IL_CCK_BASIC_RATES_MASK
tx_beacon_cmd->tx.supp_rates[1] = (IL_CCK_BASIC_RATES_MASK & 0xF);
(IL_CCK_BASIC_RATES_MASK >> IL_FIRST_CCK_RATE) & 0xF;
(IL_CCK_BASIC_RATES_MASK | \
IL_CCK_BASIC_RATES_MASK)