Re: [alsa-devel] ASoC: TWL4030 driver support multi channel playback
2009/6/2 Mark Brown broonie@opensource.wolfsonmicro.com
On Tue, Jun 02, 2009 at 03:24:11PM +0530, Naveen Krishna Ch wrote:
I am done with the entire back porting of ASoC.
I can see the dapm widgets getting ON/OFF and codec registers being
changed.
But, there is no audio out. Am i missing somthing
A direct aplay should play the audio on the headset, right?
I am not familiar with the TWL4030, you should ask these questions on the list.
I hit reply (Instead of replyall) Sorry,
As a first step I would check that there is data being transferred over the digital link to the CODEC, then look at the audio routing to ensure that the signal is routed to the output.
Thanks for suggestions..
On Tuesday 02 June 2009 13:02:38 ext Naveen Krishna Ch wrote:
2009/6/2 Mark Brown broonie@opensource.wolfsonmicro.com
On Tue, Jun 02, 2009 at 03:24:11PM +0530, Naveen Krishna Ch wrote:
I am done with the entire back porting of ASoC.
I can see the dapm widgets getting ON/OFF and codec registers being
changed.
But, there is no audio out. Am i missing somthing
A direct aplay should play the audio on the headset, right?
By default the headset outputs should work (AudioL2 and AudioR2 is routed to the output). Try with the following: aplay -f dat /dev/urandom If there is no noise, than from another terminal try to play with the alsa mixers...
As a first step I would check that there is data being transferred over the digital link to the CODEC, then look at the audio routing to ensure that the signal is routed to the output.
Thanks for suggestions..
If aplay exits with timeout, than it means that the clocks are not running. You can check the HW/SW pointers if they are moving while the playback is running: cat /proc/asound/card0/pcm0p/sub0/status
participants (2)
-
Naveen Krishna Ch -
Peter Ujfalusi