Index: kernel/genarch/include/genarch/drivers/ns16550/ns16550.h
===================================================================
--- kernel/genarch/include/genarch/drivers/ns16550/ns16550.h	(revision 73abf491fd74e2df668b93ec7b38c266f85bac09)
+++ kernel/genarch/include/genarch/drivers/ns16550/ns16550.h	(revision 5e109e1dede8ff8cce30393b718b30ae302b32b1)
@@ -43,9 +43,25 @@
 #include <console/chardev.h>
 
-#define IER_ERBFI  0x01  /** Enable Receive Buffer Full Interrupt. */
+#define NS156440_CLOCK    115200 /** Internal clock speed, max. baud rate. */
 
-#define LCR_DLAB   0x80  /** Divisor Latch Access bit. */
+#define IER_ERBFI         0x01   /** Enable Receive Buffer Full Interrupt. */
+#define MCR_OUT2          0x08   /** OUT2. */
 
-#define MCR_OUT2   0x08  /** OUT2. */
+#define LCR_DLAB          0x80   /** Divisor Latch Access bit. */
+#define LCR_SBE           0x40   /** RS-232 Break Signal bit. */
+
+#define LCR_PARITY_NONE   0x00   /** No parity bit. */
+#define LCR_PARITY_ODD    0x08   /** Odd parity. */
+#define LCR_PARITY_EVEN   0x18   /** Even parity. */
+#define LCR_PARITY_MARK   0x28   /** Parity bit always one. */
+#define LCR_PARITY_SPACE  0x38   /** Parity bit always zero. */
+
+#define LCR_STOP_BIT_ONE  0x00   /** One stop bit. */
+#define LCR_STOP_BIT_TWO  0x04   /** Two stop bits. */
+
+#define LCR_WORD_LEN_5    0x00   /** 5-bit word length. */
+#define LCR_WORD_LEN_6    0x01   /** 6-bit word length. */
+#define LCR_WORD_LEN_7    0x02   /** 7-bit word length. */
+#define LCR_WORD_LEN_8    0x03   /** 8-bit word length. */
 
 /** NS16550 registers. */
@@ -53,5 +69,7 @@
 	NS16550_REG_RBR = 0,  /**< Receiver Buffer Register (read). */
 	NS16550_REG_THR = 0,  /**< Transmitter Holder Register (write). */
+	NS16550_REG_DLL = 0,  /**< Baud rate divisor latch low byte (write). */
 	NS16550_REG_IER = 1,  /**< Interrupt Enable Register. */
+	NS16550_REG_DLH = 1,  /**< Baud rate divisor latch high byte (write). */
 	NS16550_REG_IIR = 2,  /**< Interrupt Ident Register (read). */
 	NS16550_REG_FCR = 2,  /**< FIFO control register (write). */
@@ -73,4 +91,5 @@
 extern ns16550_instance_t *ns16550_init(ioport8_t *, unsigned, inr_t, cir_t,
     void *, outdev_t **);
+extern void ns16550_format_set(ns16550_instance_t *, unsigned, uint8_t);
 extern void ns16550_wire(ns16550_instance_t *, indev_t *);