From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Andrew Lutomirski <luto@mit.edu>
Cc: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>,
ibm-acpi-devel@lists.sourceforge.net,
platform-driver-x86@vger.kernel.org
Subject: Re: [PATCH] thinkpad-acpi: Enable microphone mute LED
Date: Fri, 27 May 2011 17:48:55 +0100 [thread overview]
Message-ID: <20110527164855.GA17443@srcf.ucam.org> (raw)
In-Reply-To: <BANLkTint5_Vcm5rWKHL_j5XsVmcAu8X7pw@mail.gmail.com>
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@srcf.ucam.org
next prev parent reply other threads:[~2011-05-27 16:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-24 19:41 [PATCH] thinkpad-acpi: Enable microphone mute LED Andy Lutomirski
2011-05-27 16:28 ` Matthew Garrett
2011-05-27 16:39 ` Andrew Lutomirski
2011-05-27 16:48 ` Matthew Garrett [this message]
2011-05-27 18:22 ` Andrew Lutomirski
2011-05-27 18:26 ` Matthew Garrett
2011-06-03 15:50 ` [alsa-devel] " Takashi Iwai
-- strict thread matches above, loose matches on Subject: below --
2011-08-04 21:53 Manoj Iyer
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