LEDCTL
led_ctrl = E1000_READ_REG(hw, LEDCTL);
E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
led_ctrl = E1000_READ_REG(hw, LEDCTL);
E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
E1000_WRITE_REG(hw, LEDCTL, led_ctl);
led_ctrl = E1000_READ_REG(hw, LEDCTL);
E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
ledctl = E1000_READ_REG(hw, LEDCTL);