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GENERIC revision 1.95
      1 # $NetBSD: GENERIC,v 1.95 2005/07/07 17:05:58 tron 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: 1.95 $"
     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 options 	P1003_1B_SEMAPHORE # p1003.1b semaphore support
     58 
     59 options 	LKM		# loadable kernel modules
     60 
     61 options 	USERCONF	# userconf(4) support
     62 #options	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
     63 options 	SYSCTL_INCLUDE_DESCR	# Include sysctl descriptions in kernel
     64 
     65 # Enable experimental buffer queue strategy for better responsiveness under 
     66 # high disk I/O load. Use it with caution - it's not proven to be stable yet.
     67 #options 	BUFQ_READPRIO
     68 #options 	BUFQ_PRIOCSCAN
     69 
     70 # Diagnostic/debugging support options
     71 #options 	DIAGNOSTIC	# cheap kernel consistency checks
     72 #options 	DEBUG		# expensive debugging checks/support
     73 #options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
     74 options 	DDB		# in-kernel debugger
     75 #options 	DDB_HISTORY_SIZE=100	# Enable history editing in DDB
     76 #makeoptions	DEBUG="-g"
     77 
     78 # Compatibility options
     79 options 	COMPAT_13	# NetBSD 1.3,
     80 options 	COMPAT_14	# NetBSD 1.4,
     81 options 	COMPAT_15	# NetBSD 1.5,
     82 options 	COMPAT_16	# NetBSD 1.6,
     83 options 	COMPAT_20	# NetBSD 2.0,
     84 options 	COMPAT_43	# and 4.3BSD
     85 #options 	COMPAT_LINUX	# Linux binary compatibility
     86 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
     87 options		COMPAT_BSDPTY	# /dev/[pt]ty?? ptys.
     88 
     89 # File systems
     90 file-system 	FFS		# UFS
     91 file-system	EXT2FS		# second extended file system (linux)
     92 #file-system	LFS		# log-structured file system
     93 file-system 	MFS		# memory file system
     94 file-system 	NFS		# Network File System client
     95 #file-system	NTFS		# Windows/NT file system (experimental)
     96 file-system 	CD9660		# ISO 9660 + Rock Ridge file system
     97 file-system 	MSDOSFS		# MS-DOS file system
     98 #file-system 	FDESC		# /dev/fd
     99 file-system 	KERNFS		# /kern
    100 file-system 	NULLFS		# loopback file system
    101 #file-system	OVERLAY		# overlay file system
    102 #file-system 	PORTAL		# portal filesystem (still experimental)
    103 file-system 	PROCFS		# /proc
    104 #file-system 	UMAPFS		# NULLFS + uid and gid remapping
    105 file-system 	UNION		# union file system
    106 #file-system	CODA		# Coda File System; also needs vcoda (below)
    107 #file-system	PTYFS		# experimental - /dev/ptm support
    108 
    109 # File system options
    110 options 	QUOTA		# UFS quotas
    111 #options 	FFS_EI		# FFS Endian Independant support
    112 options 	SOFTDEP		# FFS soft updates support.
    113 #options	UFS_DIRHASH	# UFS Large Directory Hashing - Experimental
    114 options 	NFSSERVER	# Network File System server
    115 #options 	FFS_NO_SNAPSHOT	# ffs snapshots
    116 #options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
    117  				# immutable) behave as system flags.
    118 
    119 # Networking options
    120 #options 	GATEWAY		# packet forwarding
    121 options 	INET		# IP + ICMP + TCP + UDP
    122 options 	INET6		# IPv6
    123 #options 	IPSEC		# IP security
    124 #options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
    125 #options 	IPSEC_NAT_T	# IPsec NAT traversal (NAT-T)
    126 #options 	IPSEC_DEBUG	# debug for IP security
    127 #options 	MROUTING	# IP multicast routing
    128 #options 	PIM		# Protocol Independent Multicast
    129 #options 	NETATALK	# AppleTalk networking protocols
    130 options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
    131 options 	PPP_DEFLATE	# Deflate compression support for PPP
    132 options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
    133 options 	PFIL_HOOKS	# pfil(9) packet filter hooks
    134 options 	IPFILTER_LOG	# ipmon(8) log support
    135 #options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
    136 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    137 
    138 #options 	ALTQ		# Manipulate network interfaces' output queues
    139 #options 	ALTQ_BLUE	# Stochastic Fair Blue
    140 #options 	ALTQ_CBQ	# Class-Based Queueing
    141 #options 	ALTQ_CDNR	# Diffserv Traffic Conditioner
    142 #options 	ALTQ_FIFOQ	# First-In First-Out Queue
    143 #options 	ALTQ_FLOWVALVE	# RED/flow-valve (red-penalty-box)
    144 #options 	ALTQ_HFSC	# Hierarchical Fair Service Curve
    145 #options 	ALTQ_LOCALQ	# Local queueing discipline
    146 #options 	ALTQ_PRIQ	# Priority Queueing
    147 #options 	ALTQ_RED	# Random Early Detection
    148 #options 	ALTQ_RIO	# RED with IN/OUT
    149 #options 	ALTQ_WFQ	# Weighted Fair Queueing
    150 
    151 # These options enable verbose messages for several subsystems.
    152 # Warning, these may compile large string tables into the kernel!
    153 #options 	MIIVERBOSE	# verbose PHY autoconfig messages
    154 options 	PCIVERBOSE	# verbose PCI device autoconfig messages
    155 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    156 #options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
    157 options 	SCSIVERBOSE	# human readable SCSI error messages
    158 #options 	USBVERBOSE	# verbose USB device autoconfig messages
    159 #options 	RESIDUAL_DATA_DUMP	# verbosely dump residual data
    160 
    161 #options 	NFS_BOOT_BOOTP
    162 options 	NFS_BOOT_BOOTPARAM
    163 options 	NFS_BOOT_DHCP
    164 
    165 #
    166 # wscons options
    167 #
    168 # builtin terminal emulations
    169 options 	WSEMUL_VT100		# VT100 / VT220 emulation
    170 # different kernel output - see dev/wscons/wsdisplayvar.h
    171 options 	WS_KERNEL_FG=WSCOL_GREEN
    172 #options 	WS_KERNEL_BG=WSCOL_BLACK
    173 # see dev/pckbc/wskbdmap_mfii.c for implemented layouts
    174 #options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
    175 # allocate a number of virtual screens at autoconfiguration time
    176 #options 	WSDISPLAY_DEFAULTSCREENS=4
    177 # use a large software cursor that doesn't blink
    178 options 	PCDISPLAY_SOFTCURSOR
    179 
    180 # Kernel root file system and dump configuration.
    181 config	netbsd	root on ? type ?
    182 #config	netbsd	root on tlp0 type nfs
    183 #config	netbsd	root on pcn0 type nfs
    184 
    185 
    186 #
    187 # Device configuration
    188 #
    189 
    190 mainbus0 at root
    191 cpu0	at mainbus0
    192 
    193 
    194 # Basic Bus Support
    195 
    196 # PCI bus support
    197 pci0	at mainbus0 bus ?
    198 pci*	at pchb? bus ?
    199 pci*	at ppb? bus ?
    200 
    201 options 	PCI_NETBSD_CONFIGURE
    202 
    203 # PCI bridges
    204 pchb*	at pci? dev ? function ?	# PCI-Host bridges
    205 ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    206 pcib*	at pci? dev ? function ?	# PCI-ISA bridges
    207 
    208 # ISA bus support
    209 isa*	at pcib?			# ISA on PCI-ISA bridge
    210 
    211 # PCMCIA bus support
    212 pcmcia* at pcic? controller ? socket ?
    213 
    214 # ISA PCMCIA controllers
    215 pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
    216 
    217 #options 	PCIC_ISA_INTR_ALLOC_MASK=0x4a00 # free irq 9,11,14
    218 #options 	PCIC_ISA_ALLOC_IOBASE=0x0400
    219 #options 	PCIC_ISA_ALLOC_IOSIZE=0x0100
    220 
    221 # ISA Plug-and-Play bus support
    222 #isapnp0	at isa?
    223 
    224 # on-board I/O for IBM Personal Power Series 830 IDE controller
    225 obio0	at mainbus0
    226 
    227 
    228 # Console Devices
    229 
    230 # wscons
    231 pckbc0		at isa?			# pc keyboard controller
    232 pckbd*		at pckbc?		# PC keyboard
    233 pms*		at pckbc?		# PS/2 mouse for wsmouse
    234 vga*		at pci?
    235 wsdisplay*	at vga? console ?
    236 wskbd*		at pckbd? console ?
    237 wsmouse*	at pms? mux 0
    238 
    239 attimer0	at isa?			# AT Timer
    240 pcppi0	at isa?				# PC prog. periph. interface
    241 isabeep0 at pcppi?			# "keyboard" beep
    242 
    243 mcclock0 at isa? port 0x70		# mc146818 and compatible
    244 mkclock0 at isa? port 0x74		# mk48t18 and compatible
    245 
    246 
    247 # Cryptographic Devices
    248 
    249 # PCI cryptographic devices
    250 #hifn*	at pci? dev ? function ?	# Hifn 7755/7811/795x
    251 #ubsec*	at pci? dev ? function ?	# Broadcom 5501/5601/580x/582x
    252 
    253 
    254 # Serial Devices
    255 
    256 # ISA serial interfaces
    257 com0	at isa? port 0x3f8 irq 4	# standard PC serial ports
    258 com1	at isa? port 0x2f8 irq 3
    259 
    260 # PCMCIA serial interfaces
    261 com*	at pcmcia? function ?		# Modems and serial cards
    262 
    263 #pcmcom* at pcmcia? function ?		# PCMCIA multi-port serial cards
    264 #com*	at pcmcom? slave ?		# ...and the slave devices
    265 
    266 
    267 # Parallel Printer Interfaces
    268 
    269 # ISA parallel printer interfaces
    270 lpt0	at isa? port 0x3bc irq 7	# standard PC parallel ports
    271 
    272 
    273 # SCSI Controllers and Devices
    274 
    275 # PCI SCSI controllers
    276 #adw*	at pci? dev ? function ?	# AdvanSys 9x0UW[D], 3940U[2,3]W SCSI
    277 ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
    278 #iha*	at pci? dev ? function ?	# Initio INIC-940/950 SCSI
    279 #pcscp*	at pci? dev ? function ?	# AMD 53c974 PCscsi-PCI SCSI
    280 siop*	at pci? dev ? function ?	# Symbios 53c8xx SCSI
    281 esiop*	at pci? dev ? function ?	# Symbios 53c875 SCSI and newer
    282 
    283 # PCMCIA SCSI controllers
    284 aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
    285 
    286 # SCSI bus support
    287 #scsibus* at adw?
    288 scsibus* at ahc?
    289 scsibus* at aic?
    290 #scsibus* at iha?
    291 #scsibus* at pcscp?
    292 scsibus* at siop?
    293 scsibus* at esiop?
    294 
    295 # SCSI devices
    296 sd*	at scsibus? target ? lun ?	# SCSI disk drives
    297 st*	at scsibus? target ? lun ?	# SCSI tape drives
    298 cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    299 #ch*	at scsibus? target ? lun ?	# SCSI autochangers
    300 #ss*	at scsibus? target ? lun ?	# SCSI scanners
    301 uk*	at scsibus? target ? lun ?	# SCSI unknown
    302 
    303 
    304 # IDE and related devices
    305 
    306 # IBM Personal Power Series 830 IDE controller
    307 wdc0	at obio? port 0x1f0 irq 13
    308 wdc1	at obio? port 0x170 irq 13
    309 
    310 # ISA Plug-and-Play IDE controllers
    311 #wdc*	at isapnp?
    312 
    313 # PCMCIA IDE controllers
    314 wdc*	at pcmcia? function ?
    315 
    316 # ATA (IDE) bus support
    317 atabus* at ata?
    318 
    319 # IDE drives
    320 # Flags are used only with controllers that support DMA operations
    321 # and mode settings (e.g. some pciide controllers)
    322 # The lowest order four bits (rightmost digit) of the flags define the PIO
    323 # mode to use, the next set of four bits the DMA mode and the third set the
    324 # UltraDMA mode. For each set of four bits, the 3 lower bits define the mode
    325 # to use, and the last bit must be 1 for this setting to be used.
    326 # For DMA and UDMA, 0xf (1111) means 'disable'.
    327 # 0x0fac means 'use PIO mode 4, DMA mode 2, disable UltraDMA'.
    328 # (0xc=1100, 0xa=1010, 0xf=1111)
    329 # 0x0000 means "use whatever the drive claims to support".
    330 wd*	at atabus? drive ? flags 0x0000
    331 
    332 # ATAPI bus support
    333 atapibus* at atapi?
    334 
    335 # ATAPI devices
    336 # flags have the same meaning as for IDE drives.
    337 cd*	at atapibus? drive ? flags 0x0000	# ATAPI CD-ROM drives
    338 sd*	at atapibus? drive ? flags 0x0000	# ATAPI disk drives
    339 uk*	at atapibus? drive ? flags 0x0000	# ATAPI unknown
    340 
    341 # Miscellaneous mass storage devices
    342 
    343 # ISA Floppy
    344 #fdc0 at isa? port 0x3f0 irq 6 drq 2	# standard ISA floppy controller
    345 #fd0 at fdc0 drive ?
    346 
    347 # Network Interfaces
    348 
    349 # PCI network interfaces
    350 ep*	at pci? dev ? function ?	# 3Com 3c59x
    351 ex*	at pci? dev ? function ?	# 3Com 3c90x[BC]
    352 fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    353 ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
    354 pcn*	at pci? dev ? function ?	# AMD PCnet-PCI Ethernet
    355 rtk*	at pci? dev ? function ?	# Realtek 8129/8139
    356 sip*	at pci? dev ? function ?	# SiS 900/DP83815 Ethernet
    357 tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
    358 vr*	at pci? dev ? function ?	# VIA Rhine Fast Ethernet
    359 
    360 # ISA network interfaces
    361 #ep*	at isa? port ? irq ?		# 3Com 3c509 Ethernet
    362 #ne0	at isa? port 0x280 irq 9	# NE2000-compatible Ethernet
    363 #ne1	at isa? port 0x300 irq 10
    364 #we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
    365 we1	at isa? port 0x300 iomem 0xe4000 irq 11
    366 
    367 # ISA Plug-and-Play network intefaces
    368 #ep*	at isapnp?			# 3Com 3c509 Ethernet
    369 #ne*	at isapnp?			# NE2000-compatible Ethernet
    370 
    371 # PCMCIA network interfaces
    372 ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
    373 ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
    374 
    375 # MII/PHY support
    376 dmphy*	at mii? phy ?			# Davicom DM9101 PHYs
    377 exphy*	at mii? phy ?			# 3Com internal PHYs
    378 icsphy* at mii? phy ?			# Integrated Circuit Systems ICS189x
    379 inphy*	at mii? phy ?			# Intel 82555 PHYs
    380 iophy*	at mii? phy ?			# Intel 82553 PHYs
    381 lxtphy* at mii? phy ?			# Level One LXT-970 PHYs
    382 nsphy*	at mii? phy ?			# NS83840 PHYs
    383 nsphyter* at mii? phy ?			# NS83843 PHYs
    384 qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
    385 sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
    386 tlphy*	at mii? phy ?			# ThunderLAN PHYs
    387 tqphy*	at mii? phy ?			# TDK Semiconductor PHYs
    388 ukphy*	at mii? phy ?			# generic unknown PHYs
    389 
    390 
    391 # USB Controller and Devices
    392 
    393 # PCI USB controllers
    394 #uhci*	at pci? dev ? function ?	# Universal Host Controller (Intel)
    395 #ohci*	at pci? dev ? function ?	# Open Host Controller
    396 
    397 # USB bus support
    398 #usb*	at uhci?
    399 #usb*	at ohci?
    400 
    401 # USB Hubs
    402 #uhub*	at usb?
    403 #uhub*	at uhub? port ? configuration ? interface ?
    404 
    405 # USB HID device
    406 #uhidev*	at uhub? port ? configuration ? interface ?
    407 
    408 # USB Mice
    409 #ums*	at uhidev? reportid ?
    410 #wsmouse* at ums? mux 0
    411 
    412 # USB Keyboards
    413 #ukbd*	at uhidev? reportid ?
    414 #wskbd*	at ukbd? console ? mux 1
    415 
    416 # USB Generic HID devices
    417 #uhid*	at uhidev? reportid ?
    418 
    419 # USB Printer
    420 #ulpt*	at uhub? port ? configuration ? interface ?
    421 
    422 # USB Modem
    423 #umodem* at uhub? port ? configuration ?
    424 #ucom*	at umodem?
    425 
    426 # USB Mass Storage
    427 #umass*	at uhub? port ? configuration ? interface ?
    428 #scsibus* at umass? channel ?
    429 #atapibus* at umass?
    430 
    431 # USB audio
    432 #uaudio* at uhub? port ? configuration ?
    433 
    434 # USB Ethernet adapters
    435 #aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
    436 #axe*	at uhub? port ?		# ASIX AX88172 based adapters
    437 #cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
    438 #kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
    439 #url*	at uhub? port ?		# Realtek RTL8150L based adapters
    440 #udav*	at uhub? port ?		# Davicom DM9601 based adapters
    441 
    442 # Prolofic PL2301/PL2302 host-to-host adapter
    443 #upl*	at uhub? port ?
    444 
    445 # Serial adapters
    446 #uftdi*	at uhub? port ?		# FTDI FT8U100AX serial adapter
    447 #ucom*	at uftdi? portno ?
    448 
    449 #umct*	at uhub? port ?		# MCT USB-RS232 serial adapter
    450 #ucom*	at umct? portno ?
    451 
    452 #uplcom* at uhub? port ?	# I/O DATA USB-RSAQ2 serial adapter
    453 #ucom*	at uplcom? portno ?
    454 
    455 #uvscom* at uhub? port ?	# SUNTAC Slipper U VS-10U serial adapter
    456 #ucom*	at uvscom? portno ?
    457 
    458 # Diamond Multimedia Rio 500
    459 #urio*	at uhub? port ?
    460 
    461 # USB Handspring Visor
    462 #uvisor* at uhub? port ?
    463 #ucom*	at uvisor?
    464 
    465 # Kyocera AIR-EDGE PHONE
    466 #ukyopon* at uhub? port ?
    467 #ucom*	at ukyopon? portno ?
    468 
    469 # Y@P firmware loader
    470 #uyap* at uhub? port ?
    471 
    472 # USB Generic driver
    473 #ugen*	at uhub? port ?
    474 
    475 # USB scanners
    476 #uscanner* at uhub? port ?
    477 
    478 
    479 # Audio device
    480 
    481 # ISA Plug-and-Play audio devices
    482 #wss*	at isapnp?			# CS4232
    483 
    484 # Audio support
    485 #audio*	at uaudio?
    486 #audio*	at wss?
    487 
    488 # MIDI support
    489 #midi*	at pcppi?		# MIDI interface to the PC speaker
    490 
    491 # The spkr driver provides a simple tone interface to the built in speaker.
    492 #spkr0	at pcppi?		# PC speaker
    493 
    494 
    495 # Joysticks
    496 
    497 # ISA Plug-and-Play joysticks
    498 #joy*	at isapnp?			# Game ports (usually on audio cards)
    499 
    500 # ISA joysticks. Probe is a little strange; add only if you have one.
    501 #joy0	at isa? port 0x201
    502 
    503 
    504 # Pseudo-Devices
    505 
    506 # Not yet ready -- prep lacks generic soft interrupts
    507 #pseudo-device 	crypto		# opencrypto framework
    508 
    509 # disk/mass storage pseudo-devices
    510 pseudo-device	ccd		4	# concatenated/striped disk devices
    511 #pseudo-device	cgd		4	# cryptographic disk devices
    512 #pseudo-device	raid		8	# RAIDframe disk driver
    513 #options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
    514 # Options to enable various other RAIDframe RAID types.
    515 # options	RF_INCLUDE_EVENODD=1
    516 # options	RF_INCLUDE_RAID5_RS=1
    517 # options	RF_INCLUDE_PARITYLOGGING=1
    518 # options	RF_INCLUDE_CHAINDECLUSTER=1
    519 # options	RF_INCLUDE_INTERDECLUSTER=1
    520 # options 	RF_INCLUDE_PARITY_DECLUSTERING=1
    521 # options	RF_INCLUDE_PARITY_DECLUSTERING_DS=1
    522 pseudo-device	fss		4	# file system snapshot device
    523 pseudo-device	md		1	# memory disk device (ramdisk)
    524 pseudo-device	vnd		4	# disk-like interface to files
    525 
    526 # network pseudo-devices
    527 pseudo-device	loop			# network loopback
    528 pseudo-device	bpfilter	8	# Berkeley packet filter
    529 pseudo-device	ipfilter		# IP filter (firewall) and NAT
    530 pseudo-device	ppp		2	# Point-to-Point Protocol
    531 pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
    532 pseudo-device	sl		2	# Serial Line IP
    533 pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    534 pseudo-device	tun		2	# network tunneling over tty
    535 pseudo-device	tap			# virtual Ethernet
    536 pseudo-device	gre		2	# generic L3 over IP tunnel
    537 pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
    538 #pseudo-device	faith		2	# IPv[46] tcp relay translation i/f
    539 #pseudo-device	stf		2	# 6to4 IPv6 over IPv4 encapsulation
    540 pseudo-device	vlan			# IEEE 802.1q encapsulation
    541 pseudo-device	bridge			# simple inter-network bridging
    542 #options	BRIDGE_IPF		# bridge uses IP/IPv6 pfil hooks too
    543 
    544 # miscellaneous pseudo-devices
    545 pseudo-device	pty			# pseudo-terminals
    546 pseudo-device	tb		1	# tablet line discipline
    547 #pseudo-device	sequencer	1	# MIDI sequencer
    548 pseudo-device	rnd			# /dev/random and in-kernel generator
    549 #options 	RND_COM			# use "com" randomness as well
    550 pseudo-device	clockctl		# user control of clock subsystem
    551 pseudo-device	ksyms			# /dev/ksyms
    552 #pseudo-device	pf			# PF packet filter
    553 #pseudo-device	pflog			# PF log if
    554 
    555 # a pseudo device needed for Coda	# also needs CODA (above)
    556 #pseudo-device	vcoda		4	# coda minicache <-> venus comm.
    557 
    558 # wscons pseudo-devices
    559 pseudo-device	wsmux			# mouse & keyboard multiplexor
    560 pseudo-device	wsfont
    561