Audio drivers- Difference between start_output and trigger_output.

[Nat Sloss <nathanialsloss%yahoo.com.au@localhost>]

Hi.

I have read audio(9) and have looked at several audio drivers.  I was having 
trouble with btsco and have found it uses start output instead of trigger 
output.

So my question is what is the difference between start output and trigger 
output? 

Is block,blksize in start output equivalent to start,blksize in trigger 
output?

Is is possible to rewrite btsco so that it uses trigger_output/input?

Any thoughts appreciated.


Regards,

Nat.