From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [PATCH 1/3] ASoC: cs4270: fix Master Capture Switch polarity Date: Sun, 26 Apr 2009 18:56:49 +0200 Message-ID: References: <1240578026-1987-1-git-send-email-daniel@caiaq.de> <49F1DE99.7050104@freescale.com> <20090426094917.GA4760@sirena.org.uk> <20090426112137.GA20714@sirena.org.uk> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by alsa0.perex.cz (Postfix) with ESMTP id EA26C24384 for ; Sun, 26 Apr 2009 18:56:49 +0200 (CEST) In-Reply-To: <20090426112137.GA20714@sirena.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Mark Brown Cc: alsa-devel@alsa-project.org, Timur Tabi List-Id: alsa-devel@alsa-project.org At Sun, 26 Apr 2009 12:21:37 +0100, Mark Brown wrote: > > On Sun, Apr 26, 2009 at 01:08:22PM +0200, Takashi Iwai wrote: > > > OTOH, "* Capture Switch" is handled as "capture" switch, which is > > indicated as "CAPTURE" (and "L" & "R") in the above. Also, if the > > Right; however the effect of a capture switch is pretty much equivalent > to mute for a playback control. Although the switch is the inverted direction of the mute. > > The keys you mentioned above are all for playback mute controls, thus > > irrelevant with the capture switch. User space key to toggle the > > capture switch. > > That doesn't quite answer Timur's question - the question was more why > capture switches are being presented to the user as mono controls even > when the two channels can be switched independantly. No, they are handled actually as stereo. That's why "L" and "R" are shown in alsamixer. They can be toggled independently via ";" and "'" keys. It's just not written in the man page. Before complaining, patches are appreciated, of course :) Takashi