GENERIC_TINY revision 1.61.2.1 1 # $NetBSD: GENERIC_TINY,v 1.61.2.1 2004/06/30 21:10:27 jdc 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
60 options NMBCLUSTERS=256
61
62 #options LKM # loadable kernel modules
63
64 #options USERCONF # userconf(4) support
65 options 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
83 options COMPAT_12 # NetBSD 1.2, 386BSD, and BSDI
84 options COMPAT_13 # NetBSD 1.3, 386BSD, and BSDI
85 options COMPAT_14 # NetBSD 1.4
86 options COMPAT_15 # NetBSD 1.5
87 options COMPAT_16 # NetBSD 1.6
88 options COMPAT_43 # 4.3BSD, 386BSD, and BSDI
89 options 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
98 file-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
102 file-system NFS # Network File System client
103 file-system CD9660 # ISO 9660 + Rock Ridge file system
104 file-system MSDOSFS # MS-DOS file system
105 #file-system FDESC # /dev/fd
106 file-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.
119 options VNODE_OP_NOINLINE # don't inline vnode op calls
120
121 # Networking options
122 #options GATEWAY # packet forwarding
123 options 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.
164 config 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
173 options WSEMUL_VT100 # VT100 / VT220 emulation
174 # different kernel output - see dev/wscons/wsdisplayvar.h
175 options WS_KERNEL_FG=WSCOL_GREEN
176 #options WS_KERNEL_BG=WSCOL_BLACK
177 # compatibility to other console drivers
178 options WSDISPLAY_COMPAT_PCVT # emulate some ioctls
179 options WSDISPLAY_COMPAT_SYSCONS # emulate some ioctls
180 options WSDISPLAY_COMPAT_USL # VT handling
181 options 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
187 options PCDISPLAY_SOFTCURSOR
188
189 #
190 # Device configuration
191 #
192
193 mainbus0 at root
194
195 cpu0 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
221 isa0 at mainbus?
222 #isa0 at pceb?
223 #isa0 at pcib?
224 #isa0 at ichlpcib?
225
226 # PCMCIA bus support
227 pcmcia* at pcic? controller ? socket ?
228
229 # ISA PCMCIA controllers
230 pcic0 at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000
231 pcic1 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
242 npx0 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
250 pckbc0 at isa? # pc keyboard controller
251 pckbd* at pckbc? # PC keyboard
252 #pms* at pckbc? # PS/2 mouse for wsmouse
253 vga0 at isa?
254 #vga* at pci? dev ? function ?
255 pcdisplay0 at isa? # CGA, MDA, EGA, HGA
256 wsdisplay* at vga? console ?
257 wsdisplay* at pcdisplay? console ?
258 wskbd* 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
275 com* at pcmcia? function ? # Modems and serial cards
276
277 # ISA serial interfaces
278 #options COM_HAYESP # adds Hayes ESP serial board support
279 com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports
280 com1 at isa? port 0x2f8 irq 3
281 com2 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
298 lpt0 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
358 wdc* at pcmcia? function ?
359
360 # ISA IDE controllers
361 wdc0 at isa? port 0x1f0 irq 14 # ST506, ESDI, and IDE controllers
362 wdc1 at isa? port 0x170 irq 15
363
364 # ATA (IDE) bus support
365 atabus* at ata?
366
367 # IDE drives
368 wd* at atabus? drive ? # the drives themselves
369
370 # ATAPI bus support
371 atapibus* at atapi?
372
373 # ATAPI devices
374 cd* at atapibus? drive ? # ATAPI CD-ROM drives
375 sd* at atapibus? drive ? # ATAPI disk drives
376
377
378 # Miscellaneous mass storage devices
379
380 # ISA floppy
381 fdc0 at isa? port 0x3f0 irq 6 drq 2 # standard PC floppy controllers
382 #fdc1 at isa? port 0x370 irq ? drq ?
383 fd* 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
420 ep* at pcmcia? function ? # 3Com 3c589 and 3c562 Ethernet
421 mbe* at pcmcia? function ? # MB8696x based Ethernet
422 ne* at pcmcia? function ? # NE2000-compatible Ethernet
423 sm* at pcmcia? function ? # Megahertz Ethernet
424
425 # ISA network interfaces
426 ate0 at isa? port 0x2a0 irq ? # AT1700
427 ec0 at isa? port 0x250 iomem 0xd8000 irq 9 # 3Com 3c503 Ethernet
428 eg0 at isa? port 0x280 irq 9 # 3C505 ethernet cards
429 el0 at isa? port 0x300 irq 9 # 3C501 ethernet cards
430 ep0 at isa? port ? irq ? # 3C509 ethernet cards
431 ef0 at isa? port 0x360 iomem 0xd0000 irq 7 # 3C507
432 ai0 at isa? port 0x360 iomem 0xd0000 irq 7 # StarLAN
433 fmv0 at isa? port 0x2a0 irq ? # FMV-180 series
434 ix0 at isa? port 0x300 irq 10 # EtherExpress/16
435 iy0 at isa? port 0x360 irq ? # EtherExpress PRO 10 ISA
436 lc0 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?
439 nele0 at isa? port 0x320 irq 9 drq 7 # NE2100
440 le* at nele?
441 bicc0 at isa? port 0x320 irq 10 drq 7 # BICC IsoLan
442 le* at bicc?
443 ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards
444 ne1 at isa? port 0x300 irq 10
445 sm0 at isa? port 0x300 irq 10 # SMC91C9x Ethernet
446 we0 at isa? port 0x280 iomem 0xd0000 irq 9 # WD/SMC Ethernet
447 we1 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
487 # USB Ethernet adapters
488 #aue* at uhub? port ? # ADMtek AN986 Pegasus based adapters
489 #cue* at uhub? port ? # CATC USB-EL1201A based adapters
490 #kue* at uhub? port ? # Kawasaki LSI KL5KUSB101B based adapters
491 #uax* at uhub? port ? # ASIX AX88172 based adapters
492 #url* at uhub? port ? # Realtek RTL8150L based adapters
493
494 # Y@P firmware loader
495 #uyap* at uhub? port ?
496
497 # USB Generic driver
498 #ugen* at uhub? port ?
499
500 # Audio Devices
501
502 # PCI audio devices
503 #eap* at pci? dev ? function ? # Ensoniq AudioPCI
504
505 # ISA Plug-and-Play audio devices
506 #guspnp* at isapnp? # Gravis Ultra Sound PnP audio
507 #sb* at isapnp? # SoundBlaster-compatible audio
508 #ym* at isapnp? # Yamaha OPL3-SA3 audio
509
510 # ISA audio devices
511 #aria0 at isa? port 0x290 irq 10 # Aria
512 #gus0 at isa? port 0x220 irq 7 drq 1 drq2 6 # Gravis Ultra Sound
513 #pas0 at isa? port 0x220 irq 7 drq 1 # ProAudio Spectrum
514 #pss0 at isa? port 0x220 irq 7 drq 6 # Personal Sound System
515 #sp0 at pss0 port 0x530 irq 10 drq 0 # sound port driver
516 #sb0 at isa? port 0x220 irq 5 drq 1 drq2 5 # SoundBlaster
517 #wss0 at isa? port 0x530 irq 10 drq 0 drq2 1 # Windows Sound System
518
519 # Audio support
520 #audio* at audiobus?
521
522 # The spkr driver provides a simple tone interface to the built in speaker.
523 #spkr0 at pcppi? # PC speaker
524
525
526 # Joysticks
527
528 # ISA Plug-and-Play joysticks
529 #joy* at isapnp? # Game ports (usually on audio cards)
530
531 # ISA joysticks. Probe is a little strange; add only if you have one.
532 #joy0 at isa? port 0x201
533
534
535 # Miscellaneous Devices
536
537 # Planetconnect Satellite receiver driver.
538 #satlink0 at isa? port 0x300 drq 1
539
540
541 # Pull in optional local configuration
542 include "arch/i386/conf/GENERIC.local"
543
544
545 # Pseudo-Devices
546
547 # disk/mass storage pseudo-devices
548 #pseudo-device ccd 4 # concatenated/striped disk devices
549 #pseudo-device md 1 # memory disk device (ramdisk)
550 pseudo-device vnd 4 # disk-like interface to files
551
552 # network pseudo-devices
553 pseudo-device bpfilter 8 # Berkeley packet filter
554 pseudo-device bridge # simple inter-network bridging
555 pseudo-device ipfilter # IP filter (firewall) and NAT
556 pseudo-device loop # network loopback
557 pseudo-device ppp 2 # Point-to-Point Protocol
558 pseudo-device pppoe # PPP over Ethernet (RFC 2516)
559 #pseudo-device sl 2 # Serial Line IP
560 #pseudo-device strip 2 # Starmode Radio IP (Metricom)
561 pseudo-device tun 2 # network tunneling over tty
562
563 # miscellaneous pseudo-devices
564 pseudo-device pty # pseudo-terminals
565 #pseudo-device tb 1 # tablet line discipline
566 pseudo-device rnd # /dev/random and in-kernel generator
567 #options RND_COM # use "com" randomness as well (BROKEN)
568 pseudo-device clockctl # user control of clock subsystem
569