From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Clemens Ladisch" Subject: Re: Unable to find an usable access for 'default' Date: Wed, 04 Jul 2007 08:34:19 +0200 Message-ID: <1183530859.19025.1198427403@webmail.messagingengine.com> References: <468ACB86.1040303@freescale.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com [66.111.4.25]) by alsa0.perex.cz (Postfix) with ESMTP id 7699110389E for ; Wed, 4 Jul 2007 08:34:20 +0200 (CEST) Content-Disposition: inline In-Reply-To: <468ACB86.1040303@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 , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Timur Tabi wrote: > I'm developing a new ASOC driver, and I get this error message: > > ALSA lib pcm_plug.c:729:(snd_pcm_plug_hw_refine_schange) Unable to find an usable access for 'default' > > Can someone tell me what this means? It means that the plug plugin (that the ALSA lib uses to automatically convert between sample formats) was not able to find any combination of format/rate/channels/access that would work with your hardware. It is possible that some entries in the snd_pcm_hardware struct are set in an inconsistent way. Please show the code of the driver. > This is on an embedded system, so I don't know if my ALSA installation is > correct. Am I missing some kind of configuration file? No, when the plug plugin being executed means that the configuration files for this have been found. Regards, Clemens