| .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later |
| |
| .. _AUDIO_SET_MUTE: |
| |
| ============== |
| AUDIO_SET_MUTE |
| ============== |
| |
| Name |
| ---- |
| |
| AUDIO_SET_MUTE |
| |
| .. attention:: This ioctl is deprecated |
| |
| Synopsis |
| -------- |
| |
| .. c:function:: int ioctl(int fd, AUDIO_SET_MUTE, boolean state) |
| :name: AUDIO_SET_MUTE |
| |
| |
| Arguments |
| --------- |
| |
| .. flat-table:: |
| :header-rows: 0 |
| :stub-columns: 0 |
| |
| |
| - |
| |
| - int fd |
| |
| - File descriptor returned by a previous call to open(). |
| |
| - |
| |
| - boolean state |
| |
| - Indicates if audio device shall mute or not. |
| |
| TRUE: Audio Mute |
| |
| FALSE: Audio Un-mute |
| |
| |
| Description |
| ----------- |
| |
| This ioctl is for Digital TV devices only. To control a V4L2 decoder use the |
| V4L2 :ref:`VIDIOC_DECODER_CMD` with the |
| ``V4L2_DEC_CMD_START_MUTE_AUDIO`` flag instead. |
| |
| This ioctl call asks the audio device to mute the stream that is |
| currently being played. |
| |
| |
| Return Value |
| ------------ |
| |
| On success 0 is returned, on error -1 and the ``errno`` variable is set |
| appropriately. The generic error codes are described at the |
| :ref:`Generic Error Codes <gen-errors>` chapter. |
