At Tue, 17 Feb 2009 15:06:38 -0600, Mario Limonciello wrote: > > Hi Takashi: > > Takashi Iwai wrote: > > At Tue, 17 Feb 2009 13:27:12 -0600, > Mario Limonciello wrote: > > Ah, OK, then the mic jack is connected to the surround DAC. > But don't you have Center and LFE? > > There aren't mixers for Center or LFE at all. Again going back to my feelings > about mixer names, for the purposes of a laptop I think providing a knob > called Center or another called LFE just adds to the confusion. Right. Though, "Front", "Surround", "Center" and "LFE" are basically for logical channels, not the physical I/O volumes. So, their meanings don't conflict conceptually. However, in the case of laptop, the mapping between the channel and the phyiscal I/O is unclear, which causes confusion. > And any control of speaker volume? > > Speaker volume is handled by the combination of Master, PCM, and Front > mixers. The headphone mixer has no bearing on the volume of the speakers. OK, that's a good news at least. > And exactly this is another point why I feel the necessity of > cleanup. If the feature isn't needed, we should get rid of it. Or, > implement in a better form. > > If I was to put a vote towards this, I think attempting to support 6 channel > analog in the mobile space is a feature that needs to go. It causes confusion > and complicates the code. Yep. > One more another problem is that this setup thingy isn't described > at all, or pretty hard to guess from the mixer control. There are > knobs, but you don't know the combination. > > I think knobs, switches, do-hickeys, etc are great to have when they serve an > explicit purpose. I look at the mixers being presented to me, and I've no > idea what > > "Mono Mux" is there for, or why I've got several "Digital Input Source" > areas. This is another area that must be cleaned up, yes. > This must be included. Check commit > 8bb0ac5573ff0879fef511e1a80a4a4db0316daa > in sound git tree. > > I suppose i've got some confusion for when these commits are showing up on > http://git.alsa-project.org/?p=alsa-kernel.git;a=history;f=sound/pci/hda/ > patch_sigmatel.c;h=3c84817ccd2e0d4bd1eee4f2882047ae84165e10;hb=HEAD > My understanding was that the tree alsa-kernel tree was merged into the > alsa-driver and alsa-kmirror trees on a regular basis. I have been operating > off of web snapshots of alsa-driver from http://www.alsa-project.org/snapshot/ > since I can't do GIT internally here, but I'm not seeing the patch show up in > alsa-driver there. The tree I'm maintaining, sound git tree, is not on alsa-project.org. It's found on kernel.org, git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git and the snapshot tarball is ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz The above tree is used as a reference tree to the linux-next. Some other information is found in $LINUX/Documentation/sound/alsa/HD-Audio.txt in the recent kernel tree. thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
