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- .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
- .. c:namespace:: DTV.fe
- .. _FE_GET_EVENT:
- ************
- FE_GET_EVENT
- ************
- Name
- ====
- FE_GET_EVENT
- .. attention:: This ioctl is deprecated.
- Synopsis
- ========
- .. c:macro:: FE_GET_EVENT
- ``int ioctl(int fd, FE_GET_EVENT, struct dvb_frontend_event *ev)``
- Arguments
- =========
- ``fd``
- File descriptor returned by :c:func:`open()`.
- ``ev``
- Points to the location where the event, if any, is to be stored.
- Description
- ===========
- This ioctl call returns a frontend event if available. If an event is
- not available, the behavior depends on whether the device is in blocking
- or non-blocking mode. In the latter case, the call fails immediately
- with errno set to ``EWOULDBLOCK``. In the former case, the call blocks until
- an event becomes available.
- Return Value
- ============
- On success 0 is returned.
- On error -1 is returned, and the ``errno`` variable is set
- appropriately.
- .. flat-table::
- :header-rows: 0
- :stub-columns: 0
- - .. row 1
- - ``EWOULDBLOCK``
- - There is no event pending, and the device is in non-blocking mode.
- - .. row 2
- - ``EOVERFLOW``
- - Overflow in event queue - one or more events were lost.
- Generic error codes are described at the
- :ref:`Generic Error Codes <gen-errors>` chapter.
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