GENERIC revision 1.112 1 1.112 perry # $NetBSD: GENERIC,v 1.112 1997/10/19 20:14:21 perry Exp $
2 1.1 mycroft #
3 1.1 mycroft # GENERIC -- everything that's currently supported
4 1.1 mycroft #
5 1.1 mycroft
6 1.61 fvdl include "arch/i386/conf/std.i386"
7 1.14 cgd
8 1.110 thorpej maxusers 32 # estimated number of users
9 1.110 thorpej
10 1.110 thorpej # CPU support. At least one is REQUIRED.
11 1.110 thorpej options I386_CPU
12 1.82 mellon options I486_CPU
13 1.82 mellon options I586_CPU
14 1.110 thorpej options I686_CPU
15 1.110 thorpej
16 1.110 thorpej # CPU-related options.
17 1.82 mellon options MATH_EMULATE # floating point emulation
18 1.102 mycroft #options VM86 # virtual 8086 emulation
19 1.102 mycroft options USER_LDT # user-settable LDT; used by WINE
20 1.112 perry # eliminate delay no-ops in I/O; recommended on all but very old machines
21 1.112 perry #options DUMMY_NOPS
22 1.110 thorpej
23 1.110 thorpej # Misc. i386-specific options
24 1.110 thorpej options XSERVER # X server support in console drivers
25 1.110 thorpej
26 1.110 thorpej # This option allows you to force a serial console at the specified
27 1.110 thorpej # I/O address.
28 1.110 thorpej #options "CONSDEVNAME=\"com\"",CONADDR=0x3f8,CONSPEED=9600
29 1.32 thorpej
30 1.101 mycroft # The following options override the memory sizes passed in from the boot
31 1.101 mycroft # block. Use them *only* if the boot block is unable to determine the correct
32 1.111 perry # values. Note that the BIOS may *correctly* report less than 640k of base
33 1.101 mycroft # memory if the extended BIOS data area is located at the top of base memory
34 1.101 mycroft # (as is the case on most recent systems).
35 1.101 mycroft #options REALBASEMEM=... # size of base memory
36 1.101 mycroft #options REALEXTMEM=... # size of extended memory
37 1.1 mycroft
38 1.110 thorpej # Standard system options
39 1.110 thorpej
40 1.110 thorpej options UCONSOLE # users can use TIOCCONS (for xconsole)
41 1.110 thorpej options INSECURE # disable kernel security levels
42 1.1 mycroft
43 1.82 mellon options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT
44 1.82 mellon #options NTP # NTP phase/frequency locked loop
45 1.1 mycroft
46 1.98 mikel options KTRACE # system call tracing via ktrace(1)
47 1.1 mycroft
48 1.82 mellon options SYSVMSG # System V-like message queues
49 1.82 mellon options SYSVSEM # System V-like semaphores
50 1.82 mellon options SYSVSHM # System V-like memory sharing
51 1.82 mellon #options SHMMAXPGS=1024 # 1024 pages is the default
52 1.82 mellon
53 1.110 thorpej options LKM # loadable kernel modules
54 1.110 thorpej
55 1.110 thorpej # Diagnostic/debugging support options
56 1.110 thorpej options DIAGNOSTIC # cheap kernel consistency checks
57 1.110 thorpej #options DEBUG # expensive debugging checks/support
58 1.110 thorpej options KMEMSTATS # kernel memory statistics (vmstat -m)
59 1.110 thorpej options DDB # in-kernel debugger
60 1.110 thorpej #options KGDB # remote debugger
61 1.110 thorpej #options "KGDB_DEVNAME=\"com\"",KGDBADDR=0x3f8,KGDBRATE=9600
62 1.110 thorpej #makeoptions DEBUG="-g" # compile full symbol table
63 1.110 thorpej
64 1.110 thorpej # Compatbility options
65 1.82 mellon options COMPAT_NOMID # compatibility with 386BSD, BSDI, NetBSD 0.8,
66 1.82 mellon options COMPAT_09 # NetBSD 0.9,
67 1.82 mellon options COMPAT_10 # NetBSD 1.0,
68 1.82 mellon options COMPAT_11 # NetBSD 1.1,
69 1.55 mycroft options COMPAT_12 # NetBSD 1.2,
70 1.82 mellon options COMPAT_43 # and 4.3BSD
71 1.1 mycroft
72 1.82 mellon options COMPAT_SVR4 # binary compatibility with SVR4
73 1.82 mellon options COMPAT_IBCS2 # binary compatibility with SCO and ISC
74 1.82 mellon options COMPAT_LINUX # binary compatibility with Linux
75 1.82 mellon options COMPAT_FREEBSD # binary compatibility with FreeBSD
76 1.59 mycroft
77 1.110 thorpej # Executable format options
78 1.82 mellon options EXEC_ELF32 # 32-bit ELF executables (SVR4, Linux)
79 1.1 mycroft
80 1.110 thorpej # File systems
81 1.71 thorpej file-system FFS # UFS
82 1.80 perry file-system EXT2FS # second extended file system (linux)
83 1.71 thorpej file-system LFS # log-structured file system
84 1.71 thorpej file-system MFS # memory file system
85 1.71 thorpej file-system NFS # Network File System client
86 1.71 thorpej file-system CD9660 # ISO 9660 + Rock Ridge file system
87 1.71 thorpej file-system MSDOSFS # MS-DOS file system
88 1.71 thorpej file-system FDESC # /dev/fd
89 1.71 thorpej file-system KERNFS # /kern
90 1.71 thorpej file-system NULLFS # loopback file system
91 1.71 thorpej file-system PORTAL # portal filesystem (still experimental)
92 1.71 thorpej file-system PROCFS # /proc
93 1.71 thorpej file-system UMAPFS # NULLFS + uid and gid remapping
94 1.71 thorpej file-system UNION # union file system
95 1.71 thorpej
96 1.110 thorpej # File system options
97 1.82 mellon options QUOTA # UFS quotas
98 1.82 mellon options NFSSERVER # Network File System server
99 1.82 mellon options FIFO # FIFOs; RECOMMENDED
100 1.81 veego #options EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
101 1.80 perry # immutable) behave as system flags.
102 1.110 thorpej # Networking options
103 1.82 mellon #options GATEWAY # packet forwarding
104 1.82 mellon options INET # IP + ICMP + TCP + UDP
105 1.82 mellon #options MROUTING # IP multicast routing
106 1.82 mellon options NS # XNS
107 1.82 mellon #options NSIP # XNS tunneling over IP
108 1.82 mellon options ISO,TPIP # OSI
109 1.82 mellon options EON # OSI tunneling over IP
110 1.82 mellon options CCITT,LLC,HDLC # X.25
111 1.110 thorpej options NETATALK # AppleTalk networking protocols
112 1.110 thorpej #options PPP_BSDCOMP # BSD-Compress compression support for PPP
113 1.110 thorpej #options PPP_DEFLATE # Deflate compression support for PPP
114 1.110 thorpej #options PPP_FILTER # Active filter support for PPP (requires bpf)
115 1.82 mellon #options PFIL_HOOKS # pfil(9) packet filter hooks
116 1.1 mycroft
117 1.110 thorpej # Compatibility with 4.2BSD implementation of TCP/IP. Not suggested.
118 1.110 thorpej #options TCP_COMPAT_42
119 1.1 mycroft
120 1.112 perry # These options enable verbose messages for several subsystems.
121 1.112 perry # Warning, these may compile large string tables into the kernel!
122 1.112 perry options EISAVERBOSE # verbose EISA device autoconfig messages
123 1.112 perry options PCIVERBOSE # verbose PCI device autoconfig messages
124 1.110 thorpej #options PCMCIAVERBOSE # verbose PCMCIA configuration messages
125 1.112 perry options SCSIVERBOSE # human readable SCSI error messages
126 1.110 thorpej
127 1.110 thorpej # Kernel root file system and dump configuration.
128 1.110 thorpej config netbsd root on ? type ?
129 1.110 thorpej #config netbsd root on sd0a type ffs
130 1.110 thorpej #config netbsd root on ? type nfs
131 1.110 thorpej
132 1.110 thorpej #
133 1.110 thorpej # Device configuration
134 1.110 thorpej #
135 1.63 thorpej
136 1.31 cgd mainbus0 at root
137 1.31 cgd
138 1.110 thorpej #apm0 at mainbus0 # Advanced power management
139 1.1 mycroft
140 1.112 perry
141 1.112 perry # Basic Bus Support
142 1.112 perry
143 1.110 thorpej # PCI bus support
144 1.110 thorpej pci* at mainbus? bus ?
145 1.110 thorpej pci* at pchb? bus ?
146 1.30 cgd pci* at ppb? bus ?
147 1.110 thorpej
148 1.112 perry # PCI bridges
149 1.63 thorpej pchb* at pci? dev ? function ? # PCI-Host bridges
150 1.63 thorpej pcib* at pci? dev ? function ? # PCI-ISA bridges
151 1.110 thorpej ppb* at pci? dev ? function ? # PCI-PCI bridges
152 1.110 thorpej
153 1.110 thorpej # EISA bus support
154 1.110 thorpej eisa* at mainbus?
155 1.110 thorpej
156 1.110 thorpej # ISA bus support
157 1.110 thorpej isa* at mainbus?
158 1.110 thorpej isa* at pcib?
159 1.63 thorpej
160 1.112 perry # PCMCIA bus support
161 1.112 perry pcmcia* at pcic? controller ? socket ?
162 1.112 perry
163 1.112 perry # ISA PCMCIA controllers
164 1.112 perry pcic0 at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000
165 1.112 perry pcic1 at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000
166 1.112 perry
167 1.112 perry # ISA Plug-and-Play bus support
168 1.112 perry isapnp0 at isa?
169 1.112 perry
170 1.112 perry
171 1.112 perry # Coprocessor Support
172 1.112 perry
173 1.112 perry # Math Coprocessor support
174 1.112 perry npx0 at isa? port 0xf0 irq 13 # x86 math coprocessor
175 1.112 perry
176 1.112 perry
177 1.112 perry # Console Devices
178 1.112 perry
179 1.112 perry # ISA console. You can only configure one of these!
180 1.112 perry pc0 at isa? port 0x60 irq 1 # pccons generic PC console driver
181 1.112 perry #vt0 at isa? port 0x60 irq 1 # PCVT console driver
182 1.110 thorpej
183 1.110 thorpej
184 1.112 perry # Serial Devices
185 1.63 thorpej
186 1.112 perry # PCI serial interfaces
187 1.112 perry cy* at pci? dev ? function ? # Cyclades Cyclom-Y serial boards
188 1.30 cgd
189 1.112 perry # ISA Plug-and-Play serial interfaces
190 1.112 perry com* at isapnp? # Modems and serial boards
191 1.1 mycroft
192 1.112 perry # PCMCIA serial interfaces
193 1.112 perry com* at pcmcia? function ? # Modems and serial cards
194 1.1 mycroft
195 1.110 thorpej # ISA serial interfaces
196 1.89 perry #options COM_HAYESP # adds Hayes ESP serial board support
197 1.112 perry com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports
198 1.2 mycroft com1 at isa? port 0x2f8 irq 3
199 1.2 mycroft com2 at isa? port 0x3e8 irq 5
200 1.2 mycroft #com3 at isa? port 0x2e8 irq 9
201 1.8 mycroft #ast0 at isa? port 0x1a0 irq 5 # AST 4-port serial cards
202 1.34 cgd #com* at ast? slave ?
203 1.8 mycroft #boca0 at isa? port 0x100 irq 5 # BOCA 8-port serial cards
204 1.8 mycroft #com* at boca? slave ?
205 1.1 mycroft #rtfps0 at isa? port 0x1230 irq 10 # RT 4-port serial cards
206 1.1 mycroft #com* at rtfps? slave ?
207 1.58 christos #cy0 at isa? iomem 0xd4000 irq 12 # Cyclades serial cards
208 1.88 mikel
209 1.1 mycroft
210 1.112 perry # Parallel Printer Interfaces
211 1.110 thorpej
212 1.112 perry # ISA parallel printer interfaces
213 1.110 thorpej lpt0 at isa? port 0x378 irq 7 # standard PC parallel ports
214 1.110 thorpej lpt1 at isa? port 0x278
215 1.110 thorpej lpt2 at isa? port 0x3bc
216 1.1 mycroft
217 1.40 perry
218 1.112 perry # SCSI Controllers and Devices
219 1.68 christos
220 1.112 perry # PCI SCSI controllers
221 1.112 perry ahc* at pci? dev ? function ? # Adaptec [23]94x, aic78x0 SCSI
222 1.112 perry bha* at pci? dev ? function ? # BusLogic 9xx SCSI
223 1.112 perry isp* at pci? dev ? function ? # Qlogic ISP [12]0x0 SCSI/FibreChannel
224 1.112 perry ncr* at pci? dev ? function ? # NCR 53c8xx SCSI
225 1.110 thorpej
226 1.112 perry # EISA SCSI controllers
227 1.112 perry ahb* at eisa? slot ? # Adaptec 174[02] SCSI
228 1.112 perry ahc* at eisa? slot ? # Adaptec 274x, aic7770 SCSI
229 1.112 perry bha* at eisa? slot ? # BusLogic 7xx SCSI
230 1.112 perry uha* at eisa? slot ? # UltraStor 24f SCSI
231 1.105 thorpej
232 1.112 perry # PCMCIA SCSI controllers
233 1.110 thorpej aic* at pcmcia? function ? # Adaptec APA-1460 SCSI
234 1.110 thorpej
235 1.112 perry # ISA SCSI controllers
236 1.112 perry aha0 at isa? port 0x330 irq ? drq ? # Adaptec 154[02] SCSI
237 1.112 perry aha1 at isa? port 0x334 irq ? drq ?
238 1.112 perry ahc0 at isa? port ? irq ? # Adaptec 284x SCSI
239 1.112 perry aic0 at isa? port 0x340 irq 11 # Adaptec 152[02] SCSI
240 1.112 perry bha0 at isa? port 0x330 irq ? drq ? # BusLogic [57]4X SCSI
241 1.112 perry bha1 at isa? port 0x334 irq ? drq ?
242 1.112 perry sea0 at isa? iomem 0xc8000 irq 5 # Seagate/Future Domain SCSI
243 1.112 perry uha0 at isa? port 0x330 irq ? drq ? # UltraStor [13]4f SCSI
244 1.112 perry uha1 at isa? port 0x334 irq ? drq ?
245 1.112 perry wds0 at isa? port 0x350 irq 15 drq 6 # WD7000 and TMC-7000 controllers
246 1.112 perry wds1 at isa? port 0x358 irq 11 drq 5
247 1.110 thorpej
248 1.110 thorpej # SCSI bus support
249 1.110 thorpej scsibus* at aha?
250 1.110 thorpej scsibus* at ahb?
251 1.110 thorpej scsibus* at ahc?
252 1.110 thorpej scsibus* at aic?
253 1.110 thorpej scsibus* at bha?
254 1.110 thorpej scsibus* at isp?
255 1.110 thorpej scsibus* at ncr?
256 1.110 thorpej scsibus* at sea?
257 1.110 thorpej scsibus* at uha?
258 1.110 thorpej scsibus* at wds?
259 1.110 thorpej
260 1.110 thorpej # SCSI devices
261 1.110 thorpej sd* at scsibus? target ? lun ? # SCSI disk drives
262 1.110 thorpej st* at scsibus? target ? lun ? # SCSI tape drives
263 1.110 thorpej cd* at scsibus? target ? lun ? # SCSI CD-ROM drives
264 1.110 thorpej ch* at scsibus? target ? lun ? # SCSI autochangers
265 1.110 thorpej ss* at scsibus? target ? lun ? # SCSI scanners
266 1.110 thorpej uk* at scsibus? target ? lun ? # SCSI unknown
267 1.110 thorpej
268 1.112 perry
269 1.112 perry # IDE and Related Devices
270 1.112 perry
271 1.112 perry # ISA IDE controllers
272 1.112 perry wdc0 at isa? port 0x1f0 irq 14 # ST506, ESDI, and IDE controllers
273 1.112 perry wdc1 at isa? port 0x170 irq 15
274 1.112 perry
275 1.112 perry # IDE drives
276 1.112 perry wd* at wdc? drive ? # the drives themsevles
277 1.112 perry
278 1.110 thorpej # ATAPI bus support
279 1.110 thorpej atapibus* at wdc?
280 1.110 thorpej
281 1.110 thorpej # ATAPI devices
282 1.110 thorpej cd* at atapibus? drive ? # ATAPI CD-ROM drives
283 1.110 thorpej
284 1.112 perry
285 1.112 perry # Miscellaneous mass storage devices
286 1.112 perry
287 1.112 perry # ISA floppy
288 1.112 perry fdc0 at isa? port 0x3f0 irq 6 drq 2 # standard PC floppy controllers
289 1.112 perry #fdc1 at isa? port 0x370 irq ? drq ?
290 1.112 perry fd* at fdc? drive ? # the drives themselves
291 1.112 perry # some machines need you to do this instead of fd*
292 1.112 perry #fd0 at fdc0 drive 0
293 1.112 perry
294 1.112 perry # ISA CD-ROM devices
295 1.112 perry #mcd0 at isa? port 0x300 irq 10 # Mitsumi CD-ROM drives
296 1.112 perry
297 1.112 perry # ISA tape devices
298 1.112 perry # note: the wt driver conflicts unpleasantly with ed devices at the
299 1.112 perry # same I/O address. The probe reprograms their eeproms. Don't
300 1.112 perry # uncomment it unless you are actually using it.
301 1.112 perry #wt0 at isa? port 0x300 irq 5 drq 1 # Archive and Wangtek QIC tape drives
302 1.112 perry
303 1.112 perry
304 1.112 perry # Network Interfaces
305 1.112 perry
306 1.112 perry # PCI network interfaces
307 1.112 perry de* at pci? dev ? function ? # DEC 21x4x-based Ethernet
308 1.112 perry en* at pci? dev ? function ? # ENI/Adaptec ATM
309 1.112 perry ep* at pci? dev ? function ? # 3Com 3c59x/3c90x Ethernet
310 1.112 perry fpa* at pci? dev ? function ? # DEC DEFPA FDDI
311 1.112 perry fxp* at pci? dev ? function ? # Intel EtherExpress PRO 10+/100B
312 1.112 perry le* at pci? dev ? function ? # PCnet-PCI Ethernet
313 1.112 perry ne* at pci? dev ? function ? # NE2000-compatible Ethernet
314 1.112 perry tl* at pci? dev ? function ? # Thunderland-based Ethernet
315 1.112 perry
316 1.112 perry # EISA network interfaces
317 1.112 perry ep* at eisa? slot ? # 3Com 3c579 Ethernet
318 1.112 perry fea* at eisa? slot ? # DEC DEFEA FDDI
319 1.112 perry
320 1.112 perry # ISA Plug-and-Play network interfaces
321 1.112 perry ep* at isapnp? # 3Com 3c509 Ethernet
322 1.112 perry ne* at isapnp? # NE2000-compatible Ethernet
323 1.112 perry
324 1.112 perry # PCMCIA network interfaces
325 1.112 perry ep* at pcmcia? function ? # 3Com 3c589 and 3c562 Ethernet
326 1.112 perry ne* at pcmcia? function ? # NE2000-compatible Ethernet
327 1.112 perry sm* at pcmcia? function ? # Megahertz Ethernet
328 1.112 perry
329 1.112 perry # ISA network interfaces
330 1.112 perry ed0 at isa? port 0x280 iomem 0xd0000 irq 9 # WD/SMC and 3C503
331 1.112 perry ed1 at isa? port 0x250 iomem 0xd8000 irq 9 # ethernet cards
332 1.112 perry ed2 at isa? port 0x300 iomem 0xcc000 irq 10
333 1.112 perry #eg0 at isa? ... # 3C505 ethernet cards
334 1.112 perry el0 at isa? port 0x300 irq 9 # 3C501 ethernet cards
335 1.112 perry ep0 at isa? port ? irq ? # 3C509 ethernet cards
336 1.112 perry fe0 at isa? port 0x2a0 irq ? # AT1700
337 1.112 perry ie0 at isa? port 0x360 iomem 0xd0000 irq 7 # StarLAN and 3C507
338 1.112 perry ie1 at isa? port 0x300 irq 10 # EtherExpress
339 1.112 perry iy0 at isa? port ? irq ? # EtherExpress PRO 10 ISA
340 1.112 perry lc0 at isa? port ? iomem ? irq ? # DEC EtherWORKS III (LEMAC)
341 1.112 perry #le0 at isa? port 0x320 irq 10 drq 7 # IsoLan, NE2100, and DEPCA
342 1.112 perry ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards
343 1.112 perry ne1 at isa? port 0x300 irq 10
344 1.112 perry
345 1.110 thorpej # MII bus support
346 1.110 thorpej mii* at tl?
347 1.110 thorpej
348 1.112 perry # MII PHY network interfaces
349 1.110 thorpej tlphy* at mii? dev ? # Thunderland PHYs
350 1.110 thorpej nsphy* at mii? dev ? # NS and compatible PHYs
351 1.84 hpeyerl
352 1.112 perry
353 1.112 perry # Audio Devices
354 1.112 perry
355 1.112 perry # ISA Plug-and-Play audio devices
356 1.112 perry guspnp* at isapnp? # Gravis Ultra Sound PnP audio
357 1.112 perry sb* at isapnp? # SoundBlaster-compatible audio
358 1.112 perry
359 1.112 perry # ISA audio devices
360 1.112 perry gus0 at isa? port 0x220 irq 7 drq 1 drq2 6 # Gravis Ultra Sound
361 1.112 perry pas0 at isa? port 0x220 irq 7 drq 1 # ProAudio Spectrum
362 1.112 perry pss0 at isa? port 0x220 irq 7 drq 6 # Personal Sound System
363 1.112 perry sp0 at pss0 port 0x530 irq 10 drq 0 # sound port driver
364 1.112 perry sb0 at isa? port 0x220 irq 7 drq 1 drq2 5 # SoundBlaster
365 1.112 perry wss0 at isa? port 0x530 irq 10 drq 0 drq2 1 # Windows Sound System
366 1.112 perry
367 1.112 perry # Audio support
368 1.112 perry audio* at gus?
369 1.112 perry audio* at guspnp?
370 1.112 perry audio* at pas?
371 1.112 perry audio* at sb?
372 1.112 perry audio* at sp?
373 1.112 perry audio* at wss?
374 1.112 perry
375 1.112 perry # The spkr driver provides a simple tone interface to the built in speaker.
376 1.112 perry #spkr0 at pckbd? port 0x61 # PC speaker
377 1.112 perry
378 1.112 perry
379 1.112 perry # Mice
380 1.112 perry
381 1.112 perry # ISA busmice
382 1.112 perry lms0 at isa? port 0x23c irq 5 # Logitech bus mouse
383 1.112 perry lms1 at isa? port 0x238 irq 5
384 1.112 perry mms0 at isa? port 0x23c irq 5 # Microsoft InPort mouse
385 1.112 perry mms1 at isa? port 0x238 irq 5
386 1.112 perry #pms0 at pckbd? irq 12 # PS/2 auxiliary port mouse
387 1.112 perry
388 1.112 perry
389 1.112 perry # Joysticks
390 1.112 perry
391 1.112 perry # ISA Plug-and-Play joysticks
392 1.112 perry joy* at isapnp? # Game ports (usually on audio cards)
393 1.112 perry
394 1.112 perry # ISA joysticks. Probe is a little strange; add only if you have one.
395 1.112 perry #joy0 at isa? port 0x201
396 1.112 perry
397 1.112 perry
398 1.112 perry # Miscellaneous Devices
399 1.112 perry
400 1.112 perry # Planetconnect Satellite receiver driver.
401 1.112 perry #satlink0 at isa? port 0x300 drq 1
402 1.112 perry
403 1.112 perry
404 1.110 thorpej # Pull in optional local configuration
405 1.57 mycroft include "arch/i386/conf/GENERIC.local"
406 1.1 mycroft
407 1.112 perry
408 1.112 perry # Pseudo-Devices
409 1.112 perry
410 1.112 perry # disk/mass storage pseudo-devices
411 1.112 perry pseudo-device ccd 4 # concatenated/striped disk devices
412 1.112 perry pseudo-device md 1 # memory disk device (ramdisk)
413 1.112 perry pseudo-device vnd 4 # disk-like interface to files
414 1.112 perry
415 1.112 perry # network pseudo-devices
416 1.110 thorpej pseudo-device bpfilter 8 # Berkeley packet filter
417 1.110 thorpej pseudo-device ipfilter # IP filter (firewall) and NAT
418 1.110 thorpej pseudo-device loop # network loopback
419 1.110 thorpej pseudo-device ppp 2 # Point-to-Point Protocol
420 1.112 perry pseudo-device sl 2 # Serial Line IP
421 1.112 perry pseudo-device strip 2 # Starmode Radio IP (Metricom)
422 1.112 perry pseudo-device tun 2 # network tunneling over tty
423 1.112 perry
424 1.112 perry # miscellaneous pseudo-devices
425 1.110 thorpej pseudo-device pty 64 # pseudo-terminals
426 1.103 explorer #pseudo-device rnd # /dev/random and in-kernel generator
427 1.110 thorpej pseudo-device tb 1 # tablet line discipline
428