From owner-freebsd-multimedia@FreeBSD.ORG  Thu Nov 13 11:54:15 2008
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Date: Thu, 13 Nov 2008 13:54:13 +0200
From: Alexander Motin <mav@FreeBSD.org>
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To: Andriy Gapon <avg@icyb.net.ua>
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Cc: freebsd-multimedia@FreeBSD.org
Subject: Re: Intel 82801I hda, STAC9271D codec: problem(s)
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Andriy Gapon wrote:
> Just in case: in Linux code I see that they route 3 possible inputs to
> three different ADCs (nids 7,8,9) and then provide three different
> volume controls:
> http://lxr.linux.no/linux+v2.6.27.5/sound/pci/hda/patch_sigmatel.c#L891
> Maybe this could be useful for mixing together different inputs.
> Personally I don't have any need for this.

Using device.hints you can do the same - route different inputs to the
different ADCs. It will give you several PCM devices with independent
controls. Driver does not implement any mixing/switching for this case.
Now it supports only real hardware mixing/switching.

-- 
Alexander Motin