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GENERIC revision 1.49
      1 # $NetBSD: GENERIC,v 1.49 2003/08/06 12:32:06 bouyer 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/cats/conf/std.cats"
     22 
     23 options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
     24 
     25 # estimated number of users
     26 
     27 maxusers	32
     28 
     29 # Standard system options
     30 
     31 options 	INSECURE	# disable kernel securelevel
     32 
     33 options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
     34 options 	NTP		# NTP phase/frequency locked loop
     35 
     36 # Enable experimental buffer queue strategy for better responsiveness under 
     37 # high disk I/O load. Use it with caution - it's not proven to be stable yet.
     38 #options 	NEW_BUFQ_STRATEGY
     39 
     40 # CPU options
     41 
     42 # For StrongARM systems
     43 options 	CPU_SA110	# Support the SA110 core
     44 makeoptions	COPTS="-O2 -march=armv4 -mtune=strongarm"
     45 
     46 # FPA options
     47 
     48 #options 	ARMFPE		# ARM Ltd FPE
     49 
     50 # File systems
     51 
     52 file-system	FFS		# UFS
     53 file-system	LFS		# log-structured file system
     54 file-system	MFS		# memory file system
     55 file-system	NFS		# Network file system
     56 file-system 	ADOSFS		# AmigaDOS-compatible file system
     57 file-system 	EXT2FS		# second extended file system (linux)
     58 file-system	CD9660		# ISO 9660 + Rock Ridge file system
     59 file-system	MSDOSFS		# MS-DOS file system
     60 file-system	FDESC		# /dev/fd
     61 file-system	KERNFS		# /kern
     62 file-system	NULLFS		# loopback file system
     63 file-system 	OVERLAY		# overlay filesystem
     64 file-system	PORTAL		# portal filesystem (still experimental)
     65 file-system	PROCFS		# /proc
     66 file-system	UMAPFS		# NULLFS + uid and gid remapping
     67 file-system	UNION		# union file system
     68 file-system	CODA		# Coda File System; also needs vcode (below)
     69 
     70 # File system options
     71 options 	QUOTA		# UFS quotas
     72 #options 	FFS_EI		# FFS Endian Independant support
     73 options 	NFSSERVER
     74 options 	SOFTDEP		# FFS soft updates support
     75 
     76 # Networking options
     77 
     78 #options 	GATEWAY		# packet forwarding
     79 options 	INET		# IP + ICMP + TCP + UDP
     80 options 	INET6		# IPV6
     81 #options 	IPSEC		# IP security
     82 #options 	IPSEC_ESP	# IP security (encryption part; define w/ IPSEC)
     83 #options 	IPSEC_DEBUG	# debug for IP security
     84 #options 	MROUTING	# IP multicast routing
     85 options 	NS		# XNS
     86 #options 	NSIP		# XNS tunneling over IP
     87 options 	ISO,TPIP	# OSI
     88 #options 	EON		# OSI tunneling over IP
     89 options 	CCITT,LLC,HDLC	# X.25
     90 options 	NETATALK	# AppleTalk networking
     91 options 	PFIL_HOOKS	# pfil(9) packet filter hooks
     92 options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
     93 options 	PPP_DEFLATE	# Deflate compression support for PPP
     94 options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
     95 options 	IPFILTER_LOG	# ipmon(8) log support
     96 #options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
     97 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
     98 
     99 options 	NFS_BOOT_BOOTP
    100 options 	NFS_BOOT_DHCP
    101 #options 	NFS_BOOT_BOOTPARAM
    102 
    103 # Compatibility options
    104 
    105 #options 	COMPAT_43	# 4.3BSD compatibility.
    106 options 	COMPAT_14	# NetBSD 1.4 compatibility.
    107 options 	COMPAT_13	# NetBSD 1.3 compatibility.
    108 #options 	COMPAT_12	# NetBSD 1.2 compatibility.
    109 #options 	COMPAT_11	# NetBSD 1.1 compatibility.
    110 #options 	COMPAT_10	# NetBSD 1.0 compatibility.
    111 #options 	COMPAT_09	# NetBSD 0.9 compatibility.
    112 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
    113 
    114 # Shared memory options
    115 
    116 options 	SYSVMSG		# System V-like message queues
    117 options 	SYSVSEM		# System V-like semaphores
    118 #options 	SEMMNI=10	# number of semaphore identifiers
    119 #options 	SEMMNS=60	# number of semaphores in system
    120 #options 	SEMUME=10	# max number of undo entries per process
    121 #options 	SEMMNU=30	# number of undo structures in system
    122 options 	SYSVSHM		# System V-like memory sharing
    123 #options 	SHMMAXPGS=1024	# 1024 pages is the default
    124 
    125 # Device options
    126 
    127 #options 	MEMORY_DISK_HOOKS	# boottime setup of ramdisk
    128 #options 	MEMORY_DISK_ROOT_SIZE=3400	# Size in blocks
    129 #options 	MEMORY_DISK_IS_ROOT	# use memory disk as root
    130 
    131 # Miscellaneous kernel options
    132 options 	KTRACE		# system call tracing, a la ktrace(1)
    133 options 	SYSTRACE	# system call vetting via systrace(1)
    134 options 	IRQSTATS	# manage IRQ statistics
    135 #options 	LKM		# loadable kernel modules
    136 #options 	KMEMSTATS	# kernel memory statistics
    137 options 	SCSIVERBOSE	# Verbose SCSI errors
    138 options 	PCIVERBOSE	# Verbose PCI descriptions
    139 options 	MIIVERBOSE	# verbose PHY autoconfig messages
    140 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    141 options 	USBVERBOSE	# verbose USB device autoconfig messages
    142 options 	PMAP_STATIC_L1S=128
    143 options 	USERCONF	# userconf(4) support
    144 #options	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
    145 
    146 # if set defines a keycode for the fcom console to break into ddb.
    147 # 0x40 == @, see man ascii(7)
    148 #options 	DDB_KEYCODE=0x40
    149 
    150 # wscons options
    151 #options 	WSEMUL_SUN		# sun terminal emulation
    152 options 	WSEMUL_VT100		# VT100 / VT220 emulation
    153 # different kernel output - see dev/wscons/wsdisplayvar.h
    154 options 	WS_KERNEL_FG=WSCOL_GREEN
    155 options 	WSDISPLAY_COMPAT_PCVT		# emulate some ioctls
    156 options 	WSDISPLAY_COMPAT_SYSCONS	# emulate some ioctls
    157 options 	WSDISPLAY_COMPAT_USL		# VT handling
    158 options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
    159 # see dev/wscons/wskbdmap_mfii.h for implemented layouts
    160 #options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
    161 # the following enables some functions to get mouse console support.
    162 # if you want a really secure system, it may be better not to enable them,
    163 # see wsmoused(8), section SECURITY CONSIDERATIONS for more info.
    164 #options 	WSDISPLAY_CHARFUNCS		# mouse console support
    165 
    166 # Development and Debugging options
    167 
    168 #options 	ARM700BUGTRACK	# track the ARM700 swi bug
    169 #options 	PORTMASTER	# Enable PortMaster only options
    170 options 	DIAGNOSTIC	# internally consistency checks
    171 #options 	PMAP_DEBUG	# Enable pmap_debug_level code
    172 #options 	IPKDB		# remote kernel debugging
    173 options 	DDB		# in-kernel debugger
    174 options 	DDB_HISTORY_SIZE=100	# Enable history editing in DDB
    175 #makeoptions	DEBUG="-g"	# compile full symbol table
    176 options		SYMTAB_SPACE=380000
    177 
    178 config		netbsd	root on ? type ?
    179 
    180 # The main bus device
    181 mainbus0 at root
    182 
    183 # The boot cpu
    184 cpu0 at mainbus?
    185 
    186 # Core logic
    187 footbridge0	at mainbus?
    188 
    189 # footbridge uart
    190 fcom0	at footbridge?
    191 
    192 # system clock via footbridge
    193 #clock*	at footbridge?
    194 
    195 # time-of-day device via footbridge or RTC
    196 todclock0	at todservice?
    197 
    198 # PCI bus support
    199 # PCI bus via footbridge
    200 pci0	at footbridge?			# PCI bus
    201 
    202 pci*	at ppb? bus ?
    203 
    204 # PCI bridges
    205 ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    206 # XXX 'puc's aren't really bridges, but there's no better place for them here
    207 #puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
    208 
    209 # PCI serial interfaces
    210 #com*	at puc? port ?			# 16x50s on "universal" comm boards
    211 #cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
    212 
    213 # PCI parallel printer interfaces
    214 #lpt*	at puc? port ?			# || ports on "universal" comm boards
    215 
    216 # PCI SCSI Controllers and Buses
    217 adv*	at pci? dev ? function ?	# AdvanSys 1200[A,B], ULTRA SCSI
    218 scsibus* at adv?
    219 #adw*	at pci? dev ? function ?	# AdvanSys 9xxUW SCSI
    220 #scsibus* at adw?
    221 ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI controllers
    222 scsibus* at ahc?
    223 #bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
    224 #scsibus* at bha?
    225 iha*	at pci? dev ? function ?	# Initio INIC-940/950 SCSI
    226 scsibus* at iha?
    227 isp*	at pci? dev ? function ?	# Qlogic ISP 10x0 SCSI controllers
    228 scsibus* at isp?
    229 pcscp*	at pci? dev ? function ?	# AMD 53c974 PCscsi-PCI SCSI
    230 scsibus* at pcscp?
    231 siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
    232 scsibus* at siop?
    233 esiop*	at pci? dev ? function ?	# NCR 53c875 SCSI and newer
    234 scsibus* at esiop?
    235 
    236 # SCSI devices
    237 sd*	at scsibus? target ? lun ?	# SCSI disk drives
    238 st*	at scsibus? target ? lun ?	# SCSI tape drives
    239 cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    240 #ch*	at scsibus? target ? lun ?	# SCSI auto-changers
    241 #uk*	at scsibus? target ? lun ?	# SCSI unknown device
    242 #ss*	at scsibus? target ? lun ?	# SCSI scanner
    243 
    244 # PCI IDE Controllers and Devices
    245 # PCI IDE controllers - see pciide(4) for supported hardware.
    246 # The 0x0001 flag force the driver to use DMA, even if the driver doesn't know
    247 # how to set up DMA modes for this chip. This may work, or may cause
    248 # a machine hang with some controllers.
    249 pciide* at pci? dev ? function ? flags 0x0000
    250 
    251 # IDE drives
    252 # Flags are used only with controllers that support DMA operations
    253 # and mode settings (e.g. some pciide controllers)
    254 # The lowest order four bits (rightmost digit) of the flags define the PIO
    255 # mode to use, the next set of four bits the DMA mode and the third set the
    256 # UltraDMA mode. For each set of four bits, the 3 lower bits define the mode
    257 # to use, and the last bit must be 1 for this setting to be used.
    258 # For DMA and UDMA, 0xf (1111) means 'disable'.
    259 # 0x0fac means 'use PIO mode 4, DMA mode 2, disable UltraDMA'.
    260 # (0xc=1100, 0xa=1010, 0xf=1111)
    261 # 0x0000 means "use whatever the drive claims to support".
    262 wd*	at pciide? channel ? drive ? flags 0x0000	# the drives themselves
    263 
    264 # ATAPI bus support
    265 atapibus* at pciide? channel ?
    266 
    267 # ATAPI devices
    268 cd*	at atapibus? drive ? flags 0x0000	# ATAPI CD-ROM drives
    269 sd*	at atapibus? drive ? flags 0x0000	# ATAPI disk drives
    270 uk*	at atapibus? drive ? flags 0x0000	# ATAPI unknown
    271 
    272 # PCI network interfaces
    273 #en*	at pci? dev ? function ?	# ENI/Adaptec ATM
    274 ep*	at pci? dev ? function ?	# 3C590 ethernet cards
    275 ex*	at pci? dev ? function ?	# 3Com 90x[B]
    276 epic*	at pci? dev ? function ?	# SMC EPIC/100 Ethernet
    277 #esh*	at pci? dev ? function ?	# Essential HIPPI card
    278 #fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
    279 fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    280 #le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
    281 ne*	at pci? dev ? function ?	# NE2000 compat ethernet
    282 #ntwoc*	at pci? dev ? function ?	# Riscom/N2 PCI Sync Serial
    283 sip*	at pci? dev ? function ?	# SiS 900 Ethernet
    284 #tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
    285 tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
    286 vr*	at pci? dev ? function ?	# VIA Rhine Fast Ethernet
    287 #lmc*	at pci? dev ? function ?	# Lan Media Corp SSI/HSSI/DS3
    288 rtk*	at pci? dev ? function ?	# Realtek 8129/8139
    289 
    290 # MII/PHY support
    291 acphy*	at mii? phy ?			# DAltima AC101 and AMD Am79c874 PHYs
    292 amhphy*	at mii? phy ?			# AMD 79c901 Ethernet PHYs
    293 bmtphy*	at mii? phy ?			# Broadcom BCM5201 and BCM5202 PHYs
    294 brgphy*	at mii? phy ?			# Broadcom BCM5400-family PHYs
    295 dmphy*	at mii? phy ?			# Davicom DM9101 PHYs
    296 exphy*	at mii? phy ?			# 3Com internal PHYs
    297 glxtphy* at mii? phy ?			# Level One LXT-1000 PHYs
    298 gphyter* at mii? phy ?			# NS83861 Gig-E PHY
    299 icsphy*	at mii? phy ?			# Integrated Circuit Systems ICS189x
    300 inphy*	at mii? phy ?			# Intel 82555 PHYs
    301 iophy*	at mii? phy ?			# Intel 82553 PHYs
    302 lxtphy*	at mii? phy ?			# Level One LXT-970 PHYs
    303 makphy*	at mii? phy ?			# Marvell Semiconductor 88E1000 PHYs
    304 nsphy*	at mii? phy ?			# NS83840 PHYs
    305 nsphyter* at mii? phy ?			# NS83843 PHYs
    306 pnaphy*	at mii? phy ?			# generic HomePNA PHYs
    307 qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
    308 sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
    309 tlphy*	at mii? phy ?			# ThunderLAN PHYs
    310 tqphy*	at mii? phy ?			# TDK Semiconductor PHYs
    311 ukphy*	at mii? phy ?			# generic unknown PHYs
    312 urlphy*	at mii? phy ?			# Realtek RTL8150L internal PHYs
    313 
    314 # USB Controller and Devices
    315 
    316 # PCI USB controllers
    317 ohci*	at pci?				# Open Host Controller
    318 
    319 # USB bus support
    320 usb*	at ohci?
    321 
    322 # USB Hubs
    323 uhub*	at usb?
    324 uhub*	at uhub? port ? configuration ? interface ?
    325 
    326 # USB HID device
    327 uhidev*	at uhub? port ? configuration ? interface ?
    328 
    329 # USB Mice
    330 ums*	at uhidev? reportid ?
    331 wsmouse*	at ums?
    332 
    333 # USB Keyboards
    334 ukbd*	at uhidev? reportid ?
    335 wskbd*	at ukbd? console ?
    336 
    337 # USB Generic HID devices
    338 uhid*	at uhidev? reportid ?
    339 
    340 # USB Printer
    341 ulpt*	at uhub? port ? configuration ? interface ?
    342 
    343 # USB Modem
    344 umodem*	at uhub? port ? configuration ?
    345 ucom*	at umodem?
    346 
    347 # USB Mass Storage
    348 umass*	at uhub? port ? configuration ? interface ?
    349 atapibus* at umass? channel ?
    350 scsibus* at umass? channel ?
    351 
    352 # USB audio
    353 uaudio*	at uhub? port ? configuration ?
    354 audio*	at uaudio?
    355 
    356 # USB MIDI
    357 umidi*	at uhub? port ? configuration ?
    358 midi*	at umidi?
    359 
    360 # USB Ethernet adapters
    361 aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
    362 cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
    363 kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
    364 uax*	at uhub? port ?		# ASIX AX88172 based adapters
    365 url*	at uhub? port ?		# Realtek RTL8150L based adapters
    366 
    367 # Prolofic PL2301/PL2302 host-to-host adapter
    368 upl*	at uhub? port ?
    369 
    370 # Serial adapters
    371 # FTDI FT8U100AX serial adapter
    372 uftdi*	at uhub? port ?
    373 ucom*	at uftdi? portno ?
    374 
    375 uplcom*	at uhub? port ?		# I/O DATA USB-RSAQ2 serial adapter
    376 ucom*	at uplcom? portno ?
    377 
    378 umct*	at uhub? port ?		# MCT USB-RS232 serial adapter
    379 ucom*	at umct? portno ?
    380 
    381 # Diamond Multimedia Rio 500
    382 urio*	at uhub? port ?
    383 
    384 # USB Handspring Visor
    385 uvisor*	at uhub? port ?
    386 ucom*	at uvisor?
    387 
    388 # USB scanners
    389 uscanner* at uhub? port ?
    390 
    391 # USB scanners that use SCSI emulation, e.g., HP5300
    392 usscanner* at uhub? port ?
    393 scsibus* at usscanner? channel ?
    394 
    395 # Y@P firmware loader
    396 uyap* at uhub? port ?
    397 
    398 # USB Generic driver
    399 ugen* at uhub? port ?
    400 
    401 # Audio Devices
    402 
    403 # PCI audio devices
    404 #eap*	at pci? dev ? function ?	# Ensoniq AudioPCI
    405 #sv*	at pci? dev ? function ?	# S3 SonicVibes
    406 
    407 # Audio support
    408 #audio*	at eap?
    409 #audio*	at sv?
    410 
    411 vga*		at pci?
    412 wsdisplay*	at vga? console ?
    413 
    414 # ISA bus bridging
    415 
    416 pcib*	at pci? dev ? function ?	# PCI-ISA bridge
    417 isa*	at pcib?			# ISA bus
    418 
    419 # ISA Plug-and-Play bus support
    420 isapnp0	at isa?
    421 
    422 # wscons
    423 pckbc0	at isa?			# pc keyboard controller
    424 pckbd*	at pckbc?		# PC keyboard
    425 pms*		at pckbc?		# PS/2 mouse for wsmouse
    426 wskbd*		at pckbd? console ?
    427 wsmouse*	at pms?
    428 
    429 pcppi0	at isa?
    430 sysbeep0	at pcppi?
    431 
    432 # ISA Plug-and-Play serial interfaces
    433 com*	at isapnp?			# Modems and serial boards
    434 
    435 # ISA Plug-and-Play network interfaces
    436 ep*	at isapnp?			# 3Com 3c509 Ethernet
    437 fmv*	at isapnp?			# Fujitsu FMV-183
    438 ne*	at isapnp?			# NE2000-compatible
    439 
    440 # ISA serial interfaces
    441 com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
    442 com1	at isa? port 0x2f8 irq 3
    443 #com2	at isa? port 0x3e8 irq 9
    444 #com3	at isa? port 0x2e8 irq 10
    445 
    446 # ISA parallel printer interfaces
    447 lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
    448 lpt1	at isa? port 0x278 irq 5
    449 #lpt2	at isa? port 0x3bc
    450 
    451 # ISA floppy
    452 #fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
    453 #fdc1	at isa? port 0x370 irq ? drq ?
    454 #fd*	at fdc? drive ?			# the drives themselves
    455 
    456 # ISA network interface
    457 #ne0	at isa? port 0x280 irq 9
    458 #ne1	at isa? port 0x300 irq 10
    459 #ep*	at isa? port ? irq ?
    460 
    461 # The spkr driver provides a simple tone interface to the built in speaker.
    462 spkr0	at pcppi?			# PC speaker
    463 
    464 dsrtc0	at isa? port 0x72		# Dallas RTC
    465 
    466 # ISA Plug-and-Play audio devices
    467 ess*	at isapnp?			# ESS Tech ES1887, ES1888, ES888 audio
    468 sb*	at isapnp?			# SoundBlaster-compatible audio
    469 wss*	at isapnp?			# Windows Sound System
    470 
    471 # OPL[23] FM syntheziers
    472 opl*	at ess?
    473 opl*	at sb?
    474 
    475 # Audio support
    476 audio*	at ess?
    477 audio*	at sb?
    478 audio*	at wss?
    479 
    480 # MPU 401 UARTs
    481 #mpu*	at sb?
    482 
    483 # MIDI support
    484 midi*	at pcppi?		# MIDI interface to the PC speaker
    485 midi*	at sb?			# SB MPU401 port
    486 midi*	at opl?			# OPL FM synth
    487 #midi*	at mpu?			# MPU 401
    488 
    489 # Joysticks
    490 
    491 # ISA Plug-and-Play joysticks
    492 joy*	at isapnp?			# Game ports (usually on audio cards)
    493 
    494 # ISA joysticks. Probe is a little strange; add only if you have one.
    495 #joy0	at isa? port 0x201
    496 
    497 # Pseudo-Devices
    498 
    499 # disk/mass storage pseudo-devices
    500 pseudo-device	ccd		2	# concatenated/striped disk devices
    501 #pseudo-device	cgd		2	# cryptographic disk devices
    502 pseudo-device	md		1	# memory disk device (ramdisk)
    503 pseudo-device	vnd		4	# disk-like interface to files
    504 
    505 # network pseudo-devices
    506 pseudo-device	bpfilter	4	# Berkeley packet filter
    507 pseudo-device	ipfilter		# IP filter (firewall) and NAT
    508 pseudo-device	loop			# network loopback
    509 pseudo-device	ppp		2	# Point-to-Point Protocol
    510 pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
    511 pseudo-device	sl		2	# Serial Line IP
    512 pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    513 pseudo-device	tun		2	# network tunneling over tty
    514 pseudo-device	gre		2	# generic L3 over IP tunnel
    515 pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
    516 #pseudo-device	faith		1	# IPv[46] tcp relay translation i/f
    517 #pseudo-device	stf		1	# 6to4 IPv6 over IPv4 encapsulation
    518 pseudo-device	vlan			# IEEE 802.1q encapsulation
    519 pseudo-device	bridge			# simple inter-network bridging
    520 #options	BRIDGE_IPF		# bridge uses IP/IPv6 pfil hooks too
    521 
    522 # miscellaneous pseudo-devices
    523 pseudo-device	pty			# pseudo-terminals
    524 pseudo-device	tb		1	# tablet line discipline
    525 pseudo-device	sequencer	1	# MIDI sequencer
    526 pseudo-device	rnd			# /dev/random and in-kernel generator
    527 #options 	RND_COM			# use "com" randomness as well (BROKEN)
    528 pseudo-device	clockctl		# user control of clock subsystem
    529 
    530 # a pseudo device needed for Coda	# also needs CODA (above)
    531 pseudo-device	vcoda		4	# coda minicache <-> venus comm.
    532 
    533 # mouse & keyboard multiplexor pseudo-devices
    534 pseudo-device	wsmux
    535 pseudo-device	wsfont
    536 pseudo-device	ksyms			# /dev/ksyms
    537