linux-kernel - [PATCH v2 24/27] media: ca-get-descr-info.rst: document this ioctl

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Message-Id: <c63ef6b6b74469c37dc626413d35c48698af2418.1504272067.git.mchehab@s-opensource.com>
Date:   Fri,  1 Sep 2017 10:24:46 -0300
From:   Mauro Carvalho Chehab <mchehab@...pensource.com>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Linux Media Mailing List <linux-media@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Mauro Carvalho Chehab <mchehab@...radead.org>,
        linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>
Subject: [PATCH v2 24/27] media: ca-get-descr-info.rst: document this ioctl

Instead of a generic boilerplate, fill it with relevant
information about this ioctl.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
---
 Documentation/media/uapi/dvb/ca-get-descr-info.rst | 29 +++-------------------
 1 file changed, 4 insertions(+), 25 deletions(-)

diff --git a/Documentation/media/uapi/dvb/ca-get-descr-info.rst b/Documentation/media/uapi/dvb/ca-get-descr-info.rst
index 7bf327a3d0e3..e564fbb8d524 100644
--- a/Documentation/media/uapi/dvb/ca-get-descr-info.rst
+++ b/Documentation/media/uapi/dvb/ca-get-descr-info.rst
@@ -27,37 +27,16 @@ Arguments
 ``desc``
   Pointer to struct :c:type:`ca_descr_info`.
 
-.. c:type:: struct ca_descr_info
-
-.. flat-table:: struct ca_descr_info
-    :header-rows:  1
-    :stub-columns: 0
-
-    -
-      - type
-      - name
-      - description
-
-    -
-      - unsigned int
-      - num
-      - number of available descramblers (keys)
-    -
-      - unsigned int
-      - type
-      - type of supported scrambling system. Valid values are:
-	``CA_ECD``, ``CA_NDS`` and ``CA_DSS``.
-
-
 Description
 -----------
 
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
+Returns information about all descrambler slots.
 
 Return Value
 ------------
 
-On success 0 is returned, on error -1 and the ``errno`` variable is set
+On success 0 is returned, and :c:type:`ca_descr_info` is filled.
+
+On error -1 is returned, and the ``errno`` variable is set
 appropriately. The generic error codes are described at the
 :ref:`Generic Error Codes <gen-errors>` chapter.
-- 
2.13.5