SD_CHAIN_BUFIO
sd_xbuf_init(un, bp, xp, SD_CHAIN_BUFIO, NULL);
case SD_CHAIN_BUFIO:
SD_CHAIN_BUFIO, /* Index: 0 */
SD_CHAIN_BUFIO, /* Index: 1 */
SD_CHAIN_BUFIO, /* Index: 2 */
SD_CHAIN_BUFIO, /* Index: 3 */
SD_CHAIN_BUFIO, /* Index: 4 */
SD_CHAIN_BUFIO, /* Index: 5 */
SD_CHAIN_BUFIO, /* Index: 6 */
SD_CHAIN_BUFIO, /* Index: 7 */
SD_CHAIN_BUFIO, /* Index: 8 */
SD_CHAIN_BUFIO, /* Index: 9 */
SD_CHAIN_BUFIO, /* Index: 10 */
SD_CHAIN_BUFIO, /* Index: 11 */
SD_CHAIN_BUFIO, /* Index: 12 */
SD_CHAIN_BUFIO, /* Index: 13 */
SD_CHAIN_BUFIO, /* Index: 14 */
SD_CHAIN_BUFIO, /* Index: 15 */
SD_CHAIN_BUFIO, /* Index: 16 */
SD_CHAIN_BUFIO, /* Index: 17 */
SD_CHAIN_BUFIO, /* Index: 18 */
SD_CHAIN_BUFIO, /* Index: 26 */
SD_CHAIN_BUFIO, /* Index: 27 */
SD_CHAIN_BUFIO, /* Index: 28 */
SD_CHAIN_BUFIO, /* Index: 29 */
SD_CHAIN_BUFIO, /* Index: 30 */
SD_CHAIN_BUFIO, /* Index: 31 */
SD_CHAIN_BUFIO, /* Index: 32 */
SD_CHAIN_BUFIO, /* Index: 33 */
SD_CHAIN_BUFIO, /* Index: 34 */
(sd_chain_type_map[(xp)->xb_chain_iostart] == SD_CHAIN_BUFIO)