<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - module-loopback ignores latency_msec option"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=80770#c6">Comment # 6</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - module-loopback ignores latency_msec option"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=80770">bug 80770</a>
              from <span class="vcard"><a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> <span class="fn">Raymond</span></a>
</span></b>
        <pre><a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/oxygen/oxygen_pcm.c?id=93943beb29be7084afb61556e96bc454079bfb0e">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/oxygen/oxygen_pcm.c?id=93943beb29be7084afb61556e96bc454079bfb0e</a>

only a few sound cards support disable period wakeup

seem have lower period bytes minimum 64 than hda-Intel 128


err = snd_pcm_hw_constraint_step(runtime, 0,
                     SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
    if (err < 0)
        return err;
    err = snd_pcm_hw_constraint_step(runtime, 0,
                     SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32);


<a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=2ae66c26550cd94b0e2606a9275eb0ab7070ad0e">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=2ae66c26550cd94b0e2606a9275eb0ab7070ad0e</a>

does intel hda really support arbitrary period sizes since Fifo size is fixed</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the QA Contact for the bug.</li>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>