1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2 .. c:namespace:: DTV.dmx
18 .. c:macro:: DMX_START
20 ``int ioctl(int fd, DMX_START)``
26 File descriptor returned by :c:func:`open()`.
31 This ioctl call is used to start the actual filtering operation defined
32 via the ioctl calls :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER`.
37 On success 0 is returned.
39 On error -1 is returned, and the ``errno`` variable is set
42 .. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
52 - Invalid argument, i.e. no filtering parameters provided via the
53 :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER` ioctls.
59 - This error code indicates that there are conflicting requests.
60 There are active filters filtering data from another input source.
61 Make sure that these filters are stopped before starting this
64 The generic error codes are described at the
65 :ref:`Generic Error Codes <gen-errors>` chapter.