On 27-Feb-04, at 2:27 AM, Mahadeva Swamy T L wrote:

> I need to support the Audio Driver. I wanted to know whether the 
> audio.c
> present in /sys/dev/ directory can be used to communicate between the
> application and the lower level driver, can I rely upon that? Will it
> hook-up to the Lower Level driver.

Yep! The audio(9) man page explains the API that the low-level HW 
driver uses to interface with the audio subsystem. You also might want 
to have a look at some of the existing drivers to see how they 
interface with it.

Cheers,
Jared