From d0b2f91bede3bd5e3d24dd6803e56eee959c1797 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Thu, 20 Oct 2016 00:10:27 -0300
Subject: Linux-libre 4.8.2-gnu

---
 include/media/v4l2-common.h | 92 +++++++++++++++++++++++++++++++++++++++------
 1 file changed, 80 insertions(+), 12 deletions(-)

(limited to 'include/media/v4l2-common.h')

diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 1cc0c5ba1..350cbf9fb 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -78,11 +78,26 @@
 			v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); 	\
 	} while (0)
 
-/* ------------------------------------------------------------------------- */
-
-/* Control helper function */
+/**
+ * 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);
 
 /* ------------------------------------------------------------------------- */
 
@@ -96,23 +111,60 @@ struct v4l2_device;
 struct v4l2_subdev;
 struct v4l2_subdev_ops;
 
-
-/* Load an i2c module and return an initialized v4l2_subdev struct.
-   The client_type argument is the name of the chip that's on the adapter. */
+/**
+ * v4l2_i2c_new_subdev - Load an i2c module and return an initialized
+ *	&struct v4l2_subdev.
+ *
+ * @v4l2_dev: pointer to &struct v4l2_device
+ * @adapter: pointer to struct i2c_adapter
+ * @client_type:  name of the chip that's on the adapter.
+ * @addr: I2C address. If zero, it will use @probe_addrs
+ * @probe_addrs: array with a list of address. The last entry at such
+ * 	array should be %I2C_CLIENT_END.
+ *
+ * returns a &struct v4l2_subdev pointer.
+ */
 struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
 		struct i2c_adapter *adapter, const char *client_type,
 		u8 addr, const unsigned short *probe_addrs);
 
 struct i2c_board_info;
 
+/**
+ * v4l2_i2c_new_subdev_board - Load an i2c module and return an initialized
+ *	&struct v4l2_subdev.
+ *
+ * @v4l2_dev: pointer to &struct v4l2_device
+ * @adapter: pointer to struct i2c_adapter
+ * @info: pointer to struct i2c_board_info used to replace the irq,
+ *	 platform_data and addr arguments.
+ * @probe_addrs: array with a list of address. The last entry at such
+ * 	array should be %I2C_CLIENT_END.
+ *
+ * returns a &struct v4l2_subdev pointer.
+ */
 struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
 		struct i2c_adapter *adapter, struct i2c_board_info *info,
 		const unsigned short *probe_addrs);
 
-/* Initialize a v4l2_subdev with data from an i2c_client struct */
+/**
+ * v4l2_i2c_subdev_init - Initializes a &struct v4l2_subdev with data from
+ *	an i2c_client struct.
+ *
+ * @sd: pointer to &struct v4l2_subdev
+ * @client: pointer to struct i2c_client
+ * @ops: pointer to &struct v4l2_subdev_ops
+ */
 void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
 		const struct v4l2_subdev_ops *ops);
-/* Return i2c client address of v4l2_subdev. */
+
+/**
+ * v4l2_i2c_subdev_addr - returns i2c client address of &struct v4l2_subdev.
+ *
+ * @sd: pointer to &struct v4l2_subdev
+ *
+ * Returns the address of an I2C sub-device
+ */
 unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd);
 
 enum v4l2_i2c_tuner_type {
@@ -137,12 +189,28 @@ const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type);
 
 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 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,
 		const struct v4l2_subdev_ops *ops);
 #endif
-- 
cgit v1.2.3-54-g00ecf