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GENERIC32 revision 1.18
      1 # 	$NetBSD: GENERIC32,v 1.18 2001/07/20 00:07:12 eeh Exp $
      2 
      3 include "arch/sparc64/conf/std.sparc64"
      4 
      5 #ident 		"GENERIC-$Revision: 1.18 $"
      6 
      7 maxusers	64
      8 
      9 ## System kernel configuration.  See options(4) for more detail.
     10 
     11 
     12 # Options for variants of the Sun SPARC architecure.
     13 # We currently support three architecture types; at least one is required.
     14 options 	SUN4U		# sun4u - UltraSPARC
     15 #options 	_LP64		# we're using a 64-bit compiler
     16 
     17 ## System options specific to the sparc machine type
     18 
     19 ## Use a faster console than the PROM's slow drawing routines.  Not needed
     20 ## for headless (no framebuffer) machines.
     21 # XXX borken on sparc64
     22 #options 	RASTERCONSOLE		# fast rasterop console
     23 #options 	FONT_GALLANT12x22	# the console font
     24 #options 	FONT_BOLD8x16		# a somewhat smaller font
     25 
     26 #### System options that are the same for all ports
     27 
     28 ## Root device configuration: change the ?'s if you are going to use a
     29 ## nonstandard root partition (other than where the kernel is booted from)
     30 ## and/or nonstandard root type (not ffs or nfs).  Normally this can be
     31 ## automagically determined at boot time.
     32 
     33 config		netbsd	root on ? type ?
     34 
     35 ## UVM options.
     36 #options 	UVM_PAGE_TRKOWN
     37 #options 	UVMHIST
     38 #options 	UVMHIST_PRINT	# Loud!
     39 
     40 ## System call tracing (see ktrace(1)).
     41 options 	KTRACE
     42 
     43 ## Collect statistics on kernel malloc's and free's.  This does have a
     44 ## significant performance hit on slower machines, so it is intended for
     45 ## diagnostic use only.
     46 #options 	KMEMSTATS
     47 
     48 ## System V compatible IPC subsystem.  (msgctl(2), semctl(2), and shmctl(2))
     49 options 	SYSVMSG		# System V message queues
     50 options 	SYSVSEM		# System V semaphores
     51 options 	SYSVSHM		# System V shared memory
     52 #options 	SHMMAXPGS=1024	# 1024 pages is the default
     53 
     54 ## Loadable kernel module support; still under development.
     55 options 	LKM
     56 
     57 ## NFS boot options; default on sparc is the bootparam protocol
     58 options 	NFS_BOOT_BOOTPARAM
     59 #options 	NFS_BOOT_BOOTP
     60 #options 	NFS_BOOT_DHCP
     61 
     62 #### Debugging options
     63 
     64 ## The DDB in-kernel debugger runs at panic (unless DDB_ONPANIC=0), or at
     65 ## serial console break or keyboard reset, where the PROM would normally
     66 ## intercept.  DDB_HISTORY_SIZE adds up/down arrow command history.
     67 # we enable DDB in GENERIC for now.
     68 options 	DDB			# kernel dynamic debugger
     69 options 	DDB_HISTORY_SIZE=100	# enable history editing in DDB
     70 #options 	DDB_ONPANIC		# see also sysctl(8): `ddb.onpanic'
     71 
     72 ## You may also use gdb, on another computer connected to this machine over
     73 ## a serial port.  Both KGDBDEV and KGDBRATE should be specified; KGDBDEV is
     74 ## a dev_t encoded device number of the serial port to use.
     75 ## (0xc01 = ttya, 0xc02 = ttyb.)
     76 #options 	KGDB		# support for kernel gdb
     77 #options 	KGDBDEV=0xc01	# kgdb device number (this sample is `ttyb')
     78 #options 	KGDBRATE=38400	# baud rate
     79 
     80 
     81 ## Compile the kernel with debugging symbols (`netbsd.gdb' is the debug file),
     82 ## such that gdb(1) can be used on a kernel coredump.
     83 
     84 #makeoptions 	DEBUG="-g"
     85 
     86 
     87 ## Adds code to the kernel that does internal consistency checks, and will
     88 ## cause the kernel to panic if corruption of internal data structures
     89 ## is detected.
     90 #options 	DIAGNOSTIC	# extra kernel sanity checking
     91 
     92 ## Enable (possibly expensive) debugging code that may also display messages
     93 ## on the system console
     94 #options 	DEBUG
     95 
     96 ## Make SCSI error messages more verbose when explaining their meanings.
     97 options 	SCSIVERBOSE
     98 options 	PCIVERBOSE
     99 options 	MIIVERBOSE	# verbose PHY autoconfig messages
    100 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    101 
    102 ## `INSECURE' turns off the kernel security level (securelevel = 0 always).
    103 ## This allows writing to /dev/mem, loading kernel modules while multi-user,
    104 ## and other insecurities good only for development work.  Do not use this
    105 ## option on a production machine.
    106 #options 	INSECURE
    107 
    108 ## Allow non-root users to grab /dev/console with programs such as xconsole.
    109 ## `xconsole' therefore does not need setuid root with this option enabled.
    110 #options 	UCONSOLE
    111 
    112 ## `FDSCRIPTS' allows non-readable but executable scripts by providing a
    113 ## pre-opened opaque file to the script interpreter.  `SETUIDSCRIPTS',
    114 ## which implies FDSCRIPTS, allows scripts to be set-user-id using the same
    115 ## opaque file mechanism.  Perl calls this "secure setuid scripts."
    116 
    117 #options 	FDSCRIPTS
    118 #options 	SETUIDSCRIPTS
    119 
    120 ## Options for compatibility with previous releases foreign system binaries.
    121 ## In the cases of COMPAT_SUNOS and COMPAT_SVR4, you may need to set up
    122 ## additional user-level utilities or system configuration files. See
    123 ## compat_sunos(8) and compat_svr4(8).
    124 
    125 options 	COMPAT_43	# 4.3BSD system interfaces
    126 options 	COMPAT_09	# NetBSD 0.9 binary compatibility
    127 options 	COMPAT_10	# NetBSD 1.0 binary compatibility
    128 options 	COMPAT_11	# NetBSD 1.1 binary compatibility
    129 options 	COMPAT_12	# NetBSD 1.2 binary compatibility
    130 options 	COMPAT_13	# NetBSD 1.3 binary compatibility
    131 options 	COMPAT_14	# NetBSD 1.4 binary compatibility
    132 options 	COMPAT_SUNOS	# SunOS 4.x binary compatibility
    133 options 	COMPAT_SVR4	# SunOS 5.x binary compatibility
    134 #options 	COMPAT_SVR4_32	# SunOS 5.x 32-bit binary compatibility -- 64-bit only
    135 #options 	COMPAT_NETBSD32	# NetBSD/sparc binary compatibility -- 64-bit only
    136 options 	EXEC_AOUT	# execve(2) support for a.out binaries
    137 options 	EXEC_ELF32	# Exec module for SunOS 5.x binaries.
    138 #options 	EXEC_ELF64	# Exec module for sparc64 & SunOs 5.x binaries. -- 64-bit only
    139 #options 	SYSCALL_DEBUG
    140 
    141 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
    142 
    143 ## File systems.  You probably need at least one of FFS or NFS.
    144 file-system	FFS		# Berkeley Fast Filesystem
    145 file-system	NFS		# Sun NFS-compatible filesystem client
    146 file-system	KERNFS		# kernel data-structure filesystem
    147 file-system	NULLFS		# NULL layered filesystem
    148 file-system 	OVERLAY		# overlay file system
    149 file-system	MFS		# memory-based filesystem
    150 file-system	FDESC		# user file descriptor filesystem
    151 file-system	UMAPFS		# uid/gid remapping filesystem
    152 file-system	LFS		# Log-based filesystem (still experimental)
    153 file-system	PORTAL		# portal filesystem (still experimental)
    154 file-system	PROCFS		# /proc
    155 file-system	CD9660		# ISO 9660 + Rock Ridge file system
    156 file-system	UNION		# union file system
    157 file-system	MSDOSFS		# MS-DOS FAT filesystem(s).
    158 
    159 ## File system options.
    160 options 	NFSSERVER	# Sun NFS-compatible filesystem server
    161 options 	QUOTA		# FFS quotas
    162 #options 	FFS_EI		# FFS Endian Independent support
    163 options 	SOFTDEP         # FFS soft updates support.
    164 
    165 ## Network protocol support.  In most environments, INET is required.
    166 options 	INET		# IP (Internet Protocol) v4
    167 options 	INET6		# IPV6
    168 #options 	IPSEC		# IP security
    169 #options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
    170 #options 	IPSEC_DEBUG	# debug for IP security
    171 #options 	GATEWAY		# packet forwarding ("router switch")
    172 options 	MROUTING	# packet forwarding of multicast packets
    173 #options 	DIRECTED_BROADCAST	# allow broadcasts through routers
    174 options 	NS		# Xerox NS networking
    175 #options 	NSIP		# Xerox NS tunneling over IP
    176 options 	ISO,TPIP	# OSI networking
    177 options 	EON		# OSI tunneling over IP
    178 #options 	CCITT,LLC,HDLC	# X.25 packet switched protocol
    179 options 	NETATALK	# AppleTalk (over Ethernet) protocol
    180 options 	NTP		# Network Time Protocol in-kernel support
    181 #options 	PPS_SYNC	# Add serial line synchronization for NTP
    182 options 	PFIL_HOOKS	# Add pfil(9) hooks, intended for custom LKMs.
    183 options 	IPFILTER_LOG	# Add ipmon(8) logging for ipfilter device
    184 options 	PPP_BSDCOMP	# Add BSD compression to ppp device
    185 options 	PPP_DEFLATE	# Add deflate (libz) compression to ppp device
    186 options 	PPP_FILTER	# Add active filters for ppp (via bpf)
    187 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    188 
    189 
    190 #### Main bus and CPU .. all systems.
    191 mainbus0 at root
    192 cpu0	at mainbus0
    193 
    194 #### Bus types found on SPARC systems.
    195 
    196 sbus0	at mainbus0				# Ultra 1
    197 #upa0	at mainbus0				# Ultra 1E, Ultra 2, Ex0000
    198 psycho*	at mainbus0				# Darwin, Ultra5
    199 pci*	at psycho?
    200 pci*	at ppb?
    201 ppb*	at pci? dev ? function ?		# `APB' support.
    202 #pci*	at simba?
    203 #simba*	at pci? dev ? function ?		# `APB' support.
    204 ebus*	at pci?					# ebus devices
    205 # XXX 'puc's aren't really bridges, but there's no better place for them here
    206 puc*	at pci? dev ? function ?		# PCI "universal" comm. cards
    207 
    208 #### Standard system devices -- all required for a given architecture
    209 
    210 ## PROM console driver -- if all else fails
    211 pcons0	at mainbus0				# PROM console
    212 
    213 ## Auxiliary system registers -- We use the OBP for power management
    214 auxio*	at ebus?				# auxio registers
    215 auxio*	at sbus? slot ? offset ?		# auxio registers
    216 
    217 # We also need:
    218 bpp*	at sbus? slot ? offset ?		# parallel port
    219 lpt*	at ebus?				# parallel port
    220 
    221 ## Mostek clock found on 4/300, sun4c, sun4m and sun4u systems.
    222 ## The Mostek clock NVRAM is the "eeprom" on sun4/300 systems.
    223 clock*	at sbus? slot ? offset ?
    224 clock*	at ebus?
    225 
    226 ## Timer chip found on 4/300, sun4c, sun4m and (some) sun4u systems.
    227 timer*	at mainbus0				# sun4c
    228 
    229 #### Serial port configuration
    230 
    231 ## Zilog 8530 serial chips.  Each has two-channels.
    232 ## zs0 is ttya and ttyb.  zs1 is the keyboard and mouse.
    233 zs*	at sbus? slot ? offset ?
    234 zstty*	at zs? channel ?			# ttya
    235 kbd0	at zstty?
    236 ms0	at zstty?
    237 
    238 ## PCI machines have serial ports:
    239 ##	Siemens SAB82532 controller: ttya and ttyb (`su'; sab)
    240 ##	Part of NS PC87332VLJ Super I/O controller: kbd/mouse (`se'; com)
    241 
    242 ## The SAB82532 controller has two serial ports
    243 #sab*	at ebus?				# ttya/ttyb
    244 #sabtty*	at sab? channel ?
    245 
    246 ## Part of a PC87332VLJ
    247 com*	at ebus?				# `com' driver for `su'
    248 kbd0	at com?					# keyboard
    249 ms0	at com?					# mouse
    250 
    251 # PCI serial interfaces
    252 com*	at puc? port ?			# 16x50s on "universal" comm boards
    253 cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
    254 cz*	at pci? dev ? function ?	# Cyclades-Z multi-port serial boards
    255 
    256 #### Disk controllers and disks
    257 
    258 ## The following flags may be set for the NCR53c94 based esp driver:
    259 ##	bits 0-7:  disable disconnect/reselect for the corresponding target
    260 ##	bits 8-15: disable synchronous negotiation for target [bit-8]
    261 
    262 ## sun4u on-board SCSI, and FSBE/S SBus SCSI cards, an NCR53c94 or
    263 ## equivalent behind an LSI Logic DMA controller
    264 
    265 dma*	at sbus? slot ? offset ?		# SBus
    266 esp*	at dma? flags 0x0000			# SBus
    267 
    268 ## FAS supported by esp driver
    269 esp*	at sbus? slot ? offset ?
    270 
    271 scsibus* at esp?
    272 
    273 ## Qlogic ISP SBus or PCI SCSI Card
    274 isp*	at sbus? slot ? offset ?
    275 isp*	at pci?
    276 scsibus* at isp?
    277 
    278 ## GLM support
    279 siop*	at pci?					# 53C875 "glm" compatible
    280 scsibus* at siop?
    281 
    282 # PCI SCSI controllers (untested)
    283 adv*	at pci? dev ? function ?	# AdvanSys 1200[A,B], 9xx[U,UA] SCSI
    284 adw*	at pci? dev ? function ?	# AdvanSys 9x0UW[D], 3940U[2,3]W SCSI
    285 ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
    286 bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
    287 dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
    288 pcscp*	at pci? dev ? function ?	# AMD 53c974 PCscsi-PCI SCSI
    289 
    290 scsibus* at scsi?
    291 
    292 ## These entries find devices on all SCSI busses and assign
    293 ## unit numbers dynamically.
    294 sd*	at scsibus? target ? lun ?		# SCSI disks
    295 st*	at scsibus? target ? lun ?		# SCSI tapes
    296 cd*	at scsibus? target ? lun ?		# SCSI CD-ROMs
    297 ch*	at scsibus? target ? lun ?		# SCSI changer devices
    298 ss*	at scsibus? target ? lun ?		# SCSI scanners
    299 ses*	at scsibus? target ? lun ?		# SCSI SES/SAF-TE devices
    300 uk*	at scsibus? target ? lun ?		# unknown SCSI
    301 
    302 # PCI IDE.
    303 pciide* at pci ? dev ? function ? flags 0x0000
    304 wd*     at pciide? channel ? drive ? flags 0x0000 #flags 0x0ff0
    305 atapibus* at pciide? channel ?
    306 
    307 cd*	at atapibus? drive ? flags 0x0000	# ATAPI CD-ROM drives
    308 sd*	at atapibus? drive ? flags 0x0000	# ATAPI disk drives
    309 uk*	at atapibus? drive ? flags 0x0000	# ATAPI unknown
    310 
    311 # RAID controllers and devices (untested)
    312 cac*	at pci? dev ? function ?	# Compaq PCI array controllers
    313 mlx*	at pci? dev ? function ?	# Mylex DAC960 & DEC SWXCR family
    314 twe*	at pci? dev ? function ?	# 3ware Escalade RAID controllers
    315 
    316 ld*	at cac? unit ?			# logical disk devices
    317 ld*	at twe? unit ?
    318 ld*	at mlx? unit ?
    319 
    320 ## Floppy controller and drive found on SPARCstations.
    321 
    322 # need share with the sparc, and everyone else.  needs to use auxio.
    323 # actually, the ebus version has (will have) direct access to it's AUXIO
    324 # register space (it is mapped in to fdthree not auxio).
    325 #fdc0	at sbus? slot ? offset ?		# SUNW,fdtwo
    326 #fdc0	at ebus?				# fdthree
    327 #fd*	at fdc0 	 			# the drive itself
    328 
    329 ## A disk-like interface to files.  Can be used to create floppy, CD,
    330 ## miniroot images, etc.
    331 
    332 pseudo-device	vnd	4
    333 
    334 ## Concatenated and striped disks; with this, you can create a software-based
    335 ## disk array similar to a "RAID 0" setup.  See ccd(4).
    336 
    337 pseudo-device	ccd	4
    338 
    339 ## RAIDframe disk driver: software RAID driver.  See raid(4).
    340 
    341 pseudo-device	raid	4
    342 #options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
    343 
    344 ## Memory disk device, used on boot floppies with compressed
    345 ## kernel-plus-root-disk images.
    346 
    347 pseudo-device	md	1
    348 
    349 
    350 #### Network interfaces
    351 
    352 ## LANCE Ethernet - an AMD 7990 LANCE behind specialized DMA glue
    353 ## Three flavors of additional SBus ethernets are available.  One attaches
    354 ## directly like the sun4c on-board, one uses the ledma device like the
    355 ## sun4m on-board, and one uses the lebuffer device.
    356 
    357 ledma0		at sbus? slot ? offset ?	# sun4m on-board
    358 le0		at ledma0			# sun4m on-board
    359 le*		at sbus? slot ? offset ?	# SBus
    360 ledma*		at sbus? slot ? offset ?	# SBus
    361 le*		at ledma?			# SBus
    362 lebuffer0	at sbus? slot ? offset ?	# SBus
    363 le0		at lebuffer?			# SBus
    364 lebuffer*	at sbus? slot ? offset ?	# SBus
    365 le*		at lebuffer?			# SBus
    366 
    367 ## Happy Meal Ethernet
    368 hme*		at sbus? slot ? offset ?
    369 hme*		at pci?	dev ? function ?	# network "hme" compatible
    370 
    371 ## qec/be, qec/hme
    372 qec*		at sbus? slot ? offset ?
    373 be*		at qec?
    374 qe*		at qec?
    375 
    376 # PCI network interfaces
    377 # 	UT marks untested.
    378 an*	at pci? dev ? function ?	# Aironet PC4500/PC4800 (802.11) UT
    379 de*	at pci? dev ? function ?	# DEC 21x4x-based Ethernet UT
    380 en*	at pci? dev ? function ?	# ENI/Adaptec ATM UT
    381 # XXX causes ICE
    382 #ep*	at pci? dev ? function ?	# 3Com 3c59x
    383 ex*	at pci? dev ? function ?	# 3Com 90x[B] UT
    384 epic*	at pci? dev ? function ?	# SMC EPIC/100 Ethernet UT
    385 esh*	at pci? dev ? function ?	# Essential HIPPI card UT
    386 fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI UT
    387 fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B UT
    388 le*	at pci? dev ? function ?	# PCnet-PCI Ethernet UT
    389 # XXX uses vtophys()
    390 #lmc*	at pci? dev ? function ?	# Lan Media Corp SSI/HSSI/DS3
    391 ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet UT
    392 ntwoc*	at pci? dev ? function ?	# Riscom/N2 PCI Sync Serial UT
    393 rtk*	at pci? dev ? function ?	# Realtek 8129/8139 UT
    394 sip*	at pci? dev ? function ?	# SiS 900 Ethernet UT
    395 ti*	at pci? dev ? function ?	# Alteon ACEnic gigabit Ethernet UT
    396 # XXX uses vtophys()
    397 #tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
    398 tlp*	at pci? dev ? function ?	# DECchip 21x4x (and clones) Ethernet
    399 #options 	TLP_MATCH_21040
    400 #options 	TLP_MATCH_21041
    401 #options 	TLP_MATCH_21140
    402 #options 	TLP_MATCH_21142
    403 vr*	at pci? dev ? function ?	# VIA Rhine Fast Ethernet
    404 
    405 # MII/PHY support
    406 # XXX: only nsphy "tested"
    407 dmphy*	at mii? phy ?			# Davicom DM9101 PHYs
    408 exphy*	at mii? phy ?			# 3Com internal PHYs
    409 icsphy*	at mii? phy ?			# Integrated Circuit Systems ICS1890
    410 inphy*	at mii? phy ?			# Intel 82555 PHYs
    411 iophy*	at mii? phy ?			# Intel 82553 PHYs
    412 lxtphy*	at mii? phy ?			# Level One LXT-970 PHYs
    413 nsphy*	at mii? phy ?			# NS83840 PHYs
    414 nsphyter* at mii? phy ?			# NS83843 PHYs
    415 qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
    416 sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
    417 tlphy*	at mii? phy ?			# ThunderLAN PHYs
    418 tqphy*	at mii? phy ?			# TDK Semiconductor PHYs
    419 ukphy*	at mii? phy ?			# generic unknown PHYs
    420 
    421 # PCI USB controllers
    422 #ohci*	at pci? dev ? function ?			# Open Host Controller
    423 
    424 #usb*	at ohci?					# USB bus support
    425 #uhub*	at usb?						# USB Hubs
    426 #uhub*	at uhub? port ? configuration ? interface ?
    427 
    428 #uhid*	at uhub? port ? configuration ? interface ?	# USB Generic HID
    429 #ulpt*	at uhub? port ? configuration ? interface ?	# USB Printer
    430 
    431 #umodem*	at uhub? port ? configuration ?			# USB Modem
    432 #ucom*	at umodem?
    433 
    434 #umass*	at uhub? port ? configuration ? interface ?	# USB Mass Storage
    435 #atapibus* at umass? channel ?
    436 #scsibus* at umass? channel ?
    437 
    438 #uaudio*	at uhub? port ? configuration ?			# USB audio
    439 
    440 # USB Ethernet adapters
    441 #aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
    442 #cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
    443 #kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
    444 
    445 #uscanner* at uhub? port ?				# USB scanners
    446 #uyap* at uhub? port ?					# Y@P firmware loader
    447 #ugen*	at uhub? port ? configuration ? interface ?	# USB Generic driver
    448 
    449 
    450 ## Loopback network interface; required
    451 pseudo-device	loop
    452 
    453 ## SLIP and CSLIP interfaces, for IP over a serial line.
    454 pseudo-device	sl		2
    455 
    456 ## PPP, the successor to SLIP.  See pppd(8).
    457 pseudo-device	ppp		2
    458 
    459 ## Starmode Radio IP, a special hardware network device.
    460 pseudo-device	strip		1
    461 
    462 ## Network "tunnel" device, allowing protocol stacks to run in the userland.
    463 ## This is used by the third-party user-mode "ppp" program, and others.
    464 pseudo-device	tun		4
    465 
    466 ## Generic L3 over IP tunnel
    467 #pseudo-device	gre		2	# generic L3 over IP tunnel
    468 
    469 ## Berkeley Packet Filter, required to run RARPD.  A generic C-language
    470 ## interface that allows selective examining of incoming packets.
    471 pseudo-device	bpfilter	8
    472 
    473 ## IP Filter, used in firewall and NAT applications.  See ipnat(8) for
    474 ## one example of the use of the IP Filter.
    475 pseudo-device	ipfilter
    476 
    477 ## for IPv6
    478 pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
    479 #pseudo-device	faith		1	# IPv[46] tcp relay translation i/f
    480 #pseudo-device	stf		1	# 6to4 IPv6 over IPv4 encapsulation
    481 
    482 
    483 #### Audio and video devices
    484 
    485 ## /dev/audio support (`audiocs' plus `audio')
    486 ##
    487 audiocs*	at sbus? slot ? offset ?	# SUNW,CS4231
    488 audio*		at audiocs?
    489 
    490 
    491 ## Sun "bwtwo" black and white framebuffer, found on sun4, sun4c, and sun4m
    492 ## systems.  If your sun4 system has a cgfour installed in the P4 slot,
    493 ## the P4 entries for "bwtwo" will attach to the overlay plane of the
    494 ## "cgfour".
    495 
    496 #bwtwo0		at sbus? slot ? offset ?	# sun4c and sun4m
    497 #bwtwo*		at sbus? slot ? offset ?
    498 
    499 ## Sun "cgthree" Sbus color framebuffer
    500 #cgthree0	at sbus? slot ? offset ?
    501 #cgthree*	at sbus? slot ? offset ?
    502 
    503 ## Sun "cgsix" accelerated color framebuffer.
    504 cgsix0		at sbus? slot ? offset ?
    505 cgsix*		at sbus? slot ? offset ?
    506 
    507 ## Sun FFB not supported
    508 #ffb*		at upa?
    509 
    510 #### Other device configuration
    511 
    512 ## Pseudo ttys, required for network logins and programs like screen.
    513 
    514 pseudo-device	pty			# pseudo-ttys (for network, etc.)
    515 
    516 ## Random device, used to implement /dev/random (a source of random noise),
    517 ## and generate randomness for some kernel formulae.
    518 
    519 pseudo-device	rnd
    520