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Date: Mon, 17 Oct 2011 20:25:43 -0400
Message-ID: <CA+czFiBB0NMMhHP-TLOwr6J2BmvaSaED9o7TvyeyZBmo2=2kUw@mail.gmail.com>
Subject: Re: [gentoo-user] Re: Which sound codecs do I need?
From: Michael Mol <mikemol@gmail.com>
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On Mon, Oct 17, 2011 at 5:08 PM, Walter Dnes <waltdnes@waltdnes.org> wrote:
> On Wed, Oct 12, 2011 at 10:52:54PM -0500, Dale wrote
>
>> Or lspci -k would tell what driver the CD was using, if sound worked
>> which I bet it did.
>
> =C2=A0That tells me which *DRIVER* is in use (so does "lspci -v" for that
> matter). =C2=A0It does *NOT* tell me the *AUDIO CODEC*. =C2=A0"lspci -k" =
shows...
>
> 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Con=
troller (rev 02)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0Subsystem: Dell Device 020d
> =C2=A0 =C2=A0 =C2=A0 =C2=A0Kernel driver in use: HDA Intel

Yeah, the intel_hda system is pretty funky. My understanding is that
the API is essentially a programmable plugboard connecting the various
DSPs on the chip, and that the "codec" is a mapping of which pins
connect to which.

Kinda neat, actually. You'd think someone clever would try expressing
that interface more intuitively to the user.

--=20
:wq