On Fri, May 27, 2011 at 12:48 PM, Matthew Garrett mjg59@srcf.ucam.org wrote:
On Fri, May 27, 2011 at 12:39:10PM -0400, Andrew Lutomirski wrote:
I don't have docs so I don't really know. But the mute LED does not appear to be controllable from the LED interface and when mute is lit there's no sound regardless of what ALSA thinks. When I light the micmute light, I can still record sound just fine.
The mic mute button does nothing on Windows unless the special driver is installed, and that driver seems to mute the Windows mixer, so I think there's nothing special other than a little userspace helper going on.
Hm. That makes things kind of tricky. While it's easy to just expose the LED, really we want to do it in such a way that userspace knows which LEDs it should be toggling while setting the microphone mute.
One thought: call the thing laptop::micmute and teach userspace to look for an led with that name.
Do any of the ALSA or PulseAudio people have any preferences?
--Andy