[alsa-devel] [PATCH] ALSA: hda: Add speaker pin to automute Acer Aspire 8943G

[Valentine Sinitsyn]

> Do you mean that you want to add that "subwoofer" control which is connected
> the the master mono pin of the codec  to the slave controls of the virtual
> master volume control ?
Yes, except "subwoofer" control is to be connected to subwoofer's own 
pin (for instance, 0x17 on Lenovo machines). Subwoofer pins I've seen so 
far have their own output amplifier with mute.

Apart of this, adding presets has usual benefits like giving other 
controls descriptive names (say, "Int. Mic" instead of just "Mic"), but 
obviously it has nothing to do with a subwoofer.

Valentine