MTW_TX_RTS_CFG
mtw_read(sc, MTW_TX_RTS_CFG, &tmp);
mtw_write(sc, MTW_TX_RTS_CFG, tmp);
mtw_read(sc, MTW_TX_RTS_CFG, &tmp);
mtw_write(sc, MTW_TX_RTS_CFG, tmp);
{ MTW_TX_RTS_CFG, 0x01100020 }, \