Symbol: V4L2_FIELD_NONE
sys/dev/usb/utvfu.c
1687
sc->sc_mmap[i].v4l2_buf.field = V4L2_FIELD_NONE;
sys/dev/usb/uvideo.c
4000
sc->sc_mmap[i].v4l2_buf.field = V4L2_FIELD_NONE;