3 * V 4 L 2 D R I V E R H E L P E R A P I
5 * Moved from videodev2.h
7 * Some commonly needed functions for drivers (v4l2-common.o module)
12 #include <linux/poll.h>
14 #include <linux/device.h>
15 #include <linux/mutex.h>
16 #include <linux/compiler.h> /* need __user */
17 #ifdef CONFIG_VIDEO_V4L1_COMPAT
18 #include <linux/videodev.h>
20 #include <linux/videodev2.h>
23 /* Video standard functions */
24 extern const char *v4l2_norm_to_name(v4l2_std_id id);
25 extern int v4l2_video_std_construct(struct v4l2_standard *vs,
26 int id, const char *name);
27 /* Prints the ioctl in a human-readable format */
28 extern void v4l_printk_ioctl(unsigned int cmd);
30 /* names for fancy debug output */
31 extern const char *v4l2_field_names[];
32 extern const char *v4l2_type_names[];
34 /* Compatibility layer interface -- v4l1-compat module */
35 typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
36 unsigned int cmd, void *arg);
37 #ifdef CONFIG_VIDEO_V4L1_COMPAT
38 int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
39 int cmd, void *arg, v4l2_kioctl driver_ioctl);
41 #define v4l_compat_translate_ioctl(inode, file, cmd, arg, ioctl) (-EINVAL)
44 /* 32 Bits compatibility layer for 64 bits processors */
45 extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
48 extern int video_ioctl2(struct inode *inode, struct file *file,
49 unsigned int cmd, unsigned long arg);
51 /* Include support for obsoleted stuff */
52 extern int video_usercopy(struct inode *inode, struct file *file,
53 unsigned int cmd, unsigned long arg,
54 int (*func)(struct inode *inode, struct file *file,
55 unsigned int cmd, void *arg));
57 #endif /* _V4L2_IOCTL_H */