Linux EZ Software Development Kit (EZSDK) for Sitara AM3892 : details of applications inside

Hello

where can i find details of the applications that comes with EZSDK for Sitara AM3892 (codec application...) I need application the can :

-store audio input on SD memory,

-store data coming from ethernet link on SD memory

-read input IO

. Where can i find application example ?

Thanks a lot

best regards