1.. -*- coding: utf-8; mode: rst -*- 2 3.. _AUDIO_BILINGUAL_CHANNEL_SELECT: 4 5============================== 6AUDIO_BILINGUAL_CHANNEL_SELECT 7============================== 8 9Name 10---- 11 12AUDIO_BILINGUAL_CHANNEL_SELECT 13 14.. attention:: This ioctl is deprecated 15 16Synopsis 17-------- 18 19.. c:function:: int ioctl(int fd, AUDIO_BILINGUAL_CHANNEL_SELECT, struct *audio_channel_select) 20 :name: AUDIO_BILINGUAL_CHANNEL_SELECT 21 22 23Arguments 24--------- 25 26.. flat-table:: 27 :header-rows: 0 28 :stub-columns: 0 29 30 - 31 32 - int fd 33 34 - File descriptor returned by a previous call to open(). 35 36 - 37 38 - audio_channel_select_t ch 39 40 - Select the output format of the audio (mono left/right, stereo). 41 42 43Description 44----------- 45 46This ioctl is obsolete. Do not use in new drivers. It has been replaced 47by the V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK`` control 48for MPEG decoders controlled through V4L2. 49 50This ioctl call asks the Audio Device to select the requested channel 51for bilingual streams if possible. 52 53 54Return Value 55------------ 56 57On success 0 is returned, on error -1 and the ``errno`` variable is set 58appropriately. The generic error codes are described at the 59:ref:`Generic Error Codes <gen-errors>` chapter. 60