Hi, It would be really helpful if someone can help me understand why do we need to implement .pointer and what does it need to do? I am facing an issue to write a driver in this .pointer function. Please help Also if someone can point me to a document where all the playback_ops are defined, it would be really helpful -- -Harsha _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel