diff options
Diffstat (limited to 'Documentation/media/uapi/v4l/vidioc-enumaudio.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/vidioc-enumaudio.rst | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/Documentation/media/uapi/v4l/vidioc-enumaudio.rst b/Documentation/media/uapi/v4l/vidioc-enumaudio.rst index bfdc3533240d..74bc3ed0bdd8 100644 --- a/Documentation/media/uapi/v4l/vidioc-enumaudio.rst +++ b/Documentation/media/uapi/v4l/vidioc-enumaudio.rst @@ -15,7 +15,8 @@ VIDIOC_ENUMAUDIO - Enumerate audio inputs Synopsis ======== -.. cpp:function:: int ioctl( int fd, int request, struct v4l2_audio *argp ) +.. c:function:: int ioctl( int fd, VIDIOC_ENUMAUDIO, struct v4l2_audio *argp ) + :name: VIDIOC_ENUMAUDIO Arguments @@ -24,9 +25,6 @@ Arguments ``fd`` File descriptor returned by :ref:`open() <func-open>`. -``request`` - VIDIOC_ENUMAUDIO - ``argp`` @@ -35,14 +33,14 @@ Description To query the attributes of an audio input applications initialize the ``index`` field and zero out the ``reserved`` array of a struct -:ref:`v4l2_audio <v4l2-audio>` and call the :ref:`VIDIOC_ENUMAUDIO` +:c:type:`v4l2_audio` and call the :ref:`VIDIOC_ENUMAUDIO` ioctl with a pointer to this structure. Drivers fill the rest of the structure or return an ``EINVAL`` error code when the index is out of bounds. To enumerate all audio inputs applications shall begin at index zero, incrementing by one until the driver returns ``EINVAL``. See :ref:`VIDIOC_G_AUDIO <VIDIOC_G_AUDIO>` for a description of struct -:ref:`v4l2_audio <v4l2-audio>`. +:c:type:`v4l2_audio`. Return Value |