The default ControlInfo constructor allows partially initialising the
min/max/def values. Uninitialised values are assigned to 0 by default.
This implicit initialisation makes it impossible to distinguish between
an uninitialised and an explicitly 0-initialised ControlValue.
Default construct the ControlValue in the ControlInfo default contructor to
explicitly represent uninitialised values by the ControlTypeNone type.
Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
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