buf->vb.sequence = seqno++;
buf->vb.field = V4L2_FIELD_NONE;
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
vb2_set_plane_payload(&buf->vb.vb2_buf, 0, frame_size);
buf->vb.sequence = seqno++;
buf->vb.field = V4L2_FIELD_NONE;
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
vb2_set_plane_payload(&buf->vb.vb2_buf, 0, frame_size);