[pulseaudio-tickets] [Bug 84585] Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84585

--- Comment #17 from Alessandro Ferri <alessandroferri_015 at fastwebnet.it> ---
Now I ask HiFiBerry, for me it is an unknown area.



(In reply to Raymond from comment #16)
> if your sound card cannot report dma residue, pcm pointer callback of your
> driver return hwptr position which increment by one period in tne interrupt
> handler

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