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Date:      Sat,  2 Dec 2000 09:49:22 -0600
From:      Gerd Knops <gerti@bitart.com>
To:        barry@Lustig.COM
Cc:        stable@freebsd.org, mobile@freebsd.org
Subject:   Re: Boot problem with 4.2-STABLE on VAIO z505-LE
Message-ID:  <20001202154922.8753.qmail@camelot.bitart.com>
In-Reply-To: <20001201211336.8019.qmail@devious.lustig.com>
References:  <20001201211336.8019.qmail@devious.lustig.com>

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Barry Lustig wrote:
> When I add "device umass" to my configuration I get the following
> failure on boot. I've added the configuration file at the end of this
> message. Any ideas?
>
Looks like the Sony USB Memory Stick Slot is causing trouble. I have  
an external USB Memory Stick Adapter working just fine, no idea why the  
internal one is failing. Do you happen to have a memory stick in  
there?

Gerd


> barry
>
> ok boot -v
> SMAP type=01 base=00000000 00000000 len=00000000 0009f800
> SMAP type=02 base=00000000 0009f800 len=00000000 00000800
> SMAP type=02 base=00000000 000e8400 len=00000000 00017c00
> SMAP type=01 base=00000000 00100000 len=00000000 0bef0000
> SMAP type=03 base=00000000 0bff0000 len=00000000 0000f800
> SMAP type=04 base=00000000 0bfff800 len=00000000 00000800
> SMAP type=02 base=00000000 fff80000 len=00000000 00080000
> Copyright (c) 1992-2000 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993,
> 1994 The Regents of the University of California. All rights
> reserved. FreeBSD 4.2-STABLE #7: Fri Dec  1 14:08:28 EST 2000
> barry@vaio.lustig.com:/usr/src/sys/compile/VAIO
> Calibrating clock(s) ... TSC clock: 645193534 Hz, i8254 clock:
> 1193167 Hz CLK_USE_I8254_CALIBRATION not specified - using default
> frequency Timecounter "i8254"  frequency 1193182 Hz
> CLK_USE_TSC_CALIBRATION not specified - using old calibration method
> CPU: Pentium III/Pentium III Xeon/Celeron (645.21-MHz 686-class CPU)
> Origin = "GenuineIntel"  Id = 0x683  Stepping = 3

>  
Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
> real memory = 201261056 (196544K bytes) Physical memory chunk(s):
> 0x00001000 - 0x0009efff, 647168 bytes (158 pages)
> 0x00408000 - 0x0bfe7fff, 197001216 bytes (48096 pages)
> avail memory = 191856640 (187360K bytes)
> bios32: Found BIOS32 Service Directory header at 0xc00f6c10
> bios32: Entry = 0xfd890 (c00fd890)  Rev = 0  Len = 1
> pcibios: PCI BIOS entry at 0x11e
> pnpbios: Found PnP BIOS data at 0xc00f6c40
> pnpbios: Entry = f0000:b431  Rev = 1.0
> pnpbios: Event flag at 400
> Other BIOS signatures found:
> ACPI: 000f6bb0
> Preloaded elf kernel "kernel" at 0xc03e2000.
> Pentium Pro MTRR support enabled
> md0: Malloc disk
> Creating DISK md0
> Math emulator present
> pci_open(1):    mode 1 addr port (0x0cf8) is 0x80003904
> pci_open(1a):   mode1res=0x80000000 (0x80000000)
> pci_cfgcheck: device 0 [class=060000] [hdr=00] is there (id=71908086)
> apm0: <APM BIOS> on motherboard apm: found APM BIOS v1.2, connected
> at v1.2 npx0: <math processor> on motherboard
> npx0: INT 16 interface
> pci_open(1):    mode 1 addr port (0x0cf8) is 0x00000000
> pci_open(1a):   mode1res=0x80000000 (0x80000000)
> pci_cfgcheck: device 0 [class=060000] [hdr=00] is there (id=71908086)
> pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
> found-> vendor=0x8086, dev=0x7190, revid=0x03 class=06-00-00,
> hdrtype=0x00, mfdev=0 subordinatebus=0        secondarybus=0
> map[10]: type 1, range 32, base 40000000, size 24
> found-> vendor=0x8086, dev=0x7191, revid=0x03
> class=06-04-00, hdrtype=0x01, mfdev=0
> subordinatebus=1        secondarybus=1
> found-> vendor=0x8086, dev=0x7110, revid=0x02
> class=06-01-00, hdrtype=0x00, mfdev=1
> subordinatebus=0        secondarybus=0
> found-> vendor=0x8086, dev=0x7111, revid=0x01
> class=01-01-80, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> map[20]: type 1, range 32, base 0000fc90, size  4
> found-> vendor=0x8086, dev=0x7112, revid=0x01
> class=0c-03-00, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> intpin=d, irq=9
> map[20]: type 1, range 32, base 0000fca0, size  5
> found-> vendor=0x8086, dev=0x7113, revid=0x03
> class=06-80-00, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> map[90]: type 1, range 32, base 00001040, size  4
> found-> vendor=0x104d, dev=0x8039, revid=0x02
> class=0c-00-10, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> intpin=a, irq=9
> map[10]: type 1, range 32, base fedf7000, size 11
> map[14]: type 1, range 32, base fedf7c00, size  9
> found-> vendor=0x1073, dev=0x0010, revid=0x02
> class=04-01-00, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> intpin=a, irq=9
> map[10]: type 1, range 32, base fedf8000, size 15
> map[14]: type 1, range 32, base 0000fcc0, size  6
> map[18]: type 3, range 32, base 0000fc8c, size  2
> found-> vendor=0x14f1, dev=0x2443, revid=0x01
> class=07-80-00, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> intpin=a, irq=9
> map[10]: type 1, range 32, base fede0000, size 16
> map[14]: type 3, range 32, base 0000fc38, size  3
> found-> vendor=0x8086, dev=0x1229, revid=0x08
> class=02-00-00, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> intpin=a, irq=9
> map[10]: type 1, range 32, base fedf6000, size 12
> map[14]: type 1, range 32, base 0000fc40, size  6
> map[18]: type 1, range 32, base fec00000, size 20
> found-> vendor=0x1180, dev=0x0475, revid=0x80
> class=06-07-00, hdrtype=0x02, mfdev=0
> subordinatebus=0        secondarybus=0
> intpin=a, irq=255
> pci0: <PCI bus> on pcib0
> pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on
> pci0 found-> vendor=0x1002, dev=0x4c4d, revid=0x64
> class=03-00-00, hdrtype=0x00, mfdev=0
> subordinatebus=0        secondarybus=0
> intpin=a, irq=9
> map[10]: type 1, range 32, base fd000000, size 24
> map[14]: type 1, range 32, base 0000e800, size  8
> map[18]: type 1, range 32, base febff000, size 12
> pci1: <PCI bus> on pcib1
> pci1: <ATI Mobility-1 graphics accelerator> (vendor=0x1002,
> dev=0x4c4d) at 0.0 irq 9 isab0: <Intel 82371AB PCI to ISA bridge> at
> device 7.0 on pci0 isa0: <ISA bus> on isab0
> atapci0: <Intel PIIX4 ATA33 controller> port 0xfc90-0xfc9f at device
> 7.1 on pci0 ata0: iobase=0x01f0 altiobase=0x03f6 bmaddr=0xfc90
> ata0: mask=03 status0=50 status1=00
> ata0: mask=03 ostat0=50 ostat2=00
> ata0-master: ATAPI probe a=00 b=00
> ata0-slave: ATAPI probe a=00 b=00
> ata0: mask=03 status0=50 status1=00
> ata0-master: ATA probe a=01 b=a5
> ata0: devices=01
> ata0: at 0x1f0 irq 14 on atapci0
> ata1: iobase=0x0170 altiobase=0x0376 bmaddr=0xfc98
> ata1: mask=03 status0=00 status1=00
> ata1: mask=03 ostat0=00 ostat2=00
> ata1-master: ATAPI probe a=00 b=00
> ata1-slave: ATAPI probe a=00 b=00
> ata1: mask=03 status0=00 status1=00
> ata1: devices=00
> ata1: at 0x170 irq 15 on atapci0
> uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xfca0-0xfcbf
> irq 9 at device 7.2 on pci0 usb0: <Intel 82371AB/EB (PIIX4) USB
> controller> on uhci0 usb0: USB revision 1.0
> uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> uhub0: 2 ports with 2 removable, self powered
> uhub1: Philips Semiconductors product 0x1122, class 9/0, rev
> 1.10/1.10, addr 2 uhub1: 3 ports with 3 removable, self powered
> umass0: Sony USB Memory Stick Slot, rev 1.10/1.31, addr 3
> umass0:0:0:-1: Attached to scbus0 as device 0
> intpm0: <Intel 82371AB Power management controller> port
> 0x1040-0x104f irq 9 at device 7.3 on pci0 intpm0: I/O mapped 1040
> intpm0: intr IRQ 9 enabled revision 0
> using shared irq9.
> smbus0: <System Management Bus> on intsmb0
> smb0: <SMBus general purpose I/O> on smbus0
> intpm0: PM I/O mapped 8000
> chip1: <Sony CXD3222 FireWire Host Controller> mem
> 0xfedf7c00-0xfedf7dff,0xfedf7000-0xfedf77ff irq 9 at device 8.0 on
> pci0 pcm0: <Yamaha DS-1E (YMF744)> port 0xfc8c-0xfc8f,0xfcc0-0xfcff
> mem 0xfedf8000-0xfedfffff irq 9 at device 9.0 on pci0 ds1: setmap
> (1000, 3de4), nseg=1, error=0 pcm0: ac97 codec id 0x414b4d02
> pcm0: ac97 codec features headphone, 18 bit DAC, 18 bit ADC, 5 bit
> master volume, AKM 3D Audio pcm0: ac97 primary codec extended
> features AMAP pcm: setmap 11000, 1000; 0xc9dbe000 -> 11000
> pcm: setmap 21000, 1000; 0xc9dce000 -> 21000
> pcm: setmap 31000, 1000; 0xc9dde000 -> 31000
> pcm: setmap 41000, 1000; 0xc9dee000 -> 41000
> pcm: setmap 51000, 1000; 0xc9dfe000 -> 51000
> pcm: setmap 61000, 1000; 0xc9e0e000 -> 61000
> pci0: <unknown card> (vendor=0x14f1, dev=0x2443) at 10.0 irq 9
> fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0xfc40-0xfc7f mem
> 0xfec00000-0xfecfffff,0xfedf6000-0xfedf6fff irq 9 at device 11.0 on
> pci0 fxp0: Ethernet address 08:00:46:0d:8b:a9
> bpf: fxp0 attached
> pcic-pci0: <Ricoh RL5C475 PCI-CardBus Bridge> at device 12.0 on pci0
> pcic-pci0: Legacy address set to 0x3e0
> PCI Config space:
> 00:  04751180 02100007 06070080 00020000
> 10:  00000000 020000dc 00000000 00000000
> 20:  00000000 00000000 00000000 00000000
> 30:  00000000 00000000 00000000 078001ff
> 40:  8082104d 000003e1 00000000 00000000
> 50:  00000000 00000000 00000000 00000000
> 60:  00000000 00000000 00000000 00000000
> 70:  00000000 00000000 00000000 00000000
> 80:  00020001 00000000 04630463 30000000
> 90:  00000000 00000000 00000000 00000000
> Cardbus Socket registers:
> 00:  f000ff53: f000ff53: f000e2c3: f000ff53:
> 10:  f000ff53: f000ff54: f000a1af: f000ff53:
> ExCa registers:
> 00: eb 88 d5 43 30 d2 66 f7 f3 88 d7 5a 66 3d ff 03
> 10: 00 00 fb 77 44 86 c4 c0 c8 02 08 e8 40 91 88 fe
> 20: 28 e0 8a 66 02 38 e0 72 02 88 e0 bf 05 00 c4 5e
> 30: 04 50 b4 02 cd 13 5b 73 0a 4f 74 1c 30 e4 cd 13
> Trying Read_Port at 203
> Trying Read_Port at 243
> Trying Read_Port at 283
> Trying Read_Port at 2c3
> Trying Read_Port at 303
> Trying Read_Port at 343
> Trying Read_Port at 383
> Trying Read_Port at 3c3
> isa_probe_children: disabling PnP devices
> isa_probe_children: probing non-PnP devices
> fdc0: direction bit not set
> fdc0: cmd 3 failed at out byte 1 of 3
> fdc0 failed to probe at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
> atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
> atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
> atkbd: the current kbd controller command byte 0047
> atkbd: keyboard ID 0x41ab (2)
> kbdc: RESET_KBD return code:00fa
> kbdc: RESET_KBD status:00aa
> kbd0 at atkbd0
> kbd0: atkbd0, AT 101/102 (2), config:0x1, flags:0x1d0000
> psm0: current command byte:0047
> kbdc: TEST_AUX_PORT status:0000
> kbdc: RESET_AUX return code:00fa
> kbdc: RESET_AUX status:00aa
> kbdc: RESET_AUX ID:0000
> psm: status 00 02 64
> psm: status 00 00 64
> psm: status 00 03 64
> psm: status 00 03 64
> psm: data 08 00 00
> psm: status 73 02 0a
> psm: data 08 00 00
> psm: status 00 02 64
> psm0: <PS/2 Mouse> irq 12 on atkbdc0
> psm0: model GlidePoint, device ID 0-00, 2 buttons
> psm0: config:00000000, flags:00000000, packet size:3
> psm0: syncmask:c0, syncbits:00
> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
> isa0 fb0: vga0, vga, type:VGA (5), flags:0x7007f
> fb0: port:0x3c0-0x3df, crtc:0x3d4, mem:0xa0000 0x20000
> fb0: init mode:24, bios mode:3, current mode:24
> fb0: window:0xc00b8000 size:32k gran:32k, buf:0 size:32k
> vga0: vga: WARNING: video mode switching is not fully supported on
> this adapter VGA parameters upon power-up
> 50 18 10 00 00 00 03 00 02 e7 73 4f 4f 97 52 83
> b4 1f 00 4f 0d 0e 00 00 01 e0 91 87 8f 28 1f 8f
> b5 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c
> 3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff
> VGA parameters in BIOS for mode 24
> 50 18 10 00 10 00 03 00 02 67 5f 4f 50 82 55 81
> bf 1f 00 4f 0d 0e 00 00 00 00 9c 8e 8f 28 1f 96
> b9 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c
> 3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff
> EGA/VGA parameters to be used for mode 24
> 50 18 10 00 00 00 03 00 02 e7 73 4f 4f 97 52 83
> b4 1f 00 4f 0d 0e 00 00 01 e0 91 87 8f 28 1f 8f
> b5 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c
> 3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff
> sc0: <System console> at flags 0x100 on isa0
> sc0: VGA <16 virtual consoles, flags=0x100>
> sc0: fb0, kbd0, terminal emulator: sc (syscons terminal)
> pcic0: <Intel i82365> at port 0x3e0 iomem 0xd4000 irq 10 on isa0
> pcic0: management irq 10
> stat is 33
> pccard0: <PC Card bus -- kludge version> on pcic0
> pcic1: not probed (disabled)
> sio0: irq maps: 0x1 0x11 0x1 0x1
> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
> sio0: type 16550A, console
> isa_probe_children: probing PnP devices
> BIOS Geometries:
> 0:03fefe3f 0..1022=1023 cylinders, 0..254=255 heads, 1..63=63 sectors
> 0 accounted for
> Device configuration finished.
> bpf: lo0 attached
> bpf: ppp0 attached
> new masks: bio 68c200, tty 631212, net 671212
> bpf: sl0 attached
> bpf: faith0 attached
> bpf: gif0 attached
> bpf: gif1 attached
> bpf: gif2 attached
> bpf: gif3 attached
> BRIDGE 990810, have 9 interfaces
> -- index 1  type 6 phy 0 addrl 6 addr 08.00.46.0d.8b.a9
> IPsec: Initialized Security Association Processing.
> ata0-master: success setting UDMA2 on PIIX4 chip
> Creating DISK ad0
> Creating DISK wd0
> ad0: <FUJITSU MHK2120AT/D834> ATA-5 disk at ata0-master
> ad0: 11513MB (23579136 sectors), 23392 cyls, 16 heads, 63 S/T, 512
> B/S ad0: 16 secs/int, 1 depth queue, UDMA33
> ad0: piomode=4 dmamode=2 udmamode=4 cblid=1
> ad0: 11513MB <FUJITSU MHK2120AT> [23392/16/63] at ata0-master UDMA33
> panic: rcmdlen = -1070593560 < 12, buffer too small
>
> syncing disks...
>
>
>
> CONFIGURATION FILE:
>
> barry@gate$ cat VAIO
> #
> # $FreeBSD: src/sys/i386/conf/GENERIC,v 1.246.2.20 2000/10/31
> # 23:16:07 n_hibma Exp $
>
> machine         i386
> cpu             I586_CPU
> cpu             I686_CPU
> ident           VAIO
> maxusers        64
>
> makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
>
> options         MATH_EMULATE            #Support for x87 emulation
> options         INET                    #InterNETworking
> options INET6 #IPv6 communications protocols options FFS #Berkeley
> Fast Filesystem options FFS_ROOT #FFS usable as root device [keep
> this!] options SOFTUPDATES #Enable FFS soft updates support options
> MFS #Memory Filesystem options MD_ROOT #MD is a potential root device
> options NFS #Network Filesystem options NFS_ROOT #NFS usable as root
> device, NFS required options MSDOSFS #MSDOS Filesystem options CD9660
> #ISO 9660 Filesystem options CD9660_ROOT #CD-ROM usable as root,
> CD9660 required options PROCFS #Process filesystem options COMPAT_43
> #Compatible with BSD 4.3 [KEEP THIS!] options SCSI_DELAY=15000 #Delay
> (in ms) before probing SCSI options UCONSOLE #Allow users to grab the
> console options         USERCONFIG              #boot -c editor
> options         VISUAL_USERCONFIG       #visual boot -c editor
> options         KTRACE                  #ktrace(1) support
> options         SYSVSHM                 #SYSV-style shared memory
> options         SYSVMSG                 #SYSV-style message queues
> options         SYSVSEM                 #SYSV-style semaphores
> options P1003_1B #Posix P1003_1B real-time extensions options
> _KPOSIX_PRIORITY_SCHEDULING options ICMP_BANDLIM #Rate limit bad
> replies options KBD_INSTALL_CDEV # install a CDEV entry in /dev
> options IPSEC #IP security options IPSEC_ESP #IP security (crypto;
> define w/ IPSEC) options         INVARIANT_SUPPORT
> options         INVARIANTS
> options         DDB
> options         DDB_UNATTENDED
> options         BREAK_TO_DEBUGGER
> options         BRIDGE                  #For vmware
>
> # To make an SMP kernel, the next two are needed
> #options SMP # Symmetric MultiProcessor Kernel options APIC_IO #
> #Symmetric (APIC) I/O
>
> device          isa
> device          eisa
> device          pci
>
> # Floppy drives
> device          fdc0    at isa? port IO_FD1 irq 6 drq 2
> device          fd0     at fdc0 drive 0
>
> # ATA and ATAPI devices
> device          ata
> device          atadisk                 # ATA disk drives
> device          atapicd                 # ATAPI CDROM drives
> device          atapifd                 # ATAPI floppy drives
> device          atapist                 # ATAPI tape drives
> options         ATA_STATIC_ID           #Static device numbering
> options         ATA_ENABLE_ATAPI_DMA    #Enable DMA on ATAPI devices
>
> # SCSI peripherals (needed for USB umass driver)
> device          scbus           # SCSI bus (required)
> device          da              # Direct Access (disks)
> #device         sa              # Sequential Access (tape etc)
> #device         cd              # CD
> device pass # Passthrough device (direct SCSI access)
>
> # atkbdc0 controls both the keyboard and the PS/2 mouse
> device          atkbdc0 at isa? port IO_KBD
> device          atkbd0  at atkbdc? irq 1 flags 0x1
> device          psm0    at atkbdc? irq 12
>
> device          vga0    at isa?
>
> # splash screen/screen saver
> pseudo-device   splash
>
> # syscons is the default console driver, resembling an SCO console
> device          sc0     at isa? flags 0x100
> options         SC_PIXEL_MODE
> options         SC_NORM_ATTR="(FG_LIGHTGREY|BG_BLACK)"
> options         SC_NORM_REV_ATTR="(FG_BLACK|BG_LIGHTGREY)"
> options         SC_KERNEL_CONS_ATTR="(FG_WHITE|BG_RED)"
> options         SC_KERNEL_CONS_REV_ATTR="(FG_RED|BG_BLACK)"
>
> # Floating point support - do not disable.
> device          npx0    at nexus? port IO_NPX irq 13
>
> # Power management support (see LINT for more options)
> device apm0 at nexus? flags 0x20 # Advanced Power Management
>
> # PCCARD (PCMCIA) support
> device          card
> device          pcic0   at isa? irq 10 port 0x3e0 iomem 0xd4000
> device pcic1 at isa? irq 0 port 0x3e2 iomem 0xd4000 disable
>
> # Serial (COM) ports
> device          sio0    at isa? port IO_COM1 flags 0x10 irq 4
> #device         sio1    at isa? port IO_COM2 irq 3
>
> device fxp # Intel EtherExpress PRO/100B (82557, 82558) device wi
> device an
>
> # Pseudo devices - the number indicates how many units to allocated.
> pseudo-device   loop            # Network loopback
> pseudo-device   ether           # Ethernet support
> pseudo-device   sl      1       # Kernel SLIP
> pseudo-device   ppp     1       # Kernel PPP
> pseudo-device   tun             # Packet tunnel.
> pseudo-device   pty             # Pseudo-ttys (telnet etc)
> pseudo-device   md              # Memory "disks"
> pseudo-device   gif     4       # IPv6 and IPv4 tunneling
> pseudo-device   faith   1       # IPv6-to-IPv4 relaying (translation)
>
> # The `bpf' pseudo-device enables the Berkeley Packet Filter.
> # Be aware of the administrative consequences of enabling this!
> pseudo-device   bpf             #Berkeley packet filter
>
> # USB support
> device          uhci            # UHCI PCI->USB interface
> device          ohci            # OHCI PCI->USB interface
> device          usb             # USB Bus (required)
> device          ugen            # Generic
> device          uhid            # "Human Interface Devices"
> device          ukbd            # Keyboard
> device          ulpt            # Printer
> device umass # Disks/Mass storage - Requires scbus and da device ums
> # Mouse device          uscanner        # Scanners
>
> #
> # SMB bus
> #
> # System Management Bus support provided by the 'smbus' device.
> #
> # Supported devices:
> # smb   standard io
> #
> # Supported interfaces:
> # iicsmb I2C to SMB bridge with any iicbus interface
> # bktr  brooktree848 I2C hardware interface
> # intpm Intel PIIX4 Power Management Unit
> # alpm  Acer Aladdin-IV/V/Pro2 Power Management Unit
> #
> device smbus # Bus support, required for smb below. device intpm
> device alpm
>
> device          smb
>
> device iicbus #Bus support, required for ic/iic/iicsmb below. device
> iicbb device          ic
> device          iic
> device          iicsmb          # smb over i2c bridge
>
> # pcm: Luigi's sound driver
> device          pcm
>
>
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