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Commit b8719158 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

[media] v4l2-common.h: Add documentation for other functions 



Not all functions at v4l2-common.h are documented. Add
documentation for some other ones.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent a39c57f8

include/media/v4l2-common.h

+38 −5
Original line number Original line Diff line number Diff line
@@ -78,9 +78,26 @@ 
			v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); 	\

			v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); 	\

	} while (0)

	} while (0)





/* ------------------------------------------------------------------------- */

/**

 * v4l2_ctrl_query_fill- Fill in a struct v4l2_queryctrl

 *

 * @qctrl: pointer to the &struct v4l2_queryctrl to be filled

 * @min: minimum value for the control

 * @max: maximum value for the control

 * @step: control step

 * @def: default value for the control

 *

 * Fills the &struct v4l2_queryctrl fields for the query control.

 *

 * .. note::

 *

 *    This function assumes that the @qctrl->id field is filled.

 *

 * Returns -EINVAL if the control is not known by the V4L2 core, 0 on success.

 */





int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);

int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl,

			 s32 min, s32 max, s32 step, s32 def);





/* ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */
@@ -172,12 +189,28 @@ const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type); 




struct spi_device;

struct spi_device;





/* Load an spi module and return an initialized v4l2_subdev struct.

/**

   The client_type argument is the name of the chip that's on the adapter. */

 *  v4l2_spi_new_subdev - Load an spi module and return an initialized

 *	&struct v4l2_subdev.

 *

 *

 * @v4l2_dev: pointer to &struct v4l2_device.

 * @master: pointer to struct spi_master.

 * @info: pointer to struct spi_board_info.

 *

 * returns a &struct v4l2_subdev pointer.

 */

struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,

struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,

		struct spi_master *master, struct spi_board_info *info);

		struct spi_master *master, struct spi_board_info *info);





/* Initialize a v4l2_subdev with data from an spi_device struct */

/**

 * v4l2_spi_subdev_init - Initialize a v4l2_subdev with data from an

 *	spi_device struct.

 *

 * @sd: pointer to &struct v4l2_subdev

 * @spi: pointer to struct spi_device.

 * @ops: pointer to &struct v4l2_subdev_ops

 */

void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,

void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,

		const struct v4l2_subdev_ops *ops);

		const struct v4l2_subdev_ops *ops);

#endif

#endif