At Wed, 19 Jun 2002 11:49:14 -0700 (PDT),
Guilhem Tardy wrote:
> 
> I believe that I have misunderstood the meaning of this function, could anyone
> explain?
> 
> In a test of a driver, I see this sequence for playback:
> pointer()
> copy()
> prepare()
> copy()
> pointer()
> copy()
> pointer()
> pointer()
> ...


usually prepare() callback is called at the first before copy() etc.
but please note that prepare() may be called multiple times.
for example, on oss emulation, each time when the condition like
sample format, rates is changed, prepare() is called to set the latest
status.


Takashi


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