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No recording from DMIC on iMX6 Kitkat 4.4.2

Question asked by Krzysztof Szałach on May 7, 2015
Latest reply on May 7, 2015 by Krzysztof Szałach

Hi. We're trying to figure out why we cannot record audio. We've connected MP34DT01 microphone to proper pins of module (dmic_clk, dmic_dta) but we don't receive any data from mic. What we'ce observer is that there is no clock wave on dmic_clk, which we think should be generated at least when we start recording. Is there anything we have to switch on in kernel or in other place to make it working?