Stéphane Letz wrote:
> Hi,
>
> Our jack OSS (or Boomer) driver uses a 2 threads model (one used for
> reading and one used for writing). In duplex mode, we typically open
> the input and output devices separately, then use blocking "read" on
> input side and blocking "write" on output side. Both threads are
> synched using semaphores so that we know when to trigger a "server
> cycle", that is when input have been read and ouput have been written.
>
> In some cases and some hardware (like RME MADI card), it seems record
> in not correctly started and the input stream shows some missing
> frames (like 128 frames of 0 value) or duplicated frames (like 128
> frames repeated twice.)
Do any of these problems occur on Boomer, or just on the OSS drivers
from 4Front?
- Garrett
>
> It seems that the SNDCTL_DSP_SETTRIGGER ioctl
> (http://manuals.opensound.com/developer/SNDCTL_DSP_SETTRIGGER.html)
> should be used for that. Is it still the case with OSS 4.0?
>
> Are the following code example still correct?
>
> http://manuals.opensound.com/developer/fulldup.c.html#LOC79
>
> http://manuals.opensound.com/developer/iosync.c.html#LOC16
>
> Any advice how to use SNDCTL_DSP_SETTRIGGER correctly?
>
> Thanks
>
> Stephane letz
>
>
> _______________________________________________
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> opensound-disc...@opensolaris.org
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