From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Henningsson Subject: Re: [PATCH 0/2] add sysfs for acpi interfaces of thinkpad hardware mute Date: Wed, 14 Aug 2013 22:59:48 +0200 Message-ID: <520BEFC4.4030203@canonical.com> References: <1376458802-11923-1-git-send-email-alex.hung@canonical.com> <1376458937.30031.1.camel@x230> <1376459647.30031.2.camel@x230> <1376460872.30031.4.camel@x230> <1376463610.30031.6.camel@x230> <520B3511.7020604@canonical.com> <1376466691.30031.14.camel@x230> <520B4D71.6070109@canonical.com> <1376492217.28002.1.camel@x230.lan> <520BE01F.9090402@canonical.com> <1376510744.28002.6.camel@x230.lan> <520BEA52.5030705@canonical.com> <1376512731.28002.8.camel@x230.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1376512731.28002.8.camel@x230.lan> Sender: platform-driver-x86-owner@vger.kernel.org To: Matthew Garrett Cc: Alex Hung , Tim Chen , "ibm-acpi@hmh.eng.br" , "ibm-acpi-devel@lists.sourceforge.net" , "platform-driver-x86@vger.kernel.org" , "alsa-devel@alsa-project.org" , YK List-Id: alsa-devel@alsa-project.org On 08/14/2013 10:38 PM, Matthew Garrett wrote: > On Wed, 2013-08-14 at 22:36 +0200, David Henningsson wrote: > >> Imagine you're a non-technical user, who has never heard the words >> "compromised userspace". You connect your headset where it fits (or >> cordless), and then select the headset in sound settings (if it didn't >> get selected for you when you plugged it in). You're on a VOIP call and >> press the mic mute hotkey. Which mic did you expect to mute? The >> selected one. On the mic mute hotkey button, there is also a LED. You >> expect it to lit, because you muted the mic that you currently care >> about, i e, the selected one. > > The user hit the mute key. Why would they expect *anything* to be > unmuted? > Why should the userspace application, who just wants to lit a LED, have to care about a lot of other sound cards and interfaces and mute them, when the user does not care? And what about multiseat setups? If a multiseat keyboard has a mic mute LED, do you think another user's mic mute state should influence the LED of your keyboard? -- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic