[alsa-devel] WM9712 Not Giving output

Nitin Mahajan nitinm76 at yahoo.com
Wed Aug 6 05:06:06 CEST 2008


--- On Mon, 4/8/08, Mark Brown <broonie at opensource.wolfsonmicro.com> wrote:

> From: Mark Brown <broonie at opensource.wolfsonmicro.com>
> Subject: Re: [alsa-devel] WM9712 Not Giving output
> To: "Nitin Mahajan" <nitinm76 at yahoo.com>
> Cc: alsa-devel at alsa-project.org
> Date: Monday, 4 August, 2008, 5:42 PM
> On Sat, Aug 02, 2008 at 02:46:17AM -0700, Nitin Mahajan
> wrote:
> > I checked the mixer configuration.The registers 0x18h
> and 0x04h were mute at the time of initiating DMA for
> playback.
> > I did set both registers with 0x7fff. From mixer point
> of view, If I am using an headphone, are these registers
> enough? I am still not able to hear anything.
> Please provide alsactl output as requested - any
> configuration should be
> done via the ALSA mixer rather than register writes.  In
> the case of
> register 0x18 setting 0x7fff will set a gain of -34.5dB on
> each channel
> which may be too low, depending on your input.

Here is the mixer-config file got through 'alsactl'. Could you please guide me which controls to set with what values using amixer, for playback through Headphone and Recording?



> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel at alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel

Send instant messages to your online friends http://uk.messenger.yahoo.com 
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: mixer-config.txt
Url: http://mailman.alsa-project.org/pipermail/alsa-devel/attachments/20080805/99c1b7e7/attachment.txt 

More information about the Alsa-devel mailing list