set the
    312 # UltraDMA mode. For each set of four bits, the 3 lower bits define the mode
    313 # to use, and the last bit must be 1 for this setting to be used.
    314 # For DMA and UDMA, 0xf (1111) means 'disable'.
    315 # 0x0fac means 'use PIO mode 4, DMA mode 2, disable UltraDMA'.
    316 # (0xc=1100, 0xa=1010, 0xf=1111)
    317 # 0x0000 means "use whatever the drive claims to support".
    318 wd*	at atabus? drive ? flags 0x0000
    319 
    320 # ATAPI bus support
    321 atapibus* at atapi?
    322 
    323 # ATAPI devices
    324 # flags have the same meaning as for IDE drives.
    325 cd*	at atapibus? drive ? flags 0x0000	# ATAPI CD-ROM drives
    326 sd*	at atapibus? drive ? flags 0x0000	# ATAPI disk drives
    327 uk*	at atapibus? drive ? flags 0x0000	# ATAPI unknown
    328 
    329 # Miscellaneous mass storage devices
    330 
    331 # ISA Floppy
    332 #fdc0 at isa? port 0x3f0 irq 6 drq 2	# standard ISA floppy controller
    333 #fd0 at fdc0 drive ?
    334 
    335 # Network Interfaces
    336 
    337 # PCI network interfaces
    338 ep*	at pci? dev ? function ?	# 3Com 3c59x
    339 ex*	at pci? dev ? function ?	# 3Com 3c90x[BC]
    340 fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    341 ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
    342 pcn*	at pci? dev ? function ?	# AMD PCnet-PCI Ethernet
    343 rtk*	at pci? dev ? function ?	# Realtek 8129/8139
    344 sip*	at pci? dev ? function ?	# SiS 900/DP83815 Ethernet
    345 tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
    346 vr*	at pci? dev ? function ?	# VIA Rhine Fast Ethernet
    347 
    348 # ISA network interfaces
    349 #ep*	at isa? port ? irq ?		# 3Com 3c509 Ethernet
    350 #ne0	at isa? port 0x280 irq 9	# NE2000-compatible Ethernet
    351 #ne1	at isa? port 0x300 irq 10
    352 #we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
    353 #we1	at isa? port 0x300 iomem 0xe4000 irq 11
    354 
    355 # ISA Plug-and-Play network intefaces
    356 #ep*	at isapnp?			# 3Com 3c509 Ethernet
    357 #ne*	at isapnp?			# NE2000-compatible Ethernet
    358 
    359 # PCMCIA network interfaces
    360 ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
    361 ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
    362 
    363 # MII/PHY support
    364 dmphy*	at mii? phy ?			# Davicom DM9101 PHYs
    365 exphy*	at mii? phy ?			# 3Com internal PHYs
    366 icsphy* at mii? phy ?			# Integrated Circuit Systems ICS189x
    367 inphy*	at mii? phy ?			# Intel 82555 PHYs
    368 iophy*	at mii? phy ?			# Intel 82553 PHYs
    369 lxtphy* at mii? phy ?			# Level One LXT-970 PHYs
    370 nsphy*	at mii? phy ?			# NS83840 PHYs
    371 nsphyter* at mii? phy ?			# NS83843 PHYs
    372 qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
    373 sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
    374 tlphy*	at mii? phy ?			# ThunderLAN PHYs
    375 tqphy*	at mii? phy ?			# TDK Semiconductor PHYs
    376 ukphy*	at mii? phy ?			# generic unknown PHYs
    377 
    378 
    379 # USB Controller and Devices
    380 
    381 # PCI USB controllers
    382 #uhci*	at pci? dev ? function ?	# Universal Host Controller (Intel)
    383 #ohci*	at pci? dev ? function ?	# Open Host Controller
    384 
    385 # USB bus support
    386 #usb*	at uhci?
    387 #usb*	at ohci?
    388 
    389 # USB Hubs
    390 #uhub*	at usb?
    391 #uhub*	at uhub? port ? configuration ? interface ?
    392 
    393 # USB HID device
    394 #uhidev*	at uhub? port ? configuration ? interface ?
    395 
    396 # USB Mice
    397 #ums*	at uhidev? reportid ?
    398 #wsmouse* at ums? mux 0
    399 
    400 # USB Keyboards
    401 #ukbd*	at uhidev? reportid ?
    402 #wskbd*	at ukbd? console ? mux 1
    403 
    404 # USB Generic HID devices
    405 #uhid*	at uhidev? reportid ?
    406 
    407 # USB Printer
    408 #ulpt*	at uhub? port ? configuration ? interface ?
    409 
    410 # USB Modem
    411 #umodem* at uhub? port ? configuration ?
    412 #ucom*	at umodem?
    413 
    414 # USB Mass Storage
    415 #umass*	at uhub? port ? configuration ? interface ?
    416 #scsibus* at umass? channel ?
    417 #atapibus* at umass?
    418 
    419 # USB audio
    420 #uaudio* at uhub? port ? configuration ?
    421 
    422 # USB Ethernet adapters
    423 #aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
    424 #cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
    425 #kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
    426 #uax*	at uhub? port ?		# ASIX AX88172 based adapters
    427 #url*	at uhub? port ?		# Realtek RTL8150L based adapters
    428 #udav*	at uhub? port ?		# Davicom DM9601 based adapters
    429 
    430 # Prolofic PL2301/PL2302 host-to-host adapter
    431 #upl*	at uhub? port ?
    432 
    433 # Serial adapters
    434 #uftdi*	at uhub? port ?		# FTDI FT8U100AX serial adapter
    435 #ucom*	at uftdi? portno ?
    436 
    437 #umct*	at uhub? port ?		# MCT USB-RS232 serial adapter
    438 #ucom*	at umct? portno ?
    439 
    440 #uplcom* at uhub? port ?	# I/O DATA USB-RSAQ2 serial adapter
    441 #ucom*	at uplcom? portno ?
    442 
    443 #uvscom* at uhub? port ?	# SUNTAC Slipper U VS-10U serial adapter
    444 #ucom*	at uvscom? portno ?
    445 
    446 # Diamond Multimedia Rio 500
    447 #urio*	at uhub? port ?
    448 
    449 # USB Handspring Visor
    450 #uvisor* at uhub? port ?
    451 #ucom*	at uvisor?
    452 
    453 # Y@P firmware loader
    454 #uyap* at uhub? port ?
    455 
    456 # USB Generic driver
    457 #ugen*	at uhub? port ?
    458 
    459 # USB scanners
    460 #uscanner* at uhub? port ?
    461 
    462 
    463 # Audio device
    464 
    465 # ISA Plug-and-Play audio devices
    466 #wss*	at isapnp?			# CS4232
    467 
    468 # Audio support
    469 #audio*	at uaudio?
    470 #audio*	at wss?
    471 
    472 # MIDI support
    473 #midi*	at pcppi?		# MIDI interface to the PC speaker
    474 
    475 # The spkr driver provides a simple tone interface to the built in speaker.
    476 #spkr0	at pcppi?		# PC speaker
    477 
    478 
    479 # Joysticks
    480 
    481 # ISA Plug-and-Play joysticks
    482 #joy*	at isapnp?			# Game ports (usually on audio cards)
    483 
    484 # ISA joysticks. Probe is a little strange; add only if you have one.
    485 #joy0	at isa? port 0x201
    486 
    487 
    488 # Pseudo-Devices
    489 
    490 # Not yet ready -- prep lacks generic soft interrupts
    491 #pseudo-device 	crypto		# opencrypto framework
    492 
    493 # disk/mass storage pseudo-devices
    494 pseudo-device	ccd		4	# concatenated/striped disk devices
    495 #pseudo-device	cgd		4	# cryptographic disk devices
    496 #pseudo-device	raid		8	# RAIDframe disk driver
    497 #options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
    498 # Options to enable various other RAIDframe RAID types.
    499 # options	RF_INCLUDE_EVENODD=1
    500 # options	RF_INCLUDE_RAID5_RS=1
    501 # options	RF_INCLUDE_PARITYLOGGING=1
    502 # options	RF_INCLUDE_CHAINDECLUSTER=1
    503 # options	RF_INCLUDE_INTERDECLUSTER=1
    504 # options 	RF_INCLUDE_PARITY_DECLUSTERING=1
    505 # options	RF_INCLUDE_PARITY_DECLUSTERING_DS=1
    506 pseudo-device	md		1	# memory disk device (ramdisk)
    507 pseudo-device	vnd		4	# disk-like interface to files
    508 
    509 # network pseudo-devices
    510 pseudo-device	loop			# network loopback
    511 pseudo-device	bpfilter	8	# Berkeley packet filter
    512 pseudo-device	ipfilter		# IP filter (firewall) and NAT
    513 pseudo-device	ppp		2	# Point-to-Point Protocol
    514 pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
    515 pseudo-device	sl		2	# Serial Line IP
    516 pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    517 pseudo-device	tun		2	# network tunneling over tty
    518 pseudo-device	gre		2	# generic L3 over IP tunnel
    519 pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
    520 #pseudo-device	faith		2	# IPv[46] tcp relay translation i/f
    521 #pseudo-device	stf		2	# 6to4 IPv6 over IPv4 encapsulation
    522 pseudo-device	vlan			# IEEE 802.1q encapsulation
    523 pseudo-device	bridge			# simple inter-network bridging
    524 #options	BRIDGE_IPF		# bridge uses IP/IPv6 pfil hooks too
    525 
    526 # miscellaneous pseudo-devices
    527 pseudo-device	pty			# pseudo-terminals
    528 pseudo-device	tb		1	# tablet line discipline
    529 #pseudo-device	sequencer	1	# MIDI sequencer
    530 pseudo-device	rnd			# /dev/random and in-kernel generator
    531 #options 	RND_COM			# use "com" randomness as well
    532 pseudo-device	clockctl		# user control of clock subsystem
    533 pseudo-device	ksyms			# /dev/ksyms
    534 #pseudo-device	pf			# PF packet filter
    535 #pseudo-device	pflog			# PF log if
    536 
    537 # a pseudo device needed for Coda	# also needs CODA (above)
    538 #pseudo-device	vcoda		4	# coda minicache <-> venus comm.
    539 
    540 # wscons pseudo-devices
    541 pseudo-device	wsmux			# mouse & keyboard multiplexor
    542 pseudo-device	wsfont
    543