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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84585#c17">Comment # 17</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84585">bug 84585</a>
from <span class="vcard"><a class="email" href="mailto:alessandroferri_015@fastwebnet.it" title="Alessandro Ferri <alessandroferri_015@fastwebnet.it>"> <span class="fn">Alessandro Ferri</span></a>
</span></b>
<pre>Now I ask HiFiBerry, for me it is an unknown area.
(In reply to Raymond from <a href="show_bug.cgi?id=84585#c16">comment #16</a>)
<span class="quote">> 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</span ></pre>
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