On Tue, 12 Dec 2017 10:49:12 +0100, Kailang wrote: > > > > > -----Original Message----- > > From: Takashi Iwai [mailto:tiwai@xxxxxxx] > > Sent: Tuesday, December 12, 2017 5:10 PM > > To: Kailang > > Cc: (alsa-devel@xxxxxxxxxxxxxxxx) > > Subject: Re: 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? > > Because the EQ support on DAC 0x02. If speaker muted, EQ will disable. > > > > > 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). > > static void alc274_dell_fixup_dac_bind(struct hda_codec *codec, > const struct hda_fixup *fix, > int action) > { > struct sigmatel_spec *spec = codec->spec; > static hda_nid_t preferred_pairs[] = { > 0x21, 0x03, 0x1b, 0x03, 0x16, 0x02, > 0 > }; > > if (action != HDA_FIXUP_ACT_PRE_PROBE) > return; > > spec->gen.preferred_dacs = preferred_pairs; > } > > I use upper. It was assigned to 0x03 for 0x1b. > But could I set it to default for ALC274? > Speaker always use DAC 0x02. Other outs use DAC 0x03. If it's a restriction of the codec, it should be OK to assign that table always, yes. But please put the proper comment what it does and why it's necessary. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
