sound on RPi-B?

[Anton Shterenlikht]

If I want sound from an RPi-B, do I just
follow the handbook, or are there any
special considerations?
In particular, it seems I can draw sound
in 2 ways, via a dedicated sound port,
or via HDMI. I'm using an HDMI to VGA
adapter that provides a separate sound
output. I see there is no sound driver
in the default kernel, but since HDMI
is supported, I wonder if I have sound
support already?

Please advise

Thanks

Anton