Hi Takashi, On Mon, Sep 04, 2006 at 11:58:57AM +0200, Takashi Iwai wrote: > > From table 17 (page 35) of the AK5365 specs I think that IPGA and DATT > > are only separate units inside the chip, but should be treated as one > > continuous scale for the purpose of the driver. The table looks like > > the input volume can be adjusted in steps from "mute" to +12dB. Why > > would we want two controls here? > > Actually they are treated independently in the chip. IPGA works like > a preamp, and the total volume is IPGA + DATT. Even if you set a > value to IPGA with MSB, say 0x82, DATT won't be changed and the old > value is kept. And it's vice versa - if you set 0x02 later, IPGA will > stay as 0x82. This is so, at least with AK4524 and AK4528. Possibly > this was changed on AK5365, though... Did you have a look at table 17? I think the old behaviour was better. > Hm, there is no "PCM Capture Gain Capture", maybe "PCM Capture Gain > Volume"? It's IPGA. I will send the amixer output this evening when I get back home. All the best, Jochen -- http://www.maths.warwick.ac.uk/~voss/
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