Re: [alsa-devel] Verb table for group section

On Tue, 12 Dec 2017 09:30:18 +0100, Kailang wrote:

Hi Takashi,

Attach file was ALC274 in our ENG test machine.

0x16 0x90170110 => speaker 0x19 0x01a1913c => headset mic 0x1a 0x01a1913d => headphone MIC 0x1b 0x04011020 => Line out 0x21 0x0421102F => Headphone

How could i set verb for group and sequence that Line out and Headphone will use DAC 0x03?

What is the exact restriction? 0x1b and 0x21 must use 0x03 while 0x16 to 0x02?

If yes, try to define spec->gen.preferred_dacs[]. It's a list of paired NIDs to define the preferred DAC for each pin. For example,

{ 0x1b, 0x03, 0x21, 0x03, 0x16, 0x02, 0 }

(don't forget the zero-termination).

Takashi