24 Mar
2006
24 Mar
'06
9:30 a.m.
2006/3/24, Clemens Ladisch <clemens(a)ladisch.de>de>:
snd_pcm_hw_params() goes into the SETUP state and then
calls
snd_pcm_prepare(); I don't know how to display this in a picture. :)
Yes, I read that, but from an App-Developers point of view, this is
roughly equivalent to going to PREPARE directly, IMHO.
You probably want an arrow from snd_pcm_writei() to
RUNNING.
Fixed that. :)
The SUSPENDED and XRUN states can happen
asynchronously, i.e., the
device can go into them at any time (from some other states), and the
next call to snd_pcm_writei() only reports them. In this regard, they
are similar to the DISCONNECTED state.
Is this an issue when using this async-stuff? I think the most likely
situation might be that it happens when you call writei.
XRUN happens not only when an over/underrun occurs but
also when some
other error causes the device to stop (this error may be recoverable or
not).
What could that be?
-Richard