1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*4882a593Smuzhiyun.. c:namespace:: DTV.audio 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun.. _AUDIO_SET_AV_SYNC: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun================= 7*4882a593SmuzhiyunAUDIO_SET_AV_SYNC 8*4882a593Smuzhiyun================= 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunName 11*4882a593Smuzhiyun---- 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunAUDIO_SET_AV_SYNC 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun.. attention:: This ioctl is deprecated 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunSynopsis 18*4882a593Smuzhiyun-------- 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun.. c:macro:: AUDIO_SET_AV_SYNC 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun``int ioctl(int fd, AUDIO_SET_AV_SYNC, boolean state)`` 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunArguments 25*4882a593Smuzhiyun--------- 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun.. flat-table:: 28*4882a593Smuzhiyun :header-rows: 0 29*4882a593Smuzhiyun :stub-columns: 0 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun - 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun - int fd 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun - File descriptor returned by a previous call to open(). 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun - 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun - boolean state 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun - Tells the Digital TV subsystem if A/V synchronization shall be ON or OFF. 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun TRUE: AV-sync ON 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun FALSE: AV-sync OFF 46*4882a593Smuzhiyun 47*4882a593SmuzhiyunDescription 48*4882a593Smuzhiyun----------- 49*4882a593Smuzhiyun 50*4882a593SmuzhiyunThis ioctl call asks the Audio Device to turn ON or OFF A/V 51*4882a593Smuzhiyunsynchronization. 52*4882a593Smuzhiyun 53*4882a593SmuzhiyunReturn Value 54*4882a593Smuzhiyun------------ 55*4882a593Smuzhiyun 56*4882a593SmuzhiyunOn success 0 is returned, on error -1 and the ``errno`` variable is set 57*4882a593Smuzhiyunappropriately. The generic error codes are described at the 58*4882a593Smuzhiyun:ref:`Generic Error Codes <gen-errors>` chapter. 59