From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Subject: Re: trouble using S/PDIF input on CMI8738-MC6: C-Media CMI8738 (model 55) Date: Wed, 13 Aug 2014 10:11:23 -0700 Message-ID: <53EB9C3B.2070602@seniorblanco.com> References: <53EA40EB.2060201@seniorblanco.com> <53EB80C3.7020909@ladisch.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from thetis.seniorblanco.com (108-227-52-43.lightspeed.irvnca.sbcglobal.net [108.227.52.43]) by alsa0.perex.cz (Postfix) with ESMTP id D4D09261A2F for ; Wed, 13 Aug 2014 19:12:01 +0200 (CEST) In-Reply-To: <53EB80C3.7020909@ladisch.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Clemens Ladisch , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On 08/13/2014 08:14 AM, Clemens Ladisch wrote: > jon wrote: >> Simple mixer control 'IEC958 In Record',0 >> Mono: Playback [off] > > Shouldn't this be on? Yes, it should, and actually it automatically turns itself on automatically when the arecord command is started, and then back off after the i/o error. Note that this is one of the toggles that only appeared in alsamixer after the source code change of the two "#if 0" lines to "#if 1". > >> Simple mixer control 'IEC958 In Select',0 >> Mono: Playback [on] > > IIRC this selects between two different inputs. > Try both settings. Yes, the documentation I have read suggests it should toggle between the internal CDROM when off and the external digital input when on, however I have tried both settings and there is no apparent change in behavior. I still get an i/o error and a 44 byte file either way. > > > Regards, > Clemens >