.. -*- coding: utf-8; mode: rst -*- .. _FE_GET_FRONTEND: *************** FE_GET_FRONTEND *************** Name ==== FE_GET_FRONTEND Synopsis ======== .. c:function:: int ioctl(int fd, int request = FE_GET_FRONTEND, struct dvb_frontend_parameters *p) Arguments ========= .. flat-table:: :header-rows: 0 :stub-columns: 0 - .. row 1 - int fd - File descriptor returned by a previous call to open(). - .. row 2 - int request - Equals :ref:`FE_SET_FRONTEND` for this command. - .. row 3 - struct dvb_frontend_parameters \*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 and the ``errno`` variable is set appropriately. The generic error codes are described at the :ref:`Generic Error Codes ` chapter. .. flat-table:: :header-rows: 0 :stub-columns: 0 - .. row 1 - ``EINVAL`` - Maximum supported symbol rate reached.