Re: [PATCH] thinkpad-acpi: Enable microphone mute LED

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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.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx

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