v4l2-device.h File Reference

#include <media/media-device.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-dev.h>

Go to the source code of this file.

Data Structures
struct	v4l2_device

Macros
#define	V4L2_DEVICE_NAME_SIZE   (20 + 16)
#define	v4l2_device_for_each_subdev(sd, v4l2_dev)   list_for_each_entry(sd, &(v4l2_dev)->subdevs, list)
#define	__v4l2_device_call_subdevs_p(v4l2_dev, sd, cond, o, f, args...)
#define	__v4l2_device_call_subdevs(v4l2_dev, cond, o, f, args...)
#define	__v4l2_device_call_subdevs_until_err_p(v4l2_dev, sd, cond, o, f, args...)
#define	__v4l2_device_call_subdevs_until_err(v4l2_dev, cond, o, f, args...)
#define	v4l2_device_call_all(v4l2_dev, grpid, o, f, args...)
#define	v4l2_device_call_until_err(v4l2_dev, grpid, o, f, args...)

Functions
int	v4l2_device_put (struct v4l2_device *v4l2_dev)
int __must_check	v4l2_device_register (struct device *dev, struct v4l2_device *v4l2_dev)
int	v4l2_device_set_name (struct v4l2_device *v4l2_dev, const char *basename, atomic_t *instance)
void	v4l2_device_disconnect (struct v4l2_device *v4l2_dev)
void	v4l2_device_unregister (struct v4l2_device *v4l2_dev)
int __must_check	v4l2_device_register_subdev (struct v4l2_device *v4l2_dev, struct v4l2_subdev *sd)
void	v4l2_device_unregister_subdev (struct v4l2_subdev *sd)
int __must_check	v4l2_device_register_subdev_nodes (struct v4l2_device *v4l2_dev)

Macro Definition Documentation

#define __v4l2_device_call_subdevs	(		v4l2_dev,
			cond,
			o,
			f,
			args...
	)

Value:

do {                                \
		struct v4l2_subdev *__sd;             \
									\
		__v4l2_device_call_subdevs_p(v4l2_dev, __sd, cond, o, \
                        f , ##args);        \
    } while (0)

Definition at line 137 of file v4l2-device.h.

#define __v4l2_device_call_subdevs_p	(		v4l2_dev,
			sd,
			cond,
			o,
			f,
			args...
	)

Value:

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);     \
    } while (0)

Definition at line 130 of file v4l2-device.h.

#define __v4l2_device_call_subdevs_until_err	(		v4l2_dev,
			cond,
			o,
			f,
			args...
	)

Value:

({                                  \
	struct v4l2_subdev *__sd;                  \
    __v4l2_device_call_subdevs_until_err_p(v4l2_dev, __sd, cond, o, \
                        f , ##args);        \
})

Definition at line 162 of file v4l2-device.h.

#define __v4l2_device_call_subdevs_until_err_p	(		v4l2_dev,
			sd,
			cond,
			o,
			f,
			args...
	)

Value:

({                                  \
    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;                      \
    }                               \
    (__err == -ENOIOCTLCMD) ? 0 : __err;                \
})

Definition at line 149 of file v4l2-device.h.

#define v4l2_device_call_all	(		v4l2_dev,
			grpid,
			o,
			f,
			args...
	)

Value:

do {                                \
		struct v4l2_subdev *__sd;             \
									\
		__v4l2_device_call_subdevs_p(v4l2_dev, __sd,      \
            !(grpid) || __sd->grp_id == (grpid), o, f , \
            ##args);                    \
    } while (0)

Definition at line 172 of file v4l2-device.h.

#define v4l2_device_call_until_err	(		v4l2_dev,
			grpid,
			o,
			f,
			args...
	)

Value:

({                                  \
	struct v4l2_subdev *__sd;                  \
    __v4l2_device_call_subdevs_until_err_p(v4l2_dev, __sd,      \
            !(grpid) || __sd->grp_id == (grpid), o, f , \
            ##args);                    \
})

Definition at line 185 of file v4l2-device.h.

#define v4l2_device_for_each_subdev	(		sd,
			v4l2_dev
	)		list_for_each_entry(sd, &(v4l2_dev)->subdevs, list)

Definition at line 124 of file v4l2-device.h.

#define V4L2_DEVICE_NAME_SIZE   (20 + 16)

Definition at line 35 of file v4l2-device.h.

Function Documentation

void v4l2_device_disconnect

(

struct v4l2_device *

v4l2_dev

)

Definition at line 92 of file v4l2-device.c.

int v4l2_device_put

(

struct v4l2_device *

v4l2_dev

)

Definition at line 70 of file v4l2-device.c.

int __must_check v4l2_device_register	(	struct device *	dev,
		struct v4l2_device *	v4l2_dev
	)

Definition at line 33 of file v4l2-device.c.

int __must_check v4l2_device_register_subdev	(	struct v4l2_device *	v4l2_dev,
		struct v4l2_subdev *	sd
	)

Definition at line 141 of file v4l2-device.c.

int __must_check v4l2_device_register_subdev_nodes

(

struct v4l2_device *

v4l2_dev

)

Definition at line 205 of file v4l2-device.c.

int v4l2_device_set_name	(	struct v4l2_device *	v4l2_dev,
		const char *	basename,
		atomic_t *	instance
	)

Definition at line 76 of file v4l2-device.c.

void v4l2_device_unregister

(

struct v4l2_device *

v4l2_dev

)

Definition at line 104 of file v4l2-device.c.

void v4l2_device_unregister_subdev

(

struct v4l2_subdev *

sd

)

Definition at line 255 of file v4l2-device.c.