CH341_LCR_ENABLE_TX
priv->lcr = CH341_LCR_ENABLE_RX | CH341_LCR_ENABLE_TX | CH341_LCR_CS8;
lcr = CH341_LCR_ENABLE_RX | CH341_LCR_ENABLE_TX;
CH341_LCR_ENABLE_RX | CH341_LCR_ENABLE_TX | CH341_LCR_CS8);
break_reg[1] &= ~CH341_LCR_ENABLE_TX;
break_reg[1] |= CH341_LCR_ENABLE_TX;