From: Mauro Carvalho Chehab Date: Fri, 1 Sep 2017 12:39:43 +0000 (-0400) Subject: media: ca-get-descr-info.rst: document this ioctl X-Git-Tag: v4.14-rc6~35^2~56 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e0f891d8462d51bf42da16095fc9de57f7648043;p=platform%2Fkernel%2Flinux-rpi.git 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 --- diff --git a/Documentation/media/uapi/dvb/ca-get-descr-info.rst b/Documentation/media/uapi/dvb/ca-get-descr-info.rst index 7bf327a..e564fbb 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 ` chapter.