On Thursday 25 June 2009 12:47:54 ext shariff wrote:
Hi all,
Iam working on OMAP3 based custom board. On our board, GSM digitalaudio path is connected to McBSP3 and TWL4030 digital audio path is connected to McBSP2.
I want to implement a module that transfers GSM audio data and store audio data into some buffer and redirect it to TWL4030 audio codec through McBSP2.
I question is how can I implement this in ASoC?
I studied ASoC framework, but I am unable to understand where to implement my stuff.
I think the following should do something like that:
arecord -Dplughw:0.0 | aplay -Dplughw:0.1 or arecord -Dhw:0.0 | aplay -Dhw:0.1
I don't know what is the order of the PCMs with the twl4030 codec on your board, this is with the assumption: plughw:0.0 - Voice PCM (McBSP3) plughw:0.1 - Digital audio PCM (McBSP2)
You might want to try the --rate parameter for arecord to use 16KHz recording from the Voice interface..
Regards, Shariff _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel