kprintf.c File Reference

Implements the functions: kputc, kprintf. More...

#include <stddef.h>
#include <stdarg.h>
#include <device.h>
#include <stdio.h>
#include <uart.h>

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Functions
syscall	kputc (device *pdev, unsigned char c)
	kputc - perform a synchronous kernel write to the console tty
syscall	kgetc (device *pdev)
	kgetc - perform a synchronous kernel read from the console tty
syscall	kprintf (char *fmt,...)
	kprintf - kernel printf: formatted, unbuffered output to CONSOLE

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Detailed Description

Implements the functions: kputc, kprintf.

Id

kprintf.c 358 2007-10-11 20:56:25Z agember

Definition in file kprintf.c.

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Function Documentation

syscall kgetc

(

device *

pdev

)

kgetc - perform a synchronous kernel read from the console tty

Parameters:

	*pdev	pointer to device on which to write character
	c	character to write

Returns:

c on success, SYSERR on failure

Definition at line 56 of file kprintf.c.

References uart_csreg::ier, uart_csreg::lsr, NULL, SYSERR, and UART_LSR_DR.

syscall kprintf	(	char *	fmt,
			...
	)

kprintf - kernel printf: formatted, unbuffered output to CONSOLE

Parameters:

*fmt

pointer to string being printed

Returns:

OK on success

Definition at line 86 of file kprintf.c.

References _doprnt(), kputc(), and OK.

Referenced by allocRxBuffer(), backplaneInit(), dispatch(), etherControl(), etherInit(), exception(), libq_printqueue(), nulluser(), waitOnBit(), and xdone().

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syscall kputc	(	device *	pdev,
		unsigned char	c
	)

kputc - perform a synchronous kernel write to the console tty

Parameters:

	*pdev	pointer to device on which to write character
	c	character to write

Returns:

c on success, SYSERR on failure

Definition at line 21 of file kprintf.c.

References uart_csreg::ier, uart_csreg::lsr, NULL, SYSERR, and UART_LSR_TEMT.

Referenced by kprintf().

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