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