Merged revisions 167095 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r167095 | tilghman | 2008-12-31 18:01:22 -0600 (Wed, 31 Dec 2008) | 5 lines
  
  Repeat attempts to write when we receive -EAGAIN from the driver, as detailed
  in the ALSA sample code (see http://www.alsa-project.org/alsa-doc/alsa-lib/_2test_2pcm_8c-example.html#a32)
  Reported by: Jerry Geis (via the -users list)
  Fixed by: me (license 14)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@168526 65c4cc65-6c06-0410-ace0-fbb531ad65f3