[alsa-devel] Invalid PCM pointer with CMI8738 and pcm.c buffer underuns

Clemens Ladisch clemens at ladisch.de
Fri Mar 28 09:42:52 CET 2014

Raymond Yau wrote:
> https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/cmipci.c?id=1c583063a5c769fe2ec604752e383972c69e6d9b
> you have to dump the value of the register and increase the number of
> trials to find out whether you can get a valid value

As shown in the bug, the register fails continuously; this is not
a transient failure that could be worked around like in that commit.

>>> Seem bug in adding channel map to iec958 instead of analog
>> What does that mean?

Nothing relevant to this problem.

>> What should I do with those patches?



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