v4l2_capability   125 include/media/soc_camera.h 	int (*querycap)(struct soc_camera_host *, struct v4l2_capability *);
v4l2_capability    24 include/media/v4l2-ioctl.h 	int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap);
v4l2_capability  1994 include/uapi/linux/videodev2.h #define VIDIOC_QUERYCAP		 _IOR('V',  0, struct v4l2_capability)