ray_cmd_tx
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_status, RAY_CCS_STATUS_BUSY);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_cmd, RAY_CMD_TX_REQ);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_link, RAY_CCS_LINK_NULL);
SRAM_WRITE_FIELD_2(sc, ccs, ray_cmd_tx, c_bufp, bufp);
SRAM_WRITE_FIELD_2(sc, ccs, ray_cmd_tx, c_len, pktlen);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_tx_rate, sc->sc_deftxrate);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_apm_mode, 0);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_antenna, 0);
SRAM_WRITE_FIELD_1(sc, RAY_GET_CCS(pi), ray_cmd_tx, c_link, i);