[media] DocBook: better document the DVB-S2 rolloff factor

Instead of using a program listing, use a table and make clearer
what each define means.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

2 files changed, 31 insertions, 10 deletions

diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml
index e1d1e2469029..c0aa1ad9eccf 100644
--- a/Documentation/DocBook/media/dvb/dvbproperty.xml
+++ b/Documentation/DocBook/media/dvb/dvbproperty.xml
@@ -468,14 +468,33 @@ get/set up to 64 properties. The actual meaning of each property is described on
 
         <section id="fe-rolloff-t">
                 <title>fe_rolloff type</title>
-                <programlisting>
-typedef enum fe_rolloff {
-        ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
-        ROLLOFF_20,
-        ROLLOFF_25,
-        ROLLOFF_AUTO,
-} fe_rolloff_t;
-                </programlisting>
+<table pgwide="1" frame="none" id="fe-rolloff">
+    <title>enum fe_rolloff</title>
+    <tgroup cols="2">
+        &cs-def;
+        <thead>
+        <row>
+            <entry>ID</entry>
+            <entry>Description</entry>
+        </row>
+        </thead>
+        <tbody valign="top">
+        <row>
+            <entry align="char" id="ROLLOFF-35"><constant>ROLLOFF_35</constant></entry>
+            <entry align="char">Roloff factor: &alpha;=35%</entry>
+        </row><row>
+            <entry align="char" id="ROLLOFF-20"><constant>ROLLOFF_20</constant></entry>
+            <entry align="char">Roloff factor: &alpha;=20%</entry>
+        </row><row>
+            <entry align="char" id="ROLLOFF-25"><constant>ROLLOFF_25</constant></entry>
+            <entry align="char">Roloff factor: &alpha;=25%</entry>
+        </row><row>
+            <entry align="char" id="ROLLOFF-AUTO"><constant>ROLLOFF_AUTO</constant></entry>
+            <entry align="char">Auto-detect the roloff factor.</entry>
+        </row>
+        </tbody>
+    </tgroup>
+</table>
                 </section>
         </section>
         <section id="DTV-DISEQC-SLAVE-REPLY">
diff --git a/include/uapi/linux/dvb/frontend.h b/include/uapi/linux/dvb/frontend.h
index bb222eb04627..cdd9e2fc030d 100644
--- a/include/uapi/linux/dvb/frontend.h
+++ b/include/uapi/linux/dvb/frontend.h
@@ -407,12 +407,14 @@ enum fe_pilot {
 
 typedef enum fe_pilot fe_pilot_t;
 
-typedef enum fe_rolloff {
+enum fe_rolloff {
         ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
         ROLLOFF_20,
         ROLLOFF_25,
         ROLLOFF_AUTO,
-} fe_rolloff_t;
+};
+
+typedef enum fe_rolloff fe_rolloff_t;
 
 typedef enum fe_delivery_system {
         SYS_UNDEFINED,