V4L2_MEMORY_OVERLAY
case V4L2_MEMORY_OVERLAY:
case V4L2_MEMORY_OVERLAY:
case V4L2_MEMORY_OVERLAY:
case V4L2_MEMORY_OVERLAY:
case V4L2_MEMORY_OVERLAY:
case V4L2_MEMORY_OVERLAY:
[V4L2_MEMORY_OVERLAY] = "overlay",