On 17-Apr-06, at 8:48 PM, Peter Seebach wrote:

> In message <0047DC45-E864-414A-B1D2-3424777C73E9@invisible.ca>,  
> "Jared D. McNei
> ll" writes:
>> The esa(4) driver already supports this -- hardware mixing of 4
>> independent playback channels by calling audio_attach_mi() four
>> times. To enable support, set 'options ESA_NUM_VOICES=4' in your
>> kernel config.
>
> If memory serves, this showed up as esa0 through esa3.  Wouldn't it  
> be cool
> to have the kernel just handle multiple openers of, for instance,  
> "esa0", and
> possibly even have the option of doing mixing in software when  
> necessary?

It was audio0 through audio3 at esa0. As Lubomir Sedlacik mentioned,  
kent-audio2 branch intends to tackle the software mixing problem.

Cheers,
Jared