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Date: Thu, 10 Jul 2014 02:10:32 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: "Russell L. Carter" <rcarter@pinyon.org>, freebsd-multimedia@freebsd.org
Subject: Re: conflict between kernel sound and oss
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On 07/09/14 23:39, Russell L. Carter wrote:
> Greetings,
>
> I'm attempting to experiment with audio/oss.  My audio device is a USB
> Behringer 202, which works fine with snd_uaudio.
>
> I've removed "device sound" from my kernel, but sound.ko and
> snd_uaudio.ko still get built, and even though I have set:
>
> snd_driver_load="NO"
> snd_uaudio_load="NO"
>
> the kernel still loads both on boot.  I tried renaming them,
> but the kernel still associates those modules with the device.
> So when for, for example, I unplug the device and then plug it
> back in, I get
>
> ugen1.8: <vendor 0x1a40> at usbus1
> uhub10: <vendor 0x1a40 USB 2.0 Hub, class 9/0, rev 2.00/1.11, addr 8> on
> usbus1
> uhub10: 4 ports with 4 removable, self powered
> ugen1.9: <Burr-Brown from TI> at usbus1
> KLD snd_uaudio.ko: depends on sound - not available or version mismatch
> linker_load_file: Unsupported file type
> uhid0: <Burr-Brown from TI USB Audio CODEC, class 0/0, rev 1.10/1.00,
> addr 9> on usbus1
>
> And osstest doesn't find the device.  osscore does load fine, and
> I've observed that it won't load if sound.ko is already loaded.
>
> This is a week old -current.
>
> Any hints on how to proceed appreciated.
>

Hi,

It is devd which automatically loads the snd_uaudio.ko and its dependencies.

--HPS