[alsa-devel] ALSA driver issue with the ssm2602.c

Bishop, Mark Mark.Bishop at cooperindustries.com
Fri May 4 19:56:46 CEST 2012

> -----Original Message-----
> From: alsa-devel-bounces at alsa-project.org [mailto:alsa-devel-
> bounces at alsa-project.org] On Behalf Of Bishop, Mark
> Sent: Thursday, May 03, 2012 3:31 PM
> To: alsa-devel at alsa-project.org
> Subject: [alsa-devel] ALSA driver issue with the ssm2602.c
> When I enable the 'Output Mixer HiFi' using amixer it also powers up
> the
> Mic input on this codec.  I believe this is incorrect.  I would like
> modify the driver to fix it but am having issues with the ALSA
> structures in the driver.
> Would I be off if I attempt to make my changes in the
> snd_soc_dapm_route
> structures?  I am unsure how everything is hooked together in all
> structs{}.

Where in ALSA are the simple controls for the codecs created?  As an
example, on this ssm2602 I am looking for the 'Master' simple control
that I would modify in amixer, but these are the only two 'Master'
labels in ssm2602.c:

SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V,
        0, 127, 0, ssm260x_outmix_tlv),
SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V,
        7, 1, 0),

root:/> amixer |grep  Master
Simple mixer control 'Master',0
Simple mixer control 'Master Playback ZC',0

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