IXGBE_I2C_DATA_OUT
i2cctl |= IXGBE_I2C_DATA_OUT(hw);
i2cctl |= IXGBE_I2C_DATA_OUT(hw);
i2cctl |= IXGBE_I2C_DATA_OUT(hw);
*i2cctl |= IXGBE_I2C_DATA_OUT(hw);
*i2cctl &= ~IXGBE_I2C_DATA_OUT(hw);