1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2.. c:namespace:: DTV.audio 3 4.. _AUDIO_SET_AV_SYNC: 5 6================= 7AUDIO_SET_AV_SYNC 8================= 9 10Name 11---- 12 13AUDIO_SET_AV_SYNC 14 15.. attention:: This ioctl is deprecated 16 17Synopsis 18-------- 19 20.. c:macro:: AUDIO_SET_AV_SYNC 21 22``int ioctl(int fd, AUDIO_SET_AV_SYNC, boolean state)`` 23 24Arguments 25--------- 26 27.. flat-table:: 28 :header-rows: 0 29 :stub-columns: 0 30 31 - 32 33 - int fd 34 35 - File descriptor returned by a previous call to open(). 36 37 - 38 39 - boolean state 40 41 - Tells the Digital TV subsystem if A/V synchronization shall be ON or OFF. 42 43 TRUE: AV-sync ON 44 45 FALSE: AV-sync OFF 46 47Description 48----------- 49 50This ioctl call asks the Audio Device to turn ON or OFF A/V 51synchronization. 52 53Return Value 54------------ 55 56On success 0 is returned, on error -1 and the ``errno`` variable is set 57appropriately. The generic error codes are described at the 58:ref:`Generic Error Codes <gen-errors>` chapter. 59