Josef Söntgen 8a34d21577 dde_bsd: add recording support to audio driver ... The driver is now able to record audio samples. In contrast to playback it has to be enabled explicitly by setting the configuration attribute 'recording' to 'yes'. Playback is by default enabled but may be disabled by setting 'playback' to 'no'. Furthermore it is now possible to configure the mixer from the configuration. For now, the interface used by vanilla OpenBSD is just exported. The following snippet shows how to enable and configure recording on an Thinkpad X220 where the headset rather than the internal mic is used as recording source: ! <start name="audio_out_drv"> ! <resource name="RAM" quantum="8M"/> ! <provides> ! <service name="Audio_out"/> ! <service name="Audio_in"/> ! </provides> ! <config recording="yes"> ! <mixer field="outputs.master" value="255"/> ! <mixer field="record.adc-0:1_source" value="sel2"/> ! <mixer field="record.adc-0:1" value="255"/> ! </config> ! </start> In addition to selecting the recording source the playback as well as the recording volume are set to 255 (maximum). Information about the available mixers and settings in general may be obtained by setting the 'verbose' to 'yes' in the config node. Issue #1644.		2015-08-21 10:59:46 +02:00
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audio.h	dde_bsd: add recording support to audio driver	2015-08-21 10:59:46 +02:00