R92C_TXDW4_RTSEN
R92C_TXDW4_RTSEN |
txd->txdw4 |= htole32(R92C_TXDW4_RTSEN);
if (txd->txdw4 & htole32(R92C_TXDW4_RTSEN | R92C_TXDW4_CTS2SELF)) {