volkerarmin at googlemail
Sep 13, 2009, 2:07 AM
Post #2 of 2
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On Sonntag 13 September 2009, Frank Peters wrote:
> After configuring and compiling the new Linux kernel 2.6.31, my
> sound system and sound programs no longer functioned. I traced
> this to one configuration variable under the Alsa sound devices:
>
> SND_PCM_OSS_PLUGINS
>
> This variable represents a new option for the Alsa OSS API, and
> the default value seems to be "No." But I assumed that setting
> it to "Yes" would not make much difference, but it certainly did.
>
> I really don't know what this option is all about (unless one
> religiously follows all the minutiae of kernel development, Linux
> can be full of surprises.) The documentation says:
>
> " If you disable this option, the ALSA's OSS PCM API will not
> support conversion of channels, formats and rates. It will
> behave like most of new OSS/Free drivers in 2.4/2.6 kernels."
>
> So, apparently the improvement breaks all sound -- at least it
> did for me.
>
> If anyone has had a different experience, please report. The new
> option doesn't seem too thrilling. I'd rather do all such conversions
> using software in user space.
>
> Frank Peters
>
afaik it makes it possible to do exactly that - for oss using apps.
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