Re: [gentoo-user] Curiosity...

Volker Armin Hemmann <volkerarmin@××××××××××.com> [11-01-29 17:56]:
> On Saturday 29 January 2011 17:34:18 meino.cramer@×××.de wrote:
> > Volker Armin Hemmann <volkerarmin@××××××××××.com> [11-01-29 16:39]:
> > > On Saturday 29 January 2011 15:18:10 meino.cramer@×××.de wrote:
> > > > Hi,
> > > >
> > > > when listing my hardware with lshw I find some stuff build
> > > > into my ASUS Crosshair IV Formula, which I seem not to use
> > > > and I like to know, for what it is good for:
> > > >
> > > > These are excerpts from the output of lshw:
> > > >         *-serial UNCLAIMED
> > > >
> > > >              description: SMBus
> > > >              product: SBx00 SMBus Controller
> > > >              vendor: ATI Technologies Inc
> > > >              physical id: 14
> > > >              bus info: pci@0000:00:14.0
> > > >              version: 41
> > > >              width: 32 bits
> > > >              clock: 66MHz
> > > >              configuration: latency=0
> > >
> > > sensors, and spd-eprom are accessed this way.
> > >
> > > > and
> > > >
> > > >         *-isa
> > > >
> > > >              description: ISA bridge
> > > >              product: SB700/SB800 LPC host controller
> > > >              vendor: ATI Technologies Inc
> > > >              physical id: 14.3
> > > >              bus info: pci@0000:00:14.3
> > > >              version: 40
> > > >              width: 32 bits
> > > >              clock: 66MHz
> > > >              capabilities: isa bus_master
> > > >              configuration: latency=0
> > >
> > > today's incarnation is called 'lpc'. Your sensor chip is probably
> > > accessed through this. Also connectiopn sensor/superio-chipset.
> > >
> > > > and
> > > >
> > > >            *-multimedia
> > > >
> > > >                 description: Audio device
> > > >                 product: GF108 High Definition Audio
> > > >                 Controller
> > > >                 vendor: nVidia Corporation
> > > >                 physical id: 0.1
> > > >                 bus info: pci@0000:08:00.1
> > > >                 version: a1
> > > >                 width: 32 bits
> > > >                 clock: 33MHz
> > > >                 capabilities: pm msi pciexpress
> > > >                 bus_master cap_list
> > > >                 configuration: driver=HDA Intel
> > > >                 latency=0
> > > >                 resources: irq:25
> > > >                 memory:fe97c000-fe97ffff
> > > >
> > > > (I have a MSI GT430 (nvidia) card and onboard audio:
> > > >         *-multimedia
> > > >
> > > >              description: Audio device
> > > >              product: SBx00 Azalia (Intel HDA)
> > > >              vendor: ATI Technologies Inc
> > > >              physical id: 14.2
> > > >              bus info: pci@0000:00:14.2
> > > >              version: 40
> > > >              width: 64 bits
> > > >              clock: 33MHz
> > > >              capabilities: pm bus_master cap_list
> > > >              configuration: driver=HDA Intel latency=64
> > > >              resources: irq:16 memory:fcaf8000-fcafbfff
> > > >
> > > > ).
> > > >
> > > >
> > > >
> > > > lspci -k of those device/chips/whatever does say for the nvidia
> > > > audio:
> > > >
> > > > 08:00.1 Audio device: nVidia Corporation GF108 High Definition Audio
> > > > Controller (rev a1) Subsystem: Micro-Star International Co., Ltd.
> > > > Device 2304
> > > >
> > > > 	Kernel driver in use: HDA Intel
> > > > 	Kernel modules: snd-hda-intel
> > > >
> > > > but...for what reason there is an audio device in my graphics card?
> > > > Sounds to me like a bicycle with onboard toaster... ;)
> > >
> > > hdmi.
> > > Because hdmi is able to transport sound. Also look up the DRM mess.
> > >
> > > > for the smbus thingy as for the ISA-bridge there no additional info.
> > > > For what reason there is an ISA bridge on a board which skipped
> > > > floppy controller and IDE???
> > >
> > > yes.
> > >
> > > > How can I make what use of it?
> > >
> > > you probably already do.
> >
> > How do you define "probably" ? :)
>
> well, your board is able to boot. So the bios is able to access spdrom to read
> the memory settings. This is done via smbus.
> If you use sensors, you are probably using isa/lipc bus to access the chip.
> And even if you don't. Do you have a ps/2 keyboard? The keyboard controller
> sits in the same superio chip as the sensors.
>

Ah! I see...but I would think, that the driver for the kbd and/or the
access to the sensors would led to a "Kernel driver in use:"- or
"Kernel modules:"-entry when using lspci -k, where the SMBUS-thingy
is listed. But nothing...

?