linux-kernel - sound: aplay\arecord audio frame flow

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Date:   Mon, 14 May 2018 18:11:41 +0530
From:   Muni Sekhar <munisekharrms@...il.com>
To:     alsa-devel <alsa-devel@...a-project.org>,
        linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: sound: aplay\arecord audio frame flow

[ Please keep me in CC as I'm not subscribed to the list]

Hi All,

Is there anyway in the kernel sound subsystem to know when the
application calls ‘aplay’ and anything starts playing?

Also for arecord\aplay, Is there any way from kernel's point of view
to know when it receives for example the first and last audio frames?

-- 
Thanks,
Sekhar