v4l2_close        188 libavdevice/v4l2.c     v4l2_close(fd);
v4l2_close        978 libavdevice/v4l2.c     v4l2_close(s->fd);
v4l2_close       1018 libavdevice/v4l2.c     v4l2_close(s->fd);
v4l2_close       1080 libavdevice/v4l2.c         v4l2_close(s->fd);
v4l2_close       1091 libavdevice/v4l2.c             v4l2_close(s->fd);