[alsa-devel] [PATCH] pcm: rate: Add capability to pass configuration node to plugins

[Alan Young]

It is useful for the converter used by a rate plugin to be capable of 
receiving configuration. This patch enables the "converter" node of the 
configuration of a "type rate" plugin to be specified as a compound and 
passed to open func of the converter plugin.

The SND_PCM_RATE_PLUGIN_VERSION is incremented and 
SND_PCM_RATE_PLUGIN_VERSION_CONFIGURE is defined so that a converter 
plugin can test whether it should expect the extra parameter on its open 
func.

Alan.

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