[alsa-devel] Sound Card driver for audio codec, mux and dsp.

[Diego Sueiro]

Hi there,

Looking at documentation and some code I realized that I need to
follow Alsa SoC layer implementation.

It already has an ASoC driver for sgtl5000 and imx platform.
So, I want to add more two devices, an audio mux and an audio dsp. How
can I accomplish this?


Abraços,

--
*dS
Diego Sueiro

Administrador do Portal Embarcados
www.embarcados.com.br

Engenheiro de Controle e Automação
UNIVERSIDADE FEDERAL DE ITAJUBÀ

/*long live rock 'n roll*/


On Wed, Jul 17, 2013 at 10:17 AM, Diego Sueiro <diego.sueiro at gmail.com> wrote:
> Hi there,
>
> I need to develop a solution to expose to userspace a single sound
> card with mixer controls for:
>
> Audio codec : sgtl5000
> Audio mux: used to select an audio source on sgtl5000 LINE_IN.
> Audio dsp :sta309a
>
> How can I implement this drivers? Should I have to create a sound-card
> driver which is going to register and control the other drivers
> (codec, mux, dsp)?
>
> Is there some device driver or tutorial guide that I can use as an example?
>
> I'm using the kernel 3.0.15 from Freescale [1].
>
>
> [1] - http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/log/?h=imx_3.0.15_android
>
> Kind Regards,
>
> --
> *dS
> Diego Sueiro