>
>>>> + SOC_SINGLE("Digital Loopback Switch adc to dac", WM8940_COMPANDINGCTL,
>>>> + 0, 1, 0),
>
>>> This should be called Digital Sidetone Switch and probably ought to be a
>>> DAPM control - there's an ADC to DAC route.
>
>> I'll take your word for it!
>
> If you switch the ADC to the DAC then you've got an audio path between
> them.
Hi Mark,
I'm having some trouble getting my head around how to actually specify the audio
route for this Sidetone route.
As far as I can tell you can't specify the following,
{"DAC", "Digtal Sidetone Switch", "ADC"}
As in snd_soc_dapm_add_route only mux, switch and mixer controls can take
a control element.
I can find plenty of examples for cases where this path routes through a mixer
or mux, but in this simple case (it's either connected or not and no
volume controls are on that path) what do I do?
Nearest I can currently come up with is to insert a mux with only one option...
Thanks,
Jonathan
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