11 Jan
                
                    2013
                
            
            
                11 Jan
                
                '13
                
            
            
            
        
    
                5:24 p.m.
            
        On Thu, Jan 10, 2013 at 05:06:11PM +0100, Lars-Peter Clausen wrote:
Virtual switches are similar to virtual MUX controls. It does not have a representation in the actual hardware but allows to control the DAPM routing by enabling or disabling a input path into the mixer. This is useful if we want to present a way to the user to for example mute a path despite the absence of a separate mute control in hardware.
So, following IRC discussion it seems like the main issue here is that the changelog is the main issue here - this is actually for moving the writes done when controlling a DAPM mixer input rather than adding new widgets to control power on/off of paths.