GENERIC_TINY revision 1.113
1# $NetBSD: GENERIC_TINY,v 1.113 2008/04/30 15:29:11 ad 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-related options. 16#options VM86 # virtual 8086 emulation 17#options USER_LDT # user-settable LDT; used by WINE 18# insert delay no-ops in interrupts; recommended on very old machines 19options PIC_DELAY 20 21# This option allows you to force a serial console at the specified 22# I/O address. see console(4) for details. 23#options CONSDEVNAME="\"com\"" 24 25# The following options override the memory sizes passed in from the boot 26# block. Use them *only* if the boot block is unable to determine the correct 27# values. Note that the BIOS may *correctly* report less than 640k of base 28# memory if the extended BIOS data area is located at the top of base memory 29# (as is the case on most recent systems). 30#options REALBASEMEM=... # size of base memory 31#options REALEXTMEM=... # size of extended memory 32 33# Save a physical page per process by not setting a kernel stack red zone. 34options NOREDZONE 35 36# Standard system options 37 38options INSECURE # disable kernel security levels - X needs this 39 40options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT 41#options NTP # NTP phase/frequency locked loop 42 43#options KTRACE # system call tracing via ktrace(1) 44 45#options SYSVMSG # System V-like message queues 46#options SYSVSEM # System V-like semaphores 47#options SYSVSHM # System V-like memory sharing 48#options SHMMAXPGS=2048 # 2048 pages is the default 49#options P1003_1B_SEMAPHORE # p1003.1b semaphore support 50 51options NMBCLUSTERS=256 52 53#options LKM # loadable kernel modules 54 55#options USERCONF # userconf(4) support 56options PIPE_SOCKETPAIR # smaller, but slower pipe(2) 57#options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel 58 59# Diagnostic/debugging support options 60#options DIAGNOSTIC # expensive kernel consistency checks 61#options DEBUG # expensive debugging checks/support 62#options KMEMSTATS # kernel memory statistics (vmstat -m) 63#options DDB # in-kernel debugger 64#options DDB_ONPANIC=1 # see also sysctl(8): `ddb.onpanic' 65#options DDB_HISTORY_SIZE=512 # enable history editing in DDB 66#options KGDB # remote debugger 67#options KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600 68#makeoptions DEBUG="-g" # compile full symbol table 69 70# Compatibility options 71#options COMPAT_NOMID # NetBSD 0.8, 386BSD, and BSDI 72#options COMPAT_09 # NetBSD 0.9 73#options COMPAT_10 # NetBSD 1.0 74#options COMPAT_11 # NetBSD 1.1 75options COMPAT_12 # NetBSD 1.2, 386BSD, and BSDI 76options COMPAT_13 # NetBSD 1.3, 386BSD, and BSDI 77options COMPAT_14 # NetBSD 1.4 78options COMPAT_15 # NetBSD 1.5 79options COMPAT_16 # NetBSD 1.6 80options COMPAT_20 # NetBSD 2.0 81options COMPAT_30 # NetBSD 3.0 compatibility. 82options COMPAT_40 # NetBSD 4.0 83options COMPAT_43 # 4.3BSD, 386BSD, and BSDI 84#options COMPAT_386BSD_MBRPART # recognize old partition ID 85#options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended. 86 87#options COMPAT_SVR4 # binary compatibility with SVR4 88#options COMPAT_IBCS2 # binary compatibility with SCO and ISC 89#options COMPAT_LINUX # binary compatibility with Linux 90#options COMPAT_FREEBSD # binary compatibility with FreeBSD 91options COMPAT_BSDPTY # /dev/[pt]ty?? ptys. 92 93# File systems 94file-system FFS # UFS 95#file-system EXT2FS # second extended file system (linux) 96#file-system LFS # log-structured file system 97#file-system MFS # memory file system 98file-system NFS # Network File System client 99file-system CD9660 # ISO 9660 + Rock Ridge file system 100file-system MSDOSFS # MS-DOS file system 101#file-system FDESC # /dev/fd 102file-system KERNFS # /kern 103#file-system NULLFS # loopback file system 104#file-system PORTAL # portal filesystem (still experimental) 105#file-system PROCFS # /proc 106#file-system UMAPFS # NULLFS + uid and gid remapping 107#file-system UNION # union file system 108#file-system PTYFS # /dev/pts/N support 109#file-system TMPFS # Efficient memory file-system 110 111# File system options 112#options QUOTA # UFS quotas 113#options FFS_EI # FFS Endian Independant support 114#options NFSSERVER # Network File System server 115options FFS_NO_SNAPSHOT # No FF snapshot support 116#options EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and 117 # immutable) behave as system flags. 118 119# Networking options 120#options GATEWAY # packet forwarding 121options INET # IP + ICMP + TCP + UDP 122#options MROUTING # IP multicast routing 123#options PIM # Protocol Independent Multicast 124#options ISO,TPIP # OSI 125#options EON # OSI tunneling over IP 126#options NETATALK # AppleTalk networking protocols 127#options PPP_BSDCOMP # BSD-Compress compression support for PPP 128#options PPP_DEFLATE # Deflate compression support for PPP 129#options PPP_FILTER # Active filter support for PPP (requires bpf) 130#options PFIL_HOOKS # pfil(9) packet filter hooks 131#options IPFILTER_LOG # ipmon(8) log support 132#options IPFILTER_LOOKUP # ippool(8) support 133#options IPFILTER_DEFAULT_BLOCK # block all packets by default 134#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG 135 136#options ALTQ # Manipulate network interfaces' output queues 137#options ALTQ_BLUE # Stochastic Fair Blue 138#options ALTQ_CBQ # Class-Based Queueing 139#options ALTQ_CDNR # Diffserv Traffic Conditioner 140#options ALTQ_FIFOQ # First-In First-Out Queue 141#options ALTQ_FLOWVALVE # RED/flow-valve (red-penalty-box) 142#options ALTQ_HFSC # Hierarchical Fair Service Curve 143#options ALTQ_LOCALQ # Local queueing discipline 144#options ALTQ_PRIQ # Priority Queueing 145#options ALTQ_RED # Random Early Detection 146#options ALTQ_RIO # RED with IN/OUT 147#options ALTQ_WFQ # Weighted Fair Queueing 148 149# These options enable verbose messages for several subsystems. 150# Warning, these may compile large string tables into the kernel! 151#options EISAVERBOSE # verbose EISA device autoconfig messages 152#options PCIVERBOSE # verbose PCI device autoconfig messages 153#options PCI_CONFIG_DUMP # verbosely dump PCI config space 154#options PCMCIAVERBOSE # verbose PCMCIA configuration messages 155#options SCSIVERBOSE # human readable SCSI error messages 156#options USBVERBOSE # verbose USB device autoconfig messages 157 158#options NFS_BOOT_BOOTP,NFS_BOOT_BOOTPARAM 159 160# Kernel root file system and dump configuration. 161config netbsd root on ? type ? 162#config netbsd root on sd0a type ffs 163#config netbsd root on ? type nfs 164 165# 166# wscons options 167# 168# builtin terminal emulations 169#options WSEMUL_SUN # sun terminal emulation 170options WSEMUL_VT100 # VT100 / VT220 emulation 171# customization of console and kernel output - see dev/wscons/wsdisplayvar.h 172#options WSDISPLAY_CUSTOM_OUTPUT # color customization from wsconsctl(8) 173#options WS_DEFAULT_FG=WSCOL_WHITE 174#options WS_DEFAULT_BG=WSCOL_BLACK 175#options WS_DEFAULT_COLATTR="(0)" 176#options WS_DEFAULT_MONOATTR="(0)" 177options WS_KERNEL_FG=WSCOL_GREEN 178#options WS_KERNEL_BG=WSCOL_BLACK 179#options WS_KERNEL_COLATTR="" 180#options WS_KERNEL_MONOATTR="" 181# customization of console border color 182#options WSDISPLAY_CUSTOM_BORDER # border customization from wsconsctl(8) 183#options WSDISPLAY_BORDER_COLOR=WSCOL_BLUE # default color 184# compatibility to other console drivers 185options WSDISPLAY_COMPAT_PCVT # emulate some ioctls 186options WSDISPLAY_COMPAT_SYSCONS # emulate some ioctls 187options WSDISPLAY_COMPAT_USL # VT handling 188options WSDISPLAY_COMPAT_RAWKBD # can get raw scancodes 189# see dev/pckbport/wskbdmap_mfii.c for implemented layouts 190#options PCKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for pckbd driver 191#options UKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for ukbd driver 192# allocate a number of virtual screens at autoconfiguration time 193#options WSDISPLAY_DEFAULTSCREENS=4 194# use a large software cursor that doesn't blink 195options PCDISPLAY_SOFTCURSOR 196 197# 198# Device configuration 199# 200 201#apm0 at mainbus0 # Advanced power management 202 203 204# Basic Bus Support 205 206# PCI bus support 207#pci* at mainbus? bus ? 208#pci* at pchb? bus ? 209#pci* at ppb? bus ? 210 211# PCI bridges 212#pchb* at pci? dev ? function ? # PCI-Host bridges 213#pceb* at pci? dev ? function ? # PCI-EISA bridges 214#pcib* at pci? dev ? function ? # PCI-ISA bridges 215#ichlpcib* at pci? dev ? function ? # Intel ICH PCI-ISA w/ watchdog and 216 # SpeedStep support 217#ppb* at pci? dev ? function ? # PCI-PCI bridges 218# XXX 'puc's aren't really bridges, but there's no better place for them here 219#puc* at pci? dev ? function ? # PCI "universal" comm. cards 220 221# EISA bus support 222#eisa0 at mainbus? 223#eisa0 at pceb? 224 225# ISA bus support 226isa0 at mainbus? 227#isa0 at pceb? 228#isa0 at pcib? 229#isa0 at ichlpcib? 230 231# PCMCIA bus support 232pcmcia* at pcic? controller ? socket ? 233 234# ISA PCMCIA controllers 235pcic0 at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000 236pcic1 at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000 237 238# ISA Plug-and-Play bus support 239#isapnp0 at isa? 240 241# ISA Plug-and-Play PCMCIA controllers 242#pcic* at isapnp? 243 244# Coprocessor Support 245 246# Math Coprocessor support 247npx0 at isa? port 0xf0 irq 13 # x86 math coprocessor 248 249# Console Devices 250 251# wscons 252pckbc0 at isa? # pc keyboard controller 253pckbd* at pckbc? # PC keyboard 254#pms* at pckbc? # PS/2 mouse for wsmouse 255vga0 at isa? 256#vga* at pci? dev ? function ? 257pcdisplay0 at isa? # CGA, MDA, EGA, HGA 258wsdisplay* at vga? console ? 259wsdisplay* at pcdisplay? console ? 260wskbd* at pckbd? console ? 261#wsmouse* at pms? mux 0 262 263 264#attimer0 at isa? 265#pcppi0 at isa? 266#sysbeep0 at pcppi? 267 268# Serial Devices 269 270# PCI serial interfaces 271#com* at puc? port ? # 16x50s on "universal" comm boards 272#cy* at pci? dev ? function ? # Cyclades Cyclom-Y serial boards 273 274# ISA Plug-and-Play serial interfaces 275#com* at isapnp? # Modems and serial boards 276 277# PCMCIA serial interfaces 278com* at pcmcia? function ? # Modems and serial cards 279 280# ISA serial interfaces 281#options COM_HAYESP # adds Hayes ESP serial board support 282com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports 283com1 at isa? port 0x2f8 irq 3 284com2 at isa? port 0x3e8 irq 5 285#com3 at isa? port 0x2e8 irq 9 286#ast0 at isa? port 0x1a0 irq 5 # AST 4-port serial cards 287#com* at ast? slave ? 288#boca0 at isa? port 0x100 irq 5 # BOCA 8-port serial cards 289#com* at boca? slave ? 290#rtfps0 at isa? port 0x1230 irq 10 # RT 4-port serial cards 291#com* at rtfps? slave ? 292#cy0 at isa? iomem 0xd4000 irq 12 # Cyclades serial cards 293 294 295# Parallel Printer Interfaces 296 297# PCI parallel printer interfaces 298#lpt* at puc? port ? # || ports on "universal" comm boards 299 300# ISA parallel printer interfaces 301lpt0 at isa? port 0x378 irq 7 # standard PC parallel ports 302#lpt1 at isa? port 0x278 303#lpt2 at isa? port 0x3bc 304 305 306# SCSI Controllers and Devices 307 308# PCI SCSI controllers 309#ahc* at pci? dev ? function ? # Adaptec [23]94x, aic78x0 SCSI 310#dpt* at pci? dev ? function ? # DPT SmartCache/SmartRAID 311#bha* at pci? dev ? function ? # BusLogic 9xx SCSI 312#isp* at pci? dev ? function ? # Qlogic ISP [12]0x0 SCSI/FibreChannel 313#siop* at pci? dev ? function ? # NCR 53c8xx SCSI 314#esiop* at pci? dev ? function ? # NCR 53c875 SCSI and newer 315#options SIOP_SYMLED # drive the act. LED in software 316 317# EISA SCSI controllers 318#ahb* at eisa? slot ? # Adaptec 174[02] SCSI 319#ahc* at eisa? slot ? # Adaptec 274x, aic7770 SCSI 320#bha* at eisa? slot ? # BusLogic 7xx SCSI 321#dpt* at eisa? slot ? # DPT SmartCache/SmartRAID 322#uha* at eisa? slot ? # UltraStor 24f SCSI 323 324# PCMCIA SCSI controllers 325#aic* at pcmcia? function ? # Adaptec APA-1460 SCSI 326 327# ISA Plug-and-Play SCSI controllers 328#aic* at isapnp? # Adaptec AHA-1520B 329 330# ISA SCSI controllers 331#aha0 at isa? port 0x330 irq ? drq ? # Adaptec 154[02] SCSI 332#aha1 at isa? port 0x334 irq ? drq ? 333#ahc0 at isa? port ? irq ? # Adaptec 284x SCSI 334#aic0 at isa? port 0x340 irq 11 # Adaptec 152[02] SCSI 335#bha0 at isa? port 0x330 irq ? drq ? # BusLogic [457]4X SCSI 336#bha1 at isa? port 0x334 irq ? drq ? 337#sea0 at isa? iomem 0xc8000 irq 5 # Seagate/Future Domain SCSI 338#uha0 at isa? port 0x330 irq ? drq ? # UltraStor [13]4f SCSI 339#uha1 at isa? port 0x340 irq ? drq ? 340#wds0 at isa? port 0x350 irq 15 drq 6 # WD7000 and TMC-7000 controllers 341#wds1 at isa? port 0x358 irq 11 drq 5 342 343# SCSI bus support 344#scsibus* at scsi? 345 346# SCSI devices 347#sd* at scsibus? target ? lun ? # SCSI disk drives 348#st* at scsibus? target ? lun ? # SCSI tape drives 349#cd* at scsibus? target ? lun ? # SCSI CD-ROM drives 350#ch* at scsibus? target ? lun ? # SCSI autochangers 351#ss* at scsibus? target ? lun ? # SCSI scanners 352#uk* at scsibus? target ? lun ? # SCSI unknown 353 354 355# IDE and related devices 356 357# ISA Plug-and-Play IDE controllers 358#wdc* at isapnp? 359 360# PCMCIA IDE controllers 361wdc* at pcmcia? function ? 362 363# ISA IDE controllers 364wdc0 at isa? port 0x1f0 irq 14 # ST506, ESDI, and IDE controllers 365wdc1 at isa? port 0x170 irq 15 366 367# ATA (IDE) bus support 368atabus* at ata? 369#options ATADEBUG 370 371# IDE drives 372wd* at atabus? drive ? # the drives themselves 373 374# ATAPI bus support 375atapibus* at atapi? 376 377# ATAPI devices 378cd* at atapibus? drive ? # ATAPI CD-ROM drives 379sd* at atapibus? drive ? # ATAPI disk drives 380 381 382# Miscellaneous mass storage devices 383 384# ISA floppy 385fdc0 at isa? port 0x3f0 irq 6 drq 2 # standard PC floppy controllers 386#fdc1 at isa? port 0x370 irq ? drq ? 387fd* at fdc? drive ? # the drives themselves 388# some machines need you to do this instead of fd* 389#fd0 at fdc0 drive 0 390 391# ISA CD-ROM devices 392#mcd0 at isa? port 0x300 irq 10 # Mitsumi CD-ROM drives 393 394# ISA tape devices 395# note: the wt driver conflicts unpleasantly with SMC boards at the 396# same I/O address. The probe reprograms their EEPROMs. Don't 397# uncomment it unless you are actually using it. 398#wt0 at isa? port 0x308 irq 5 drq 1 # Archive and Wangtek QIC tape drives 399 400 401# Network Interfaces 402 403# PCI network interfaces 404#en* at pci? dev ? function ? # ENI/Adaptec ATM 405#ep* at pci? dev ? function ? # 3Com 3c59x/3c90x Ethernet 406#epic* at pci? dev ? function ? # SMC EPIC/100 Ethernet 407#esh* at pci? dev ? function ? # Essential HIPPI card 408#fpa* at pci? dev ? function ? # DEC DEFPA FDDI 409#fxp* at pci? dev ? function ? # Intel EtherExpress PRO 10+/100B 410#le* at pci? dev ? function ? # PCnet-PCI Ethernet 411#ne* at pci? dev ? function ? # NE2000-compatible Ethernet 412#tl* at pci? dev ? function ? # ThunderLAN-based Ethernet 413#tlp* at pci? dev ? function ? # DECchip 21x4x and clones 414 415# EISA network interfaces 416#ep* at eisa? slot ? # 3Com 3c579 Ethernet 417#fea* at eisa? slot ? # DEC DEFEA FDDI 418 419# ISA Plug-and-Play network interfaces 420#ep* at isapnp? # 3Com 3c509 Ethernet 421#ne* at isapnp? # NE2000-compatible Ethernet 422 423# PCMCIA network interfaces 424ep* at pcmcia? function ? # 3Com 3c589 and 3c562 Ethernet 425mbe* at pcmcia? function ? # MB8696x based Ethernet 426ne* at pcmcia? function ? # NE2000-compatible Ethernet 427sm* at pcmcia? function ? # Megahertz Ethernet 428 429# ISA network interfaces 430ate0 at isa? port 0x2a0 irq ? # AT1700 431ec0 at isa? port 0x250 iomem 0xd8000 irq 9 # 3Com 3c503 Ethernet 432eg0 at isa? port 0x280 irq 9 # 3C505 ethernet cards 433el0 at isa? port 0x300 irq 9 # 3C501 ethernet cards 434ep0 at isa? port ? irq ? # 3C509 ethernet cards 435ef0 at isa? port 0x360 iomem 0xd0000 irq 7 # 3C507 436ai0 at isa? port 0x360 iomem 0xd0000 irq 7 # StarLAN 437fmv0 at isa? port 0x2a0 irq ? # FMV-180 series 438ix0 at isa? port 0x300 irq 10 # EtherExpress/16 439iy0 at isa? port 0x360 irq ? # EtherExpress PRO 10 ISA 440lc0 at isa? port 0x320 iomem ? irq ? # DEC EtherWORKS III (LEMAC) 441#depca0 at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5 # DEPCA 442#le* at depca? 443nele0 at isa? port 0x320 irq 9 drq 7 # NE2100 444le* at nele? 445bicc0 at isa? port 0x320 irq 10 drq 7 # BICC IsoLan 446le* at bicc? 447ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards 448ne1 at isa? port 0x300 irq 10 449sm0 at isa? port 0x300 irq 10 # SMC91C9x Ethernet 450we0 at isa? port 0x280 iomem 0xd0000 irq 9 # WD/SMC Ethernet 451we1 at isa? port 0x300 iomem 0xcc000 irq 10 452 453# MII bus support 454#mii* at tl? 455 456# MII PHY network interfaces 457#tlphy* at mii? dev ? # ThunderLAN PHYs 458#nsphy* at mii? dev ? # NS and compatible PHYs 459#ukphy* at mii? phy ? # generic unknown PHYs 460 461 462# USB Controller and Devices 463 464# PCI USB controllers 465#uhci* at pci? # Universal Host Controller (Intel) 466#ohci* at pci? # Open Host Controller 467 468# USB bus support 469#usb* at uhci? 470#usb* at ohci? 471 472# USB Hubs 473#uhub* at usb? 474#uhub* at uhub? port ? 475 476# USB Mice 477#ums* at uhub? port ? 478 479# USB Keyboards 480#ukbd* at uhub? port ? 481 482# USB Generic HID devices 483#uhid* at uhub? port ? 484 485# USB Printer 486#ulpt* at uhub? port ? 487 488# USB Mass Storage 489#umass* at uhub? port ? configuration ? interface ? 490#wd* at umass? 491 492# USB Ethernet adapters 493#aue* at uhub? port ? # ADMtek AN986 Pegasus based adapters 494#axe* at uhub? port ? # ASIX AX88172 based adapters 495#cue* at uhub? port ? # CATC USB-EL1201A based adapters 496#kue* at uhub? port ? # Kawasaki LSI KL5KUSB101B based adapters 497#url* at uhub? port ? # Realtek RTL8150L based adapters 498 499# Y@P firmware loader 500#uyap* at uhub? port ? 501 502# USB Generic driver 503#ugen* at uhub? port ? 504 505# Audio Devices 506 507# PCI audio devices 508#eap* at pci? dev ? function ? # Ensoniq AudioPCI 509 510# ISA Plug-and-Play audio devices 511#guspnp* at isapnp? # Gravis Ultra Sound PnP audio 512#sb* at isapnp? # SoundBlaster-compatible audio 513#ym* at isapnp? # Yamaha OPL3-SA[23] audio 514 515# ISA audio devices 516#aria0 at isa? port 0x290 irq 10 # Aria 517#gus0 at isa? port 0x220 irq 7 drq 1 drq2 6 # Gravis Ultra Sound 518#pas0 at isa? port 0x220 irq 7 drq 1 # ProAudio Spectrum 519#sb0 at isa? port 0x220 irq 5 drq 1 drq2 5 # SoundBlaster 520#wss0 at isa? port 0x530 irq 10 drq 0 drq2 1 # Windows Sound System 521 522# Audio support 523#audio* at audiobus? 524 525# The spkr driver provides a simple tone interface to the built in speaker. 526#spkr0 at pcppi? # PC speaker 527 528 529# Joysticks 530 531# ISA Plug-and-Play joysticks 532#joy* at isapnp? # Game ports (usually on audio cards) 533 534# ISA joysticks. Probe is a little strange; add only if you have one. 535#joy0 at isa? port 0x201 536 537 538# Miscellaneous Devices 539 540# Planetconnect Satellite receiver driver. 541#satlink0 at isa? port 0x300 drq 1 542 543 544# Pull in optional local configuration 545cinclude "arch/i386/conf/GENERIC.local" 546 547 548# Pseudo-Devices 549 550# disk/mass storage pseudo-devices 551#pseudo-device ccd 4 # concatenated/striped disk devices 552pseudo-device fss 4 # file system snapshot device 553#pseudo-device md 1 # memory disk device (ramdisk) 554pseudo-device vnd # disk-like interface to files 555#options VND_COMPRESSION # compressed vnd(4) 556 557# network pseudo-devices 558pseudo-device bpfilter # Berkeley packet filter 559pseudo-device bridge # simple inter-network bridging 560pseudo-device ipfilter # IP filter (firewall) and NAT 561pseudo-device loop # network loopback 562pseudo-device ppp # Point-to-Point Protocol 563pseudo-device pppoe # PPP over Ethernet (RFC 2516) 564#pseudo-device sl # Serial Line IP 565#pseudo-device strip # Starmode Radio IP (Metricom) 566pseudo-device tun # network tunneling over tty 567#pseudo-device tap # virtual Ethernet 568 569# miscellaneous pseudo-devices 570pseudo-device pty # pseudo-terminals 571pseudo-device rnd # /dev/random and in-kernel generator 572#options RND_COM # use "com" randomness as well (BROKEN) 573pseudo-device clockctl # user control of clock subsystem 574