Yair K. kirjoitti:
>
> On Tuesday 19 August 2008 15:57:47 Hannu Savolainen wrote:
>
> > Ok.
>
> >
>
> > I split oss_audio_chpoll() to separate input and output handlers. Now
>
> > poll/select will report available data if dmap->interrupt_counter > 0.
>
> > This counter gets incremented at each fragment boundary. Calling
>
> > GETIPTR/GETOPTR clears the counter to zero. I think approach should work
>
> > because every mmap application will make these calls.
>
> I ran pulseaudio ("module-oss rate=48000",
> "module-native-protocol-unix") and paplay and it still doesn't work
> when mmap is used.
>
> strace output is attached - I traced only poll and ioctl (I sent the
> SIGINT in order to stop pulseaudio).
>
It looks like PulseAudio doesn't call SNDCTL_DSP_SETTRIGER to start the
device. Poll will never report any input activity if the device is stopped.
Also the strace doesn't seem to contain any poll cals for fd=9.
Best regards,
Hannu
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