From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH 1/3] ASoC: cs4270: fix Master Capture Switch polarity Date: Sun, 26 Apr 2009 10:49:17 +0100 Message-ID: <20090426094917.GA4760@sirena.org.uk> References: <1240578026-1987-1-git-send-email-daniel@caiaq.de> <49F1DE99.7050104@freescale.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from cassiel.sirena.org.uk (cassiel.sirena.org.uk [80.68.93.111]) by alsa0.perex.cz (Postfix) with ESMTP id 9DDC824495 for ; Sun, 26 Apr 2009 11:49:28 +0200 (CEST) Content-Disposition: inline In-Reply-To: <49F1DE99.7050104@freescale.com> 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: Timur Tabi Cc: tiwai@suse.de, alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On Fri, Apr 24, 2009 at 10:45:29AM -0500, Timur Tabi wrote: > Daniel Mack wrote: > > The control modifies the MUTE register, hence the polarity must be > > inverted. > L R > CAPTUR > > < Master > > What exactly does this mean? Which one is supposed to mean "muted"? Capture is enabled in the picture above; often when the alsamixer UI is confusing amixer is a bit clearer about what's going on. > And how come even though this switch is a SOC_DOUBLE, I cannot control > the left and right channel independently with the < and > keys, and the > "M" key doesn't toggle it either. This is a property of capture controls. I'm not entirely sure why, CCing in Takashi who should be able to offer more knowledgable comment.