From mboxrd@z Thu Jan  1 00:00:00 1970
From: Clemens Ladisch <clemens@ladisch.de>
Subject: Re: Timing Info
Date: Sun, 13 Jun 2010 16:10:19 +0200
Message-ID: <4C14E6CB.2030909@ladisch.de>
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To: Paul Dugas <paul@dugasenterprises.com>
Cc: alsa-devel@alsa-project.org
List-Id: alsa-devel@alsa-project.org

Paul Dugas wrote:
> Looks like some processing of the trigger timestamp is what I need

Trigger events are starting or stopping of a stream.

> What's the "timestamp mode".  Does it generate a timestamp each
> period?  How would I access that timestamp?

Set SND_PCM_TSTAMP_ENABLE to generate a timestamp whenever the hardware
position is updated.  Call snd_pcm_status to read the position and the
corresponding timestamp.


HTH
Clemens