After 0.9rc7 , using these plugin fails ( EIO ) , if buffer size is low.
There is now an additional checking in pcm_wait (pcm.c line 2017 ) , that came after 0.9rc7:
if (revents & (POLLERR | POLLNVAL))
return -EIO;
Commenting out POLLER| "solves" the problem .
As i am far from being a top developper, I wonder if this new checking is really needed,
and , if it is, do you think that the error could be solved in the plugin code ?
Thanks
Laurent
Kai Vehmanen wrote:
Hi,
first please read the mail to ecasound-list below.
It seems that with newer ALSA versions, snd_pcm_read[in]() sometimes
returns -EIO even though documentation says nothing about this. After some
testing this seems to not happen on direct hw-access, only with
the pcm_plugin. The EIO comes from snd_pcm_wait().
Is this a bug or or a feature?
Btw; the error does not seem to be critical. If I handle
the EIO the same way as EPIPE (i.e. run xrun handling code), the recording will continue fine.
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