if you look at cs4382 datasheet , it has three modes which can double or quad the speed
for wm8775 which does not have any boost for mic, you have to ask the author who add support of mic line in switch since the datasheet does not mention any usage of input pins as mic
did your sb0410 have these two chips ?
ADC: WM8775EDS (4 Channel)
DAC: CS4382
if you look at cs4382 datasheet , it has three modes which can double or quad the speed
for wm8775 which does not have any boost for mic, you have to ask the author who add support of mic line in switch since the datasheet does not mention any usage of input pins as mic
https:/ /bugzilla. kernel. org/enter_ bug.cgi? product= Drivers
you have to file upstream bug for overrun when recording using arecord