1*793e52d4SMauro Carvalho Chehab.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*793e52d4SMauro Carvalho Chehab.. c:namespace:: DTV.audio 3*793e52d4SMauro Carvalho Chehab 4*793e52d4SMauro Carvalho Chehab.. _AUDIO_SELECT_SOURCE: 5*793e52d4SMauro Carvalho Chehab 6*793e52d4SMauro Carvalho Chehab=================== 7*793e52d4SMauro Carvalho ChehabAUDIO_SELECT_SOURCE 8*793e52d4SMauro Carvalho Chehab=================== 9*793e52d4SMauro Carvalho Chehab 10*793e52d4SMauro Carvalho ChehabName 11*793e52d4SMauro Carvalho Chehab---- 12*793e52d4SMauro Carvalho Chehab 13*793e52d4SMauro Carvalho ChehabAUDIO_SELECT_SOURCE 14*793e52d4SMauro Carvalho Chehab 15*793e52d4SMauro Carvalho Chehab.. attention:: This ioctl is deprecated 16*793e52d4SMauro Carvalho Chehab 17*793e52d4SMauro Carvalho ChehabSynopsis 18*793e52d4SMauro Carvalho Chehab-------- 19*793e52d4SMauro Carvalho Chehab 20*793e52d4SMauro Carvalho Chehab.. c:macro:: AUDIO_SELECT_SOURCE 21*793e52d4SMauro Carvalho Chehab 22*793e52d4SMauro Carvalho Chehab``int ioctl(int fd, AUDIO_SELECT_SOURCE, struct audio_stream_source *source)`` 23*793e52d4SMauro Carvalho Chehab 24*793e52d4SMauro Carvalho ChehabArguments 25*793e52d4SMauro Carvalho Chehab--------- 26*793e52d4SMauro Carvalho Chehab 27*793e52d4SMauro Carvalho Chehab.. flat-table:: 28*793e52d4SMauro Carvalho Chehab :header-rows: 0 29*793e52d4SMauro Carvalho Chehab :stub-columns: 0 30*793e52d4SMauro Carvalho Chehab 31*793e52d4SMauro Carvalho Chehab - 32*793e52d4SMauro Carvalho Chehab 33*793e52d4SMauro Carvalho Chehab - int fd 34*793e52d4SMauro Carvalho Chehab 35*793e52d4SMauro Carvalho Chehab - File descriptor returned by a previous call to open(). 36*793e52d4SMauro Carvalho Chehab 37*793e52d4SMauro Carvalho Chehab - 38*793e52d4SMauro Carvalho Chehab 39*793e52d4SMauro Carvalho Chehab - audio_stream_source_t source 40*793e52d4SMauro Carvalho Chehab 41*793e52d4SMauro Carvalho Chehab - Indicates the source that shall be used for the Audio stream. 42*793e52d4SMauro Carvalho Chehab 43*793e52d4SMauro Carvalho ChehabDescription 44*793e52d4SMauro Carvalho Chehab----------- 45*793e52d4SMauro Carvalho Chehab 46*793e52d4SMauro Carvalho ChehabThis ioctl call informs the audio device which source shall be used for 47*793e52d4SMauro Carvalho Chehabthe input data. The possible sources are demux or memory. If 48*793e52d4SMauro Carvalho ChehabAUDIO_SOURCE_MEMORY is selected, the data is fed to the Audio Device 49*793e52d4SMauro Carvalho Chehabthrough the write command. 50*793e52d4SMauro Carvalho Chehab 51*793e52d4SMauro Carvalho ChehabReturn Value 52*793e52d4SMauro Carvalho Chehab------------ 53*793e52d4SMauro Carvalho Chehab 54*793e52d4SMauro Carvalho ChehabOn success 0 is returned, on error -1 and the ``errno`` variable is set 55*793e52d4SMauro Carvalho Chehabappropriately. The generic error codes are described at the 56*793e52d4SMauro Carvalho Chehab:ref:`Generic Error Codes <gen-errors>` chapter. 57