GENERIC_TINY revision 1.61.2.3 1 # $NetBSD: GENERIC_TINY,v 1.61.2.3 2004/07/15 20:28:05 he Exp $
2 #
3 # GENERIC_TINY -- suitable default for 4M machines
4 # No EISA, PCI, or SCSI.
5 #
6
7 include "arch/i386/conf/std.i386"
8
9 #options INCLUDE_CONFIG_FILE # embed config file in kernel binary
10
11 makeoptions COPTS="-Os"
12
13 maxusers 8 # estimated number of users
14
15 # CPU support. At least one is REQUIRED.
16 options I386_CPU
17 options I486_CPU
18 options I586_CPU
19 options I686_CPU
20
21 # CPU-related options.
22 options 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
26 options 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.
44 options NOREDZONE
45
46 # Standard system options
47
48 options INSECURE # disable kernel security levels - X needs this
49
50 options 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 #options P1003_1B_SEMAPHORE # p1003.1b semaphore support
60
61 options NMBCLUSTERS=256
62
63 #options LKM # loadable kernel modules
64
65 #options USERCONF # userconf(4) support
66 options PIPE_SOCKETPAIR # smaller, but slower pipe(2)
67 #options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel
68
69 # Diagnostic/debugging support options
70 #options DIAGNOSTIC # expensive kernel consistency checks
71 #options DEBUG # expensive debugging checks/support
72 #options KMEMSTATS # kernel memory statistics (vmstat -m)
73 #options DDB # in-kernel debugger
74 #options DDB_ONPANIC=1 # see also sysctl(8): `ddb.onpanic'
75 #options DDB_HISTORY_SIZE=512 # enable history editing in DDB
76 #options KGDB # remote debugger
77 #options KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
78 #makeoptions DEBUG="-g" # compile full symbol table
79
80 # Compatibility options
81 #options COMPAT_NOMID # NetBSD 0.8, 386BSD, and BSDI
82 #options COMPAT_09 # NetBSD 0.9
83 #options COMPAT_10 # NetBSD 1.0
84 #options COMPAT_11 # NetBSD 1.1
85 options COMPAT_12 # NetBSD 1.2, 386BSD, and BSDI
86 options COMPAT_13 # NetBSD 1.3, 386BSD, and BSDI
87 options COMPAT_14 # NetBSD 1.4
88 options COMPAT_15 # NetBSD 1.5
89 options COMPAT_16 # NetBSD 1.6
90 options COMPAT_43 # 4.3BSD, 386BSD, and BSDI
91 options COMPAT_386BSD_MBRPART # recognize old partition ID
92 #options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended.
93
94 #options COMPAT_SVR4 # binary compatibility with SVR4
95 #options COMPAT_IBCS2 # binary compatibility with SCO and ISC
96 #options COMPAT_LINUX # binary compatibility with Linux
97 #options COMPAT_FREEBSD # binary compatibility with FreeBSD
98
99 # File systems
100 file-system FFS # UFS
101 #file-system EXT2FS # second extended file system (linux)
102 #file-system LFS # log-structured file system
103 #file-system MFS # memory file system
104 file-system NFS # Network File System client
105 file-system CD9660 # ISO 9660 + Rock Ridge file system
106 file-system MSDOSFS # MS-DOS file system
107 #file-system FDESC # /dev/fd
108 file-system KERNFS # /kern
109 #file-system NULLFS # loopback file system
110 #file-system PORTAL # portal filesystem (still experimental)
111 #file-system PROCFS # /proc
112 #file-system UMAPFS # NULLFS + uid and gid remapping
113 #file-system UNION # union file system
114
115 # File system options
116 #options QUOTA # UFS quotas
117 #options FFS_EI # FFS Endian Independant support
118 #options NFSSERVER # Network File System server
119 #options EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
120 # immutable) behave as system flags.
121 options VNODE_OP_NOINLINE # don't inline vnode op calls
122
123 # Networking options
124 #options GATEWAY # packet forwarding
125 options INET # IP + ICMP + TCP + UDP
126 #options MROUTING # IP multicast routing
127 #options NS # XNS
128 #options NSIP # XNS tunneling over IP
129 #options ISO,TPIP # OSI
130 #options EON # OSI tunneling over IP
131 #options CCITT,LLC,HDLC # X.25
132 #options NETATALK # AppleTalk networking protocols
133 #options PPP_BSDCOMP # BSD-Compress compression support for PPP
134 #options PPP_DEFLATE # Deflate compression support for PPP
135 #options PPP_FILTER # Active filter support for PPP (requires bpf)
136 #options PFIL_HOOKS # pfil(9) packet filter hooks
137 #options IPFILTER_LOG # ipmon(8) log support
138 #options IPFILTER_DEFAULT_BLOCK # block all packets by default
139 #options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG
140
141 #options ALTQ # Manipulate network interfaces' output queues
142 #options ALTQ_BLUE # Stochastic Fair Blue
143 #options ALTQ_CBQ # Class-Based Queueing
144 #options ALTQ_CDNR # Diffserv Traffic Conditioner
145 #options ALTQ_FIFOQ # First-In First-Out Queue
146 #options ALTQ_FLOWVALVE # RED/flow-valve (red-penalty-box)
147 #options ALTQ_HFSC # Hierarchical Fair Service Curve
148 #options ALTQ_LOCALQ # Local queueing discipline
149 #options ALTQ_PRIQ # Priority Queueing
150 #options ALTQ_RED # Random Early Detection
151 #options ALTQ_RIO # RED with IN/OUT
152 #options ALTQ_WFQ # Weighted Fair Queueing
153
154 # These options enable verbose messages for several subsystems.
155 # Warning, these may compile large string tables into the kernel!
156 #options EISAVERBOSE # verbose EISA device autoconfig messages
157 #options PCIVERBOSE # verbose PCI device autoconfig messages
158 #options PCI_CONFIG_DUMP # verbosely dump PCI config space
159 #options PCMCIAVERBOSE # verbose PCMCIA configuration messages
160 #options SCSIVERBOSE # human readable SCSI error messages
161 #options USBVERBOSE # verbose USB device autoconfig messages
162
163 #options NFS_BOOT_BOOTP,NFS_BOOT_BOOTPARAM
164
165 # Kernel root file system and dump configuration.
166 config netbsd root on ? type ?
167 #config netbsd root on sd0a type ffs
168 #config netbsd root on ? type nfs
169
170 #
171 # wscons options
172 #
173 # builtin terminal emulations
174 #options WSEMUL_SUN # sun terminal emulation
175 options WSEMUL_VT100 # VT100 / VT220 emulation
176 # different kernel output - see dev/wscons/wsdisplayvar.h
177 options WS_KERNEL_FG=WSCOL_GREEN
178 #options WS_KERNEL_BG=WSCOL_BLACK
179 # compatibility to other console drivers
180 options WSDISPLAY_COMPAT_PCVT # emulate some ioctls
181 options WSDISPLAY_COMPAT_SYSCONS # emulate some ioctls
182 options WSDISPLAY_COMPAT_USL # VT handling
183 options WSDISPLAY_COMPAT_RAWKBD # can get raw scancodes
184 # see dev/pckbc/wskbdmap_mfii.c for implemented layouts
185 #options PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
186 # allocate a number of virtual screens at autoconfiguration time
187 #options WSDISPLAY_DEFAULTSCREENS=4
188 # use a large software cursor that doesn't blink
189 options PCDISPLAY_SOFTCURSOR
190
191 #
192 # Device configuration
193 #
194
195 mainbus0 at root
196
197 cpu0 at mainbus0
198
199 #apm0 at mainbus0 # Advanced power management
200
201
202 # Basic Bus Support
203
204 # PCI bus support
205 #pci* at mainbus? bus ?
206 #pci* at pchb? bus ?
207 #pci* at ppb? bus ?
208
209 # PCI bridges
210 #pchb* at pci? dev ? function ? # PCI-Host bridges
211 #pceb* at pci? dev ? function ? # PCI-EISA bridges
212 #pcib* at pci? dev ? function ? # PCI-ISA bridges
213 #ichlpcib* at pci? dev ? function ? # Intel ICH PCI-ISA w/ watchdog support
214 #ppb* at pci? dev ? function ? # PCI-PCI bridges
215 # XXX 'puc's aren't really bridges, but there's no better place for them here
216 #puc* at pci? dev ? function ? # PCI "universal" comm. cards
217
218 # EISA bus support
219 #eisa0 at mainbus?
220 #eisa0 at pceb?
221
222 # ISA bus support
223 isa0 at mainbus?
224 #isa0 at pceb?
225 #isa0 at pcib?
226 #isa0 at ichlpcib?
227
228 # PCMCIA bus support
229 pcmcia* at pcic? controller ? socket ?
230
231 # ISA PCMCIA controllers
232 pcic0 at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000
233 pcic1 at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000
234
235 # ISA Plug-and-Play bus support
236 #isapnp0 at isa?
237
238 # ISA Plug-and-Play PCMCIA controllers
239 #pcic* at isapnp?
240
241 # Coprocessor Support
242
243 # Math Coprocessor support
244 npx0 at isa? port 0xf0 irq 13 # x86 math coprocessor
245
246 # Console Devices
247
248 # ISA console
249 #pc0 at isa? port 0x60 irq 1 # pccons generic PC console driver
250
251 # wscons
252 pckbc0 at isa? # pc keyboard controller
253 pckbd* at pckbc? # PC keyboard
254 #pms* at pckbc? # PS/2 mouse for wsmouse
255 vga0 at isa?
256 #vga* at pci? dev ? function ?
257 pcdisplay0 at isa? # CGA, MDA, EGA, HGA
258 wsdisplay* at vga? console ?
259 wsdisplay* at pcdisplay? console ?
260 wskbd* at pckbd? console ?
261 #wsmouse* at pms? mux 0
262
263
264 #pcppi0 at isa?
265 #sysbeep0 at pcppi?
266
267 # Serial Devices
268
269 # PCI serial interfaces
270 #com* at puc? port ? # 16x50s on "universal" comm boards
271 #cy* at pci? dev ? function ? # Cyclades Cyclom-Y serial boards
272
273 # ISA Plug-and-Play serial interfaces
274 #com* at isapnp? # Modems and serial boards
275
276 # PCMCIA serial interfaces
277 com* at pcmcia? function ? # Modems and serial cards
278
279 # ISA serial interfaces
280 #options COM_HAYESP # adds Hayes ESP serial board support
281 com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports
282 com1 at isa? port 0x2f8 irq 3
283 com2 at isa? port 0x3e8 irq 5
284 #com3 at isa? port 0x2e8 irq 9
285 #ast0 at isa? port 0x1a0 irq 5 # AST 4-port serial cards
286 #com* at ast? slave ?
287 #boca0 at isa? port 0x100 irq 5 # BOCA 8-port serial cards
288 #com* at boca? slave ?
289 #rtfps0 at isa? port 0x1230 irq 10 # RT 4-port serial cards
290 #com* at rtfps? slave ?
291 #cy0 at isa? iomem 0xd4000 irq 12 # Cyclades serial cards
292
293
294 # Parallel Printer Interfaces
295
296 # PCI parallel printer interfaces
297 #lpt* at puc? port ? # || ports on "universal" comm boards
298
299 # ISA parallel printer interfaces
300 lpt0 at isa? port 0x378 irq 7 # standard PC parallel ports
301 #lpt1 at isa? port 0x278
302 #lpt2 at isa? port 0x3bc
303
304
305 # SCSI Controllers and Devices
306
307 # PCI SCSI controllers
308 #ahc* at pci? dev ? function ? # Adaptec [23]94x, aic78x0 SCSI
309 #dpt* at pci? dev ? function ? # DPT SmartCache/SmartRAID
310 #bha* at pci? dev ? function ? # BusLogic 9xx SCSI
311 #isp* at pci? dev ? function ? # Qlogic ISP [12]0x0 SCSI/FibreChannel
312 #siop* at pci? dev ? function ? # NCR 53c8xx SCSI
313 #esiop* at pci? dev ? function ? # NCR 53c875 SCSI and newer
314 #options SIOP_SYMLED # drive the act. LED in software
315
316 # EISA SCSI controllers
317 #ahb* at eisa? slot ? # Adaptec 174[02] SCSI
318 #ahc* at eisa? slot ? # Adaptec 274x, aic7770 SCSI
319 #bha* at eisa? slot ? # BusLogic 7xx SCSI
320 #dpt* at eisa? slot ? # DPT SmartCache/SmartRAID
321 #uha* at eisa? slot ? # UltraStor 24f SCSI
322
323 # PCMCIA SCSI controllers
324 #aic* at pcmcia? function ? # Adaptec APA-1460 SCSI
325
326 # ISA Plug-and-Play SCSI controllers
327 #aic* at isapnp? # Adaptec AHA-1520B
328
329 # ISA SCSI controllers
330 #aha0 at isa? port 0x330 irq ? drq ? # Adaptec 154[02] SCSI
331 #aha1 at isa? port 0x334 irq ? drq ?
332 #ahc0 at isa? port ? irq ? # Adaptec 284x SCSI
333 #aic0 at isa? port 0x340 irq 11 # Adaptec 152[02] SCSI
334 #bha0 at isa? port 0x330 irq ? drq ? # BusLogic [457]4X SCSI
335 #bha1 at isa? port 0x334 irq ? drq ?
336 #sea0 at isa? iomem 0xc8000 irq 5 # Seagate/Future Domain SCSI
337 #uha0 at isa? port 0x330 irq ? drq ? # UltraStor [13]4f SCSI
338 #uha1 at isa? port 0x340 irq ? drq ?
339 #wds0 at isa? port 0x350 irq 15 drq 6 # WD7000 and TMC-7000 controllers
340 #wds1 at isa? port 0x358 irq 11 drq 5
341
342 # SCSI bus support
343 #scsibus* at scsi?
344
345 # SCSI devices
346 #sd* at scsibus? target ? lun ? # SCSI disk drives
347 #st* at scsibus? target ? lun ? # SCSI tape drives
348 #cd* at scsibus? target ? lun ? # SCSI CD-ROM drives
349 #ch* at scsibus? target ? lun ? # SCSI autochangers
350 #ss* at scsibus? target ? lun ? # SCSI scanners
351 #uk* at scsibus? target ? lun ? # SCSI unknown
352
353
354 # IDE and related devices
355
356 # ISA Plug-and-Play IDE controllers
357 #wdc* at isapnp?
358
359 # PCMCIA IDE controllers
360 wdc* at pcmcia? function ?
361
362 # ISA IDE controllers
363 wdc0 at isa? port 0x1f0 irq 14 # ST506, ESDI, and IDE controllers
364 wdc1 at isa? port 0x170 irq 15
365
366 # ATA (IDE) bus support
367 atabus* at ata?
368
369 # IDE drives
370 wd* at atabus? drive ? # the drives themselves
371
372 # ATAPI bus support
373 atapibus* at atapi?
374
375 # ATAPI devices
376 cd* at atapibus? drive ? # ATAPI CD-ROM drives
377 sd* at atapibus? drive ? # ATAPI disk drives
378
379
380 # Miscellaneous mass storage devices
381
382 # ISA floppy
383 fdc0 at isa? port 0x3f0 irq 6 drq 2 # standard PC floppy controllers
384 #fdc1 at isa? port 0x370 irq ? drq ?
385 fd* at fdc? drive ? # the drives themselves
386 # some machines need you to do this instead of fd*
387 #fd0 at fdc0 drive 0
388
389 # ISA CD-ROM devices
390 #mcd0 at isa? port 0x300 irq 10 # Mitsumi CD-ROM drives
391
392 # ISA tape devices
393 # note: the wt driver conflicts unpleasantly with SMC boards at the
394 # same I/O address. The probe reprograms their EEPROMs. Don't
395 # uncomment it unless you are actually using it.
396 #wt0 at isa? port 0x308 irq 5 drq 1 # Archive and Wangtek QIC tape drives
397
398
399 # Network Interfaces
400
401 # PCI network interfaces
402 #en* at pci? dev ? function ? # ENI/Adaptec ATM
403 #ep* at pci? dev ? function ? # 3Com 3c59x/3c90x Ethernet
404 #epic* at pci? dev ? function ? # SMC EPIC/100 Ethernet
405 #esh* at pci? dev ? function ? # Essential HIPPI card
406 #fpa* at pci? dev ? function ? # DEC DEFPA FDDI
407 #fxp* at pci? dev ? function ? # Intel EtherExpress PRO 10+/100B
408 #le* at pci? dev ? function ? # PCnet-PCI Ethernet
409 #ne* at pci? dev ? function ? # NE2000-compatible Ethernet
410 #tl* at pci? dev ? function ? # ThunderLAN-based Ethernet
411 #tlp* at pci? dev ? function ? # DECchip 21x4x and clones
412
413 # EISA network interfaces
414 #ep* at eisa? slot ? # 3Com 3c579 Ethernet
415 #fea* at eisa? slot ? # DEC DEFEA FDDI
416
417 # ISA Plug-and-Play network interfaces
418 #ep* at isapnp? # 3Com 3c509 Ethernet
419 #ne* at isapnp? # NE2000-compatible Ethernet
420
421 # PCMCIA network interfaces
422 ep* at pcmcia? function ? # 3Com 3c589 and 3c562 Ethernet
423 mbe* at pcmcia? function ? # MB8696x based Ethernet
424 ne* at pcmcia? function ? # NE2000-compatible Ethernet
425 sm* at pcmcia? function ? # Megahertz Ethernet
426
427 # ISA network interfaces
428 ate0 at isa? port 0x2a0 irq ? # AT1700
429 ec0 at isa? port 0x250 iomem 0xd8000 irq 9 # 3Com 3c503 Ethernet
430 eg0 at isa? port 0x280 irq 9 # 3C505 ethernet cards
431 el0 at isa? port 0x300 irq 9 # 3C501 ethernet cards
432 ep0 at isa? port ? irq ? # 3C509 ethernet cards
433 ef0 at isa? port 0x360 iomem 0xd0000 irq 7 # 3C507
434 ai0 at isa? port 0x360 iomem 0xd0000 irq 7 # StarLAN
435 fmv0 at isa? port 0x2a0 irq ? # FMV-180 series
436 ix0 at isa? port 0x300 irq 10 # EtherExpress/16
437 iy0 at isa? port 0x360 irq ? # EtherExpress PRO 10 ISA
438 lc0 at isa? port 0x320 iomem ? irq ? # DEC EtherWORKS III (LEMAC)
439 #depca0 at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5 # DEPCA
440 #le* at depca?
441 nele0 at isa? port 0x320 irq 9 drq 7 # NE2100
442 le* at nele?
443 bicc0 at isa? port 0x320 irq 10 drq 7 # BICC IsoLan
444 le* at bicc?
445 ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards
446 ne1 at isa? port 0x300 irq 10
447 sm0 at isa? port 0x300 irq 10 # SMC91C9x Ethernet
448 we0 at isa? port 0x280 iomem 0xd0000 irq 9 # WD/SMC Ethernet
449 we1 at isa? port 0x300 iomem 0xcc000 irq 10
450
451 # MII bus support
452 #mii* at tl?
453
454 # MII PHY network interfaces
455 #tlphy* at mii? dev ? # ThunderLAN PHYs
456 #nsphy* at mii? dev ? # NS and compatible PHYs
457 #ukphy* at mii? phy ? # generic unknown PHYs
458
459
460 # USB Controller and Devices
461
462 # PCI USB controllers
463 #uhci* at pci? # Universal Host Controller (Intel)
464 #ohci* at pci? # Open Host Controller
465
466 # USB bus support
467 #usb* at uhci?
468 #usb* at ohci?
469
470 # USB Hubs
471 #uhub* at usb?
472 #uhub* at uhub? port ?
473
474 # USB Mice
475 #ums* at uhub? port ?
476
477 # USB Keyboards
478 #ukbd* at uhub? port ?
479
480 # USB Generic HID devices
481 #uhid* at uhub? port ?
482
483 # USB Printer
484 #ulpt* at uhub? port ?
485
486 # USB Mass Storage
487 #umass* at uhub? port ? configuration ? interface ?
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
544 include "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)
552 pseudo-device vnd 4 # disk-like interface to files
553
554 # network pseudo-devices
555 pseudo-device bpfilter 8 # Berkeley packet filter
556 pseudo-device bridge # simple inter-network bridging
557 pseudo-device ipfilter # IP filter (firewall) and NAT
558 pseudo-device loop # network loopback
559 pseudo-device ppp 2 # Point-to-Point Protocol
560 pseudo-device pppoe # PPP over Ethernet (RFC 2516)
561 #pseudo-device sl 2 # Serial Line IP
562 #pseudo-device strip 2 # Starmode Radio IP (Metricom)
563 pseudo-device tun 2 # network tunneling over tty
564
565 # miscellaneous pseudo-devices
566 pseudo-device pty # pseudo-terminals
567 #pseudo-device tb 1 # tablet line discipline
568 pseudo-device rnd # /dev/random and in-kernel generator
569 #options RND_COM # use "com" randomness as well (BROKEN)
570 pseudo-device clockctl # user control of clock subsystem
571