GENERIC_TINY revision 1.94
1# $NetBSD: GENERIC_TINY,v 1.94 2005/12/07 12:40:47 tsutsui Exp $ 2# 3# GENERIC_TINY -- suitable default for 4M machines 4# No EISA, PCI, or SCSI. 5# 6 7include "arch/i386/conf/std.i386" 8 9#options INCLUDE_CONFIG_FILE # embed config file in kernel binary 10 11makeoptions COPTS="-Os" 12 13maxusers 8 # estimated number of users 14 15# CPU support. At least one is REQUIRED. 16options I386_CPU 17options I486_CPU 18options I586_CPU 19options I686_CPU 20 21# CPU-related options. 22options 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 26options PIC_DELAY 27 28# This option allows you to force a serial console at the specified 29# I/O address. see console(4) for details. 30#options CONSDEVNAME="\"com\"" 31 32# The following options override the memory sizes passed in from the boot 33# block. Use them *only* if the boot block is unable to determine the correct 34# values. Note that the BIOS may *correctly* report less than 640k of base 35# memory if the extended BIOS data area is located at the top of base memory 36# (as is the case on most recent systems). 37#options REALBASEMEM=... # size of base memory 38#options REALEXTMEM=... # size of extended memory 39 40# Save a physical page per process by not setting a kernel stack red zone. 41options NOREDZONE 42 43# Standard system options 44 45options INSECURE # disable kernel security levels - X needs this 46 47options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT 48#options NTP # NTP phase/frequency locked loop 49 50#options KTRACE # system call tracing via ktrace(1) 51 52#options SYSVMSG # System V-like message queues 53#options SYSVSEM # System V-like semaphores 54#options SYSVSHM # System V-like memory sharing 55#options SHMMAXPGS=2048 # 2048 pages is the default 56#options P1003_1B_SEMAPHORE # p1003.1b semaphore support 57 58options NMBCLUSTERS=256 59 60#options LKM # loadable kernel modules 61 62#options USERCONF # userconf(4) support 63options PIPE_SOCKETPAIR # smaller, but slower pipe(2) 64#options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel 65 66# Diagnostic/debugging support options 67#options DIAGNOSTIC # expensive kernel consistency checks 68#options DEBUG # expensive debugging checks/support 69#options KMEMSTATS # kernel memory statistics (vmstat -m) 70#options DDB # in-kernel debugger 71#options DDB_ONPANIC=1 # see also sysctl(8): `ddb.onpanic' 72#options DDB_HISTORY_SIZE=512 # enable history editing in DDB 73#options KGDB # remote debugger 74#options KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600 75#makeoptions DEBUG="-g" # compile full symbol table 76 77# Compatibility options 78#options COMPAT_NOMID # NetBSD 0.8, 386BSD, and BSDI 79#options COMPAT_09 # NetBSD 0.9 80#options COMPAT_10 # NetBSD 1.0 81#options COMPAT_11 # NetBSD 1.1 82options COMPAT_12 # NetBSD 1.2, 386BSD, and BSDI 83options COMPAT_13 # NetBSD 1.3, 386BSD, and BSDI 84options COMPAT_14 # NetBSD 1.4 85options COMPAT_15 # NetBSD 1.5 86options COMPAT_16 # NetBSD 1.6 87options COMPAT_20 # NetBSD 2.0 88options COMPAT_30 # NetBSD 3.0 compatibility. 89options COMPAT_43 # 4.3BSD, 386BSD, and BSDI 90options COMPAT_386BSD_MBRPART # recognize old partition ID 91#options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended. 92 93#options COMPAT_SVR4 # binary compatibility with SVR4 94#options COMPAT_IBCS2 # binary compatibility with SCO and ISC 95#options COMPAT_LINUX # binary compatibility with Linux 96#options COMPAT_FREEBSD # binary compatibility with FreeBSD 97options COMPAT_BSDPTY # /dev/[pt]ty?? ptys. 98 99# File systems 100file-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 104file-system NFS # Network File System client 105file-system CD9660 # ISO 9660 + Rock Ridge file system 106file-system MSDOSFS # MS-DOS file system 107#file-system FDESC # /dev/fd 108file-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#file-system PTYFS # /dev/pts/N support 115#file-system TMPFS # experimental - Efficient memory file-system 116 117# File system options 118#options QUOTA # UFS quotas 119#options FFS_EI # FFS Endian Independant support 120#options NFSSERVER # Network File System server 121options FFS_NO_SNAPSHOT # No FF snapshot support 122#options EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and 123 # immutable) behave as system flags. 124 125# Networking options 126#options GATEWAY # packet forwarding 127options INET # IP + ICMP + TCP + UDP 128#options MROUTING # IP multicast routing 129#options PIM # Protocol Independent Multicast 130#options NS # XNS 131#options NSIP # XNS tunneling over IP 132#options ISO,TPIP # OSI 133#options EON # OSI tunneling over IP 134#options CCITT,LLC,HDLC # X.25 135#options NETATALK # AppleTalk networking protocols 136#options PPP_BSDCOMP # BSD-Compress compression support for PPP 137#options PPP_DEFLATE # Deflate compression support for PPP 138#options PPP_FILTER # Active filter support for PPP (requires bpf) 139#options PFIL_HOOKS # pfil(9) packet filter hooks 140#options IPFILTER_LOG # ipmon(8) log support 141#options IPFILTER_DEFAULT_BLOCK # block all packets by default 142#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG 143 144#options ALTQ # Manipulate network interfaces' output queues 145#options ALTQ_BLUE # Stochastic Fair Blue 146#options ALTQ_CBQ # Class-Based Queueing 147#options ALTQ_CDNR # Diffserv Traffic Conditioner 148#options ALTQ_FIFOQ # First-In First-Out Queue 149#options ALTQ_FLOWVALVE # RED/flow-valve (red-penalty-box) 150#options ALTQ_HFSC # Hierarchical Fair Service Curve 151#options ALTQ_LOCALQ # Local queueing discipline 152#options ALTQ_PRIQ # Priority Queueing 153#options ALTQ_RED # Random Early Detection 154#options ALTQ_RIO # RED with IN/OUT 155#options ALTQ_WFQ # Weighted Fair Queueing 156 157# These options enable verbose messages for several subsystems. 158# Warning, these may compile large string tables into the kernel! 159#options EISAVERBOSE # verbose EISA device autoconfig messages 160#options PCIVERBOSE # verbose PCI device autoconfig messages 161#options PCI_CONFIG_DUMP # verbosely dump PCI config space 162#options PCMCIAVERBOSE # verbose PCMCIA configuration messages 163#options SCSIVERBOSE # human readable SCSI error messages 164#options USBVERBOSE # verbose USB device autoconfig messages 165 166#options NFS_BOOT_BOOTP,NFS_BOOT_BOOTPARAM 167 168# Kernel root file system and dump configuration. 169config netbsd root on ? type ? 170#config netbsd root on sd0a type ffs 171#config netbsd root on ? type nfs 172 173# 174# wscons options 175# 176# builtin terminal emulations 177#options WSEMUL_SUN # sun terminal emulation 178options WSEMUL_VT100 # VT100 / VT220 emulation 179# customization of console and kernel output - see dev/wscons/wsdisplayvar.h 180#options WSDISPLAY_CUSTOM_OUTPUT # color customization from wsconsctl(8) 181#options WS_DEFAULT_FG=WSCOL_WHITE 182#options WS_DEFAULT_BG=WSCOL_BLACK 183#options WS_DEFAULT_COLATTR="(0)" 184#options WS_DEFAULT_MONOATTR="(0)" 185options WS_KERNEL_FG=WSCOL_GREEN 186#options WS_KERNEL_BG=WSCOL_BLACK 187#options WS_KERNEL_COLATTR="" 188#options WS_KERNEL_MONOATTR="" 189# customization of console border color 190#options WSDISPLAY_CUSTOM_BORDER # border customization from wsconsctl(8) 191#options WSDISPLAY_BORDER_COLOR=WSCOL_BLUE # default color 192# compatibility to other console drivers 193options WSDISPLAY_COMPAT_PCVT # emulate some ioctls 194options WSDISPLAY_COMPAT_SYSCONS # emulate some ioctls 195options WSDISPLAY_COMPAT_USL # VT handling 196options WSDISPLAY_COMPAT_RAWKBD # can get raw scancodes 197# see dev/pckbc/wskbdmap_mfii.c for implemented layouts 198#options PCKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for pckbd driver 199#options UKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for ukbd driver 200# allocate a number of virtual screens at autoconfiguration time 201#options WSDISPLAY_DEFAULTSCREENS=4 202# use a large software cursor that doesn't blink 203options PCDISPLAY_SOFTCURSOR 204 205# 206# Device configuration 207# 208 209mainbus0 at root 210 211cpu0 at mainbus0 212 213#apm0 at mainbus0 # Advanced power management 214 215 216# Basic Bus Support 217 218# PCI bus support 219#pci* at mainbus? bus ? 220#pci* at pchb? bus ? 221#pci* at ppb? bus ? 222 223# PCI bridges 224#pchb* at pci? dev ? function ? # PCI-Host bridges 225#pceb* at pci? dev ? function ? # PCI-EISA bridges 226#pcib* at pci? dev ? function ? # PCI-ISA bridges 227#ichlpcib* at pci? dev ? function ? # Intel ICH PCI-ISA w/ watchdog and 228 # SpeedStep support 229#ppb* at pci? dev ? function ? # PCI-PCI bridges 230# XXX 'puc's aren't really bridges, but there's no better place for them here 231#puc* at pci? dev ? function ? # PCI "universal" comm. cards 232 233# EISA bus support 234#eisa0 at mainbus? 235#eisa0 at pceb? 236 237# ISA bus support 238isa0 at mainbus? 239#isa0 at pceb? 240#isa0 at pcib? 241#isa0 at ichlpcib? 242 243# PCMCIA bus support 244pcmcia* at pcic? controller ? socket ? 245 246# ISA PCMCIA controllers 247pcic0 at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000 248pcic1 at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000 249 250# ISA Plug-and-Play bus support 251#isapnp0 at isa? 252 253# ISA Plug-and-Play PCMCIA controllers 254#pcic* at isapnp? 255 256# Coprocessor Support 257 258# Math Coprocessor support 259npx0 at isa? port 0xf0 irq 13 # x86 math coprocessor 260 261# Console Devices 262 263# ISA console 264#pc0 at isa? port 0x60 irq 1 # pccons generic PC console driver 265 266# wscons 267pckbc0 at isa? # pc keyboard controller 268pckbd* at pckbc? # PC keyboard 269#pms* at pckbc? # PS/2 mouse for wsmouse 270vga0 at isa? 271#vga* at pci? dev ? function ? 272pcdisplay0 at isa? # CGA, MDA, EGA, HGA 273wsdisplay* at vga? console ? 274wsdisplay* at pcdisplay? console ? 275wskbd* at pckbd? console ? 276#wsmouse* at pms? mux 0 277 278 279#attimer0 at isa? 280#pcppi0 at isa? 281#sysbeep0 at pcppi? 282 283# Serial Devices 284 285# PCI serial interfaces 286#com* at puc? port ? # 16x50s on "universal" comm boards 287#cy* at pci? dev ? function ? # Cyclades Cyclom-Y serial boards 288 289# ISA Plug-and-Play serial interfaces 290#com* at isapnp? # Modems and serial boards 291 292# PCMCIA serial interfaces 293com* at pcmcia? function ? # Modems and serial cards 294 295# ISA serial interfaces 296#options COM_HAYESP # adds Hayes ESP serial board support 297com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports 298com1 at isa? port 0x2f8 irq 3 299com2 at isa? port 0x3e8 irq 5 300#com3 at isa? port 0x2e8 irq 9 301#ast0 at isa? port 0x1a0 irq 5 # AST 4-port serial cards 302#com* at ast? slave ? 303#boca0 at isa? port 0x100 irq 5 # BOCA 8-port serial cards 304#com* at boca? slave ? 305#rtfps0 at isa? port 0x1230 irq 10 # RT 4-port serial cards 306#com* at rtfps? slave ? 307#cy0 at isa? iomem 0xd4000 irq 12 # Cyclades serial cards 308 309 310# Parallel Printer Interfaces 311 312# PCI parallel printer interfaces 313#lpt* at puc? port ? # || ports on "universal" comm boards 314 315# ISA parallel printer interfaces 316lpt0 at isa? port 0x378 irq 7 # standard PC parallel ports 317#lpt1 at isa? port 0x278 318#lpt2 at isa? port 0x3bc 319 320 321# SCSI Controllers and Devices 322 323# PCI SCSI controllers 324#ahc* at pci? dev ? function ? # Adaptec [23]94x, aic78x0 SCSI 325#dpt* at pci? dev ? function ? # DPT SmartCache/SmartRAID 326#bha* at pci? dev ? function ? # BusLogic 9xx SCSI 327#isp* at pci? dev ? function ? # Qlogic ISP [12]0x0 SCSI/FibreChannel 328#siop* at pci? dev ? function ? # NCR 53c8xx SCSI 329#esiop* at pci? dev ? function ? # NCR 53c875 SCSI and newer 330#options SIOP_SYMLED # drive the act. LED in software 331 332# EISA SCSI controllers 333#ahb* at eisa? slot ? # Adaptec 174[02] SCSI 334#ahc* at eisa? slot ? # Adaptec 274x, aic7770 SCSI 335#bha* at eisa? slot ? # BusLogic 7xx SCSI 336#dpt* at eisa? slot ? # DPT SmartCache/SmartRAID 337#uha* at eisa? slot ? # UltraStor 24f SCSI 338 339# PCMCIA SCSI controllers 340#aic* at pcmcia? function ? # Adaptec APA-1460 SCSI 341 342# ISA Plug-and-Play SCSI controllers 343#aic* at isapnp? # Adaptec AHA-1520B 344 345# ISA SCSI controllers 346#aha0 at isa? port 0x330 irq ? drq ? # Adaptec 154[02] SCSI 347#aha1 at isa? port 0x334 irq ? drq ? 348#ahc0 at isa? port ? irq ? # Adaptec 284x SCSI 349#aic0 at isa? port 0x340 irq 11 # Adaptec 152[02] SCSI 350#bha0 at isa? port 0x330 irq ? drq ? # BusLogic [457]4X SCSI 351#bha1 at isa? port 0x334 irq ? drq ? 352#sea0 at isa? iomem 0xc8000 irq 5 # Seagate/Future Domain SCSI 353#uha0 at isa? port 0x330 irq ? drq ? # UltraStor [13]4f SCSI 354#uha1 at isa? port 0x340 irq ? drq ? 355#wds0 at isa? port 0x350 irq 15 drq 6 # WD7000 and TMC-7000 controllers 356#wds1 at isa? port 0x358 irq 11 drq 5 357 358# SCSI bus support 359#scsibus* at scsi? 360 361# SCSI devices 362#sd* at scsibus? target ? lun ? # SCSI disk drives 363#st* at scsibus? target ? lun ? # SCSI tape drives 364#cd* at scsibus? target ? lun ? # SCSI CD-ROM drives 365#ch* at scsibus? target ? lun ? # SCSI autochangers 366#ss* at scsibus? target ? lun ? # SCSI scanners 367#uk* at scsibus? target ? lun ? # SCSI unknown 368 369 370# IDE and related devices 371 372# ISA Plug-and-Play IDE controllers 373#wdc* at isapnp? 374 375# PCMCIA IDE controllers 376wdc* at pcmcia? function ? 377 378# ISA IDE controllers 379wdc0 at isa? port 0x1f0 irq 14 # ST506, ESDI, and IDE controllers 380wdc1 at isa? port 0x170 irq 15 381 382# ATA (IDE) bus support 383atabus* at ata? 384 385# IDE drives 386wd* at atabus? drive ? # the drives themselves 387 388# ATAPI bus support 389atapibus* at atapi? 390 391# ATAPI devices 392cd* at atapibus? drive ? # ATAPI CD-ROM drives 393sd* at atapibus? drive ? # ATAPI disk drives 394 395 396# Miscellaneous mass storage devices 397 398# ISA floppy 399fdc0 at isa? port 0x3f0 irq 6 drq 2 # standard PC floppy controllers 400#fdc1 at isa? port 0x370 irq ? drq ? 401fd* at fdc? drive ? # the drives themselves 402# some machines need you to do this instead of fd* 403#fd0 at fdc0 drive 0 404 405# ISA CD-ROM devices 406#mcd0 at isa? port 0x300 irq 10 # Mitsumi CD-ROM drives 407 408# ISA tape devices 409# note: the wt driver conflicts unpleasantly with SMC boards at the 410# same I/O address. The probe reprograms their EEPROMs. Don't 411# uncomment it unless you are actually using it. 412#wt0 at isa? port 0x308 irq 5 drq 1 # Archive and Wangtek QIC tape drives 413 414 415# Network Interfaces 416 417# PCI network interfaces 418#en* at pci? dev ? function ? # ENI/Adaptec ATM 419#ep* at pci? dev ? function ? # 3Com 3c59x/3c90x Ethernet 420#epic* at pci? dev ? function ? # SMC EPIC/100 Ethernet 421#esh* at pci? dev ? function ? # Essential HIPPI card 422#fpa* at pci? dev ? function ? # DEC DEFPA FDDI 423#fxp* at pci? dev ? function ? # Intel EtherExpress PRO 10+/100B 424#le* at pci? dev ? function ? # PCnet-PCI Ethernet 425#ne* at pci? dev ? function ? # NE2000-compatible Ethernet 426#tl* at pci? dev ? function ? # ThunderLAN-based Ethernet 427#tlp* at pci? dev ? function ? # DECchip 21x4x and clones 428 429# EISA network interfaces 430#ep* at eisa? slot ? # 3Com 3c579 Ethernet 431#fea* at eisa? slot ? # DEC DEFEA FDDI 432 433# ISA Plug-and-Play network interfaces 434#ep* at isapnp? # 3Com 3c509 Ethernet 435#ne* at isapnp? # NE2000-compatible Ethernet 436 437# PCMCIA network interfaces 438ep* at pcmcia? function ? # 3Com 3c589 and 3c562 Ethernet 439mbe* at pcmcia? function ? # MB8696x based Ethernet 440ne* at pcmcia? function ? # NE2000-compatible Ethernet 441sm* at pcmcia? function ? # Megahertz Ethernet 442 443# ISA network interfaces 444ate0 at isa? port 0x2a0 irq ? # AT1700 445ec0 at isa? port 0x250 iomem 0xd8000 irq 9 # 3Com 3c503 Ethernet 446eg0 at isa? port 0x280 irq 9 # 3C505 ethernet cards 447el0 at isa? port 0x300 irq 9 # 3C501 ethernet cards 448ep0 at isa? port ? irq ? # 3C509 ethernet cards 449ef0 at isa? port 0x360 iomem 0xd0000 irq 7 # 3C507 450ai0 at isa? port 0x360 iomem 0xd0000 irq 7 # StarLAN 451fmv0 at isa? port 0x2a0 irq ? # FMV-180 series 452ix0 at isa? port 0x300 irq 10 # EtherExpress/16 453iy0 at isa? port 0x360 irq ? # EtherExpress PRO 10 ISA 454lc0 at isa? port 0x320 iomem ? irq ? # DEC EtherWORKS III (LEMAC) 455#depca0 at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5 # DEPCA 456#le* at depca? 457nele0 at isa? port 0x320 irq 9 drq 7 # NE2100 458le* at nele? 459bicc0 at isa? port 0x320 irq 10 drq 7 # BICC IsoLan 460le* at bicc? 461ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards 462ne1 at isa? port 0x300 irq 10 463sm0 at isa? port 0x300 irq 10 # SMC91C9x Ethernet 464we0 at isa? port 0x280 iomem 0xd0000 irq 9 # WD/SMC Ethernet 465we1 at isa? port 0x300 iomem 0xcc000 irq 10 466 467# MII bus support 468#mii* at tl? 469 470# MII PHY network interfaces 471#tlphy* at mii? dev ? # ThunderLAN PHYs 472#nsphy* at mii? dev ? # NS and compatible PHYs 473#ukphy* at mii? phy ? # generic unknown PHYs 474 475 476# USB Controller and Devices 477 478# PCI USB controllers 479#uhci* at pci? # Universal Host Controller (Intel) 480#ohci* at pci? # Open Host Controller 481 482# USB bus support 483#usb* at uhci? 484#usb* at ohci? 485 486# USB Hubs 487#uhub* at usb? 488#uhub* at uhub? port ? 489 490# USB Mice 491#ums* at uhub? port ? 492 493# USB Keyboards 494#ukbd* at uhub? port ? 495 496# USB Generic HID devices 497#uhid* at uhub? port ? 498 499# USB Printer 500#ulpt* at uhub? port ? 501 502# USB Mass Storage 503#umass* at uhub? port ? configuration ? interface ? 504#wd* at umass? 505 506# USB Ethernet adapters 507#aue* at uhub? port ? # ADMtek AN986 Pegasus based adapters 508#axe* at uhub? port ? # ASIX AX88172 based adapters 509#cue* at uhub? port ? # CATC USB-EL1201A based adapters 510#kue* at uhub? port ? # Kawasaki LSI KL5KUSB101B based adapters 511#url* at uhub? port ? # Realtek RTL8150L based adapters 512 513# Y@P firmware loader 514#uyap* at uhub? port ? 515 516# USB Generic driver 517#ugen* at uhub? port ? 518 519# Audio Devices 520 521# PCI audio devices 522#eap* at pci? dev ? function ? # Ensoniq AudioPCI 523 524# ISA Plug-and-Play audio devices 525#guspnp* at isapnp? # Gravis Ultra Sound PnP audio 526#sb* at isapnp? # SoundBlaster-compatible audio 527#ym* at isapnp? # Yamaha OPL3-SA3 audio 528 529# ISA audio devices 530#aria0 at isa? port 0x290 irq 10 # Aria 531#gus0 at isa? port 0x220 irq 7 drq 1 drq2 6 # Gravis Ultra Sound 532#pas0 at isa? port 0x220 irq 7 drq 1 # ProAudio Spectrum 533#sb0 at isa? port 0x220 irq 5 drq 1 drq2 5 # SoundBlaster 534#wss0 at isa? port 0x530 irq 10 drq 0 drq2 1 # Windows Sound System 535 536# Audio support 537#audio* at audiobus? 538 539# The spkr driver provides a simple tone interface to the built in speaker. 540#spkr0 at pcppi? # PC speaker 541 542 543# Joysticks 544 545# ISA Plug-and-Play joysticks 546#joy* at isapnp? # Game ports (usually on audio cards) 547 548# ISA joysticks. Probe is a little strange; add only if you have one. 549#joy0 at isa? port 0x201 550 551 552# Miscellaneous Devices 553 554# Planetconnect Satellite receiver driver. 555#satlink0 at isa? port 0x300 drq 1 556 557 558# Pull in optional local configuration 559include "arch/i386/conf/GENERIC.local" 560 561 562# Pseudo-Devices 563 564# disk/mass storage pseudo-devices 565#pseudo-device ccd 4 # concatenated/striped disk devices 566pseudo-device fss 4 # file system snapshot device 567#pseudo-device md 1 # memory disk device (ramdisk) 568pseudo-device vnd 4 # disk-like interface to files 569#options VND_COMPRESSION # compressed vnd(4) 570 571# network pseudo-devices 572pseudo-device bpfilter 8 # Berkeley packet filter 573pseudo-device bridge # simple inter-network bridging 574pseudo-device ipfilter # IP filter (firewall) and NAT 575pseudo-device loop # network loopback 576pseudo-device ppp 2 # Point-to-Point Protocol 577pseudo-device pppoe # PPP over Ethernet (RFC 2516) 578#pseudo-device sl 2 # Serial Line IP 579#pseudo-device strip 2 # Starmode Radio IP (Metricom) 580pseudo-device tun 2 # network tunneling over tty 581#pseudo-device tap # virtual Ethernet 582 583# miscellaneous pseudo-devices 584pseudo-device pty # pseudo-terminals 585#pseudo-device tb 1 # tablet line discipline 586pseudo-device rnd # /dev/random and in-kernel generator 587#options RND_COM # use "com" randomness as well (BROKEN) 588pseudo-device clockctl # user control of clock subsystem 589