GENERIC_TINY revision 1.66
1#	$NetBSD: GENERIC_TINY,v 1.66 2004/06/26 07:32:06 abs 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"
12
13maxusers	8		# estimated number of users
14
15# CPU support.  At least one is REQUIRED.
16options 	I386_CPU
17options 	I486_CPU
18options 	I586_CPU
19options 	I686_CPU
20
21# CPU-related options.
22options 	MATH_EMULATE	# floating point emulation
23#options 	VM86		# virtual 8086 emulation
24#options 	USER_LDT	# user-settable LDT; used by WINE
25# insert delay no-ops in interrupts; recommended on very old machines
26options 	PIC_DELAY
27
28# Misc. i386-specific options
29#options 	XSERVER		# X server support in console drivers
30
31# This option allows you to force a serial console at the specified
32# I/O address.   see console(4) for details.
33#options 	CONSDEVNAME="\"com\""
34
35# The following options override the memory sizes passed in from the boot
36# block.  Use them *only* if the boot block is unable to determine the correct
37# values.  Note that the BIOS may *correctly* report less than 640k of base
38# memory if the extended BIOS data area is located at the top of base memory
39# (as is the case on most recent systems).
40#options 	REALBASEMEM=...	# size of base memory
41#options 	REALEXTMEM=...	# size of extended memory
42
43# Save a physical page per process by not setting a kernel stack red zone.
44options 	NOREDZONE
45
46# Standard system options
47
48options 	INSECURE	# disable kernel security levels - X needs this
49
50options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
51#options 	NTP		# NTP phase/frequency locked loop
52
53#options 	KTRACE		# system call tracing via ktrace(1)
54
55#options 	SYSVMSG		# System V-like message queues
56#options 	SYSVSEM		# System V-like semaphores
57#options 	SYSVSHM		# System V-like memory sharing
58#options 	SHMMAXPGS=2048	# 2048 pages is the default
59
60options 	NMBCLUSTERS=256
61
62#options 	LKM		# loadable kernel modules
63
64#options 	USERCONF	# userconf(4) support
65options 	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
66
67# Diagnostic/debugging support options
68#options 	DIAGNOSTIC	# expensive 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_ONPANIC=1	# see also sysctl(8): `ddb.onpanic'
73#options 	DDB_HISTORY_SIZE=512	# enable history editing in DDB
74#options 	KGDB		# remote debugger
75#options 	KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
76#makeoptions	DEBUG="-g"	# compile full symbol table
77
78# Compatibility options
79#options 	COMPAT_NOMID	# NetBSD 0.8, 386BSD, and BSDI
80#options 	COMPAT_09	# NetBSD 0.9
81#options 	COMPAT_10	# NetBSD 1.0
82#options 	COMPAT_11	# NetBSD 1.1
83options 	COMPAT_12	# NetBSD 1.2, 386BSD, and BSDI
84options 	COMPAT_13	# NetBSD 1.3, 386BSD, and BSDI
85options 	COMPAT_14	# NetBSD 1.4
86options 	COMPAT_15	# NetBSD 1.5
87options 	COMPAT_16	# NetBSD 1.6
88options 	COMPAT_43	# 4.3BSD, 386BSD, and BSDI
89options 	COMPAT_386BSD_MBRPART # recognize old partition ID
90#options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
91
92#options 	COMPAT_SVR4	# binary compatibility with SVR4
93#options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
94#options 	COMPAT_LINUX	# binary compatibility with Linux
95#options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD
96
97# File systems
98file-system 	FFS		# UFS
99#file-system 	EXT2FS		# second extended file system (linux)
100#file-system 	LFS		# log-structured file system
101#file-system 	MFS		# memory file system
102file-system 	NFS		# Network File System client
103file-system 	CD9660		# ISO 9660 + Rock Ridge file system
104file-system 	MSDOSFS		# MS-DOS file system
105#file-system 	FDESC		# /dev/fd
106file-system 	KERNFS		# /kern
107#file-system 	NULLFS		# loopback file system
108#file-system 	PORTAL		# portal filesystem (still experimental)
109#file-system 	PROCFS		# /proc
110#file-system 	UMAPFS		# NULLFS + uid and gid remapping
111#file-system 	UNION		# union file system
112
113# File system options
114#options 	QUOTA		# UFS quotas
115#options 	FFS_EI		# FFS Endian Independant support
116#options 	NFSSERVER	# Network File System server
117#options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
118				# immutable) behave as system flags.
119options 	VNODE_OP_NOINLINE # don't inline vnode op calls
120
121# Networking options
122#options 	GATEWAY		# packet forwarding
123options 	INET		# IP + ICMP + TCP + UDP
124#options 	MROUTING	# IP multicast routing
125#options 	NS		# XNS
126#options 	NSIP		# XNS tunneling over IP
127#options 	ISO,TPIP	# OSI
128#options 	EON		# OSI tunneling over IP
129#options 	CCITT,LLC,HDLC	# X.25
130#options 	NETATALK	# AppleTalk networking protocols
131#options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
132#options 	PPP_DEFLATE	# Deflate compression support for PPP
133#options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
134#options 	PFIL_HOOKS	# pfil(9) packet filter hooks
135#options 	IPFILTER_LOG	# ipmon(8) log support
136#options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
137#options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
138
139#options 	ALTQ		# Manipulate network interfaces' output queues
140#options 	ALTQ_BLUE	# Stochastic Fair Blue
141#options 	ALTQ_CBQ	# Class-Based Queueing
142#options 	ALTQ_CDNR	# Diffserv Traffic Conditioner
143#options 	ALTQ_FIFOQ	# First-In First-Out Queue
144#options 	ALTQ_FLOWVALVE	# RED/flow-valve (red-penalty-box)
145#options 	ALTQ_HFSC	# Hierarchical Fair Service Curve
146#options 	ALTQ_LOCALQ	# Local queueing discipline
147#options 	ALTQ_PRIQ	# Priority Queueing
148#options 	ALTQ_RED	# Random Early Detection
149#options 	ALTQ_RIO	# RED with IN/OUT
150#options 	ALTQ_WFQ	# Weighted Fair Queueing
151
152# These options enable verbose messages for several subsystems.
153# Warning, these may compile large string tables into the kernel!
154#options 	EISAVERBOSE	# verbose EISA device autoconfig messages
155#options 	PCIVERBOSE	# verbose PCI device autoconfig messages
156#options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
157#options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
158#options 	SCSIVERBOSE	# human readable SCSI error messages
159#options 	USBVERBOSE	# verbose USB device autoconfig messages
160
161#options 	NFS_BOOT_BOOTP,NFS_BOOT_BOOTPARAM
162
163# Kernel root file system and dump configuration.
164config		netbsd	root on ? type ?
165#config		netbsd	root on sd0a type ffs
166#config		netbsd	root on ? type nfs
167
168#
169# wscons options
170#
171# builtin terminal emulations
172#options 	WSEMUL_SUN		# sun terminal emulation
173options 	WSEMUL_VT100		# VT100 / VT220 emulation
174# different kernel output - see dev/wscons/wsdisplayvar.h
175options 	WS_KERNEL_FG=WSCOL_GREEN
176#options 	WS_KERNEL_BG=WSCOL_BLACK
177# compatibility to other console drivers
178options 	WSDISPLAY_COMPAT_PCVT		# emulate some ioctls
179options 	WSDISPLAY_COMPAT_SYSCONS	# emulate some ioctls
180options 	WSDISPLAY_COMPAT_USL		# VT handling
181options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
182# see dev/pckbc/wskbdmap_mfii.c for implemented layouts
183#options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
184# allocate a number of virtual screens at autoconfiguration time
185#options 	WSDISPLAY_DEFAULTSCREENS=4
186# use a large software cursor that doesn't blink
187options 	PCDISPLAY_SOFTCURSOR
188
189#
190# Device configuration
191#
192
193mainbus0 at root
194
195cpu0 at mainbus0
196
197#apm0	at mainbus0			# Advanced power management
198
199
200# Basic Bus Support
201
202# PCI bus support
203#pci*	at mainbus? bus ?
204#pci*	at pchb? bus ?
205#pci*	at ppb? bus ?
206
207# PCI bridges
208#pchb*	at pci? dev ? function ?	# PCI-Host bridges
209#pceb*	at pci? dev ? function ?	# PCI-EISA bridges
210#pcib*	at pci? dev ? function ?	# PCI-ISA bridges
211#ichlpcib* at pci? dev ? function ?	# Intel ICH PCI-ISA w/ watchdog support
212#ppb*	at pci? dev ? function ?	# PCI-PCI bridges
213# XXX 'puc's aren't really bridges, but there's no better place for them here
214#puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
215
216# EISA bus support
217#eisa0	at mainbus?
218#eisa0	at pceb?
219
220# ISA bus support
221isa0	at mainbus?
222#isa0	at pceb?
223#isa0	at pcib?
224#isa0	at ichlpcib?
225
226# PCMCIA bus support
227pcmcia*	at pcic? controller ? socket ?
228
229# ISA PCMCIA controllers
230pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000
231pcic1	at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000
232
233# ISA Plug-and-Play bus support
234#isapnp0	at isa?
235
236# ISA Plug-and-Play PCMCIA controllers
237#pcic*	at isapnp?
238
239# Coprocessor Support
240
241# Math Coprocessor support
242npx0	at isa? port 0xf0 irq 13	# x86 math coprocessor
243
244# Console Devices
245
246# ISA console
247#pc0	at isa? port 0x60 irq 1		# pccons generic PC console driver
248
249# wscons
250pckbc0 		at isa?			# pc keyboard controller
251pckbd* 		at pckbc?		# PC keyboard
252#pms*		at pckbc?		# PS/2 mouse for wsmouse
253vga0		at isa?
254#vga*		at pci? dev ? function ?
255pcdisplay0 	at isa?			# CGA, MDA, EGA, HGA
256wsdisplay*	at vga? console ?
257wsdisplay* 	at pcdisplay? console ?
258wskbd* 		at pckbd? console ?
259#wsmouse*	at pms? mux 0
260
261
262#pcppi0	at isa?
263#sysbeep0	at pcppi?
264
265# Serial Devices
266
267# PCI serial interfaces
268#com*	at puc? port ?			# 16x50s on "universal" comm boards
269#cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
270
271# ISA Plug-and-Play serial interfaces
272#com*	at isapnp?			# Modems and serial boards
273
274# PCMCIA serial interfaces
275com*	at pcmcia? function ?		# Modems and serial cards
276
277# ISA serial interfaces
278#options 	COM_HAYESP		# adds Hayes ESP serial board support
279com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
280com1	at isa? port 0x2f8 irq 3
281com2	at isa? port 0x3e8 irq 5
282#com3	at isa? port 0x2e8 irq 9
283#ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
284#com*	at ast? slave ?
285#boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
286#com*	at boca? slave ?
287#rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
288#com*	at rtfps? slave ?
289#cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards
290
291
292# Parallel Printer Interfaces
293
294# PCI parallel printer interfaces
295#lpt*	at puc? port ?			# || ports on "universal" comm boards
296
297# ISA parallel printer interfaces
298lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
299#lpt1	at isa? port 0x278
300#lpt2	at isa? port 0x3bc
301
302
303# SCSI Controllers and Devices
304
305# PCI SCSI controllers
306#ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
307#dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
308#bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
309#isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
310#siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
311#esiop*	at pci? dev ? function ?	# NCR 53c875 SCSI and newer
312#options 	SIOP_SYMLED		# drive the act. LED in software
313
314# EISA SCSI controllers
315#ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
316#ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
317#bha*	at eisa? slot ?			# BusLogic 7xx SCSI
318#dpt*	at eisa? slot ?			# DPT SmartCache/SmartRAID
319#uha*	at eisa? slot ?			# UltraStor 24f SCSI
320
321# PCMCIA SCSI controllers
322#aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
323
324# ISA Plug-and-Play SCSI controllers
325#aic*	at isapnp?			# Adaptec AHA-1520B
326
327# ISA SCSI controllers
328#aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
329#aha1	at isa? port 0x334 irq ? drq ?
330#ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
331#aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
332#bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
333#bha1	at isa? port 0x334 irq ? drq ?
334#sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
335#uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
336#uha1	at isa? port 0x340 irq ? drq ?
337#wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
338#wds1	at isa? port 0x358 irq 11 drq 5
339
340# SCSI bus support
341#scsibus* at scsi?
342
343# SCSI devices
344#sd*	at scsibus? target ? lun ?	# SCSI disk drives
345#st*	at scsibus? target ? lun ?	# SCSI tape drives
346#cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
347#ch*	at scsibus? target ? lun ?	# SCSI autochangers
348#ss*	at scsibus? target ? lun ?	# SCSI scanners
349#uk*	at scsibus? target ? lun ?	# SCSI unknown
350
351
352# IDE and related devices
353
354# ISA Plug-and-Play IDE controllers
355#wdc*	at isapnp?
356
357# PCMCIA IDE controllers
358wdc*	at pcmcia? function ?
359
360# ISA IDE controllers
361wdc0	at isa? port 0x1f0 irq 14	# ST506, ESDI, and IDE controllers
362wdc1	at isa? port 0x170 irq 15
363
364# ATA (IDE) bus support
365atabus* at ata?
366
367# IDE drives
368wd*	at atabus? drive ?			# the drives themselves
369
370# ATAPI bus support
371atapibus* at atapi?
372
373# ATAPI devices
374cd*	at atapibus? drive ?		# ATAPI CD-ROM drives
375sd*	at atapibus? drive ?		# ATAPI disk drives
376
377
378# Miscellaneous mass storage devices
379
380# ISA floppy
381fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
382#fdc1	at isa? port 0x370 irq ? drq ?
383fd*	at fdc? drive ?			# the drives themselves
384# some machines need you to do this instead of fd*
385#fd0	at fdc0 drive 0
386
387# ISA CD-ROM devices
388#mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives
389
390# ISA tape devices
391# note: the wt driver conflicts unpleasantly with SMC boards at the
392# same I/O address. The probe reprograms their EEPROMs. Don't
393# uncomment it unless you are actually using it.
394#wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives
395
396
397# Network Interfaces
398
399# PCI network interfaces
400#en*	at pci? dev ? function ?	# ENI/Adaptec ATM
401#ep*	at pci? dev ? function ?	# 3Com 3c59x/3c90x Ethernet
402#epic*	at pci? dev ? function ?	# SMC EPIC/100 Ethernet
403#esh*	at pci? dev ? function ?	# Essential HIPPI card
404#fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
405#fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
406#le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
407#ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
408#tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
409#tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
410
411# EISA network interfaces
412#ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
413#fea*	at eisa? slot ?			# DEC DEFEA FDDI
414
415# ISA Plug-and-Play network interfaces
416#ep*	at isapnp?			# 3Com 3c509 Ethernet
417#ne*	at isapnp?			# NE2000-compatible Ethernet
418
419# PCMCIA network interfaces
420ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
421mbe*	at pcmcia? function ?		# MB8696x based Ethernet
422ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
423sm*	at pcmcia? function ?		# Megahertz Ethernet
424
425# ISA network interfaces
426ate0	at isa? port 0x2a0 irq ?		# AT1700
427ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
428eg0	at isa? port 0x280 irq 9		# 3C505 ethernet cards
429el0	at isa? port 0x300 irq 9		# 3C501 ethernet cards
430ep0	at isa? port ? irq ?			# 3C509 ethernet cards
431ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3C507
432ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
433fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
434ix0	at isa? port 0x300 irq 10		# EtherExpress/16
435iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
436lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
437#depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
438#le*	at depca?
439nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
440le*	at nele?
441bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
442le*	at bicc?
443ne0	at isa? port 0x280 irq 9		# NE[12]000 ethernet cards
444ne1	at isa? port 0x300 irq 10
445sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
446we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
447we1	at isa? port 0x300 iomem 0xcc000 irq 10
448
449# MII bus support
450#mii*	at tl?
451
452# MII PHY network interfaces
453#tlphy*	at mii? dev ?			# ThunderLAN PHYs
454#nsphy*	at mii? dev ?			# NS and compatible PHYs
455#ukphy*	at mii? phy ?			# generic unknown PHYs
456
457
458# USB Controller and Devices
459
460# PCI USB controllers
461#uhci*	at pci?				# Universal Host Controller (Intel)
462#ohci*	at pci?				# Open Host Controller
463
464# USB bus support
465#usb*	at uhci?
466#usb*	at ohci?
467
468# USB Hubs
469#uhub*	at usb?
470#uhub*	at uhub? port ?
471
472# USB Mice
473#ums*	at uhub? port ?
474
475# USB Keyboards
476#ukbd*	at uhub? port ?
477
478# USB Generic HID devices
479#uhid*	at uhub? port ?
480
481# USB Printer
482#ulpt*	at uhub? port ?
483
484# USB Mass Storage
485#umass*	at uhub? port ? configuration ? interface ?
486#scsibus* at umass?
487#wd*	at umass?
488
489# USB Ethernet adapters
490#aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
491#cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
492#kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
493#uax*	at uhub? port ?		# ASIX AX88172 based adapters
494#url*	at uhub? port ?		# Realtek RTL8150L based adapters
495
496# Y@P firmware loader
497#uyap* at uhub? port ?
498
499# USB Generic driver
500#ugen*	at uhub? port ?
501
502# Audio Devices
503
504# PCI audio devices
505#eap*	at pci? dev ? function ?	# Ensoniq AudioPCI
506
507# ISA Plug-and-Play audio devices
508#guspnp*	at isapnp?			# Gravis Ultra Sound PnP audio
509#sb*	at isapnp?			# SoundBlaster-compatible audio
510#ym*	at isapnp?			# Yamaha OPL3-SA3 audio
511
512# ISA audio devices
513#aria0	at isa? port 0x290 irq 10 		# Aria
514#gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
515#pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
516#pss0	at isa? port 0x220 irq 7 drq 6		# Personal Sound System
517#sp0	at pss0 port 0x530 irq 10 drq 0		# 	sound port driver
518#sb0	at isa? port 0x220 irq 5 drq 1 drq2 5	# SoundBlaster
519#wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System
520
521# Audio support
522#audio*	at audiobus?
523
524# The spkr driver provides a simple tone interface to the built in speaker.
525#spkr0	at pcppi?		# PC speaker
526
527
528# Joysticks
529
530# ISA Plug-and-Play joysticks
531#joy*	at isapnp?			# Game ports (usually on audio cards)
532
533# ISA joysticks. Probe is a little strange; add only if you have one.
534#joy0	at isa? port 0x201
535
536
537# Miscellaneous Devices
538
539# Planetconnect Satellite receiver driver.
540#satlink0 at isa? port 0x300 drq 1
541
542
543# Pull in optional local configuration
544include	"arch/i386/conf/GENERIC.local"
545
546
547# Pseudo-Devices
548
549# disk/mass storage pseudo-devices
550#pseudo-device	ccd		4	# concatenated/striped disk devices
551#pseudo-device	md		1	# memory disk device (ramdisk)
552pseudo-device	vnd		4	# disk-like interface to files
553
554# network pseudo-devices
555pseudo-device	bpfilter	8	# Berkeley packet filter
556pseudo-device	bridge			# simple inter-network bridging
557pseudo-device	ipfilter		# IP filter (firewall) and NAT
558pseudo-device	loop			# network loopback
559pseudo-device	ppp		2	# Point-to-Point Protocol
560pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
561#pseudo-device	sl		2	# Serial Line IP
562#pseudo-device	strip		2	# Starmode Radio IP (Metricom)
563pseudo-device	tun		2	# network tunneling over tty
564
565# miscellaneous pseudo-devices
566pseudo-device	pty			# pseudo-terminals
567#pseudo-device	tb		1	# tablet line discipline
568pseudo-device	rnd			# /dev/random and in-kernel generator
569#options 	RND_COM			# use "com" randomness as well (BROKEN)
570pseudo-device	clockctl		# user control of clock subsystem
571