Kernel features for USB host mode audio
Change-Id: I9ea46f6dab2f39c8b7e70c1f6374a529c2e379e8
diff --git a/src/devices/audio/usb.jd b/src/devices/audio/usb.jd
index e805ac4..147bfa3 100644
--- a/src/devices/audio/usb.jd
+++ b/src/devices/audio/usb.jd
@@ -552,7 +552,10 @@
<ul>
<li>design hardware to support USB host mode</li>
-<li>enable all kernel features needed: USB host mode, USB audio, isochronous transfer mode</li>
+<li>enable generic USB host support at the framework level
+via the <code>android.hardware.usb.host.xml</code> feature flag</li>
+<li>enable all kernel features needed: USB host mode, USB audio, isochronous transfer mode;
+see <a href="{@docRoot}/devices/tech/kernel.html">Android Kernel Configuration</a></li>
<li>keep up-to-date with recent kernel releases and patches;
despite the noble goal of class compliance, there are extant audio peripherals
with <a href="http://en.wiktionary.org/wiki/quirk">quirks</a>,