Widgets:
This mainly specifies audio off-codec DAPM widgets.
Each entry is a pair of strings in DT:
"template-wname", "user-supplied-wname"
The “template-wname” being the template widget name and currently includes:
“Microphone”, “Line”, “Headphone” and “Speaker”.
The “user-supplied-wname” being the user specified widget name.
For instance:
simple-audio-widgets =
“Microphone”, “Microphone Jack”,
“Line”, “Line In Jack”,
“Line”, “Line Out Jack”,
“Headphone”, “Headphone Jack”,
“Speaker”, “Speaker External”;