.. -*- coding: utf-8; mode: rst -*- .. _DMX_START: ========= DMX_START ========= Name ---- DMX_START Synopsis -------- .. c:function:: int ioctl( int fd, DMX_START) :name: DMX_START Arguments --------- ``fd`` File descriptor returned by :c:func:`open() `. Description ----------- This ioctl call is used to start the actual filtering operation defined via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER. Return Value ------------ On success 0 is returned, on error -1 and the ``errno`` variable is set appropriately. The generic error codes are described at the :ref:`Generic Error Codes ` chapter. .. tabularcolumns:: |p{2.5cm}|p{15.0cm}| .. flat-table:: :header-rows: 0 :stub-columns: 0 - .. row 1 - ``EINVAL`` - Invalid argument, i.e. no filtering parameters provided via the DMX_SET_FILTER or DMX_SET_PES_FILTER functions. - .. row 2 - ``EBUSY`` - This error code indicates that there are conflicting requests. There are active filters filtering data from another input source. Make sure that these filters are stopped before starting this filter.