v4l2-dev.h (f790c0ca6fad60b544bb73eda8cc841a6436725b) v4l2-dev.h (1babcb460f2b87c20eb6860b9685a0dab636cc4b)
1/*
2 *
3 * V 4 L 2 D R I V E R H E L P E R A P I
4 *
5 * Moved from videodev2.h
6 *
7 * Some commonly needed functions for drivers (v4l2-common.o module)
8 */

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27struct v4l2_ioctl_callbacks;
28struct video_device;
29struct v4l2_device;
30
31/* Flag to mark the video_device struct as registered.
32 Drivers can clear this flag if they want to block all future
33 device access. It is cleared by video_unregister_device. */
34#define V4L2_FL_REGISTERED (0)
1/*
2 *
3 * V 4 L 2 D R I V E R H E L P E R A P I
4 *
5 * Moved from videodev2.h
6 *
7 * Some commonly needed functions for drivers (v4l2-common.o module)
8 */

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27struct v4l2_ioctl_callbacks;
28struct video_device;
29struct v4l2_device;
30
31/* Flag to mark the video_device struct as registered.
32 Drivers can clear this flag if they want to block all future
33 device access. It is cleared by video_unregister_device. */
34#define V4L2_FL_REGISTERED (0)
35#define V4L2_FL_USES_V4L2_FH (1)
35
36struct v4l2_file_operations {
37 struct module *owner;
38 ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
39 ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
40 unsigned int (*poll) (struct file *, struct poll_table_struct *);
41 long (*ioctl) (struct file *, unsigned int, unsigned long);
42 long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);

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72 /* 'minor' is set to -1 if the registration failed */
73 int minor;
74 u16 num;
75 /* use bitops to set/clear/test flags */
76 unsigned long flags;
77 /* attribute to differentiate multiple indices on one physical device */
78 int index;
79
36
37struct v4l2_file_operations {
38 struct module *owner;
39 ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
40 ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
41 unsigned int (*poll) (struct file *, struct poll_table_struct *);
42 long (*ioctl) (struct file *, unsigned int, unsigned long);
43 long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);

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73 /* 'minor' is set to -1 if the registration failed */
74 int minor;
75 u16 num;
76 /* use bitops to set/clear/test flags */
77 unsigned long flags;
78 /* attribute to differentiate multiple indices on one physical device */
79 int index;
80
81 /* V4L2 file handles */
82 spinlock_t fh_lock; /* Lock for all v4l2_fhs */
83 struct list_head fh_list; /* List of struct v4l2_fh */
84
80 int debug; /* Activates debug level*/
81
82 /* Video standard vars */
83 v4l2_std_id tvnorms; /* Supported tv norms */
84 v4l2_std_id current_norm; /* Current tvnorm */
85
86 /* callbacks */
87 void (*release)(struct video_device *vdev);

--- 65 unchanged lines hidden --- 		85 int debug; /* Activates debug level*/
86
87 /* Video standard vars */
88 v4l2_std_id tvnorms; /* Supported tv norms */
89 v4l2_std_id current_norm; /* Current tvnorm */
90
91 /* callbacks */
92 void (*release)(struct video_device *vdev);

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