24 Jun
2020
24 Jun
'20
6:33 p.m.
The silent stream is enabled with a Kconfig option, as well as a kernel parameter should there be a need to override the build time default.
I'm not sure whether the module option is the best interface. An alternative is a mixer element that controls dynamically. Then it'll be per card unlike the module option.
+1, kcontrol seems the appropriate way to control this.
It was my suggestion to use Kconfig+kernel parameter for simplicity/overrides.
The kcontrol is a nice idea, but in practice we typically only have one card dealing with HDMI. It also doesn't have a UCM representation so would force the use of amixer and manual configs, or the UCM file would always set the mode.