@@ -13,8 +13,14 @@
Also, the union didn't have any space left to be expanded without breaking
userspace. So, the decision was to deprecate the legacy union/struct based
approach, in favor of a properties set approach.</para>
-<para>By using a properties set, it is now possible to extend and support any
- digital TV without needing to redesign the API</para>
+
+<para>NOTE: on Linux DVB API version 3, setting a frontend were done via
+ <link linkend="dvb-frontend-parameters">struct <constant>dvb_frontend_parameters</constant></link>.
+ This got replaced on version 5 (also called "S2API", as this API were
+ added originally_enabled to provide support for DVB-S2), because the old
+ API has a very limited support to new standards and new hardware. This
+ section describes the new and recommended way to set the frontend, with
+ suppports all digital TV delivery systems.</para>
<para>Example: with the properties based approach, in order to set the tuner
to a DVB-C channel at 651 kHz, modulated with 256-QAM, FEC 3/4 and symbol
@@ -67,13 +73,13 @@ int main(void)
return 0;
}
</programlisting>
-<para>NOTE: This section describes the DVB version 5 extension of the DVB-API,
-also called "S2API", as this API were added to provide support for DVB-S2. It
-was designed to be able to replace the old frontend API. Yet, the DISEQC and
-the capability ioctls weren't implemented yet via the new way.</para>
-<para>The typical usage for the <constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant>
-API is to replace the ioctl's were the <link linkend="dvb-frontend-parameters">
-struct <constant>dvb_frontend_parameters</constant></link> were used.</para>
+
+<para>NOTE: While it is possible to directly call the Kernel code like the
+ above example, it is strongly recommended to use
+ <ulink url="http://linuxtv.org/docs/libdvbv5/index.html">libdvbv5</ulink>,
+ as it provides abstraction to work with the supported digital TV standards
+ and provides methods for usual operations like program scanning and to
+ read/write channel descriptor files.</para>
<section id="dtv-stats">
<title>struct <structname>dtv_stats</structname></title>
The notes there are somewhat confusing and assumes that the reader would have read the DVBv3 way. This is not true anymore, as the DVBv3 is now on a separate section that is marked as deprecated. So, cleanup the notes. While here, add a note about using libdvbv5, instead of using the DVBv5 API directly. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>