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GENERIC revision 1.79
      1 # $NetBSD: GENERIC,v 1.79 2004/06/26 21:51:04 kleink 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: 1.79 $"
     28 
     29 maxusers	32
     30 
     31 # Platform support
     32 options 	PLATFORM_IBM_6015		# IBM RS/6000 40P
     33 options 	PLATFORM_IBM_6040		# IBM ThinkPad 820
     34 options 	PLATFORM_IBM_6050		# IBM Personal Power Series 830
     35 options 	PLATFORM_IBM_7248		# IBM RS/6000 7248-100/120/133
     36 options 	PLATFORM_IBM_7043_140		# IBM RS/6000 43P 7043-140
     37 options 	PLATFORM_MOTOROLA_ULMB60XA	# Motorola ULMB60xA (?)
     38 
     39 options 	OPENPIC				# OpenPIC support (7043-140)
     40 
     41 # Standard system options
     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 options 	SYSTRACE	# system call vetting via systrace(1)
     48 
     49 options 	SYSVMSG		# System V-like message queues
     50 options 	SYSVSEM		# System V-like semaphores
     51 #options 	SEMMNI=10	# number of semaphore identifiers
     52 #options 	SEMMNS=60	# number of semaphores in system
     53 #options 	SEMUME=10	# max number of undo entries per process
     54 #options 	SEMMNU=30	# number of undo structures in system
     55 options 	SYSVSHM		# System V-like memory sharing
     56 #options 	SHMMAXPGS=1024	# 1024 pages is the default
     57 
     58 options 	LKM		# loadable kernel modules
     59 
     60 options 	USERCONF	# userconf(4) support
     61 #options	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
     62 
     63 # Enable experimental buffer queue strategy for better responsiveness under 
     64 # high disk I/O load. Use it with caution - it's not proven to be stable yet.
     65 #options 	NEW_BUFQ_STRATEGY
     66 
     67 # Diagnostic/debugging support options
     68 #options 	DIAGNOSTIC	# cheap kernel consistency checks
     69 #options 	DEBUG		# expensive debugging checks/support
     70 #options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
     71 options 	DDB		# in-kernel debugger
     72 #options 	DDB_HISTORY_SIZE=100	# Enable history editing in DDB
     73 #makeoptions	DEBUG="-g"
     74 
     75 # Compatibility options
     76 options 	COMPAT_13	# NetBSD 1.3,
     77 options 	COMPAT_14	# NetBSD 1.4,
     78 options 	COMPAT_15	# NetBSD 1.5,
     79 options 	COMPAT_16	# NetBSD 1.6,
     80 options 	COMPAT_43	# and 4.3BSD
     81 #options 	COMPAT_LINUX	# Linux binary compatibility
     82 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
     83 
     84 # File systems
     85 file-system 	FFS		# UFS
     86 file-system	EXT2FS		# second extended file system (linux)
     87 #file-system	LFS		# log-structured file system
     88 file-system 	MFS		# memory file system
     89 file-system 	NFS		# Network File System client
     90 #file-system	NTFS		# Windows/NT file system (experimental)
     91 file-system 	CD9660		# ISO 9660 + Rock Ridge file system
     92 file-system 	MSDOSFS		# MS-DOS file system
     93 #file-system 	FDESC		# /dev/fd
     94 file-system 	KERNFS		# /kern
     95 file-system 	NULLFS		# loopback file system
     96 #file-system	OVERLAY		# overlay 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 #file-system	CODA		# Coda File System; also needs vcoda (below)
    102 
    103 # File system options
    104 options 	QUOTA		# UFS quotas
    105 #options 	FFS_EI		# FFS Endian Independant support
    106 options 	SOFTDEP		# FFS soft updates support.
    107 options 	NFSSERVER	# Network File System server
    108 #options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
    109  				# immutable) behave as system flags.
    110 
    111 # Networking options
    112 #options 	GATEWAY		# packet forwarding
    113 options 	INET		# IP + ICMP + TCP + UDP
    114 options 	INET6		# IPv6
    115 #options 	IPSEC		# IP security
    116 #options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
    117 #options 	IPSEC_DEBUG	# debug for IP security
    118 #options 	MROUTING	# IP multicast routing
    119 #options 	NETATALK	# AppleTalk networking protocols
    120 options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
    121 options 	PPP_DEFLATE	# Deflate compression support for PPP
    122 options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
    123 options 	PFIL_HOOKS	# pfil(9) packet filter hooks
    124 options 	IPFILTER_LOG	# ipmon(8) log support
    125 #options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
    126 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    127 
    128 #options 	ALTQ		# Manipulate network interfaces' output queues
    129 #options 	ALTQ_BLUE	# Stochastic Fair Blue
    130 #options 	ALTQ_CBQ	# Class-Based Queueing
    131 #options 	ALTQ_CDNR	# Diffserv Traffic Conditioner
    132 #options 	ALTQ_FIFOQ	# First-In First-Out Queue
    133 #options 	ALTQ_FLOWVALVE	# RED/flow-valve (red-penalty-box)
    134 #options 	ALTQ_HFSC	# Hierarchical Fair Service Curve
    135 #options 	ALTQ_LOCALQ	# Local queueing discipline
    136 #options 	ALTQ_PRIQ	# Priority Queueing
    137 #options 	ALTQ_RED	# Random Early Detection
    138 #options 	ALTQ_RIO	# RED with IN/OUT
    139 #options 	ALTQ_WFQ	# Weighted Fair Queueing
    140 
    141 # These options enable verbose messages for several subsystems.
    142 # Warning, these may compile large string tables into the kernel!
    143 #options 	MIIVERBOSE	# verbose PHY autoconfig messages
    144 options 	PCIVERBOSE	# verbose PCI device autoconfig messages
    145 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    146 #options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
    147 options 	SCSIVERBOSE	# human readable SCSI error messages
    148 #options 	USBVERBOSE	# verbose USB device autoconfig messages
    149 #options 	RESIDUAL_DATA_DUMP	# verbosely dump residual data
    150 
    151 #options 	NFS_BOOT_BOOTP
    152 options 	NFS_BOOT_BOOTPARAM
    153 options 	NFS_BOOT_DHCP
    154 
    155 #
    156 # wscons options
    157 #
    158 # builtin terminal emulations
    159 options 	WSEMUL_VT100		# VT100 / VT220 emulation
    160 # different kernel output - see dev/wscons/wsdisplayvar.h
    161 options 	WS_KERNEL_FG=WSCOL_GREEN
    162 #options 	WS_KERNEL_BG=WSCOL_BLACK
    163 # see dev/pckbc/wskbdmap_mfii.c for implemented layouts
    164 #options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
    165 # allocate a number of virtual screens at autoconfiguration time
    166 #options 	WSDISPLAY_DEFAULTSCREENS=4
    167 # use a large software cursor that doesn't blink
    168 options 	PCDISPLAY_SOFTCURSOR
    169 
    170 # Kernel root file system and dump configuration.
    171 config	netbsd	root on ? type ?
    172 #config	netbsd	root on tlp0 type nfs
    173 #config	netbsd	root on pcn0 type nfs
    174 
    175 
    176 #
    177 # Device configuration
    178 #
    179 
    180 mainbus0 at root
    181 cpu0	at mainbus0
    182 
    183 
    184 # Basic Bus Support
    185 
    186 # PCI bus support
    187 pci0	at mainbus0 bus ?
    188 pci*	at pchb? bus ?
    189 pci*	at ppb? bus ?
    190 
    191 options 	PCI_NETBSD_CONFIGURE
    192 
    193 # PCI bridges
    194 pchb*	at pci? dev ? function ?	# PCI-Host bridges
    195 ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    196 pcib*	at pci? dev ? function ?	# PCI-ISA bridges
    197 
    198 # ISA bus support
    199 isa*	at pcib?			# ISA on PCI-ISA bridge
    200 
    201 # PCMCIA bus support
    202 pcmcia* at pcic? controller ? socket ?
    203 
    204 # ISA PCMCIA controllers
    205 pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
    206 
    207 #options 	PCIC_ISA_INTR_ALLOC_MASK=0x4a00 # free irq 9,11,14
    208 #options 	PCIC_ISA_ALLOC_IOBASE=0x0400
    209 #options 	PCIC_ISA_ALLOC_IOSIZE=0x0100
    210 
    211 # ISA Plug-and-Play bus support
    212 #isapnp0	at isa?
    213 
    214 # on-board I/O for IBM Personal Power Series 830 IDE controller
    215 obio0	at mainbus0
    216 
    217 
    218 # Console Devices
    219 
    220 # wscons
    221 pckbc0		at isa?			# pc keyboard controller
    222 pckbd*		at pckbc?		# PC keyboard
    223 pms*		at pckbc?		# PS/2 mouse for wsmouse
    224 vga*		at pci?
    225 wsdisplay*	at vga? console ?
    226 wskbd*		at pckbd? console ?
    227 wsmouse*	at pms? mux 0
    228 
    229 pcppi0	at isa?				# PC prog. periph. interface
    230 isabeep0 at pcppi?			# "keyboard" beep
    231 
    232 mcclock0 at isa? port 0x70		# mc146818 and compatible
    233 mkclock0 at isa? port 0x74		# mk48t18 and compatible
    234 
    235 
    236 # Cryptographic Devices
    237 
    238 # PCI cryptographic devices
    239 #hifn*	at pci? dev ? function ?	# Hifn 7755/7811/795x
    240 #ubsec*	at pci? dev ? function ?	# Broadcom 5501/5601/580x/582x
    241 
    242 
    243 # Serial Devices
    244 
    245 # ISA serial interfaces
    246 com0	at isa? port 0x3f8 irq 4	# standard PC serial ports
    247 com1	at isa? port 0x2f8 irq 3
    248 
    249 # PCMCIA serial interfaces
    250 com*	at pcmcia? function ?		# Modems and serial cards
    251 
    252 #pcmcom* at pcmcia? function ?		# PCMCIA multi-port serial cards
    253 #com*	at pcmcom? slave ?		# ...and the slave devices
    254 
    255 
    256 # Parallel Printer Interfaces
    257 
    258 # ISA parallel printer interfaces
    259 lpt0	at isa? port 0x3bc irq 7	# standard PC parallel ports
    260 
    261 
    262 # SCSI Controllers and Devices
    263 
    264 # PCI SCSI controllers
    265 #adw*	at pci? dev ? function ?	# AdvanSys 9x0UW[D], 3940U[2,3]W SCSI
    266 ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
    267 #iha*	at pci? dev ? function ?	# Initio INIC-940/950 SCSI
    268 #pcscp*	at pci? dev ? function ?	# AMD 53c974 PCscsi-PCI SCSI
    269 siop*	at pci? dev ? function ?	# Symbios 53c8xx SCSI
    270 esiop*	at pci? dev ? function ?	# Symbios 53c875 SCSI and newer
    271 
    272 # PCMCIA SCSI controllers
    273 aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
    274 
    275 # SCSI bus support
    276 #scsibus* at adw?
    277 scsibus* at ahc?
    278 scsibus* at aic?
    279 #scsibus* at iha?
    280 #scsibus* at pcscp?
    281 scsibus* at siop?
    282 scsibus* at esiop?
    283 
    284 # SCSI devices
    285 sd*	at scsibus? target ? lun ?	# SCSI disk drives
    286 st*	at scsibus? target ? lun ?	# SCSI tape drives
    287 cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    288 #ch*	at scsibus? target ? lun ?	# SCSI autochangers
    289 #ss*	at scsibus? target ? lun ?	# SCSI scanners
    290 uk*	at scsibus? target ? lun ?	# SCSI unknown
    291 
    292 
    293 # IDE and related devices
    294 
    295 # IBM Personal Power Series 830 IDE controller
    296 wdc0	at obio? port 0x1f0 irq 13
    297 wdc1	at obio? port 0x170 irq 13
    298 
    299 # ISA Plug-and-Play IDE controllers
    300 #wdc*	at isapnp?
    301 
    302 # PCMCIA IDE controllers
    303 wdc*	at pcmcia? function ?
    304 
    305 # ATA (IDE) bus support
    306 atabus* at ata?
    307 
    308 # IDE drives
    309 # Flags are used only with controllers that support DMA operations
    310 # and mode settings (e.g. some pciide controllers)
    311 # The lowest order four bits (rightmost digit) of the flags define the PIO
    312 # mode to use, the next set of four bits the DMA mode and the third set the
    313 # UltraDMA mode. For each set of four bits, the 3 lower bits define the mode
    314 # to use, and the last bit must be 1 for this setting to be used.
    315 # For DMA and UDMA, 0xf (1111) means 'disable'.
    316 # 0x0fac means 'use PIO mode 4, DMA mode 2, disable UltraDMA'.
    317 # (0xc=1100, 0xa=1010, 0xf=1111)
    318 # 0x0000 means "use whatever the drive claims to support".
    319 wd*	at atabus? drive ? flags 0x0000
    320 
    321 # ATAPI bus support
    322 atapibus* at atapi?
    323 
    324 # ATAPI devices
    325 # flags have the same meaning as for IDE drives.
    326 cd*	at atapibus? drive ? flags 0x0000	# ATAPI CD-ROM drives
    327 sd*	at atapibus? drive ? flags 0x0000	# ATAPI disk drives
    328 uk*	at atapibus? drive ? flags 0x0000	# ATAPI unknown
    329 
    330 # Miscellaneous mass storage devices
    331 
    332 # ISA Floppy
    333 #fdc0 at isa? port 0x3f0 irq 6 drq 2	# standard ISA floppy controller
    334 #fd0 at fdc0 drive ?
    335 
    336 # Network Interfaces
    337 
    338 # PCI network interfaces
    339 ep*	at pci? dev ? function ?	# 3Com 3c59x
    340 ex*	at pci? dev ? function ?	# 3Com 3c90x[BC]
    341 fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    342 ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
    343 pcn*	at pci? dev ? function ?	# AMD PCnet-PCI Ethernet
    344 rtk*	at pci? dev ? function ?	# Realtek 8129/8139
    345 sip*	at pci? dev ? function ?	# SiS 900/DP83815 Ethernet
    346 tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
    347 vr*	at pci? dev ? function ?	# VIA Rhine Fast Ethernet
    348 
    349 # ISA network interfaces
    350 #ep*	at isa? port ? irq ?		# 3Com 3c509 Ethernet
    351 #ne0	at isa? port 0x280 irq 9	# NE2000-compatible Ethernet
    352 #ne1	at isa? port 0x300 irq 10
    353 #we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
    354 we1	at isa? port 0x300 iomem 0xe4000 irq 11
    355 
    356 # ISA Plug-and-Play network intefaces
    357 #ep*	at isapnp?			# 3Com 3c509 Ethernet
    358 #ne*	at isapnp?			# NE2000-compatible Ethernet
    359 
    360 # PCMCIA network interfaces
    361 ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
    362 ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
    363 
    364 # MII/PHY support
    365 dmphy*	at mii? phy ?			# Davicom DM9101 PHYs
    366 exphy*	at mii? phy ?			# 3Com internal PHYs
    367 icsphy* at mii? phy ?			# Integrated Circuit Systems ICS189x
    368 inphy*	at mii? phy ?			# Intel 82555 PHYs
    369 iophy*	at mii? phy ?			# Intel 82553 PHYs
    370 lxtphy* at mii? phy ?			# Level One LXT-970 PHYs
    371 nsphy*	at mii? phy ?			# NS83840 PHYs
    372 nsphyter* at mii? phy ?			# NS83843 PHYs
    373 qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
    374 sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
    375 tlphy*	at mii? phy ?			# ThunderLAN PHYs
    376 tqphy*	at mii? phy ?			# TDK Semiconductor PHYs
    377 ukphy*	at mii? phy ?			# generic unknown PHYs
    378 
    379 
    380 # USB Controller and Devices
    381 
    382 # PCI USB controllers
    383 #uhci*	at pci? dev ? function ?	# Universal Host Controller (Intel)
    384 #ohci*	at pci? dev ? function ?	# Open Host Controller
    385 
    386 # USB bus support
    387 #usb*	at uhci?
    388 #usb*	at ohci?
    389 
    390 # USB Hubs
    391 #uhub*	at usb?
    392 #uhub*	at uhub? port ? configuration ? interface ?
    393 
    394 # USB HID device
    395 #uhidev*	at uhub? port ? configuration ? interface ?
    396 
    397 # USB Mice
    398 #ums*	at uhidev? reportid ?
    399 #wsmouse* at ums? mux 0
    400 
    401 # USB Keyboards
    402 #ukbd*	at uhidev? reportid ?
    403 #wskbd*	at ukbd? console ? mux 1
    404 
    405 # USB Generic HID devices
    406 #uhid*	at uhidev? reportid ?
    407 
    408 # USB Printer
    409 #ulpt*	at uhub? port ? configuration ? interface ?
    410 
    411 # USB Modem
    412 #umodem* at uhub? port ? configuration ?
    413 #ucom*	at umodem?
    414 
    415 # USB Mass Storage
    416 #umass*	at uhub? port ? configuration ? interface ?
    417 #scsibus* at umass? channel ?
    418 #atapibus* at umass?
    419 
    420 # USB audio
    421 #uaudio* at uhub? port ? configuration ?
    422 
    423 # USB Ethernet adapters
    424 #aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
    425 #cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
    426 #kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
    427 #uax*	at uhub? port ?		# ASIX AX88172 based adapters
    428 #url*	at uhub? port ?		# Realtek RTL8150L based adapters
    429 #udav*	at uhub? port ?		# Davicom DM9601 based adapters
    430 
    431 # Prolofic PL2301/PL2302 host-to-host adapter
    432 #upl*	at uhub? port ?
    433 
    434 # Serial adapters
    435 #uftdi*	at uhub? port ?		# FTDI FT8U100AX serial adapter
    436 #ucom*	at uftdi? portno ?
    437 
    438 #umct*	at uhub? port ?		# MCT USB-RS232 serial adapter
    439 #ucom*	at umct? portno ?
    440 
    441 #uplcom* at uhub? port ?	# I/O DATA USB-RSAQ2 serial adapter
    442 #ucom*	at uplcom? portno ?
    443 
    444 #uvscom* at uhub? port ?	# SUNTAC Slipper U VS-10U serial adapter
    445 #ucom*	at uvscom? portno ?
    446 
    447 # Diamond Multimedia Rio 500
    448 #urio*	at uhub? port ?
    449 
    450 # USB Handspring Visor
    451 #uvisor* at uhub? port ?
    452 #ucom*	at uvisor?
    453 
    454 # Y@P firmware loader
    455 #uyap* at uhub? port ?
    456 
    457 # USB Generic driver
    458 #ugen*	at uhub? port ?
    459 
    460 # USB scanners
    461 #uscanner* at uhub? port ?
    462 
    463 
    464 # Audio device
    465 
    466 # ISA Plug-and-Play audio devices
    467 #wss*	at isapnp?			# CS4232
    468 
    469 # Audio support
    470 #audio*	at uaudio?
    471 #audio*	at wss?
    472 
    473 # MIDI support
    474 #midi*	at pcppi?		# MIDI interface to the PC speaker
    475 
    476 # The spkr driver provides a simple tone interface to the built in speaker.
    477 #spkr0	at pcppi?		# PC speaker
    478 
    479 
    480 # Joysticks
    481 
    482 # ISA Plug-and-Play joysticks
    483 #joy*	at isapnp?			# Game ports (usually on audio cards)
    484 
    485 # ISA joysticks. Probe is a little strange; add only if you have one.
    486 #joy0	at isa? port 0x201
    487 
    488 
    489 # Pseudo-Devices
    490 
    491 # Not yet ready -- prep lacks generic soft interrupts
    492 #pseudo-device 	crypto		# opencrypto framework
    493 
    494 # disk/mass storage pseudo-devices
    495 pseudo-device	ccd		4	# concatenated/striped disk devices
    496 #pseudo-device	cgd		4	# cryptographic disk devices
    497 #pseudo-device	raid		8	# RAIDframe disk driver
    498 #options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
    499 # Options to enable various other RAIDframe RAID types.
    500 # options	RF_INCLUDE_EVENODD=1
    501 # options	RF_INCLUDE_RAID5_RS=1
    502 # options	RF_INCLUDE_PARITYLOGGING=1
    503 # options	RF_INCLUDE_CHAINDECLUSTER=1
    504 # options	RF_INCLUDE_INTERDECLUSTER=1
    505 # options 	RF_INCLUDE_PARITY_DECLUSTERING=1
    506 # options	RF_INCLUDE_PARITY_DECLUSTERING_DS=1
    507 pseudo-device	md		1	# memory disk device (ramdisk)
    508 pseudo-device	vnd		4	# disk-like interface to files
    509 
    510 # network pseudo-devices
    511 pseudo-device	loop			# network loopback
    512 pseudo-device	bpfilter	8	# Berkeley packet filter
    513 pseudo-device	ipfilter		# IP filter (firewall) and NAT
    514 pseudo-device	ppp		2	# Point-to-Point Protocol
    515 pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
    516 pseudo-device	sl		2	# Serial Line IP
    517 pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    518 pseudo-device	tun		2	# network tunneling over tty
    519 pseudo-device	gre		2	# generic L3 over IP tunnel
    520 pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
    521 #pseudo-device	faith		2	# IPv[46] tcp relay translation i/f
    522 #pseudo-device	stf		2	# 6to4 IPv6 over IPv4 encapsulation
    523 pseudo-device	vlan			# IEEE 802.1q encapsulation
    524 pseudo-device	bridge			# simple inter-network bridging
    525 #options	BRIDGE_IPF		# bridge uses IP/IPv6 pfil hooks too
    526 
    527 # miscellaneous pseudo-devices
    528 pseudo-device	pty			# pseudo-terminals
    529 pseudo-device	tb		1	# tablet line discipline
    530 #pseudo-device	sequencer	1	# MIDI sequencer
    531 pseudo-device	rnd			# /dev/random and in-kernel generator
    532 #options 	RND_COM			# use "com" randomness as well
    533 pseudo-device	clockctl		# user control of clock subsystem
    534 pseudo-device	ksyms			# /dev/ksyms
    535 #pseudo-device	pf			# PF packet filter
    536 #pseudo-device	pflog			# PF log if
    537 
    538 # a pseudo device needed for Coda	# also needs CODA (above)
    539 #pseudo-device	vcoda		4	# coda minicache <-> venus comm.
    540 
    541 # wscons pseudo-devices
    542 pseudo-device	wsmux			# mouse & keyboard multiplexor
    543 pseudo-device	wsfont
    544