Forgot to update documentation to include the new ALSA plugin.

git-svn-id: http://svn.xiph.org/trunk/ao@1942 0101bb08-14d6-0310-b084-bc0e0c8e3800

doc/drivers.html

@@ -60,6 +60,22 @@ Experiment with this if the sound skips.  Default is 32768.
 
 <hr width="50%">
 
+<h3>alsa09</h3>
+
+Advanced Linux Sound Architecture, version 0.9.x API.  This is
+essentially the alsa driver modified to use the newer API.
+<p>
+
+<b>Option keys:</b>
+<ul>
+<li>"dev" - Device name of sound card.  Defaults to "default".
+<li>"buf_size" - Override the internal buffer size (in bytes).  
+Experiment with this if the sound skips.  Default is 32768.
+</ul>
+<p>
+
+<hr width="50%">
+
 <h3>esd</h3>
 
 ESounD audio driver.  This sound daemon is used on some Linux systems.