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[0/2] alsa-lib: -ENODATA documentation

Message ID 20200529122817.1198-1-kai.vehmanen@linux.intel.com
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Series alsa-lib: -ENODATA documentation | expand

Message

Kai Vehmanen May 29, 2020, 12:28 p.m. UTC 
Hello all,

here's patch to document -ENODATA error as a PCM error code.
We have recently merged patches to SOF firmware to use
this error code:
  https://github.com/thesofproject/sof/pull/2918

Some additional background on the use-case:
  https://github.com/thesofproject/sof/issues/2564

In thread "Functionality of pcm_notify in snd-aloop?"
https://mailman.alsa-project.org/pipermail/alsa-devel/2020-April/166974.html

.. we discussed the possibility for ALSA to provide a mechanism
for application to wait for the condition to change, but at least
for the currently known usages, the synchronization responsibility
will be in user-space (UCM file will describe the PCM dependencies).
Anyways, this is orthogonal to documenting -ENODATA, so sending
this now.

Kai Vehmanen (2):
  pcm: add documentation for -ENODATA error code
  pcm: fix spelling in documentation for -EBADFD

 src/pcm/pcm.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)