- struct lib_ring_buffer_backend *bufb;
- unsigned long sb_bindex;
- struct packet_header *header;
-
- bufb = &buf->backend;
- sb_bindex = subbuffer_id_get_index(config, bufb->buf_rsb.id);
- header = (struct packet_header *)
- lib_ring_buffer_offset_address(bufb,
- sb_bindex * bufb->chan->backend.subbuf_size);
-
- return header;