From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Alexander E. Patrakov" Subject: Re: [PATCH v4 05/10] ALSA: core: selection of audio_tstamp type and accuracy reports Date: Sat, 31 Jan 2015 12:37:58 +0500 Message-ID: <54CC8656.5080506@gmail.com> References: <1422662163-7391-1-git-send-email-pierre-louis.bossart@linux.intel.com> <1422662163-7391-6-git-send-email-pierre-louis.bossart@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wg0-f47.google.com (mail-wg0-f47.google.com [74.125.82.47]) by alsa0.perex.cz (Postfix) with ESMTP id C9EC42604DD for ; Sat, 31 Jan 2015 08:38:01 +0100 (CET) Received: by mail-wg0-f47.google.com with SMTP id n12so30498527wgh.6 for ; Fri, 30 Jan 2015 23:38:01 -0800 (PST) In-Reply-To: <1422662163-7391-6-git-send-email-pierre-louis.bossart@linux.intel.com> 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: Pierre-Louis Bossart , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org 31.01.2015 04:55, Pierre-Louis Bossart wrote: > Audio timestamps can be extracted from sample counters, wall clocks, > PHC clocks (Ethernet AVB), on-demand synchronized snapshots. This > patch provides the ability to report timestamping capabilities, select > timestamp types and retrieve timestamp accuracy, if supported. > Details can be found in Documentations/sound/alsa/timestamping.txt I think that it is a good idea to add some example ./audio_time output on a card that is neither HDAudio nor USB audio (i.e. a card not specifically touched by your patches), so that the fallback behavior is known. -- Alexander E. Patrakov