*
* @querymenu: callback for VIDIOC_QUERYMENU ioctl handler code.
*
+ * @ioctl: called at the end of ioctl() syscall handler at the V4L2 core.
+ * used to provide support for private ioctls used on the driver.
+ *
+ * @compat_ioctl32: called when a 32 bits application uses a 64 bits Kernel,
+ * in order to fix data passed from/to userspace.
+ *
* @g_register: callback for VIDIOC_G_REGISTER ioctl handler code.
*
* @s_register: callback for VIDIOC_G_REGISTER ioctl handler code.
* handler, when an interrupt status has be raised due to this subdev,
* so that this subdev can handle the details. It may schedule work to be
* performed later. It must not sleep. *Called from an IRQ context*.
+ *
+ * @subscribe_event: used by the drivers to request the control framework that
+ * for it to be warned when the value of a control changes.
+ *
+ * @unsubscribe_event: remove event subscription from the control framework.
*/
struct v4l2_subdev_core_ops {
int (*log_status)(struct v4l2_subdev *sd);
/**
* struct s_radio - Callbacks used when v4l device was opened in radio mode.
*
- * @g_frequency: freq->type must be filled in. Normally done by video_ioctl2
- * or the bridge driver.
- * @g_tuner:
- * @s_tuner: vt->type must be filled in. Normally done by video_ioctl2 or the
+ * @s_radio: callback for VIDIOC_S_RADIO ioctl handler code.
+ *
+ * @s_frequency: callback for VIDIOC_S_FREQUENCY ioctl handler code.
+ *
+ * @g_frequency: callback for VIDIOC_G_FREQUENCY ioctl handler code.
+ * freq->type must be filled in. Normally done by video_ioctl2
+ * or the bridge driver.
+ *
+ * @enum_freq_bands: callback for VIDIOC_ENUM_FREQ_BANDS ioctl handler code.
+ *
+ * @g_tuner: callback for VIDIOC_G_TUNER ioctl handler code.
+ *
+ * @s_tuner: callback for VIDIOC_S_TUNER ioctl handler code. vt->type must be
+ * filled in. Normally done by video_ioctl2 or the
* bridge driver.
*
+ * @g_modulator: callback for VIDIOC_G_MODULATOR ioctl handler code.
+ *
+ * @s_modulator: callback for VIDIOC_S_MODULATOR ioctl handler code.
+ *
* @s_type_addr: sets tuner type and its I2C addr.
+ *
* @s_config: sets tda9887 specific stuff, like port1, port2 and qss
*/
struct v4l2_subdev_tuner_ops {
* board or platform it might be connected to something else entirely.
* The calling driver is responsible for mapping a user-level input to
* the right pins on the i2c device.
+ *
+ * @s_stream: used to notify the audio code that stream will start or has
+ * stopped.
*/
struct v4l2_subdev_audio_ops {
int (*s_clock_freq)(struct v4l2_subdev *sd, u32 freq);
/**
* struct v4l2_subdev_video_ops - Callbacks used when v4l device was opened
* in video mode.
+ *
+ * @s_routing: see s_routing in audio_ops, except this version is for video
+ * devices.
+ *
+ * @s_crystal_freq: sets the frequency of the crystal used to generate the
+ * clocks in Hz. An extra flags field allows device specific configuration
+ * regarding clock frequency dividers, etc. If not used, then set flags
+ * to 0. If the frequency is not supported, then -EINVAL is returned.
+ *
+ * @g_std: callback for VIDIOC_G_STD ioctl handler code.
+ *
+ * @s_std: callback for VIDIOC_S_STD ioctl handler code.
+ *
* @s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by
* video input devices.
*
* @g_std_output: get current standard for video OUTPUT devices. This is ignored
* by video input devices.
*
+ * @querystd: callback for VIDIOC_QUERYSTD ioctl handler code.
+ *
* @g_tvnorms: get v4l2_std_id with all standards supported by the video
* CAPTURE device. This is ignored by video output devices.
*
* @g_tvnorms_output: get v4l2_std_id with all standards supported by the video
* OUTPUT device. This is ignored by video capture devices.
*
- * @s_crystal_freq: sets the frequency of the crystal used to generate the
- * clocks in Hz. An extra flags field allows device specific configuration
- * regarding clock frequency dividers, etc. If not used, then set flags
- * to 0. If the frequency is not supported, then -EINVAL is returned.
- *
* @g_input_status: get input status. Same as the status field in the v4l2_input
* struct.
*
- * @s_routing: see s_routing in audio_ops, except this version is for video
- * devices.
+ * @s_stream: used to notify the driver that a video stream will start or has
+ * stopped.
+ *
+ * @cropcap: callback for VIDIOC_CROPCAP ioctl handler code.
+ *
+ * @g_crop: callback for VIDIOC_G_CROP ioctl handler code.
+ *
+ * @s_crop: callback for VIDIOC_S_CROP ioctl handler code.
*
- * @s_dv_timings(): Set custom dv timings in the sub device. This is used
+ * @g_parm: callback for VIDIOC_G_PARM ioctl handler code.
+ *
+ * @s_parm: callback for VIDIOC_S_PARM ioctl handler code.
+ *
+ * @g_frame_interval: callback for VIDIOC_G_FRAMEINTERVAL ioctl handler code.
+ *
+ * @s_frame_interval: callback for VIDIOC_S_FRAMEINTERVAL ioctl handler code.
+ *
+ * @s_dv_timings: Set custom dv timings in the sub device. This is used
* when sub device is capable of setting detailed timing information
* in the hardware to generate/detect the video signal.
*
- * @g_dv_timings(): Get custom dv timings in the sub device.
+ * @g_dv_timings: Get custom dv timings in the sub device.
+ *
+ * @query_dv_timings: callback for VIDIOC_QUERY_DV_TIMINGS ioctl handler code.
+ *
* @g_mbus_config: get supported mediabus configurations
*
* @s_mbus_config: set a certain mediabus configuration. This operation is added
* member (to determine whether CC data from the first or second field
* should be obtained).
*
+ * @g_sliced_vbi_cap: callback for VIDIOC_SLICED_VBI_CAP ioctl handler code.
+ *
* @s_raw_fmt: setup the video encoder/decoder for raw VBI.
*
* @g_sliced_fmt: retrieve the current sliced VBI settings.
/**
* struct v4l2_subdev_pad_ops - v4l2-subdev pad level operations
+ *
+ * @enum_mbus_code: callback for VIDIOC_SUBDEV_ENUM_MBUS_CODE ioctl handler
+ * code.
+ * @enum_frame_size: callback for VIDIOC_SUBDEV_ENUM_FRAME_SIZE ioctl handler
+ * code.
+ *
+ * @enum_frame_interval: callback for VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL ioctl
+ * handler code.
+ *
+ * @get_fmt: callback for VIDIOC_SUBDEV_G_FMT ioctl handler code.
+ *
+ * @set_fmt: callback for VIDIOC_SUBDEV_S_FMT ioctl handler code.
+ *
+ * @get_selection: callback for VIDIOC_SUBDEV_G_SELECTION ioctl handler code.
+ *
+ * @set_selection: callback for VIDIOC_SUBDEV_S_SELECTION ioctl handler code.
+ *
+ * @get_edid: callback for VIDIOC_SUBDEV_G_EDID ioctl handler code.
+ *
+ * @set_edid: callback for VIDIOC_SUBDEV_S_EDID ioctl handler code.
+ *
+ * @dv_timings_cap: callback for VIDIOC_SUBDEV_DV_TIMINGS_CAP ioctl handler
+ * code.
+ *
+ * @enum_dv_timings: callback for VIDIOC_SUBDEV_ENUM_DV_TIMINGS ioctl handler
+ * code.
+ *
+ * @link_validate: used by the media controller code to check if the links
+ * that belongs to a pipeline can be used for stream.
+ *
* @get_frame_desc: get the current low level media bus frame parameters.
- * @get_frame_desc: set the low level media bus frame parameters, @fd array
+ *
+ * @set_frame_desc: set the low level media bus frame parameters, @fd array
* may be adjusted by the subdev driver to device capabilities.
*/
struct v4l2_subdev_pad_ops {
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