RTWN_RIDX_OFDM18
case 36: return (RTWN_RIDX_OFDM18);
(1 << RTWN_RIDX_OFDM18) | (1 << RTWN_RIDX_OFDM24);
SM(R92C_TXAGC_RATE18, power[RTWN_RIDX_OFDM18]));
power[RTWN_RIDX_OFDM18],
SM(R12A_TXAGC_OFDM18, power[RTWN_RIDX_OFDM18]));