documentationo: poky-ref-manual - Added example to MACHINE_FEATURES.

Fixes [YOCTO #3292]

Provided a specific example for how adding a feature through
the MACHINE_FEATURES variable can affect the build.

(From yocto-docs rev: a768c88c73ef15a1e40e2547b6bb12ef276472b5)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 12 insertions, 1 deletions

diff --git a/documentation/poky-ref-manual/ref-variables.xml b/documentation/poky-ref-manual/ref-variables.xml
index 4900879..869ff55 100644
--- a/documentation/poky-ref-manual/ref-variables.xml
+++ b/documentation/poky-ref-manual/ref-variables.xml
@@ -1858,8 +1858,19 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
             <glossdef>
                 <para>Specifies the list of hardware features the 
                     <link linkend='var-MACHINE'>MACHINE</link> supports.
+                    For example, including the "bluetooth" feature causes the 
+                    <filename>bluez</filename> bluetooth daemon to be built and 
+                    added to the image.
+                    It also causes the <filename>connman</filename> recipe 
+                    to look at <filename>MACHINE_FEATURES</filename> and when it
+                    finds "bluetooth" there it enables the bluetooth 
+                    support in ConnMan.
+                </para>
+
+                <para>
                     For a list of features supported by the Yocto Project as shipped, 
-                    see the "<link linkend='ref-features-machine'>Machine</link>" section.</para>
+                    see the "<link linkend='ref-features-machine'>Machine</link>" section.
+                </para>
             </glossdef>
          </glossentry>