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ALSA for built in ADC on DM365?

Hi,

I have a custom design based around the DM365 where I hooked up a few of the DM365 built-in analog to digital converter channels to monitor a few voltage rails on my board.  I don't see (maybe I missed it) anything like an explicit ADC driver in the kernel tree for the builtin davinci adc, however it occurs to me that ALSA might be what I should use?  Is there support already there for reading samples off the adc via the alsa subsystem and is there any documentation specific to davinci out there?  Other recommendations or roll my own driver?

Thanks for any info you all might be able to provide.

Kevin