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2019-03-01Add ability to route audio between audio pathsMark Farrugia1-0/+27
Configfs interface for adding 'routes' is added, and allows two audio paths to chain together particular inputs/outputs, allowing for multistage audio driver handling. A particular use-case is that of an ADSP driver. We can feed in audio to it, and capture the processed, and/or mixed, audio at it's output, and direct to another audio path driver, such as the UNICENS audio driver. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-03-01Move sysfs functionality to sysfs.cMark Farrugia1-0/+174
Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>