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GENERIC revision 1.45
      1 # $NetBSD: GENERIC,v 1.45 2003/02/27 19:22:39 perseant 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 	UCONSOLE	# users can use TIOCCONS (for xconsole)
     32 options 	INSECURE	# disable kernel securelevel
     33 
     34 options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
     35 options 	NTP		# NTP phase/frequency locked loop
     36 
     37 # Enable experimental buffer queue strategy for better responsiveness under 
     38 # high disk I/O load. Use it with caution - it's not proven to be stable yet.
     39 #options 	NEW_BUFQ_STRATEGY
     40 
     41 # CPU options
     42 
     43 # For StrongARM systems
     44 options 	CPU_SA110	# Support the SA110 core
     45 makeoptions	COPTS="-O2 -march=armv4 -mtune=strongarm"
     46 
     47 # FPA options
     48 
     49 #options 	ARMFPE		# ARM Ltd FPE
     50 
     51 # File systems
     52 
     53 file-system	FFS		# UFS
     54 file-system	LFS		# log-structured file system
     55 file-system	MFS		# memory file system
     56 file-system	NFS		# Network file system
     57 file-system 	ADOSFS		# AmigaDOS-compatible file system
     58 file-system 	EXT2FS		# second extended file system (linux)
     59 file-system	CD9660		# ISO 9660 + Rock Ridge file system
     60 file-system	MSDOSFS		# MS-DOS file system
     61 file-system	FDESC		# /dev/fd
     62 file-system	KERNFS		# /kern
     63 file-system	NULLFS		# loopback file system
     64 file-system 	OVERLAY		# overlay filesystem
     65 file-system	PORTAL		# portal filesystem (still experimental)
     66 file-system	PROCFS		# /proc
     67 file-system	UMAPFS		# NULLFS + uid and gid remapping
     68 file-system	UNION		# union file system
     69 file-system	CODA		# Coda File System; also needs vcode (below)
     70 
     71 # File system options
     72 options 	QUOTA		# UFS quotas
     73 #options 	FFS_EI		# FFS Endian Independant support
     74 options 	NFSSERVER
     75 options 	SOFTDEP		# FFS soft updates support
     76 
     77 # Networking options
     78 
     79 #options 	GATEWAY		# packet forwarding
     80 options 	INET		# IP + ICMP + TCP + UDP
     81 options 	INET6		# IPV6
     82 #options 	IPSEC		# IP security
     83 #options 	IPSEC_ESP	# IP security (encryption part; define w/ IPSEC)
     84 #options 	IPSEC_DEBUG	# debug for IP security
     85 #options 	MROUTING	# IP multicast routing
     86 options 	NS		# XNS
     87 #options 	NSIP		# XNS tunneling over IP
     88 options 	ISO,TPIP	# OSI
     89 #options 	EON		# OSI tunneling over IP
     90 options 	CCITT,LLC,HDLC	# X.25
     91 options 	NETATALK	# AppleTalk networking
     92 options 	PFIL_HOOKS	# pfil(9) packet filter hooks
     93 options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
     94 options 	PPP_DEFLATE	# Deflate compression support for PPP
     95 options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
     96 options 	IPFILTER_LOG	# ipmon(8) log support
     97 #options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
     98 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
     99 
    100 options 	NFS_BOOT_BOOTP
    101 options 	NFS_BOOT_DHCP
    102 #options 	NFS_BOOT_BOOTPARAM
    103 
    104 # Compatibility options
    105 
    106 #options 	COMPAT_43	# 4.3BSD compatibility.
    107 options 	COMPAT_14	# NetBSD 1.4 compatibility.
    108 options 	COMPAT_13	# NetBSD 1.3 compatibility.
    109 #options 	COMPAT_12	# NetBSD 1.2 compatibility.
    110 #options 	COMPAT_11	# NetBSD 1.1 compatibility.
    111 #options 	COMPAT_10	# NetBSD 1.0 compatibility.
    112 #options 	COMPAT_09	# NetBSD 0.9 compatibility.
    113 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
    114 
    115 # Shared memory options
    116 
    117 options 	SYSVMSG		# System V-like message queues
    118 options 	SYSVSEM		# System V-like semaphores
    119 #options 	SEMMNI=10	# number of semaphore identifiers
    120 #options 	SEMMNS=60	# number of semaphores in system
    121 #options 	SEMUME=10	# max number of undo entries per process
    122 #options 	SEMMNU=30	# number of undo structures in system
    123 options 	SYSVSHM		# System V-like memory sharing
    124 #options 	SHMMAXPGS=1024	# 1024 pages is the default
    125 
    126 # Device options
    127 
    128 #options 	MEMORY_DISK_HOOKS	# boottime setup of ramdisk
    129 #options 	MEMORY_DISK_ROOT_SIZE=3400	# Size in blocks
    130 #options 	MEMORY_DISK_IS_ROOT	# use memory disk as root
    131 
    132 # Miscellaneous kernel options
    133 options 	KTRACE		# system call tracing, a la ktrace(1)
    134 options 	SYSTRACE	# system call vetting via systrace(1)
    135 options 	IRQSTATS	# manage IRQ statistics
    136 #options 	LKM		# loadable kernel modules
    137 #options 	KMEMSTATS	# kernel memory statistics
    138 options 	SCSIVERBOSE	# Verbose SCSI errors
    139 options 	PCIVERBOSE	# Verbose PCI descriptions
    140 options 	MIIVERBOSE	# verbose PHY autoconfig messages
    141 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    142 options 	USBVERBOSE	# verbose USB device autoconfig messages
    143 options 	PMAP_STATIC_L1S=128
    144 options 	USERCONF	# userconf(4) support
    145 #options	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
    146 
    147 # if set defines a keycode for the fcom console to break into ddb.
    148 # 0x40 == @, see man ascii(7)
    149 #options 	DDB_KEYCODE=0x40
    150 
    151 # wscons options
    152 #options 	WSEMUL_SUN		# sun terminal emulation
    153 options 	WSEMUL_VT100		# VT100 / VT220 emulation
    154 # different kernel output - see dev/wscons/wsdisplayvar.h
    155 options 	WS_KERNEL_FG=WSCOL_GREEN
    156 options 	WSDISPLAY_COMPAT_PCVT		# emulate some ioctls
    157 options 	WSDISPLAY_COMPAT_SYSCONS	# emulate some ioctls
    158 options 	WSDISPLAY_COMPAT_USL		# VT handling
    159 options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
    160 # see dev/wscons/wskbdmap_mfii.h for implemented layouts
    161 #options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
    162 # the following enables some functions to get mouse console support.
    163 # if you want a really secure system, it may be better not to enable them,
    164 # see wsmoused(8), section SECURITY CONSIDERATIONS for more info.
    165 #options 	WSDISPLAY_CHARFUNCS		# mouse console support
    166 
    167 # Development and Debugging options
    168 
    169 #options 	ARM700BUGTRACK	# track the ARM700 swi bug
    170 #options 	PORTMASTER	# Enable PortMaster only options
    171 options 	DIAGNOSTIC	# internally consistency checks
    172 #options 	PMAP_DEBUG	# Enable pmap_debug_level code
    173 #options 	IPKDB		# remote kernel debugging
    174 options 	DDB		# in-kernel debugger
    175 options 	DDB_HISTORY_SIZE=100	# Enable history editing in DDB
    176 #makeoptions	DEBUG="-g"	# compile full symbol table
    177 options		SYMTAB_SPACE=380000
    178 
    179 config		netbsd	root on ? type ?
    180 
    181 # The main bus device
    182 mainbus0 at root
    183 
    184 # The boot cpu
    185 cpu0 at mainbus?
    186 
    187 # Core logic
    188 footbridge0	at mainbus?
    189 
    190 # footbridge uart
    191 fcom0	at footbridge?
    192 
    193 # system clock via footbridge
    194 #clock*	at footbridge?
    195 
    196 # time-of-day device via footbridge or RTC
    197 todclock0	at todservice?
    198 
    199 # PCI bus support
    200 # PCI bus via footbridge
    201 pci0	at footbridge?			# PCI bus
    202 
    203 pci*	at ppb? bus ?
    204 
    205 # PCI bridges
    206 ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    207 # XXX 'puc's aren't really bridges, but there's no better place for them here
    208 #puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
    209 
    210 # PCI serial interfaces
    211 #com*	at puc? port ?			# 16x50s on "universal" comm boards
    212 #cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
    213 
    214 # PCI parallel printer interfaces
    215 #lpt*	at puc? port ?			# || ports on "universal" comm boards
    216 
    217 # PCI SCSI Controllers and Buses
    218 adv*	at pci? dev ? function ?	# AdvanSys 1200[A,B], ULTRA SCSI
    219 scsibus* at adv?
    220 #adw*	at pci? dev ? function ?	# AdvanSys 9xxUW SCSI
    221 #scsibus* at adw?
    222 ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI controllers
    223 scsibus* at ahc?
    224 #bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
    225 #scsibus* at bha?
    226 iha*	at pci? dev ? function ?	# Initio INIC-940/950 SCSI
    227 scsibus* at iha?
    228 isp*	at pci? dev ? function ?	# Qlogic ISP 10x0 SCSI controllers
    229 scsibus* at isp?
    230 pcscp*	at pci? dev ? function ?	# AMD 53c974 PCscsi-PCI SCSI
    231 scsibus* at pcscp?
    232 siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
    233 scsibus* at siop?
    234 
    235 # SCSI devices
    236 sd*	at scsibus? target ? lun ?	# SCSI disk drives
    237 st*	at scsibus? target ? lun ?	# SCSI tape drives
    238 cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    239 #ch*	at scsibus? target ? lun ?	# SCSI auto-changers
    240 #uk*	at scsibus? target ? lun ?	# SCSI unknown device
    241 #ss*	at scsibus? target ? lun ?	# SCSI scanner
    242 
    243 # PCI IDE Controllers and Devices
    244 # PCI IDE controllers - see pciide(4) for supported hardware.
    245 # The 0x0001 flag force the driver to use DMA, even if the driver doesn't know
    246 # how to set up DMA modes for this chip. This may work, or may cause
    247 # a machine hang with some controllers.
    248 pciide* at pci? dev ? function ? flags 0x0000
    249 
    250 # IDE drives
    251 # Flags are used only with controllers that support DMA operations
    252 # and mode settings (e.g. some pciide controllers)
    253 # The lowest order four bits (rightmost digit) of the flags define the PIO
    254 # mode to use, the next set of four bits the DMA mode and the third set the
    255 # UltraDMA mode. For each set of four bits, the 3 lower bits define the mode
    256 # to use, and the last bit must be 1 for this setting to be used.
    257 # For DMA and UDMA, 0xf (1111) means 'disable'.
    258 # 0x0fac means 'use PIO mode 4, DMA mode 2, disable UltraDMA'.
    259 # (0xc=1100, 0xa=1010, 0xf=1111)
    260 # 0x0000 means "use whatever the drive claims to support".
    261 wd*	at pciide? channel ? drive ? flags 0x0000	# the drives themselves
    262 
    263 # ATAPI bus support
    264 atapibus* at pciide? channel ?
    265 
    266 # ATAPI devices
    267 cd*	at atapibus? drive ? flags 0x0000	# ATAPI CD-ROM drives
    268 sd*	at atapibus? drive ? flags 0x0000	# ATAPI disk drives
    269 uk*	at atapibus? drive ? flags 0x0000	# ATAPI unknown
    270 
    271 # PCI network interfaces
    272 #en*	at pci? dev ? function ?	# ENI/Adaptec ATM
    273 ep*	at pci? dev ? function ?	# 3C590 ethernet cards
    274 ex*	at pci? dev ? function ?	# 3Com 90x[B]
    275 epic*	at pci? dev ? function ?	# SMC EPIC/100 Ethernet
    276 #esh*	at pci? dev ? function ?	# Essential HIPPI card
    277 #fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
    278 fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    279 #le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
    280 ne*	at pci? dev ? function ?	# NE2000 compat ethernet
    281 #ntwoc*	at pci? dev ? function ?	# Riscom/N2 PCI Sync Serial
    282 sip*	at pci? dev ? function ?	# SiS 900 Ethernet
    283 #tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
    284 tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
    285 vr*	at pci? dev ? function ?	# VIA Rhine Fast Ethernet
    286 #lmc*	at pci? dev ? function ?	# Lan Media Corp SSI/HSSI/DS3
    287 rtk*	at pci? dev ? function ?	# Realtek 8129/8139
    288 
    289 # MII/PHY support
    290 acphy*	at mii? phy ?			# DAltima AC101 and AMD Am79c874 PHYs
    291 amhphy*	at mii? phy ?			# AMD 79c901 Ethernet PHYs
    292 bmtphy*	at mii? phy ?			# Broadcom BCM5201 and BCM5202 PHYs
    293 brgphy*	at mii? phy ?			# Broadcom BCM5400-family PHYs
    294 dmphy*	at mii? phy ?			# Davicom DM9101 PHYs
    295 exphy*	at mii? phy ?			# 3Com internal PHYs
    296 glxtphy* at mii? phy ?			# Level One LXT-1000 PHYs
    297 gphyter* at mii? phy ?			# NS83861 Gig-E PHY
    298 icsphy*	at mii? phy ?			# Integrated Circuit Systems ICS189x
    299 inphy*	at mii? phy ?			# Intel 82555 PHYs
    300 iophy*	at mii? phy ?			# Intel 82553 PHYs
    301 lxtphy*	at mii? phy ?			# Level One LXT-970 PHYs
    302 makphy*	at mii? phy ?			# Marvell Semiconductor 88E1000 PHYs
    303 nsphy*	at mii? phy ?			# NS83840 PHYs
    304 nsphyter* at mii? phy ?			# NS83843 PHYs
    305 pnaphy*	at mii? phy ?			# generic HomePNA PHYs
    306 qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
    307 sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
    308 tlphy*	at mii? phy ?			# ThunderLAN PHYs
    309 tqphy*	at mii? phy ?			# TDK Semiconductor PHYs
    310 ukphy*	at mii? phy ?			# generic unknown PHYs
    311 urlphy*	at mii? phy ?			# Realtek RTL8150L internal PHYs
    312 
    313 # USB Controller and Devices
    314 
    315 # PCI USB controllers
    316 ohci*	at pci?				# Open Host Controller
    317 
    318 # USB bus support
    319 usb*	at ohci?
    320 
    321 # USB Hubs
    322 uhub*	at usb?
    323 uhub*	at uhub? port ? configuration ? interface ?
    324 
    325 # USB HID device
    326 uhidev*	at uhub? port ? configuration ? interface ?
    327 
    328 # USB Mice
    329 ums*	at uhidev? reportid ?
    330 wsmouse*	at ums?
    331 
    332 # USB Keyboards
    333 ukbd*	at uhidev? reportid ?
    334 wskbd*	at ukbd? console ?
    335 
    336 # USB Generic HID devices
    337 uhid*	at uhidev? reportid ?
    338 
    339 # USB Printer
    340 ulpt*	at uhub? port ? configuration ? interface ?
    341 
    342 # USB Modem
    343 umodem*	at uhub? port ? configuration ?
    344 ucom*	at umodem?
    345 
    346 # USB Mass Storage
    347 umass*	at uhub? port ? configuration ? interface ?
    348 atapibus* at umass? channel ?
    349 scsibus* at umass? channel ?
    350 
    351 # USB audio
    352 uaudio*	at uhub? port ? configuration ?
    353 audio*	at uaudio?
    354 
    355 # USB MIDI
    356 umidi*	at uhub? port ? configuration ?
    357 midi*	at umidi?
    358 
    359 # USB Ethernet adapters
    360 aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
    361 cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
    362 kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
    363 uax*	at uhub? port ?		# ASIX AX88172 based adapters
    364 url*	at uhub? port ?		# Realtek RTL8150L based adapters
    365 
    366 # Prolofic PL2301/PL2302 host-to-host adapter
    367 upl*	at uhub? port ?
    368 
    369 # Serial adapters
    370 # FTDI FT8U100AX serial adapter
    371 uftdi*	at uhub? port ?
    372 ucom*	at uftdi? portno ?
    373 
    374 uplcom*	at uhub? port ?		# I/O DATA USB-RSAQ2 serial adapter
    375 ucom*	at uplcom? portno ?
    376 
    377 umct*	at uhub? port ?		# MCT USB-RS232 serial adapter
    378 ucom*	at umct? portno ?
    379 
    380 # Diamond Multimedia Rio 500
    381 urio*	at uhub? port ?
    382 
    383 # USB Handspring Visor
    384 uvisor*	at uhub? port ?
    385 ucom*	at uvisor?
    386 
    387 # USB scanners
    388 uscanner* at uhub? port ?
    389 
    390 # USB scanners that use SCSI emulation, e.g., HP5300
    391 usscanner* at uhub? port ?
    392 scsibus* at usscanner? channel ?
    393 
    394 # Y@P firmware loader
    395 uyap* at uhub? port ?
    396 
    397 # USB Generic driver
    398 ugen* at uhub? port ?
    399 
    400 # Audio Devices
    401 
    402 # PCI audio devices
    403 #eap*	at pci? dev ? function ?	# Ensoniq AudioPCI
    404 #sv*	at pci? dev ? function ?	# S3 SonicVibes
    405 
    406 # Audio support
    407 #audio*	at eap?
    408 #audio*	at sv?
    409 
    410 vga*		at pci?
    411 wsdisplay*	at vga? console ?
    412 
    413 # ISA bus bridging
    414 
    415 pcib*	at pci? dev ? function ?	# PCI-ISA bridge
    416 isa*	at pcib?			# ISA bus
    417 
    418 # ISA Plug-and-Play bus support
    419 isapnp0	at isa?
    420 
    421 # wscons
    422 pckbc0	at isa?			# pc keyboard controller
    423 pckbd*	at pckbc?		# PC keyboard
    424 pms*		at pckbc?		# PS/2 mouse for wsmouse
    425 wskbd*		at pckbd? console ?
    426 wsmouse*	at pms?
    427 
    428 pcppi0	at isa?
    429 sysbeep0	at pcppi?
    430 
    431 # ISA Plug-and-Play serial interfaces
    432 com*	at isapnp?			# Modems and serial boards
    433 
    434 # ISA Plug-and-Play network interfaces
    435 ep*	at isapnp?			# 3Com 3c509 Ethernet
    436 fmv*	at isapnp?			# Fujitsu FMV-183
    437 ne*	at isapnp?			# NE2000-compatible
    438 
    439 # ISA serial interfaces
    440 com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
    441 com1	at isa? port 0x2f8 irq 3
    442 #com2	at isa? port 0x3e8 irq 9
    443 #com3	at isa? port 0x2e8 irq 10
    444 
    445 # ISA parallel printer interfaces
    446 lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
    447 lpt1	at isa? port 0x278 irq 5
    448 #lpt2	at isa? port 0x3bc
    449 
    450 # ISA floppy
    451 #fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
    452 #fdc1	at isa? port 0x370 irq ? drq ?
    453 #fd*	at fdc? drive ?			# the drives themselves
    454 
    455 # ISA network interface
    456 #ne0	at isa? port 0x280 irq 9
    457 #ne1	at isa? port 0x300 irq 10
    458 #ep*	at isa? port ? irq ?
    459 
    460 # The spkr driver provides a simple tone interface to the built in speaker.
    461 spkr0	at pcppi?			# PC speaker
    462 
    463 dsrtc0	at isa? port 0x72		# Dallas RTC
    464 
    465 # ISA Plug-and-Play audio devices
    466 ess*	at isapnp?			# ESS Tech ES1887, ES1888, ES888 audio
    467 sb*	at isapnp?			# SoundBlaster-compatible audio
    468 wss*	at isapnp?			# Windows Sound System
    469 
    470 # OPL[23] FM syntheziers
    471 opl*	at ess?
    472 opl*	at sb?
    473 
    474 # Audio support
    475 audio*	at ess?
    476 audio*	at sb?
    477 audio*	at wss?
    478 
    479 # MPU 401 UARTs
    480 #mpu*	at sb?
    481 
    482 # MIDI support
    483 midi*	at pcppi?		# MIDI interface to the PC speaker
    484 midi*	at sb?			# SB MPU401 port
    485 midi*	at opl?			# OPL FM synth
    486 #midi*	at mpu?			# MPU 401
    487 
    488 # Joysticks
    489 
    490 # ISA Plug-and-Play joysticks
    491 joy*	at isapnp?			# Game ports (usually on audio cards)
    492 
    493 # ISA joysticks. Probe is a little strange; add only if you have one.
    494 #joy0	at isa? port 0x201
    495 
    496 # Pseudo-Devices
    497 
    498 # disk/mass storage pseudo-devices
    499 pseudo-device	ccd		2	# concatenated/striped disk devices
    500 #pseudo-device	cgd		2	# cryptographic disk devices
    501 pseudo-device	md		1	# memory disk device (ramdisk)
    502 pseudo-device	vnd		4	# disk-like interface to files
    503 
    504 # network pseudo-devices
    505 pseudo-device	bpfilter	4	# Berkeley packet filter
    506 pseudo-device	ipfilter		# IP filter (firewall) and NAT
    507 pseudo-device	loop			# network loopback
    508 pseudo-device	ppp		2	# Point-to-Point Protocol
    509 pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
    510 pseudo-device	sl		2	# Serial Line IP
    511 pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    512 pseudo-device	tun		2	# network tunneling over tty
    513 pseudo-device	gre		2	# generic L3 over IP tunnel
    514 pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
    515 #pseudo-device	faith		1	# IPv[46] tcp relay translation i/f
    516 #pseudo-device	stf		1	# 6to4 IPv6 over IPv4 encapsulation
    517 pseudo-device	vlan			# IEEE 802.1q encapsulation
    518 pseudo-device	bridge			# simple inter-network bridging
    519 #options	BRIDGE_IPF		# bridge uses IP/IPv6 pfil hooks too
    520 
    521 # miscellaneous pseudo-devices
    522 pseudo-device	pty			# pseudo-terminals
    523 pseudo-device	tb		1	# tablet line discipline
    524 pseudo-device	sequencer	1	# MIDI sequencer
    525 pseudo-device	rnd			# /dev/random and in-kernel generator
    526 #options 	RND_COM			# use "com" randomness as well (BROKEN)
    527 pseudo-device	clockctl		# user control of clock subsystem
    528 
    529 # a pseudo device needed for Coda	# also needs CODA (above)
    530 pseudo-device	vcoda		4	# coda minicache <-> venus comm.
    531 
    532 # mouse & keyboard multiplexor pseudo-devices
    533 pseudo-device	wsmux
    534