On Friday 23 November 2007 20:36:32 Jaroslav Kysela wrote: > On Fri, 23 Nov 2007, Takashi Iwai wrote: > > > At Mon, 19 Nov 2007 12:13:28 +0100, > > I wrote: > > > > > > > > > If not, then it is better to remove it/remame to VolumeKnob > > > > > > > > > > Agreed. I'd like to take a safer way if you don't insist... > > > > Great, it is probably the best to have a virtual master volume. > > > > Just one question, it will be probably enabled for devices that don't have a > > > > master volume (or have it broken like the STAC), right?, > > > > And when you expect it to be merged? > > > > > > Hopefully will be posted in this week after a small brush up. > > > > OK, here is a series of the patch I promised. > > > > The first one is the patch to add virtual master controls. > > > > === > > > > [PATCH] Add virtual master control > > > > This patch adds the routines to create virtual master controls. > > A virtual master control can have multiple slave controls that > > are supposed to be identical type. The master volume will add the > > master attenuation and the master switch will add the master mute > > switch. > > > > --- > > I'm really not sure if I like to see such extensions in kernel. We have > now user control elements and a small daemon written in C or python will > do exactly same job and will be more flexible. > > Jaroslav Hi, Well, first big thanks for those patches. Secondary I strongly disagree that the above can be implemented in userspace easily. Sure you can have a program that adjusts the volume of all outputs, and creates a virtual userspace control, but the change in volume of outputs will be visible to userspace. For example moving the master volume will move the front/surround/LFE/.... sliders, and it is no good. What this patch does, it actually modifies the code for those 'slave' amps, so the master volume is taken in account. I will test it now on my system. I hope this gets merged, Best regards, Maxim Levitsky _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
