snd_pcm seperate vchan pcm volume mixing

[joerg at britannica.bec.de]

On Thu, Jan 19, 2006 at 02:56:20PM +0100, Simon 'corecode' Schubert wrote:
> opinions?

Don't use a percentage, but e.g. 256 level, replacing the division by a
normal shift. Please also conditionalize that part of the code to be
only used for non-maximum (max == default?) loudness, so it doesn't add
a penalty when not in use.

Joerg