Re: [alsa-devel] ASoC: wm9712: Microphone doesn't work, "Capture Volume" inverted

On Thu, Apr 26, 2012 at 03:49:02PM +0200, Christoph Fritz wrote:

I added some printks into ac97_write() "sound/soc/codecs/wm9712.c" and when I do for example change "Item: Mic Boost [dB gain: 20.00] " I get this:

write eh 8000 [6808] write eh 8000 [6888]

but when I try to change "Mic Select Source" or "Item: Differential Source", nothing happens here.

Odd. Can you see the write actually happening on the bus?

Why is wm9712_enum[0] never used?

I rather imagine it's just a simple case of the feature having being missed when the driver was implemented.

Is "SOC_ENUM_SINGLE(0x5c, 8, 2, wm9712_diff_sel)," correct? Because of the ">> 1" shift in ac97_write() ?

What makes you think it might not be correct?