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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - CoreAudio routines return OSStatus, not UInt32"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88901">88901</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>CoreAudio routines return OSStatus, not UInt32
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>PulseAudio
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Mac OS X (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>modules
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>pulseaudio-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>rjvbertin@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>pulseaudio-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>lennart@poettering.net
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=113023" name="attach_113023" title="patch that corrects the err type issue">attachment 113023</a> <a href="attachment.cgi?id=113023&action=edit" title="patch that corrects the err type issue">[details]</a></span>
patch that corrects the err type issue

CoreAudio routines that return an error status do so with the OSStatus type,
which is not a UInt32: typical OS X errors are negative numbers.

Errors like I have been seeing :

W: [iMic USB audio system] module-coreaudio-device.c: Failed to get device
latency: 560947818
W: [iMic USB audio system] module-coreaudio-device.c: Failed to get buffer
frame size: 560947818
W: [iMic USB audio system] module-coreaudio-device.c: Failed to get safety
offset: 560947818
W: [iMic USB audio system] module-coreaudio-device.c: Failed to get streams:
560947818


are thus not informative about the true error that occurred.

The above errors occurred when I tried to change the device a playing
application was streaming to, using pavucontrol; this action did not work.
After rebuilding pulseaudio with the attached path, the feature now seems to
function and I can change the used device at will. (I cannot yet confirm though
that it works 100% of the time.)</pre>
        </div>
      </p>
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