xref: /netbsd-src/sys/arch/i386/conf/INSTALL_TINY (revision 9616dacfef448e70e3fbbd865bddf60d54b656c5)
1#	$NetBSD: INSTALL_TINY,v 1.148 2016/12/13 20:42:18 christos Exp $
2#
3#	This kernel should be derived from INSTALL (which is derived
4#	from GENERIC) with some features commented out.
5#
6#	This kernel has been optimized for space. It is targeted towards
7#	small memory machines (4M). It has no SCSI, PCI or EISA. It does
8#	have pcmcia, for old laptops.
9#
10
11include "arch/i386/conf/std.i386"
12
13#options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
14
15makeoptions	COPTS="-Os"		# Optimise for space. Implies -O2
16makeoptions	USE_SSP="no"
17
18# Enable the hooks used for initializing the root memory-disk.
19options 	MEMORY_DISK_HOOKS
20options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
21options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
22options 	MEMORY_DISK_ROOT_SIZE=3100	# size of memory disk, in blocks
23options 	MEMORY_DISK_RBFLAGS=RB_SINGLE	# boot in single-user mode
24
25maxusers	2		# estimated number of users
26
27# CPU-related options.
28#options 	VM86		# virtual 8086 emulation
29#options 	USER_LDT	# user-settable LDT; used by WINE
30
31# This option allows you to force a serial console at the specified
32# I/O address.
33#options 	CONSDEVNAME="\"com\"",CONADDR=0x3f8,CONSPEED=9600
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
43options 	INSECURE	# disable kernel security levels
44
45options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
46#options 	NTP		# NTP phase/frequency locked loop
47
48#options 	KTRACE		# system call tracing via ktrace(1)
49
50#options 	SYSVSEM		# System V-like semaphores
51#options 	SYSVSHM		# System V-like memory sharing
52
53#options 	USERCONF	# userconf(4) support
54options 	PIPE_SOCKETPAIR		# smaller, but slower pipe(2)
55#options 	SYSCTL_INCLUDE_DESCR	# Include sysctl descriptions in kernel
56no options 	EXEC_AOUT	# we don't a.out support
57
58# Diagnostic/debugging support options
59#options 	DIAGNOSTIC	# inexpensive kernel consistency checks
60#options 	DEBUG		# expensive debugging checks/support
61#options 	DDB		# in-kernel debugger
62#options 	DDB_ONPANIC=1	# see also sysctl(7): `ddb.onpanic'
63#options 	DDB_HISTORY_SIZE=512	# enable history editing in DDB
64#options 	KGDB		# remote debugger
65#options 	KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
66#makeoptions	DEBUG="-g"	# compile full symbol table
67
68# Compatibility options
69#options 	COMPAT_NOMID	# NetBSD 0.8, 386BSD, and BSDI
70#options 	COMPAT_09	# NetBSD 0.9,
71#options 	COMPAT_10	# NetBSD 1.0,
72#options 	COMPAT_11	# NetBSD 1.1,
73#options 	COMPAT_12	# NetBSD 1.2 (and 386BSD and BSDI),
74#options 	COMPAT_13	# NetBSD 1.3 (and 386BSD and BSDI),
75#options 	COMPAT_14	# NetBSD 1.4,
76#options 	COMPAT_15	# NetBSD 1.5,
77#options 	COMPAT_16	# NetBSD 1.6,
78#options 	COMPAT_20	# NetBSD 2.0,
79#options 	COMPAT_30	# NetBSD 3.0,
80#options 	COMPAT_40	# NetBSD 4.0,
81#options 	COMPAT_50	# NetBSD 5.0,
82#options 	COMPAT_60	# NetBSD 6.0, and
83#options 	COMPAT_70	# NetBSD 7.0 binary compatibility.
84#options 	COMPAT_43	# 4.3BSD, 386BSD, and BSDI compatibility.
85#options 	COMPAT_386BSD_MBRPART # recognize old partition ID
86#options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
87
88#options 	COMPAT_SVR4	# binary compatibility with SVR4
89#options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
90#options 	COMPAT_LINUX	# binary compatibility with Linux
91#options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD
92options 	COMPAT_BSDPTY	# /dev/[pt]ty?? ptys.
93
94# File systems
95file-system	FFS		# UFS
96#file-system	EXT2FS		# second extended file system (linux)
97#file-system	LFS		# log-structured file system
98#file-system	MFS		# memory file system
99file-system	NFS		# Network File System client
100file-system	CD9660		# ISO 9660 + Rock Ridge file system
101file-system	MSDOSFS		# MS-DOS file system
102#file-system	FDESC		# /dev/fd
103#file-system	KERNFS		# /kern
104#file-system	NULLFS		# loopback file system
105#file-system	PROCFS		# /proc
106#file-system	UMAPFS		# NULLFS + uid and gid remapping
107#file-system	UNION		# union file system
108#file-system	PTYFS		# /dev/pts/N support
109#file-system	TMPFS		# Efficient memory file-system
110
111# Filesystem options
112#options 	QUOTA		# legacy UFS quotas
113#options 	QUOTA2		# new, in-filesystem UFS quotas
114#options 	NFSSERVER	# Network File System server
115options 	NFS_V2_ONLY	# Exclude NFS3 code to save space
116options 	FFS_NO_SNAPSHOT	# No FFS snapshot support
117#options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
118				# immutable) behave as system flags.
119
120# Networking options
121#options 	GATEWAY		# packet forwarding
122options 	INET		# IP + ICMP + TCP + UDP
123#options 	MROUTING	# IP multicast routing
124#options 	PIM		# Protocol Independent Multicast
125#options 	NETATALK	# AppleTalk networking protocols
126#options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
127#options 	PPP_DEFLATE	# Deflate compression support for PPP
128#options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
129#options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
130
131# These options enable verbose messages for several subsystems.
132# Warning, these may compile large string tables into the kernel!
133#options 	EISAVERBOSE	# verbose EISA device autoconfig messages
134#options 	PCIVERBOSE	# verbose PCI device autoconfig messages
135#options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
136#options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
137#options 	SCSIVERBOSE	# human readable SCSI error messages
138
139# Squeeze...
140options 	NVNODE=50
141options 	NBUF=20
142options 	BUFPAGES=20
143
144# Kernel root file system and dump configuration.
145config		netbsd	root on ? type ?
146#config		netbsd	root on sd0a type ffs
147#config		netbsd	root on ? type nfs
148
149#
150# wscons options
151#
152# builtin terminal emulations
153#options 	WSEMUL_SUN		# sun terminal emulation
154options 	WSEMUL_VT100		# VT100 / VT220 emulation
155# customization of console and kernel output - see dev/wscons/wsdisplayvar.h
156#options 	WSDISPLAY_CUSTOM_OUTPUT	# color customization from wsconsctl(8)
157#options 	WS_DEFAULT_FG=WSCOL_WHITE
158#options 	WS_DEFAULT_BG=WSCOL_BLACK
159#options 	WS_DEFAULT_COLATTR="(0)"
160#options 	WS_DEFAULT_MONOATTR="(0)"
161options 	WS_KERNEL_FG=WSCOL_GREEN
162#options 	WS_KERNEL_BG=WSCOL_BLACK
163#options 	WS_KERNEL_COLATTR=""
164#options 	WS_KERNEL_MONOATTR=""
165# customization of console border color
166#options 	WSDISPLAY_CUSTOM_BORDER	# border customization from wsconsctl(8)
167#options 	WSDISPLAY_BORDER_COLOR=WSCOL_BLUE	# default color
168# compatibility to other console drivers
169options 	WSDISPLAY_COMPAT_PCVT		# emulate some ioctls
170options 	WSDISPLAY_COMPAT_SYSCONS	# emulate some ioctls
171options 	WSDISPLAY_COMPAT_USL		# wsconscfg VT handling
172options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
173# see dev/pckbport/wskbdmap_mfii.c for implemented layouts
174#options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for pckbd driver
175#options 	UKBD_LAYOUT="(KB_DE | KB_NODEAD)"  # for ukbd driver
176# allocate a number of virtual screens at autoconfiguration time
177#options 	WSDISPLAY_DEFAULTSCREENS=4
178# use a large software cursor that doesn't blink
179options 	PCDISPLAY_SOFTCURSOR
180
181#
182# Device configuration
183#
184
185#apm0	at mainbus0			# Advanced power management
186
187
188# Basic Bus Support
189
190# PCI bus support
191#pci*	at mainbus? bus ?
192#pci*	at pchb? bus ?
193#pci*	at ppb? bus ?
194
195# PCI bridges
196#pchb*	at pci? dev ? function ?	# PCI-Host bridges
197#pceb*	at pci? dev ? function ?	# PCI-EISA bridges
198#pcib*	at pci? dev ? function ?	# PCI-ISA bridges
199#ppb*	at pci? dev ? function ?	# PCI-PCI bridges
200# XXX 'puc's aren't really bridges, but there's no better place for them here
201#puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
202
203# As well as 5 and 7, avoid irq 4 and 3 because we do not probe com* here
204options 	PCIC_ISA_INTR_ALLOC_MASK=0xff47
205
206# PCMCIA bus support
207pcmcia* at pcic? controller ? socket ?
208#pcmcia* at tcic? controller ? socket ?
209
210# ISA PCMCIA controllers
211pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
212pcic1	at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
213
214# EISA bus support
215#eisa0	at mainbus?
216#eisa0	at pceb?
217
218# ISA bus support
219isa0	at mainbus?
220#isa0	at pceb?
221#isa0	at pcib?
222
223# ISA Plug-and-Play bus support
224#isapnp0 at isa?
225
226
227# Console Devices
228
229# wscons
230pckbc0		at isa?			# PC keyboard controller
231pckbd*		at pckbc?		# PC keyboard
232pcdisplay0	at isa?			# CGA, MDA, EGA, HGA
233wsdisplay*	at pcdisplay? console ?
234wskbd*		at pckbd? console ?
235#wsmouse*	at pms? mux 0
236
237# Serial Devices
238
239# PCI serial interfaces
240#com*	at puc? port ?			# 16x50s on "universal" comm boards
241#cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
242
243# ISA Plug-and-Play serial interfaces
244#com*	at isapnp?			# Modems and serial boards
245
246# PCMCIA serial interfaces
247#com*	at pcmcia? function ?		# Modems and serial cards
248
249# ISA serial interfaces
250#options 	COM_HAYESP		# adds Hayes ESP serial board support
251#com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
252#com1	at isa? port 0x2f8 irq 3
253#com2	at isa? port 0x3e8 irq 5
254#com3	at isa? port 0x2e8 irq 9
255#ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
256#com*	at ast? slave ?
257#boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
258#com*	at boca? slave ?
259#rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
260#com*	at rtfps? slave ?
261#cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards
262
263
264# Parallel Printer Interfaces
265
266# PCI parallel printer interfaces
267#lpt*	at puc? port ?			# || ports on "universal" comm boards
268
269# ISA parallel printer interfaces
270#lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
271#lpt1	at isa? port 0x278
272#lpt2	at isa? port 0x3bc
273
274# I2O devices
275#iop*	at pci? dev ? function ?	# I/O processor
276#iopsp*	at iop? tid ?			# SCSI/FC-AL ports
277#ld*	at iop? tid ?			# block devices
278#dpti*	at iop? tid 0			# DPT/Adaptec control interface
279
280# SCSI Controllers and Devices
281
282# PCI SCSI controllers
283#ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
284#bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
285#dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
286#isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
287#mly*	at pci? dev ? function ?	# Mylex AcceleRAID and eXtremeRAID
288#siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
289
290# EISA SCSI controllers
291#ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
292#ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
293#bha*	at eisa? slot ?			# BusLogic 7xx SCSI
294#dpt*	at eisa? slot ?			# DPT SmartCache/SmartRAID
295#uha*	at eisa? slot ?			# UltraStor 24f SCSI
296
297# PCMCIA SCSI controllers
298#aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
299
300# ISA Plug-and-Play SCSI controllers
301#aic*	at isapnp?			# Adaptec AHA-1520B
302
303# ISA SCSI controllers
304#aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
305#aha1	at isa? port 0x334 irq ? drq ?
306#ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
307#aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
308#bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
309#bha1	at isa? port 0x334 irq ? drq ?
310# The "nca" and "dpt" probes might give false hits or hang your machine.
311#dpt0	at isa? port 0x170 irq ? drq ?	# DPT SmartCache/SmartRAID
312#nca0	at isa? port 0x360 irq 15	# Port-mapped NCR 53C80 controller
313#nca1	at isa? iomem 0xd8000 irq 5	# Memory-mapped controller (T128, etc.)
314#sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
315#uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
316#uha1	at isa? port 0x340 irq ? drq ?
317#wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
318#wds1	at isa? port 0x358 irq 11 drq 5
319
320# SCSI bus support
321#scsibus* at scsi?
322
323# SCSI devices
324#sd*	at scsibus? target ? lun ?	# SCSI disk drives
325#st*	at scsibus? target ? lun ?	# SCSI tape drives
326#cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
327#ch*	at scsibus? target ? lun ?	# SCSI autochangers
328#ss*	at scsibus? target ? lun ?	# SCSI scanners
329#uk*	at scsibus? target ? lun ?	# SCSI unknown
330
331
332# RAID controllers and devices
333#aac*	at pci? dev ? function ?	# Adaptec AAC family
334#cac*	at eisa? slot ?			# Compaq EISA array controllers
335#cac*	at pci? dev ? function ?	# Compaq PCI array controllers
336#ciss*	at pci? dev ? function ?	# HP Smart Array controllers
337#icp*	at pci? dev ? function ?	# ICP-Vortex GDT & Intel RAID
338#mlx*	at pci? dev ? function ?	# Mylex DAC960 & DEC SWXCR family
339#mlx*	at eisa? slot ?			# Mylex DAC960 & DEC SWXCR family
340#twe*	at pci? dev ? function ?	# 3ware Escalade RAID controllers
341
342#ld*	at aac? unit ?			# logical disk devices
343#ld*	at cac? unit ?
344#ld*	at icp? unit ?
345#ld*	at twe? unit ?
346#ld*	at mlx? unit ?
347
348#icpsp*	at icp? unit ?			# SCSI pass-through
349
350
351# IDE and related devices
352
353# PCMCIA IDE controllers
354wdc*	at pcmcia? function ?
355
356# ST506, ESDI, and ISA IDE controllers
357# Use flags 0x01 if you want to try to use 32bits data I/O (the driver will
358# fall back to 16bits I/O if 32bits I/O are not functional).
359# Some controllers pass the initial 32bit test, but will fail later.
360wdc0	at isa? port 0x1f0 irq 14 flags 0x00
361wdc1	at isa? port 0x170 irq 15 flags 0x00
362
363# ATA (IDE) bus support
364atabus* at ata?
365
366# IDE drives
367wd*	at atabus? drive ?		# the drives themselves
368
369# ATAPI bus support
370atapibus* at atapi?
371
372# ATAPI devices
373cd*	at atapibus? drive ?		# ATAPI CD-ROM drives
374#sd*	at atapibus? drive ?		# ATAPI disk drives
375
376
377# Miscellaneous mass storage devices
378
379# ISA floppy
380fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
381#fdc1	at isa? port 0x370 irq ? drq ?
382fd*	at fdc? drive ?			# the drives themselves
383# some machines need you to do this instead of fd*
384#fd0	at fdc0 drive 0
385
386# ISA CD-ROM devices
387#mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives
388
389# ISA tape devices
390# note: the wt driver conflicts unpleasantly with ed devices at the
391# same I/O address. The probe reprograms their EEPROMs. Don't
392# uncomment it unless you are actually using it.
393#wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives
394
395
396# Network Interfaces
397
398# PCI network interfaces
399#en*	at pci? dev ? function ?	# ENI/Adaptec ATM
400#ep*	at pci? dev ? function ?	# 3Com 3c59x/3c90x Ethernet
401#fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
402#fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
403#le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
404#ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
405#tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
406#tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
407
408# EISA network interfaces
409#ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
410#fea*	at eisa? slot ?			# DEC DEFEA FDDI
411
412# ISA Plug-and-Play network interfaces
413#ep*	at isapnp?			# 3Com 3c509 Ethernet
414#ne*	at isapnp?			# NE2000-compatible Ethernet
415
416# PCMCIA network interfaces
417ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
418mbe*	at pcmcia? function ?		# MB8696x based Ethernet
419ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
420sm*	at pcmcia? function ?		# Megahertz Ethernet
421
422# ISA network interfaces
423ate0	at isa? port 0x2a0 irq ?		# AT1700
424ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
425#eg0	at isa? port 0x280 irq 9		# 3c505 Ethernet cards
426#el0	at isa? port 0x300 irq 9		# 3c501 Ethernet cards
427ep0	at isa? port ? irq ?			# 3c509 Ethernet cards
428#ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3c507
429ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
430fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
431ix0	at isa? port 0x300 irq 10		# EtherExpress/16
432iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
433lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
434#depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
435#le*	at depca?
436#nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
437#le*	at nele?
438#bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
439#le*	at bicc?
440ne0	at isa? port 0x280 irq 9		# NE[12]000 Ethernet cards
441ne1	at isa? port 0x300 irq 10
442sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
443we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
444we1	at isa? port 0x300 iomem 0xcc000 irq 10
445
446# MII bus support
447#mii*	at tl?
448
449# MII PHY network interfaces
450#tlphy*	at mii? dev ?			# ThunderLAN PHYs
451#nsphy*	at mii? dev ?			# NS and compatible PHYs
452#ukphy*	at mii? phy ?			# generic unknown PHYs
453
454
455# Audio Devices
456
457# ISA Plug-and-Play audio devices
458#guspnp* at isapnp?			# Gravis Ultra Sound PnP audio
459#sb*	at isapnp?			# SoundBlaster-compatible audio
460
461# ISA audio devices
462#gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
463#pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
464#sb0	at isa? port 0x220 irq 7 drq 1 drq2 5	# SoundBlaster
465#wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System
466
467# Audio support
468#audio*	at audiobus?
469
470# The spkr driver provides a simple tone interface to the built in speaker.
471#spkr*	at pcppi?		# PC speaker
472#spkr*	at audio?		# PC speaker (synthesized)
473
474
475# Joysticks
476
477# ISA Plug-and-Play joysticks
478#joy*	at isapnp?			# Game ports (usually on audio cards)
479
480# ISA joysticks. Probe is a little strange; add only if you have one.
481#joy0	at isa? port 0x201
482
483
484# Miscellaneous Devices
485
486# Planetconnect Satellite receiver driver.
487#satlink0 at isa? port 0x300 drq 1
488
489
490# Pull in optional local configuration
491cinclude "arch/i386/conf/INSTALL.local"
492
493
494# Pseudo-Devices
495
496# disk/mass storage pseudo-devices
497#pseudo-device	ccd			# concatenated/striped disk devices
498#pseudo-device	fss			# file system snapshot device
499pseudo-device	md			# memory disk device (ramdisk)
500#pseudo-device	vnd			# disk-like interface to files
501
502# network pseudo-devices
503#pseudo-device	bpfilter		# Berkeley packet filter
504#pseudo-device	ipfilter		# IP filter (firewall) and NAT
505pseudo-device	loop			# network loopback
506#pseudo-device	ppp			# Point-to-Point Protocol
507#pseudo-device	sl			# Serial Line IP
508#pseudo-device	strip			# Starmode Radio IP (Metricom)
509#pseudo-device	tun			# network tunneling over tty
510
511# miscellaneous pseudo-devices
512pseudo-device	pty			# pseudo-terminals
513options 	NO_DEV_PTM
514#options 	RND_COM			# use "com" randomness as well (BROKEN)
515