[alsa-devel] 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?