Documentation/userspace-api/media/dvb/fe-diseqc-send-master-cmd.rst

   1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
   2 .. c:namespace:: DTV.fe
   3
   4 .. _FE_DISEQC_SEND_MASTER_CMD:
   5
   6 *******************************
   7 ioctl FE_DISEQC_SEND_MASTER_CMD
   8 *******************************
   9
  10 Name
  11 ====
  12
  13 FE_DISEQC_SEND_MASTER_CMD - Sends a DiSEqC command
  14
  15 Synopsis
  16 ========
  17
  18 .. c:macro:: FE_DISEQC_SEND_MASTER_CMD
  19
  20 ``int ioctl(int fd, FE_DISEQC_SEND_MASTER_CMD, struct dvb_diseqc_master_cmd *argp)``
  21
  22 Arguments
  23 =========
  24
  25 ``fd``
  26     File descriptor returned by :c:func:`open()`.
  27
  28 ``argp``
  29     pointer to struct
  30     :c:type:`dvb_diseqc_master_cmd`
  31
  32 Description
  33 ===========
  34
  35 Sends the DiSEqC command pointed by :c:type:`dvb_diseqc_master_cmd`
  36 to the antenna subsystem.
  37
  38 Return Value
  39 ============
  40
  41 On success 0 is returned.
  42
  43 On error -1 is returned, and the ``errno`` variable is set
  44 appropriately.
  45
  46 Generic error codes are described at the
  47 :ref:`Generic Error Codes <gen-errors>` chapter.
  48