At Fri, 25 Apr 2008 11:30:40 +0200, Daniel Mack wrote: > > On Fri, Apr 25, 2008 at 11:22:10AM +0200, Takashi Iwai wrote: > > > Add more routing controls to AIC3x chips to allow things like routing > > > the left PGA input to right line out. > > > > > > Signed-off-by: Daniel Mack <daniel@xxxxxxxx> > > > > It should be implemented rather with stereo mixer switches in > > general... > > Not necessarily as left and right inputs of let's say the line input can > be used for entierly different things. Same is counts for the outputs. > This is the case in my setup and I guess for mobile phone (what the chip > is made for) there will be more cases. > > Controlling them with stereo mixers would just cause more confusion in > the already over-engineered chip, I fear. Well, for such a complex system, switches don't suite well as the end point representation. A switch is the easiest way to implement in a driver, but you'll have a mess in the end if there are too many switches. We can hide these in an higher abstraction layer (e.g. alsa-lib mixer interface) if it were implemented. Otherwise, think about a more reasonable (can be less-flexible though) setup, e.g. using enum controls to represent the hardware configuration intead of combination of lots of switches. Honestly, in the case of existing asoc drivers, I don't care much, and likely I'll let it be. But, this is an issue we need to reconsider for the future development. thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
