1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2 .. c:namespace:: DTV.audio
15 .. attention:: This ioctl is deprecated
20 .. c:macro:: AUDIO_SET_AV_SYNC
22 ``int ioctl(int fd, AUDIO_SET_AV_SYNC, boolean state)``
35 - File descriptor returned by a previous call to open().
41 - Tells the Digital TV subsystem if A/V synchronization shall be ON or OFF.
50 This ioctl call asks the Audio Device to turn ON or OFF A/V
56 On success 0 is returned, on error -1 and the ``errno`` variable is set
57 appropriately. The generic error codes are described at the
58 :ref:`Generic Error Codes <gen-errors>` chapter.