Documentation/media/uapi/dvb/ca-get-cap.rst

   1 .. -*- coding: utf-8; mode: rst -*-
   2
   3 .. _CA_GET_CAP:
   4
   5 ==========
   6 CA_GET_CAP
   7 ==========
   8
   9 Name
  10 ----
  11
  12 CA_GET_CAP
  13
  14
  15 Synopsis
  16 --------
  17
  18 .. c:function:: int ioctl(fd, CA_GET_CAP, struct ca_caps *caps)
  19     :name: CA_GET_CAP
  20
  21
  22 Arguments
  23 ---------
  24
  25 ``fd``
  26   File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
  27
  28 ``caps``
  29   Pointer to struct :c:type:`ca_caps`.
  30
  31 .. c:type:: struct ca_caps
  32
  33 .. flat-table:: struct ca_caps
  34     :header-rows:  1
  35     :stub-columns: 0
  36
  37     -
  38       - type
  39       - name
  40       - description
  41     -
  42       - unsigned int
  43       - slot_num
  44       - total number of CA card and module slots
  45     -
  46       - unsigned int
  47       - slot_type
  48       - bitmask with all supported slot types
  49     -
  50       - unsigned int
  51       - descr_num
  52       - total number of descrambler slots (keys)
  53     -
  54       - unsigned int
  55       - descr_type
  56       - bit mask with all supported descr types
  57
  58
  59 Description
  60 -----------
  61
  62 .. note:: This ioctl is undocumented. Documentation is welcome.
  63
  64
  65 Return Value
  66 ------------
  67
  68 On success 0 is returned, on error -1 and the ``errno`` variable is set
  69 appropriately. The generic error codes are described at the
  70 :ref:`Generic Error Codes <gen-errors>` chapter.