Symbol: video_usercopy
drivers/media/v4l2-core/v4l2-ioctl.c
3532
return video_usercopy(file, cmd, arg, __video_do_ioctl);
drivers/media/v4l2-core/v4l2-subdev.c
1183
return video_usercopy(file, cmd, arg, subdev_do_ioctl_lock);
include/media/v4l2-ioctl.h
729
long int video_usercopy(struct file *file, unsigned int cmd,