xref: /freebsd/sys/i386/conf/NOTES (revision 30548b45b9f1c06b730ff05c1fe483325f694110)
1#
2# LINT -- config file for checking all the sources, tries to pull in
3#	as much of the source tree as it can.
4#
5#	$Id: LINT,v 1.280 1996/09/19 08:27:58 phk Exp $
6#
7# NB: You probably don't want to try running a kernel built from this
8# file.  Instead, you should start from GENERIC, and add options from
9# this file as required.
10#
11
12#
13# This directive is mandatory; it defines the architecture to be
14# configured for; in this case, the 386 family.  You must also specify
15# at least one CPU (the one you intend to run on); deleting the
16# specification for CPUs you don't need to use may make parts of the
17# system run faster
18#
19machine		"i386"
20cpu		"I386_CPU"
21cpu		"I486_CPU"
22cpu		"I586_CPU"		# aka Pentium(tm)
23cpu		"I686_CPU"		# aka Pentium Pro(tm)
24
25#
26# This is the ``identification'' of the kernel.  Usually this should
27# be the same as the name of your kernel.
28#
29ident		LINT
30
31#
32# The `maxusers' parameter controls the static sizing of a number of
33# internal system tables by a complicated formula defined in param.c.
34#
35maxusers	10
36
37#
38# Under some circumstances it is necessary to make the default max
39# number of processes per user and open files per user more than the
40# defaults on bootup.  (an example is a large news server in which
41# the uid, news, can sometimes need > 100 simultaneous processes running,
42# or perhaps a user using lots of windows under X).
43options		CHILD_MAX=128
44options		OPEN_MAX=128
45
46#
47# Under some circumstances it is useful to have an extra number of
48# vnode data structures allocated at boot time.  In particular,
49# usenet news servers can benefit if there are enough vnodes to
50# cache the busiest newsgroup and overview directories.  Beware that
51# this is an expensive option, it consumes physical non-pageable ram.
52# A busy news server may benefit from 10,000 extra vnodes or so.
53#
54options		EXTRAVNODES=1
55
56#
57# A math emulator is mandatory if you wish to run on hardware which
58# does not have a floating-point processor.  Pick either the original,
59# bogus (but freely-distributable) math emulator, or a much more
60# fully-featured but GPL-licensed emulator taken from Linux.
61#
62options		MATH_EMULATE		#Support for x87 emulation
63# Don't enable both of these in a real config.
64options		GPL_MATH_EMULATE	#Support for x87 emulation via
65					#new math emulator
66
67# When this is set, be extra conservative in various parts of the kernel
68# and choose functionality over speed (on the widest variety of systems).
69options		FAILSAFE
70
71
72# When this is set, copyin/copyout will use an unrolled loop using
73# floating point registers.  It makes copyin/copyout run 30-100%
74# faster on Pentiums and makes no difference or slower on non-Pentium
75# (including P6) systems.
76#
77# However, even when this is set, there is a run-time check for CPU
78# type so the routine will never be invoked for a wrong architecture.
79# It will become the default after some testing period.
80options		"I586_FAST_BCOPY"
81
82#
83# This directive defines a number of things:
84#  - The compiled kernel is to be called `kernel'
85#  - The root filesystem might be on partition wd0a
86#  - Crash dumps will be written to wd0b, if possible.  Specifying the
87#    dump device here is not recommended.  Use dumpon(8).
88#
89config		kernel	root on wd0 dumps on wd0
90
91
92#####################################################################
93# COMPATIBILITY OPTIONS
94
95#
96# Implement system calls compatible with 4.3BSD and older versions of
97# FreeBSD.  You probably do NOT want to remove this as much current code
98# still relies on the 4.3 emulation.
99#
100options		"COMPAT_43"
101
102#
103# Allow user-mode programs to manipulate their local descriptor tables.
104# This option is required for the WINE Windows(tm) emulator, and is
105# not used by anything else (that we know of).
106#
107options		USER_LDT		#allow user-level control of i386 ldt
108
109#
110# These three options provide support for System V Interface
111# Definition-style interprocess communication, in the form of shared
112# memory, semaphores, and message queues, respectively.
113#
114options		SYSVSHM
115options		SYSVSEM
116options		SYSVMSG
117
118
119#####################################################################
120# DEBUGGING OPTIONS
121
122#
123# Enable the kernel debugger.
124#
125options		DDB
126
127#
128# Don't drop into DDB for a panic. Intended for unattended operation
129# where you may want to drop to DDB from the console, but still want
130# the machine to recover from a panic
131#
132options		DDB_UNATTENDED
133
134#
135# KTRACE enables the system-call tracing facility ktrace(2).
136#
137options		KTRACE			#kernel tracing
138
139#
140# The DIAGNOSTIC option is used in a number of source files to enable
141# extra sanity checking of internal structures.  This support is not
142# enabled by default because of the extra time it would take to check
143# for these conditions, which can only occur as a result of
144# programming errors.
145#
146options		DIAGNOSTIC
147
148#
149# PERFMON causes the driver for Pentium/Pentium Pro performance counters
150# to be compiled.  See perfmon(4) for more information.
151#
152options		PERFMON
153
154# XXX - this doesn't belong here.
155# Allow ordinary users to take the console - this is useful for X.
156options		UCONSOLE
157
158# XXX - this doesn't belong here either
159options		USERCONFIG		#boot -c editor
160options		VISUAL_USERCONFIG	#visual boot -c editor
161
162#####################################################################
163# NETWORKING OPTIONS
164
165#
166# Protocol families:
167#  Only the INET (Internet) family is officially supported in FreeBSD.
168#  Source code for the NS (Xerox Network Service), ISO (OSI), and
169#  CCITT (X.25) families is provided for amusement value, although we
170#  try to ensure that it actually compiles.
171#
172options		INET			#Internet communications protocols
173
174options		IPX			#IPX/SPX communications protocols
175options		IPXIP			#IPX in IP encapsulation (not available)
176options		IPTUNNEL		#IP in IPX encapsulation (not available)
177options		IPXPRINTFS=0		#IPX/SPX Console Debugging Information
178options		IPX_ERRPRINTFS=0	#IPX/SPX Console Debugging Information
179
180options		NETATALK		#Appletalk communications protocols
181
182# These are currently broken and are no longer shipped due to lack
183# of interest.
184#options		CCITT			#X.25 network layer
185#options		ISO
186#options		TPIP			#ISO TP class 4 over IP
187#options		TPCONS			#ISO TP class 0 over X.25
188#options		LLC			#X.25 link layer for Ethernets
189#options		HDLC			#X.25 link layer for serial lines
190#options		EON			#ISO CLNP over IP
191#options		NS			#Xerox NS protocols
192#options		NSIP			#XNS over IP
193
194#
195# Network interfaces:
196#  The `loop' pseudo-device is MANDATORY when networking is enabled.
197#  The `ether' pseudo-device provides generic code to handle
198#  Ethernets; it is MANDATORY when a Ethernet device driver is
199#  configured.
200#  The 'fddi' pseudo-device provides generic code to support FDDI.
201#  The `sppp' pseudo-device serves a similar role for certain types
202#  of synchronous PPP links (like `cx', `ar').
203#  The `sl' pseudo-device implements the Serial Line IP (SLIP) service.
204#  The `ppp' pseudo-device implements the Point-to-Point Protocol.
205#  The `bpfilter' pseudo-device enables the Berkeley Packet Filter.  Be
206#  aware of the legal and administrative consequences of enabling this
207#  option.  The number of devices determines the maximum number of
208#  simultaneous BPF clients programs runnable.
209#  The `disc' pseudo-device implements a minimal network interface,
210#  which throws away all packets sent and never receives any.  It is
211#  included for testing purposes.
212#  The `tun' pseudo-device implements the User Process PPP (iijppp)
213#
214pseudo-device	ether			#Generic Ethernet
215pseudo-device	fddi			#Generic FDDI
216pseudo-device	sppp			#Generic Synchronous PPP
217pseudo-device	loop			#Network loopback device
218pseudo-device	sl	2		#Serial Line IP
219pseudo-device	ppp	2		#Point-to-point protocol
220pseudo-device	bpfilter	4	#Berkeley packet filter
221pseudo-device	disc			#Discard device
222pseudo-device	tun	1		#Tunnel driver(user process ppp)
223
224#
225# Internet family options:
226#
227# TCP_COMPAT_42 causes the TCP code to emulate certain bugs present in
228# 4.2BSD.  This option should not be used unless you have a 4.2BSD
229# machine and TCP connections fail.
230#
231# MROUTING enables the kernel multicast packet forwarder, which works
232# with mrouted(8).
233#
234# IPFIREWALL enables support for IP firewall construction, in
235# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
236# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
237# limits the number of times a matching entry can be logged.
238#
239# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''
240#
241# TCPDEBUG is undocumented.
242#
243options		"TCP_COMPAT_42"		#emulate 4.2BSD TCP bugs
244options		MROUTING		# Multicast routing
245options         IPFIREWALL              #firewall
246options         IPFIREWALL_VERBOSE      #print information about
247					# dropped packets
248options		"IPFIREWALL_VERBOSE_LIMIT=100" #limit verbosity
249options		IPDIVERT		#divert sockets
250options		TCPDEBUG
251
252
253#####################################################################
254# FILESYSTEM OPTIONS
255
256#
257# Only the root, /usr, and /tmp filesystems need be statically
258# compiled; everything else will be automatically loaded at mount
259# time.  (Exception: the UFS family---FFS, MFS, and LFS---cannot
260# currently be demand-loaded.)  Some people still prefer to statically
261# compile other filesystems as well.
262#
263# NB: The LFS, PORTAL, and UNION filesystems are known to be buggy,
264# and WILL panic your system if you attempt to do anything with them.
265# They are included here as an incentive for some enterprising soul to
266# sit down and fix them.
267#
268# Note: 4.4BSD NQNFS lease checking has relatively high cost for
269# _local_ I/O as well as remote I/O. Don't use it unless you will
270# using NQNFS.
271#
272
273# One of these is mandatory:
274options		FFS			#Fast filesystem
275options		NFS			#Network File System
276
277# The rest are optional:
278options		NQNFS			#Enable NQNFS lease checking
279# options	NFS_NOSERVER		#Disable the NFS-server code.
280options		"CD9660"		#ISO 9660 filesystem
281options		FDESC			#File descriptor filesystem
282options		KERNFS			#Kernel filesystem
283options		LFS			#Log filesystem
284options		MFS			#Memory File System
285options		MSDOSFS			#MS DOS File System
286options		NULLFS			#NULL filesystem
287options		PORTAL			#Portal filesystem
288options		PROCFS			#Process filesystem
289options		UMAPFS			#UID map filesystem
290options		UNION			#Union filesystem
291# This DEVFS is experimental but seems to work
292options		DEVFS			#devices filesystem
293
294# Make space in the kernel for a MFS root filesystem.  Define to the number
295# of kilobytes to reserve for the filesystem.
296options		MFS_ROOT=10
297# Allow the MFS_ROOT code to load the MFS image from floppy if it is missing.
298options		MFS_AUTOLOAD
299
300# Allow this many swap-devices.
301options		NSWAPDEV=20
302
303# Disk quotas are supported when this option is enabled.  If you
304# change the value of this option, you must do a `make clean' in your
305# kernel compile directory in order to get a working kernel.
306#
307options		QUOTA			#enable disk quotas
308
309# Add more checking code to various filesystems
310#options		NULLFS_DIAGNOSTIC
311#options		KERNFS_DIAGNOSTIC
312#options		UMAPFS_DIAGNOSTIC
313#options		UNION_DIAGNOSTIC
314
315# Add some error checking code to the null_bypass routine
316# in nthe NULL filesystem
317#options		SAFETY
318
319
320#####################################################################
321# SCSI DEVICES
322
323# SCSI DEVICE CONFIGURATION
324
325# The SCSI subsystem consists of the `base' SCSI code, a number of
326# high-level SCSI device `type' drivers, and the low-level host-adapter
327# device drivers.  The host adapters are listed in the ISA and PCI
328# device configuration sections below.
329#
330# Beginning with FreeBSD 2.0.5 you can wire down your SCSI devices so
331# that a given bus, target, and LUN always come on line as the same
332# device unit.  In earlier versions the unit numbers were assigned
333# in the order that the devices were probed on the SCSI bus.  This
334# means that if you removed a disk drive, you may have had to rewrite
335# your /etc/fstab file, and also that you had to be careful when adding
336# a new disk as it may have been probed earlier and moved your device
337# configuration around.
338
339# This old behavior is maintained as the default behavior.  The unit
340# assignment begins with the first non-wired down unit for a device
341# type.  For example, if you wire a disk as "sd3" then the first
342# non-wired disk will be assigned sd4.
343
344# The syntax for wiring down devices is:
345
346# controller	scbus0 at ahc0		# Single bus device
347# controller	scbus1 at ahc1 bus 0	# Single bus device
348# controller	scbus3 at ahc2 bus 0	# Twin bus device
349# controller	scbus2 at ahc2 bus 1	# Twin bus device
350# disk 		sd0 at scbus0 target 0 unit 0
351# disk		sd1 at scbus3 target 1
352# disk		sd2 at scbus2 target 3
353# tape		st1 at scbus1 target 6
354# device	cd0 at scbus?
355
356# "units" (SCSI logical unit number) that are not specified are
357# treated as if specified as LUN 0.
358
359# All SCSI devices allocate as many units as are required.
360
361# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
362# configuration and doesn't have to be explicitly configured.
363
364controller	scbus0	#base SCSI code
365device		ch0	#SCSI media changers
366device		sd0	#SCSI disks
367device		st0	#SCSI tapes
368device		cd0	#SCSI CD-ROMs
369device		od0	#SCSI optical disk
370
371# The previous devices (ch, sd, st, cd) are recognized by config.
372# config doesn't (and shouldn't) know about these newer ones,
373# so we have to specify that they are on a SCSI bus with the "at scbus?"
374# clause.
375
376device worm0 at scbus?	# SCSI worm
377device pt0 at scbus?	# SCSI processor type
378device sctarg0 at scbus? # SCSI target
379
380# SCSI OPTIONS:
381
382# SCSIDEBUG: When defined enables debugging macros
383# NO_SCSI_SENSE: When defined disables sense descriptions (about 4k)
384# SCSI_REPORT_GEOMETRY: Always report disk geometry at boot up instead
385#                       of only when booting verbosely.
386options		SCSIDEBUG
387#options	NO_SCSI_SENSE
388options		SCSI_REPORT_GEOMETRY
389
390# Options for the `od' optical disk driver:
391#
392# If drive returns sense key as 0x02 with vendor specific additional
393# sense code (ASC) and additional sense code qualifier (ASCQ), or
394# illegal ASC and ASCQ. This cause an error (NOT READY) and retrying.
395# To suppress this, use the following option.
396#
397options		OD_BOGUS_NOT_READY
398#
399# For an automatic spindown, try this.  Again, preferrably as an
400# option in your config file.
401# WARNING!  Use at your own risk.  Joerg's ancient SONY SMO drive
402# groks it fine, while Shunsuke's Fujitsu chokes on it and times
403# out.
404#
405options		OD_AUTO_TURNOFF
406
407
408
409#####################################################################
410# MISCELLANEOUS DEVICES AND OPTIONS
411
412#
413# Of these, only the `log' device is truly mandatory.  The `pty'
414# device usually turns out to be ``effectively mandatory'', as it is
415# required for `telnetd', `rlogind', `screen', `emacs', and `xterm',
416# among others.  The `isdn', `ii', `ity', `itel', and `ispy' devices
417# are all required when ISDN support is used.  If you wish to run certain
418# system utilities which are compressed by default (like /stand/sysinstall)
419# then `gzip' becomes mandatory too.
420#
421pseudo-device	pty	16	#Pseudo ttys - can go as high as 256
422pseudo-device	speaker		#Play IBM BASIC-style noises out your speaker
423pseudo-device	log		#Kernel syslog interface (/dev/klog)
424pseudo-device	gzip		#Exec gzipped a.out's
425pseudo-device	vn		#Vnode driver (turns a file into a device)
426pseudo-device	snp	3	#Snoop device - to look at pty/vty/etc..
427pseudo-device	ccd	4	#Concatenated disk driver
428
429# These are non-optional for ISDN
430pseudo-device   isdn
431pseudo-device   ii      4
432pseudo-device   ity     4
433pseudo-device   itel    2
434pseudo-device   ispy    1
435
436# These are only for watching for bitrot in old tty code.
437# broken
438#pseudo-device	tb
439
440# These are only for watching for bitrot in old SCSI code.
441pseudo-device	su		#scsi user
442pseudo-device	ssc		#super scsi
443
444
445#####################################################################
446# HARDWARE DEVICE CONFIGURATION
447
448# ISA and EISA devices:
449# Currently there is no separate support for EISA.  There should be.
450# Micro Channel is not supported at all.
451
452#
453# Mandatory ISA devices: isa, sc or vt, npx
454#
455controller	isa0
456
457#
458# Options for `isa':
459#
460# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
461# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
462# This option breaks suspend/resume on some portables.
463#
464# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
465# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
466# Automatic EOI is documented not to work for for the slave with the
467# original i8259A, but it works for some clones and some integrated
468# versions.
469#
470# BOUNCE_BUFFERS provides support for ISA DMA on machines with more
471# than 16 megabytes of memory.  It doesn't hurt on other machines.
472# Some broken EISA and VLB hardware may need this, too.
473#
474# MAXMEM specifies the amount of RAM on the machine; if this is not
475# specified, FreeBSD will read the amount of memory from the CMOS RAM,
476# so the amount of memory will be limited to 64MB or 16MB depending on
477# the BIOS.  The amount is in kilobytes, so for a machine with 128MB of
478# RAM, it would be 131072 (128 * 1024).
479#
480# TUNE_1542 enables the automatic ISA bus speed selection for the
481# Adaptec 1542 boards. Does not work for all boards, use it with caution.
482#
483# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
484# reset the CPU for reboot.  This is needed on some systems with broken
485# keyboard controllers.
486#
487# PAS_JOYSTICK_ENABLE enables the gameport on the ProAudio Spectrum
488
489options		"AUTO_EOI_1"
490#options	"AUTO_EOI_2"
491options		BOUNCE_BUFFERS
492options		"MAXMEM=(128*1024)"
493#options        "TUNE_1542"
494#options	BROKEN_KEYBOARD_RESET
495#options	PAS_JOYSTICK_ENABLE
496
497# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
498device		vt0	at isa? port "IO_KBD" tty irq 1 vector pcrint
499options		PCVT_FREEBSD=210	# pcvt running on FreeBSD >= 2.0.5
500options		XSERVER			# include code for XFree86
501options		FAT_CURSOR		# start with block cursor
502# This PCVT option is for keyboards such as those used on IBM ThinkPad laptops
503options		PCVT_SCANSET=2 		# IBM keyboards are non-std
504
505# The syscons console driver (sco color console compatible) - default.
506device		sc0	at isa? port "IO_KBD" tty irq 1 vector scintr
507options		SC_KBD_PROBE_WORKS	# keyboard probe should determine
508					# if syscons is available
509options		MAXCONS=16		# number of virtual consoles
510options		SLOW_VGA		# do byte-wide i/o's to TS and GDC regs
511options		XT_KEYBOARD		# extra initialization for XT keyboard
512
513#
514# This device is mandatory.
515#
516# The Numeric Processing eXtension is used to either enable the
517# coprocessor or enable math emulation.  If your machine doesn't contain
518# a math co-processor, you must *also* add the option "MATH_EMULATE".
519# THIS IS NOT AN OPTIONAL ENTRY, DO NOT REMOVE IT
520#
521device		npx0	at isa? port "IO_NPX" irq 13 vector npxintr
522
523#
524# Optional ISA and EISA devices:
525#
526
527#
528# SCSI host adapters: `aha', `aic', `bt', `nca'
529#
530# aha: Adaptec 154x
531# ahc: Adaptec 274x/284x/294x
532# aic: Adaptec 152x and sound cards using the Adaptec AIC-6360 (slow!)
533# bt: Most Buslogic controllers
534# nca: ProAudioSpectrum cards using the NCR 5380 or Trantor T130
535# uha: UltraStore 14F and 34F
536# sea: Seagate ST01/02 8 bit controller (slow!)
537# wds: Western Digital WD7000 controller (no scatter/gather!).
538#
539# Note that the order is important in order for Buslogic cards to be
540# probed correctly.
541#
542
543controller	bt0	at isa? port "IO_BT0" bio irq ? vector bt_isa_intr
544controller	aha0	at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
545controller	uha0	at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
546
547controller      aic0    at isa? port 0x340 bio irq 11 vector aicintr
548controller	nca0	at isa? port 0x1f88 bio irq 10 vector ncaintr
549controller	nca1	at isa? port 0x1f84
550controller	nca2	at isa? port 0x1f8c
551controller	nca3	at isa? port 0x1e88
552controller	nca4	at isa? port 0x350 bio irq 5 vector ncaintr
553
554controller	sea0	at isa? bio irq 5 iomem 0xdc000 iosiz 0x2000 vector seaintr
555controller	wds0	at isa? port 0x350 bio irq 15 drq 6 vector wdsintr
556
557#
558# ST-506, ESDI, and IDE hard disks: `wdc' and `wd'
559#
560# NB: ``Enhanced IDE'' is NOT supported at this time.
561#
562# The flags fields are used to enable the multi-sector I/O and
563# the 32BIT I/O modes.  The flags may be used in either the controller
564# definition or in the individual disk definitions.  The controller
565# definition is supported for the boot configuration stuff.
566#
567# Each drive has a 16 bit flags value defined:
568#	The low 8 bits are the maximum value for the multi-sector I/O,
569#	where 0xff defaults to the maximum that the drive can handle.
570#	The high bit of the 16 bit flags (0x8000) allows probing for
571#	32 bit transfers.
572#
573# The flags field for the drives can be specified in the controller
574# specification with the low 16 bits for drive 0, and the high 16 bits
575# for drive 1.
576# e.g.:
577#controller	wdc0	at isa? port "IO_WD1" bio irq 14 flags 0x00ff8004 vector wdintr
578#
579# specifies that drive 0 will be allowed to probe for 32 bit transfers and
580# a maximum multi-sector transfer of 4 sectors, and drive 1 will not be
581# allowed to probe for 32 bit transfers, but will allow multi-sector
582# transfers up to the maximum that the drive supports.
583#
584
585#
586controller	wdc0	at isa? port "IO_WD1" bio irq 14 vector wdintr
587disk		wd0	at wdc0 drive 0
588disk		wd1	at wdc0 drive 1
589controller	wdc1	at isa? port "IO_WD2" bio irq 15 vector wdintr
590disk		wd2	at wdc1 drive 0
591disk		wd3	at wdc1 drive 1
592
593#
594# Options for `wdc':
595#
596# ATAPI enables the support for ATAPI-compatible IDE devices
597#
598options         ATAPI   #Enable ATAPI support for IDE bus
599options		ATAPI_STATIC	#Don't do it as an LKM
600
601# IDE CD-ROM driver - requires wdc controller and ATAPI option
602device          wcd0
603
604#
605# Standard floppy disk controllers and floppy tapes: `fdc', `fd', and `ft'
606#
607controller	fdc0	at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
608#
609# Activate this line instead of the fdc0 line above if you happen to
610# have an Insight floppy tape.  Probing them proved to be dangerous
611# for people with floppy disks only, so it's "hidden" behind a flag:
612#controller fdc0 at isa? port "IO_FD1" bio flags 1 irq 6 drq 2 vector fdintr
613
614disk		fd0	at fdc0 drive 0
615disk		fd1	at fdc0 drive 1
616tape		ft0	at fdc0 drive 2
617
618
619#
620# Options for `fd':
621#
622# FDSEEKWAIT selects a non-default head-settle time (i.e., the time to
623# wait after a seek is performed).  The default value (1/32 s) is
624# usually sufficient.  The units are inverse seconds, so a value of 16
625# here means to wait 1/16th of a second; you should choose a power of
626# two.
627# XXX: this seems to be missing!
628options	FDSEEKWAIT=16
629
630#
631# Other standard PC hardware: `lpt', `mse', `psm', `sio', etc.
632#
633# lpt: printer port
634#	lpt specials:
635#		port can be specified as ?, this will cause the driver to scan
636#		the BIOS port list;
637#		the irq and vector clauses may be omitted, this
638#		will force the port into polling mode.
639# mse: Logitech and ATI InPort bus mouse ports
640# psm: PS/2 mouse port [note: conflicts with sc0/vt0, thus "conflicts" keywd]
641# sio: serial ports (see sio(4))
642
643device		lpt0	at isa? port? tty irq 7 vector lptintr
644device		lpt1	at isa? port "IO_LPT3" tty irq 5 vector lptintr
645device		mse0	at isa? port 0x23c tty irq 5 vector mseintr
646device		psm0	at isa? port "IO_KBD" conflicts tty irq 12 vector psmintr
647# Options for psm:
648options		PSM_NO_RESET		#don't reset mouse hardware (some laptops)
649
650device		sio0	at isa? port "IO_COM1" tty irq 4 vector siointr
651
652# Options for sio:
653options		COMCONSOLE		#prefer serial console to video console
654options		COM_ESP			#code for Hayes ESP
655options		COM_MULTIPORT		#code for some cards with shared IRQs
656options		DSI_SOFT_MODEM		#code for DSI Softmodems
657options		BREAK_TO_DEBUGGER	#a BREAK on a comconsole goes to
658					#DDB, if available.
659
660#
661# Network interfaces: `cx', `ed', `el', `ep', `ie', `is', `le', `lnc'
662#
663# ar: Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver (requires sppp)
664# cx: Cronyx/Sigma multiport sync/async (with Cisco or PPP framing)
665# ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
666# el: 3Com 3C501 (slow!)
667# ep: 3Com 3C509 (buggy)
668# fe: Fujitsu MB86960A/MB86965A Ethernet
669# fea: DEC DEFEA EISA FDDI adapter
670# ie: AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210
671# le: Digital Equipment EtherWorks 2 and EtherWorks 3 (DEPCA, DE100,
672#     DE101, DE200, DE201, DE202, DE203, DE204, DE205, DE422)
673# lnc: Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL)
674# sr: RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
675# ze: IBM/National Semiconductor PCMCIA ethernet controller.
676# zp: 3Com PCMCIA Etherlink III (It does not require shared memory for
677#     send/receive operation, but it needs 'iomem' to read/write the
678#     attribute memory)
679#
680
681device ar0 at isa? port 0x300 net irq 10 iomem 0xd0000 vector arintr
682device cx0 at isa? port 0x240 net irq 15 drq 7 vector cxintr
683device ed0 at isa? port 0x280 net irq 5 iomem 0xd8000 vector edintr
684device eg0 at isa? port 0x310 net irq 5 vector egintr
685device el0 at isa? port 0x300 net irq 9 vector elintr
686device ep0 at isa? port 0x300 net irq 10 vector epintr
687device fe0 at isa? port 0x300 net irq ? vector feintr
688device fea0 at isa? net irq ? vector feaintr
689device ie0 at isa? port 0x360 net irq 7 iomem 0xd0000 vector ieintr
690device ix0 at isa? port 0x300 net irq 10 iomem 0xd0000 iosiz 32768 vector ixintr
691device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
692device lnc0 at isa? port 0x300 net irq 10 drq 0 vector lncintr
693device sr0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector srintr
694device ze0 at isa? port 0x300 net irq 5 iomem 0xd8000 vector zeintr
695device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr
696
697
698#
699# ISDN drivers - `isdn'.
700#
701# Uncomment one (and only one) of the following two drivers for the appropriate
702# ISDN device you have.  For more information on what's considered appropriate
703# for your given set of circumstances, please read
704# /usr/src/gnu/usr.sbin/isdn/docs/INSTALL.  It's a bit sparse at present, but
705# it's the best we have right now.  The snic driver is also disabled at present,
706# waiting for someone to upgrade the driver to 2.0 (it's in /sys/gnu/scsi/).
707#
708device nic0 at isa? port "IO_COM3" iomem 0xe0000 tty irq 9 vector nicintr
709device nnic0 at isa? port 0x150 iomem 0xe0000 tty irq 12 vector nnicintr
710
711#
712# Audio drivers: `snd', `sb', `pas', `gus', `pca'
713#
714# snd: Voxware sound support code
715# sb: SoundBlaster PCM - SoundBlaster, SB Pro, SB16, ProAudioSpectrum
716# sbxvi: SoundBlaster 16
717# sbmidi: SoundBlaster 16 MIDI interface
718# pas: ProAudioSpectrum PCM and MIDI
719# gus: Gravis Ultrasound - Ultrasound, Ultrasound 16, Ultrasound MAX
720# gusxvi: Gravis Ultrasound 16-bit PCM	(do not use)
721# mss: Microsoft Sound System
722# opl: Yamaha OPL-2 and OPL-3 FM - SB, SB Pro, SB 16, ProAudioSpectrum
723# uart: stand-alone 6850 UART for MIDI
724# mpu: Roland MPU-401 stand-alone card
725#
726# Beware!  The addresses specified below are also hard-coded in
727# i386/isa/sound/sound_config.h.  If you change the values here, you
728# must also change the values in the include file.
729#
730# pca: PCM audio through your PC speaker
731#
732# If you don't have a lpt0 device at IRQ 7, you can remove the
733# ``conflicts'' specification in the appropriate device entries below.
734#
735# If you have a GUS-MAX card and want to use the CS4231 codec on the
736# card the drqs for the gus max must be 8 bit (1, 2, or 3).
737#
738# If you would like to use the full duplex option on the gus, then define
739# flags to be the ``read dma channel''.
740#
741# options BROKEN_BUS_CLOCK	#PAS-16 isn't working and OPTI chipset
742# options SYMPHONY_PAS		#PAS-16 isn't working and SYMPHONY chipset
743# options EXCLUDE_SBPRO		#PAS-16
744# options SBC_IRQ=5		#PAS-16. Must match irq on sb0 line.
745# PAS16: The order of the pas0/sb0/opl0 is important since the
746#	sb emulation is enabled in the pas-16 attach.
747#
748# The i386/isa/sound/sound.doc has more information.
749
750# Controls all sound devices
751controller	snd0
752device pas0     at isa? port 0x388 irq 10 drq 6 vector pasintr
753device sb0      at isa? port 0x220 irq 7 conflicts drq 1 vector sbintr
754device sbxvi0   at isa? drq 5
755device sbmidi0  at isa? port 0x330
756device gus0 at isa? port 0x220 irq 12 drq 1 vector gusintr
757#device gus0 at isa? port 0x220 irq 12 drq 1 flags 0x3 vector gusintr
758device mss0 at isa? port 0x530 irq 10 drq 1 vector adintr
759# Use this line for PAS avoid port conflict
760device opl0     at isa? port 0x38a
761# For normal case use next line
762# device opl0     at isa? port 0x388
763device mpu0     at isa? port 0x330 irq 6 drq 0
764device uart0 at isa? port 0x330 irq 5 vector "m6850intr"
765
766# More undocumented sound devices with bogus configurations for linting.
767# broken
768#device sscape0  at isa? port 0x330 irq 6 drq 0
769#device trix0    at isa? port 0x330 irq 6 drq 0 vector sscapeintr
770
771# Not controlled by `snd'
772device pca0 at isa? port IO_TIMER1 tty
773
774#
775# Miscellaneous hardware:
776#
777# mcd: Mitsumi CD-ROM
778# scd: Sony CD-ROM
779# matcd: Matsushita/Panasonic CD-ROM
780# wt: Wangtek and Archive QIC-02/QIC-36 tape drives
781# ctx: Cortex-I frame grabber
782# apm: Laptop Advanced Power Management (experimental)
783# spigot: The Creative Labs Video Spigot video-acquisition board
784# meteor: Matrox Meteor video capture board
785# cy: Cyclades serial driver
786# dgb: Digiboard PC/Xi and PC/Xe series driver (ALPHA QUALITY!)
787# gp:  National Instruments AT-GPIB and AT-GPIB/TNT board
788# asc: GI1904-based hand scanners, e.g. the Trust Amiscan Grey
789# gsc: Genius GS-4500 hand scanner.
790# joy: joystick
791# labpc: National Instrument's Lab-PC and Lab-PC+
792# rc: RISCom/8 multiport card
793# tw: TW-523 power line interface for use with X-10 home control products
794# si: Specialix SI/XIO 4-32 port terminal multiplexor
795# stl: Stallion EasyIO and EasyConnection 8/32 (cd1400 based)
796# stli: Stallion EasyConnection 8/64, ONboard, Brumby (intelligent)
797
798#
799# Notes on APM
800#  Some APM implementations will not work with the `statistics clock'
801#  enabled, so it's disabled by default if the APM driver is enabled.
802#  However, this is not true for all laptops.  Try removing the option
803#  APM_BROKEN_STATCLOCK and see if suspend/resume work
804#
805
806options	APM_IDLE_CPU	# Tell APM to idle rather than halt'ing the cpu
807
808#
809# Notes on the spigot:
810#  The video spigot is at 0xad6.  This port address can not be changed.
811#  The irq values may only be 10, 11, or 15
812#  I/O memory is an 8kb region.  Possible values are:
813#    0a0000, 0a2000, ..., 0fffff, f00000, f02000, ..., ffffff
814#    The start address must be on an even boundary.
815#  Add the following option if you want to allow non-root users to be able
816#  to access the spigot.  This option is not secure because it allows users
817#  direct access to the I/O page.
818#  	options SPIGOT_UNSECURE
819#
820
821# Notes on the Digiboard driver:
822#
823# The following flag values have special meanings:
824#	0x01 - alternate layout of pins
825#	0x02 - use the windowed PC/Xe in 64K mode
826
827# Notes on the Specialix SI/XIO driver:
828#  **This is NOT a Specialix supported Driver!**
829#  The host card is memory, not IO mapped.
830#  The Rev 1 host cards use a 64K chunk, on a 32K boundary.
831#  The Rev 2 host cards use a 32K chunk, on a 32K boundary.
832#  The cards can use an IRQ of 11, 12 or 15.
833
834# Notes on the Stallion stl and stli drivers:
835#  See src/i386/isa/README.stl for complete instructions.
836#  This is version 0.0.5alpha, unsupported by Stallion.
837#  The stl driver has a secondary IO port hard coded at 0x280.  You need
838#     to change src/i386/isa/stallion.c if you reconfigure this on the boards.
839#  The "flags" and "iosiz" settings on the stli driver depend on the board:
840#	EasyConnection 8/64 ISA:     flags 23         iosiz 0x1000
841#	EasyConnection 8/64 EISA:    flags 24         iosiz 0x10000
842#	EasyConnection 8/64 MCA:     flags 25         iosiz 0x1000
843#	ONboard ISA:                 flags 4          iosiz 0x10000
844#	ONboard EISA:                flags 7          iosiz 0x10000
845#	ONboard MCA:                 flags 3          iosiz 0x10000
846#	Brumby:                      flags 2          iosiz 0x4000
847#	Stallion:                    flags 1          iosiz 0x10000
848
849device		mcd0	at isa? port 0x300 bio irq 10 vector mcdintr
850# for the Sony CDU31/33A CDROM
851device		scd0	at isa? port 0x230 bio
852# for the SoundBlaster 16 multicd - up to 4 devices
853controller      matcd0  at isa? port 0x230 bio
854device		wt0	at isa? port 0x300 bio irq 5 drq 1 vector wtintr
855device		ctx0	at isa? port 0x230 iomem 0xd0000
856device		spigot0 at isa? port 0xad6 irq 15 iomem 0xee000 vector spigintr
857device		qcam0	at isa? port "IO_LPT3" tty
858device		apm0	at isa?
859options		APM_BROKEN_STATCLOCK
860device		gp0	at isa? port 0x2c0 tty
861device		gsc0	at isa? port "IO_GSC1" tty drq 3
862device		joy0	at isa? port "IO_GAME"
863device		cy0	at isa? tty irq 10 iomem 0xd4000 iosiz 0x2000 vector cyintr
864device		dgb0	at isa? port 0x220 iomem 0xfc0000 iosiz ? tty
865device		labpc0	at isa? port 0x260 tty irq 5 vector labpcintr
866device          rc0     at isa? port 0x220 tty irq 12 vector rcintr
867# the port and irq for tw0 are fictitious
868device          tw0     at isa? port 0x380 tty irq 11 vector twintr
869device		si0	at isa? iomem 0xd0000 tty irq 12 vector siintr
870device		asc0	at isa? port IO_ASC1 tty drq 3 irq 10 vector ascintr
871device		bqu0	at isa? port 0x150
872device		stl0	at isa? port 0x2a0 tty irq 10 vector stlintr
873device		stli0	at isa? port 0x2a0 tty iomem 0xcc000 flags 23 iosiz 0x1000
874
875#
876# EISA devices:
877#
878# The EISA bus device is eisa0.  It provides auto-detection and
879# configuration support for all devices on the EISA bus.
880#
881# The `ahb' device provides support for the Adaptec 174X adapter.
882#
883# The `ahc' device provides support for the Adaptec 274X and 284X
884# adapters.  The 284X, although a VLB card responds to EISA probes.
885#
886controller	eisa0
887controller	ahb0
888controller	ahc0
889
890# enable tagged command queueing, which is a major performance win on
891# devices that support it (and controllers with enough SCB's)
892options	AHC_TAGENABLE
893
894# enable SCB paging -- don't use this right now, gibbs says it isn't ready
895# for the real world
896#options	AHC_SCBPAGING_ENABLE
897
898
899#
900# PCI devices:
901#
902# The main PCI bus device is `pci'.  It provides auto-detection and
903# configuration support for all devices on the PCI bus, using either
904# configuration mode defined in the PCI specification.
905#
906# The `ahc' device provides support for the Adaptec 29/3940(U)(W)
907# and motherboard based AIC7870/AIC7880 adapters.
908#
909# The `ncr' device provides support for the NCR 53C810 and 53C825
910# self-contained SCSI host adapters.
911#
912# The `de' device provides support for the Digital Equipment DC21040
913# self-contained Ethernet adapter.
914#
915# The `fxp' device provides support for the Intel EtherExpress Pro/100B
916# PCI Fast Ethernet adapters.
917#
918# The `vx' device provides support for the 3Com 3C590 and 3C595
919# early support
920#
921# The `fpa' device provides support for the Digital DEFPA PCI FDDI
922# adapter. pseudo-device fddi is also needed.
923#
924# The `meteor' device is a PCI video capture board. It can also have the
925# following options:
926#   options METEOR_ALLOC_PAGES=xxx	preallocate kernel pages for data entry
927#	figure (ROWS*COLUMN*BYTES_PER_PIXEL*FRAME+PAGE_SIZE-1)/PAGE_SIZE
928#   options METEOR_DEALLOC_PAGES	remove all allocated pages on close(2)
929#   options METEOR_DEALLOC_ABOVE=xxx	remove all allocated pages above the
930#	specified amount. If this value is below the allocated amount no action
931#	taken
932#   option METEOR_SYSTEM_DEFAULT={METEOR_PAL|METEOR_NTSC|METEOR_SECAM}, used
933#	for initialization of fps routine when a signal is not present.
934#
935controller	pci0
936controller	ahc1
937device		ncr0
938device		de0
939device		fxp0
940device		vx0
941device		fpa0
942device		meteor0
943
944
945#
946# PCCARD/PCMCIA
947#
948# crd: slot controller
949# pcic: slots
950controller	crd0
951controller	pcic0 at crd?
952controller	pcic1 at crd?
953
954#
955# Laptop/Notebook options:
956#
957# See also:
958#  apm under `Miscellaneous hardware'
959#  options		PSM_NO_RESET  for the `psm' driver
960# above.
961
962# For older notebooks that signal a powerfail condition (external
963# power supply dropped, or battery state low) by issuing an NMI:
964
965options		POWERFAIL_NMI	# make it beep instead of panicing
966
967# More undocumented options for linting.
968
969options		DEBUG
970options		"EXT2FS"
971options		"IBCS2"
972options		COMPAT_LINUX
973options		"SCSI_2_DEF"
974options		SHOW_BUSYBUFS	# List buffers that prevent root unmount
975options		SPX_HACK
976