uart_csreg Struct Reference

Control and status registers for the 16550 UART. More...

Data Fields
volatile uchar	buffer
volatile uchar	ier
volatile uchar	iir
volatile uchar	lcr
volatile uchar	mcr
volatile uchar	lsr
volatile uchar	msr
volatile uchar	scr

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Detailed Description

Control and status registers for the 16550 UART.

This structure is mapped directly to the base address for the CSR.

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Field Documentation

volatile uchar uart_csreg::buffer

receive buffer (read only)

OR transmit hold (write only)

volatile uchar uart_csreg::iir

interrupt ident (read only)

OR FIFO control (write only)