GENERIC_TINY revision 1.151
1#	$NetBSD: GENERIC_TINY,v 1.151 2017/07/29 18:08:58 maxv Exp $
2#
3#	GENERIC_TINY -- suitable default for 4M machines
4#			No EISA, PCI, or SCSI.
5#
6
7include "arch/i386/conf/std.i386"
8
9#options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
10
11makeoptions	COPTS="-Os"
12makeoptions	USE_SSP="no"
13
14maxusers	8		# estimated number of users
15
16# CPU-related options.
17#options 	VM86		# virtual 8086 emulation
18#options 	USER_LDT	# user-settable LDT; used by WINE
19
20# This option allows you to force a serial console at the specified
21# I/O address.   see console(4) for details.
22#options 	CONSDEVNAME="\"com\""
23
24# The following options override the memory sizes passed in from the boot
25# block.  Use them *only* if the boot block is unable to determine the correct
26# values.  Note that the BIOS may *correctly* report less than 640k of base
27# memory if the extended BIOS data area is located at the top of base memory
28# (as is the case on most recent systems).
29#options 	REALBASEMEM=...	# size of base memory
30#options 	REALEXTMEM=...	# size of extended memory
31
32# Standard system options
33
34options 	INSECURE	# disable kernel security levels - X needs this
35
36options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
37#options 	NTP		# NTP phase/frequency locked loop
38
39#options 	KTRACE		# system call tracing via ktrace(1)
40
41#options 	SYSVMSG		# System V-like message queues
42#options 	SYSVSEM		# System V-like semaphores
43#options 	SYSVSHM		# System V-like memory sharing
44
45#options 	USERCONF	# userconf(4) support
46options 	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
47#options 	SYSCTL_INCLUDE_DESCR	# Include sysctl descriptions in kernel
48
49# Diagnostic/debugging support options
50#options 	DIAGNOSTIC	# inexpensive kernel consistency checks
51#options 	DEBUG		# expensive debugging checks/support
52#options 	DDB		# in-kernel debugger
53#options 	DDB_ONPANIC=1	# see also sysctl(7): `ddb.onpanic'
54#options 	DDB_HISTORY_SIZE=512	# enable history editing in DDB
55#options 	KGDB		# remote debugger
56#options 	KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
57#makeoptions	DEBUG="-g"	# compile full symbol table
58
59# Compatibility options
60#options 	COMPAT_NOMID	# NetBSD 0.8, 386BSD, and BSDI
61#options 	COMPAT_09	# NetBSD 0.9,
62#options 	COMPAT_10	# NetBSD 1.0,
63#options 	COMPAT_11	# NetBSD 1.1,
64options 	COMPAT_12	# NetBSD 1.2 (and 386BSD and BSDI),
65options 	COMPAT_13	# NetBSD 1.3 (and 386BSD and BSDI),
66options 	COMPAT_14	# NetBSD 1.4,
67options 	COMPAT_15	# NetBSD 1.5,
68options 	COMPAT_16	# NetBSD 1.6,
69options 	COMPAT_20	# NetBSD 2.0,
70options 	COMPAT_30	# NetBSD 3.0,
71options 	COMPAT_40	# NetBSD 4.0,
72options 	COMPAT_50	# NetBSD 5.0,
73options 	COMPAT_60	# NetBSD 6.0, and
74options 	COMPAT_70	# NetBSD 7.0 binary compatibility.
75options 	COMPAT_43	# 4.3BSD, 386BSD, and BSDI
76#options 	COMPAT_386BSD_MBRPART # recognize old partition ID
77
78#options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
79#options 	COMPAT_LINUX	# binary compatibility with Linux
80#options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD
81options 	COMPAT_BSDPTY	# /dev/[pt]ty?? ptys.
82
83# File systems
84file-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
88file-system	NFS		# Network File System client
89file-system	CD9660		# ISO 9660 + Rock Ridge file system
90file-system	MSDOSFS		# MS-DOS file system
91#file-system	FDESC		# /dev/fd
92file-system	KERNFS		# /kern
93#file-system	NULLFS		# loopback file system
94#file-system	PROCFS		# /proc
95#file-system	UMAPFS		# NULLFS + uid and gid remapping
96#file-system	UNION		# union file system
97#file-system	PTYFS		# /dev/pts/N support
98#file-system	TMPFS		# Efficient memory file-system
99
100# File system options
101#options 	QUOTA		# legacy UFS quotas
102#options 	QUOTA2		# new, in-filesystem UFS quotas
103#options 	FFS_EI		# FFS Endian Independent support
104#options 	NFSSERVER	# Network File System server
105options 	FFS_NO_SNAPSHOT	# No FF snapshot support
106#options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
107				# immutable) behave as system flags.
108
109# Networking options
110#options 	GATEWAY		# packet forwarding
111options 	INET		# IP + ICMP + TCP + UDP
112#options 	MROUTING	# IP multicast routing
113#options 	PIM		# Protocol Independent Multicast
114#options 	NETATALK	# AppleTalk networking protocols
115#options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
116#options 	PPP_DEFLATE	# Deflate compression support for PPP
117#options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
118#options 	IPFILTER_LOG	# ipmon(8) log support
119#options 	IPFILTER_LOOKUP	# ippool(8) support
120options 	IPFILTER_COMPAT # Compat for IP-Filter
121#options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
122#options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
123
124#options 	ALTQ		# Manipulate network interfaces' output queues
125#options 	ALTQ_BLUE	# Stochastic Fair Blue
126#options 	ALTQ_CBQ	# Class-Based Queueing
127#options 	ALTQ_CDNR	# Diffserv Traffic Conditioner
128#options 	ALTQ_FIFOQ	# First-In First-Out Queue
129#options 	ALTQ_FLOWVALVE	# RED/flow-valve (red-penalty-box)
130#options 	ALTQ_HFSC	# Hierarchical Fair Service Curve
131#options 	ALTQ_LOCALQ	# Local queueing discipline
132#options 	ALTQ_PRIQ	# Priority Queueing
133#options 	ALTQ_RED	# Random Early Detection
134#options 	ALTQ_RIO	# RED with IN/OUT
135#options 	ALTQ_WFQ	# Weighted Fair Queueing
136
137# These options enable verbose messages for several subsystems.
138# Warning, these may compile large string tables into the kernel!
139#options 	EISAVERBOSE	# verbose EISA device autoconfig messages
140#options 	PCIVERBOSE	# verbose PCI device autoconfig messages
141#options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
142#options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
143#options 	SCSIVERBOSE	# human readable SCSI error messages
144#options 	USBVERBOSE	# verbose USB device autoconfig messages
145
146#options 	NFS_BOOT_BOOTP,NFS_BOOT_BOOTPARAM
147
148# Kernel root file system and dump configuration.
149config		netbsd	root on ? type ?
150#config		netbsd	root on sd0a type ffs
151#config		netbsd	root on ? type nfs
152
153#
154# wscons options
155#
156# builtin terminal emulations
157#options 	WSEMUL_SUN		# sun terminal emulation
158options 	WSEMUL_VT100		# VT100 / VT220 emulation
159# customization of console and kernel output - see dev/wscons/wsdisplayvar.h
160#options 	WSDISPLAY_CUSTOM_OUTPUT	# color customization from wsconsctl(8)
161#options 	WS_DEFAULT_FG=WSCOL_WHITE
162#options 	WS_DEFAULT_BG=WSCOL_BLACK
163#options 	WS_DEFAULT_COLATTR="(0)"
164#options 	WS_DEFAULT_MONOATTR="(0)"
165options 	WS_KERNEL_FG=WSCOL_GREEN
166#options 	WS_KERNEL_BG=WSCOL_BLACK
167#options 	WS_KERNEL_COLATTR=""
168#options 	WS_KERNEL_MONOATTR=""
169# customization of console border color
170#options 	WSDISPLAY_CUSTOM_BORDER	# border customization from wsconsctl(8)
171#options 	WSDISPLAY_BORDER_COLOR=WSCOL_BLUE	# default color
172# compatibility to other console drivers
173options 	WSDISPLAY_COMPAT_PCVT		# emulate some ioctls
174options 	WSDISPLAY_COMPAT_SYSCONS	# emulate some ioctls
175options 	WSDISPLAY_COMPAT_USL		# wsconscfg VT handling
176options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
177# see dev/pckbport/wskbdmap_mfii.c for implemented layouts
178#options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for pckbd driver
179#options 	UKBD_LAYOUT="(KB_DE | KB_NODEAD)"  # for ukbd driver
180# allocate a number of virtual screens at autoconfiguration time
181#options 	WSDISPLAY_DEFAULTSCREENS=4
182# use a large software cursor that doesn't blink
183options 	PCDISPLAY_SOFTCURSOR
184
185#
186# Device configuration
187#
188
189#apm0	at mainbus0			# Advanced power management
190
191
192# Basic Bus Support
193
194# PCI bus support
195#pci*	at mainbus? bus ?
196#pci*	at pchb? bus ?
197#pci*	at ppb? bus ?
198
199# PCI bridges
200#pchb*	at pci? dev ? function ?	# PCI-Host bridges
201#pceb*	at pci? dev ? function ?	# PCI-EISA bridges
202#pcib*	at pci? dev ? function ?	# PCI-ISA bridges
203#ichlpcib* at pci? dev ? function ?	# Intel ICH PCI-ISA w/ watchdog and
204					# SpeedStep support
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# EISA bus support
210#eisa0	at mainbus?
211#eisa0	at pceb?
212
213# ISA bus support
214isa0	at mainbus?
215#isa0	at pceb?
216#isa0	at pcib?
217#isa0	at ichlpcib?
218
219# PCMCIA bus support
220pcmcia* at pcic? controller ? socket ?
221
222# ISA PCMCIA controllers
223pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000
224pcic1	at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000
225
226# ISA Plug-and-Play bus support
227#isapnp0 at isa?
228
229# ISA Plug-and-Play PCMCIA controllers
230#pcic*	at isapnp?
231
232# Console Devices
233
234# wscons
235pckbc0		at isa?			# PC keyboard controller
236pckbd*		at pckbc?		# PC keyboard
237#pms*		at pckbc?		# PS/2 mouse for wsmouse
238vga0		at isa?
239#vga*		at pci? dev ? function ?
240pcdisplay0	at isa?			# CGA, MDA, EGA, HGA
241wsdisplay*	at vga? console ?
242wsdisplay*	at pcdisplay? console ?
243wskbd*		at pckbd? console ?
244#wsmouse*	at pms? mux 0
245
246
247#attimer0	at isa?
248#pcppi0	at isa?
249#sysbeep0	at pcppi?
250
251# Serial Devices
252
253# PCI serial interfaces
254#com*	at puc? port ?			# 16x50s on "universal" comm boards
255#cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
256
257# ISA Plug-and-Play serial interfaces
258#com*	at isapnp?			# Modems and serial boards
259
260# PCMCIA serial interfaces
261com*	at pcmcia? function ?		# Modems and serial cards
262
263# ISA serial interfaces
264#options 	COM_HAYESP		# adds Hayes ESP serial board support
265com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
266com1	at isa? port 0x2f8 irq 3
267com2	at isa? port 0x3e8 irq 5
268#com3	at isa? port 0x2e8 irq 9
269#ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
270#com*	at ast? slave ?
271#boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
272#com*	at boca? slave ?
273#rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
274#com*	at rtfps? slave ?
275#cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards
276
277
278# Parallel Printer Interfaces
279
280# PCI parallel printer interfaces
281#lpt*	at puc? port ?			# || ports on "universal" comm boards
282
283# ISA parallel printer interfaces
284lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
285#lpt1	at isa? port 0x278
286#lpt2	at isa? port 0x3bc
287
288
289# SCSI Controllers and Devices
290
291# PCI SCSI controllers
292#ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
293#dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
294#bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
295#isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
296#siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
297#esiop*	at pci? dev ? function ?	# NCR 53c875 SCSI and newer
298#options 	SIOP_SYMLED		# drive the act. LED in software
299
300# EISA SCSI controllers
301#ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
302#ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
303#bha*	at eisa? slot ?			# BusLogic 7xx SCSI
304#dpt*	at eisa? slot ?			# DPT SmartCache/SmartRAID
305#uha*	at eisa? slot ?			# UltraStor 24f SCSI
306
307# PCMCIA SCSI controllers
308#aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
309
310# ISA Plug-and-Play SCSI controllers
311#aic*	at isapnp?			# Adaptec AHA-1520B
312
313# ISA SCSI controllers
314#aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
315#aha1	at isa? port 0x334 irq ? drq ?
316#ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
317#aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
318#bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
319#bha1	at isa? port 0x334 irq ? drq ?
320#sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
321#uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
322#uha1	at isa? port 0x340 irq ? drq ?
323#wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
324#wds1	at isa? port 0x358 irq 11 drq 5
325
326# SCSI bus support
327#scsibus* at scsi?
328
329# SCSI devices
330#sd*	at scsibus? target ? lun ?	# SCSI disk drives
331#st*	at scsibus? target ? lun ?	# SCSI tape drives
332#cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
333#ch*	at scsibus? target ? lun ?	# SCSI autochangers
334#ss*	at scsibus? target ? lun ?	# SCSI scanners
335#uk*	at scsibus? target ? lun ?	# SCSI unknown
336
337
338# IDE and related devices
339
340# ISA Plug-and-Play IDE controllers
341#wdc*	at isapnp?
342
343# PCMCIA IDE controllers
344wdc*	at pcmcia? function ?
345
346# ISA IDE controllers
347wdc0	at isa? port 0x1f0 irq 14	# ST506, ESDI, and IDE controllers
348wdc1	at isa? port 0x170 irq 15
349
350# ATA (IDE) bus support
351atabus* at ata?
352#options 	ATADEBUG
353
354# IDE drives
355wd*	at atabus? drive ?			# the drives themselves
356
357# ATAPI bus support
358atapibus* at atapi?
359
360# ATAPI devices
361cd*	at atapibus? drive ?		# ATAPI CD-ROM drives
362sd*	at atapibus? drive ?		# ATAPI disk drives
363
364
365# Miscellaneous mass storage devices
366
367# ISA floppy
368fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
369#fdc1	at isa? port 0x370 irq ? drq ?
370fd*	at fdc? drive ?			# the drives themselves
371# some machines need you to do this instead of fd*
372#fd0	at fdc0 drive 0
373
374# ISA CD-ROM devices
375#mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives
376
377# ISA tape devices
378# note: the wt driver conflicts unpleasantly with SMC boards at the
379# same I/O address. The probe reprograms their EEPROMs. Don't
380# uncomment it unless you are actually using it.
381#wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives
382
383
384# Network Interfaces
385
386# PCI network interfaces
387#en*	at pci? dev ? function ?	# ENI/Adaptec ATM
388#ep*	at pci? dev ? function ?	# 3Com 3c59x/3c90x Ethernet
389#epic*	at pci? dev ? function ?	# SMC EPIC/100 Ethernet
390#esh*	at pci? dev ? function ?	# Essential HIPPI card
391#fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
392#fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
393#le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
394#ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
395#tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
396#tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
397
398# EISA network interfaces
399#ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
400#fea*	at eisa? slot ?			# DEC DEFEA FDDI
401
402# ISA Plug-and-Play network interfaces
403#ep*	at isapnp?			# 3Com 3c509 Ethernet
404#ne*	at isapnp?			# NE2000-compatible Ethernet
405
406# PCMCIA network interfaces
407ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
408mbe*	at pcmcia? function ?		# MB8696x based Ethernet
409ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
410sm*	at pcmcia? function ?		# Megahertz Ethernet
411
412# ISA network interfaces
413ate0	at isa? port 0x2a0 irq ?		# AT1700
414ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
415eg0	at isa? port 0x280 irq 9		# 3c505 Ethernet cards
416el0	at isa? port 0x300 irq 9		# 3c501 Ethernet cards
417ep0	at isa? port ? irq ?			# 3c509 Ethernet cards
418ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3c507
419ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
420fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
421ix0	at isa? port 0x300 irq 10		# EtherExpress/16
422iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
423lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
424#depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
425#le*	at depca?
426nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
427le*	at nele?
428bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
429le*	at bicc?
430ne0	at isa? port 0x280 irq 9		# NE[12]000 Ethernet cards
431ne1	at isa? port 0x300 irq 10
432sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
433we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
434we1	at isa? port 0x300 iomem 0xcc000 irq 10
435
436# MII bus support
437#mii*	at tl?
438
439# MII PHY network interfaces
440#tlphy*	at mii? dev ?			# ThunderLAN PHYs
441#nsphy*	at mii? dev ?			# NS and compatible PHYs
442#ukphy*	at mii? phy ?			# generic unknown PHYs
443
444
445# USB Controller and Devices
446
447# PCI USB controllers
448#uhci*	at pci?				# Universal Host Controller (Intel)
449#ohci*	at pci?				# Open Host Controller
450
451# USB bus support
452#usb*	at uhci?
453#usb*	at ohci?
454
455# USB Hubs
456#uhub*	at usb?
457#uhub*	at uhub? port ?
458
459# USB Mice
460#ums*	at uhub? port ?
461
462# USB Keyboards
463#ukbd*	at uhub? port ?
464
465# USB Generic HID devices
466#uhid*	at uhub? port ?
467
468# USB Printer
469#ulpt*	at uhub? port ?
470
471# USB Mass Storage
472#umass*	at uhub? port ? configuration ? interface ?
473#wd*	at umass?
474
475# USB Ethernet adapters
476#aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
477#axe*	at uhub? port ?		# ASIX AX88172 based adapters
478#cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
479#kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
480#url*	at uhub? port ?		# Realtek RTL8150L based adapters
481
482# Y@P firmware loader
483#uyap* at uhub? port ?
484
485# USB Generic driver
486#ugen*	at uhub? port ?
487
488# Audio Devices
489
490# PCI audio devices
491#eap*	at pci? dev ? function ?	# Ensoniq AudioPCI
492
493# ISA Plug-and-Play audio devices
494#guspnp* at isapnp?			# Gravis Ultra Sound PnP audio
495#sb*	at isapnp?			# SoundBlaster-compatible audio
496#ym*	at isapnp?			# Yamaha OPL3-SA[23] audio
497
498# ISA audio devices
499#aria0	at isa? port 0x290 irq 10 		# Aria
500#gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
501#pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
502#sb0	at isa? port 0x220 irq 5 drq 1 drq2 5	# SoundBlaster
503#wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System
504
505# Audio support
506#audio*	at audiobus?
507
508# The spkr driver provides a simple tone interface to the built in speaker.
509#spkr*	at pcppi?		# PC speaker
510#spkr*	at audio?		# PC speaker (synthesized)
511
512# Joysticks
513
514# ISA Plug-and-Play joysticks
515#joy*	at isapnp?			# Game ports (usually on audio cards)
516
517# ISA joysticks. Probe is a little strange; add only if you have one.
518#joy0	at isa? port 0x201
519
520
521# Miscellaneous Devices
522
523# Planetconnect Satellite receiver driver.
524#satlink0 at isa? port 0x300 drq 1
525
526
527# Pull in optional local configuration
528cinclude "arch/i386/conf/GENERIC.local"
529
530
531# Pseudo-Devices
532
533# disk/mass storage pseudo-devices
534#pseudo-device	ccd			# concatenated/striped disk devices
535pseudo-device	fss			# file system snapshot device
536#pseudo-device	md			# memory disk device (ramdisk)
537pseudo-device	vnd			# disk-like interface to files
538#options 	VND_COMPRESSION		# compressed vnd(4)
539
540# network pseudo-devices
541pseudo-device	bpfilter		# Berkeley packet filter
542pseudo-device	bridge			# simple inter-network bridging
543pseudo-device	ipfilter		# IP filter (firewall) and NAT
544pseudo-device	loop			# network loopback
545pseudo-device	ppp			# Point-to-Point Protocol
546pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
547#pseudo-device	sl			# Serial Line IP
548#pseudo-device	strip			# Starmode Radio IP (Metricom)
549pseudo-device	tun			# network tunneling over tty
550#pseudo-device	tap			# virtual Ethernet
551
552# miscellaneous pseudo-devices
553pseudo-device	pty			# pseudo-terminals
554#options 	RND_COM			# use "com" randomness as well (BROKEN)
555pseudo-device	clockctl		# user control of clock subsystem
556
557# wscons pseudo-devices
558pseudo-device	wsmux			# mouse & keyboard multiplexor
559