V4L2_BUF_FLAG_DONE
if (sc->sc_mmap[i].v4l2_buf.flags & V4L2_BUF_FLAG_DONE)
sc->sc_mmap[i].v4l2_buf.flags |= V4L2_BUF_FLAG_DONE;
sc->sc_mmap[qb->index].v4l2_buf.flags &= ~V4L2_BUF_FLAG_DONE;
mmap->v4l2_buf.flags &= ~(V4L2_BUF_FLAG_DONE|V4L2_BUF_FLAG_QUEUED);
sc->sc_mmap_cur->v4l2_buf.flags |= V4L2_BUF_FLAG_DONE;
sc->sc_mmap[qb->index].v4l2_buf.flags &= ~V4L2_BUF_FLAG_DONE;
mmap->v4l2_buf.flags &= ~V4L2_BUF_FLAG_DONE;