[media] v4l2-subdev: add remaining argument descriptions (1d8955b2) · Commits · 戴 / test

include/media/v4l2-subdev.h

+21 −1

Original line number	Diff line number	Diff line
		@@ -157,6 +157,12 @@ struct v4l2_subdev_io_pin_config {
		*
		* @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.
		@@ -168,6 +174,11 @@ struct v4l2_subdev_io_pin_config {
		* 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);
		@@ -264,6 +275,9 @@ 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);
		@@ -339,6 +353,9 @@ struct v4l2_mbus_frame_desc {
		* @g_input_status: get input status. Same as the status field in the v4l2_input
		* struct.
		*
		* @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.
		@@ -578,9 +595,12 @@ struct v4l2_subdev_pad_config {
		* @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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