sound: aplay\arecord audio frame flow

From: Muni Sekhar
Date: Mon May 14 2018 - 08:41:49 EST

[ 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 âaplayâ 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?