.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later .. c:namespace:: DTV.fe .. _FE_GET_FRONTEND: *************** FE_GET_FRONTEND *************** Name ==== FE_GET_FRONTEND .. attention:: This ioctl is deprecated. Synopsis ======== .. c:macro:: FE_GET_FRONTEND ``int ioctl(int fd, FE_GET_FRONTEND, struct dvb_frontend_parameters *p)`` Arguments ========= ``fd`` File descriptor returned by :c:func:`open()`. ``p`` Points to parameters for tuning operation. Description =========== This ioctl call queries the currently effective frontend parameters. For this command, read-only access to the device is sufficient. 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 - ``EINVAL`` - Maximum supported symbol rate reached. Generic error codes are described at the :ref:`Generic Error Codes ` chapter.