On Tue, Mar 24, 2009 at 09:59:31PM +0900, Joonyoung Shim wrote: > Adds DAPMs for VDL(voice down link) path. > To support VDL path, we have to change DAPM of outputs(Earpiece, > PreDrive Left/Right, Headset Left/Right, Carkit Left/Right) from mux to > mixer, also codec mode from option1 to option2. In this specific case where there is no DAI interfacing with the voice DAC you could just not tell DAPM it's a DAC - it doesn't buy anything since the only thing that DACs do at the minute is stream Alternatively, if this is for something like playback of an audio stream take a look at how the Neo1973 driver represents the audio downlink from the bluetooth chipset. A dummy audio interface is provided to user space which user space can set up as normal through ALSA, just skipping actually transferring any data. This is hacky but has the advantage of keeping the power management. There's a sample user space application driving this here: http://opensource.wolfsonmicro.com/~gg/bluetooth-pcm/bluetooth_pcm.c _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
