External PCM plugin SDK

[Takashi Iwai <tiwai@suse.de>]

Hi,

I now commited a patch to add the external PCM plugin SDK to
alsa-lib.  This allows you to create ALSA PCM plugin outside the
alsa-lib tree.  It's still a draft version, and currently only the I/O
plugin (e.g. for implementation of user-space driver) is provided.
The filter-type plugin SDK (e.g. for effects) and the control plugin
SDK will follow later.

No documentation yet.  Look at the code :)

Example I/O plugins are found in alsa-plugins tree.  So far, two
plugins, OSS and JACK plugins.  The former one is the plugin to
emulate ALSA API with the OSS driver.  The latter is almost identical
with the one in alsa-lib/src/pcm/ext.

I think this SDK can be used for better implementaion of BT-SCO and
FireWire.

Note that the sync of CVS tree on sourceforge is often delayed.
If you don't see it on anon tree, please wait for a while...


Takashi


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