Commit 65d7aba0 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab

[media] v4l2-device.h: fix some doc tags

Fix some minor issues at the documentation tags on this file,
adding cross-references where needed, and fixing some broken
ones.

While here, fix a few spaces before tabs to make Checkpatch happier.
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent daf3a4f7
......@@ -39,7 +39,7 @@ struct v4l2_ctrl_handler;
* if this struct is embedded into a larger struct.
* @name: unique device name, by default the driver name + bus ID
* @notify: notify callback called by some sub-devices.
* @ctrl_handler: The control handler. May be NULL.
* @ctrl_handler: The control handler. May be %NULL.
* @prio: Device's priority state
* @ref: Keep track of the references to this struct.
* @release: Release function that is called when the ref count
......@@ -53,8 +53,8 @@ struct v4l2_ctrl_handler;
*
* .. note::
*
* #) dev->driver_data points to this struct.
* #) dev might be NULL if there is no parent device
* #) @dev->driver_data points to this struct.
* #) @dev might be %NULL if there is no parent device
*/
struct v4l2_device {
......@@ -76,10 +76,10 @@ struct v4l2_device {
/**
* v4l2_device_get - gets a V4L2 device reference
*
* @v4l2_dev: pointer to struct v4l2_device
* @v4l2_dev: pointer to struct &v4l2_device
*
* This is an ancillary routine meant to increment the usage for the
* struct v4l2_device pointed by @v4l2_dev.
* struct &v4l2_device pointed by @v4l2_dev.
*/
static inline void v4l2_device_get(struct v4l2_device *v4l2_dev)
{
......@@ -89,23 +89,23 @@ static inline void v4l2_device_get(struct v4l2_device *v4l2_dev)
/**
* v4l2_device_put - putss a V4L2 device reference
*
* @v4l2_dev: pointer to struct v4l2_device
* @v4l2_dev: pointer to struct &v4l2_device
*
* This is an ancillary routine meant to decrement the usage for the
* struct v4l2_device pointed by @v4l2_dev.
* struct &v4l2_device pointed by @v4l2_dev.
*/
int v4l2_device_put(struct v4l2_device *v4l2_dev);
/**
* v4l2_device_register -Initialize v4l2_dev and make dev->driver_data
* point to v4l2_dev.
* v4l2_device_register - Initialize v4l2_dev and make @dev->driver_data
* point to @v4l2_dev.
*
* @dev: pointer to struct device
* @v4l2_dev: pointer to struct v4l2_device
* @dev: pointer to struct &device
* @v4l2_dev: pointer to struct &v4l2_device
*
* .. note::
* dev may be NULL in rare cases (ISA devices).
* In such case the caller must fill in the v4l2_dev->name field
* @dev may be %NULL in rare cases (ISA devices).
* In such case the caller must fill in the @v4l2_dev->name field
* before calling this function.
*/
int __must_check v4l2_device_register(struct device *dev,
......@@ -113,14 +113,14 @@ int __must_check v4l2_device_register(struct device *dev,
/**
* v4l2_device_set_name - Optional function to initialize the
* name field of struct v4l2_device
* name field of struct &v4l2_device
*
* @v4l2_dev: pointer to struct v4l2_device
* @v4l2_dev: pointer to struct &v4l2_device
* @basename: base name for the device name
* @instance: pointer to a static atomic_t var with the instance usage for
* the device driver.
* the device driver.
*
* v4l2_device_set_name() initializes the name field of struct v4l2_device
* v4l2_device_set_name() initializes the name field of struct &v4l2_device
* using the driver name and a driver-global atomic_t instance.
*
* This function will increment the instance counter and returns the
......@@ -132,7 +132,7 @@ int __must_check v4l2_device_register(struct device *dev,
*
* ...
*
* instance = v4l2_device_set_name(&v4l2_dev, "foo", &drv_instance);
* instance = v4l2_device_set_name(&\ v4l2_dev, "foo", &\ drv_instance);
*
* The first time this is called the name field will be set to foo0 and
* this function returns 0. If the name ends with a digit (e.g. cx18),
......@@ -147,16 +147,16 @@ int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
* @v4l2_dev: pointer to struct v4l2_device
*
* Should be called when the USB parent disconnects.
* Since the parent disappears, this ensures that v4l2_dev doesn't have
* Since the parent disappears, this ensures that @v4l2_dev doesn't have
* an invalid parent pointer.
*
* .. note:: This function sets v4l2_dev->dev to NULL.
* .. note:: This function sets @v4l2_dev->dev to NULL.
*/
void v4l2_device_disconnect(struct v4l2_device *v4l2_dev);
/**
* v4l2_device_unregister - Unregister all sub-devices and any other
* resources related to v4l2_dev.
* resources related to @v4l2_dev.
*
* @v4l2_dev: pointer to struct v4l2_device
*/
......@@ -165,8 +165,8 @@ void v4l2_device_unregister(struct v4l2_device *v4l2_dev);
/**
* v4l2_device_register_subdev - Registers a subdev with a v4l2 device.
*
* @v4l2_dev: pointer to struct v4l2_device
* @sd: pointer to struct v4l2_subdev
* @v4l2_dev: pointer to struct &v4l2_device
* @sd: pointer to struct &v4l2_subdev
*
* While registered, the subdev module is marked as in-use.
*
......@@ -179,7 +179,7 @@ int __must_check v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
/**
* v4l2_device_unregister_subdev - Unregisters a subdev with a v4l2 device.
*
* @sd: pointer to struct v4l2_subdev
* @sd: pointer to struct &v4l2_subdev
*
* .. note ::
*
......@@ -191,7 +191,7 @@ void v4l2_device_unregister_subdev(struct v4l2_subdev *sd);
/**
* v4l2_device_register_subdev_nodes - Registers device nodes for all subdevs
* of the v4l2 device that are marked with
* the V4L2_SUBDEV_FL_HAS_DEVNODE flag.
* the %V4L2_SUBDEV_FL_HAS_DEVNODE flag.
*
* @v4l2_dev: pointer to struct v4l2_device
*/
......@@ -201,9 +201,9 @@ v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev);
/**
* v4l2_subdev_notify - Sends a notification to v4l2_device.
*
* @sd: pointer to struct v4l2_subdev
* @sd: pointer to struct &v4l2_subdev
* @notification: type of notification. Please notice that the notification
* type is driver-specific.
* type is driver-specific.
* @arg: arguments for the notification. Those are specific to each
* notification type.
*/
......@@ -222,7 +222,7 @@ static inline void v4l2_subdev_notify(struct v4l2_subdev *sd,
Ignore any errors. Note that you cannot add or delete a subdev
while walking the subdevs list. */
#define __v4l2_device_call_subdevs_p(v4l2_dev, sd, cond, o, f, args...) \
do { \
do { \
list_for_each_entry((sd), &(v4l2_dev)->subdevs, list) \
if ((cond) && (sd)->ops->o && (sd)->ops->o->f) \
(sd)->ops->o->f((sd) , ##args); \
......@@ -241,15 +241,15 @@ static inline void v4l2_subdev_notify(struct v4l2_subdev *sd,
return with that error code. Note that you cannot add or delete a
subdev while walking the subdevs list. */
#define __v4l2_device_call_subdevs_until_err_p(v4l2_dev, sd, cond, o, f, args...) \
({ \
({ \
long __err = 0; \
\
list_for_each_entry((sd), &(v4l2_dev)->subdevs, list) { \
if ((cond) && (sd)->ops->o && (sd)->ops->o->f) \
__err = (sd)->ops->o->f((sd) , ##args); \
if (__err && __err != -ENOIOCTLCMD) \
break; \
} \
break; \
} \
(__err == -ENOIOCTLCMD) ? 0 : __err; \
})
......@@ -276,7 +276,7 @@ static inline void v4l2_subdev_notify(struct v4l2_subdev *sd,
match them all). If the callback returns an error other than 0 or
-ENOIOCTLCMD, then return with that error code. Note that you cannot
add or delete a subdev while walking the subdevs list. */
#define v4l2_device_call_until_err(v4l2_dev, grpid, o, f, args...) \
#define v4l2_device_call_until_err(v4l2_dev, grpid, o, f, args...) \
({ \
struct v4l2_subdev *__sd; \
__v4l2_device_call_subdevs_until_err_p(v4l2_dev, __sd, \
......@@ -300,8 +300,8 @@ static inline void v4l2_subdev_notify(struct v4l2_subdev *sd,
/*
* Call the specified callback for all subdevs where grp_id & grpmsk != 0
* (if grpmsk == `0, then match them all). If the callback returns an error
* other than 0 or -ENOIOCTLCMD, then return with that error code. Note that
* (if grpmsk == 0, then match them all). If the callback returns an error
* other than 0 or %-ENOIOCTLCMD, then return with that error code. Note that
* you cannot add or delete a subdev while walking the subdevs list.
*/
#define v4l2_device_mask_call_until_err(v4l2_dev, grpmsk, o, f, args...) \
......
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