AR5210_MAX_RATE_POWER
AH_PRIVATE(ah)->ah_powerLimit = AR5210_MAX_RATE_POWER;
chan->ic_maxpower = AR5210_MAX_RATE_POWER;
AH_PRIVATE(ah)->ah_powerLimit = AH_MIN(limit, AR5210_MAX_RATE_POWER);
{ 0, 3, 6, 9, AR5210_MAX_RATE_POWER };