- * BUG: before sending a new character the TXC flag is cleared to allow
- * KDBG_WAIT_TXDONE() to work properly, but, if KDBG_WRITE_CHAR() is called
- * after the RXC flag is set by hardware, a new TXC could be generated
- * after we clear it and before the new character is put in UDR. In this
- * case if a 485 is used the transceiver will be put in RX mode while
- * transmitting the last char.
+ * We must clear the TXC flag before sending a new character to allow
+ * KDBG_WAIT_TXDONE() to work properly.
+ *
+ * BUG: if KDBG_WRITE_CHAR() is called after the TXC flag is set by hardware,
+ * a new TXC could be generated after we've cleared it and before the new
+ * character is written to UDR. On a 485 bus, the transceiver will be put
+ * in RX mode while still transmitting the last char.