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Date: Tue, 07 Nov 2000 11:55:22 -0800
From: "Howard Blue" <hblue@oaklandnet.com>
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Subject: C Programming using FreeBSD
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How to use outb( ) and inb( ) with gcc and FreeBSD?

The following program compiles and run in linux but it does not compile
using FreeBSD. It compiles in linux using: gcc -O2 prog1.c -o prog. It
dos NOT
compile using FreeBSD because of the include file "asm/io.h".

#include <stdio.h>
#include <unistd.h>
#include <asm/io.h>

#define BASEPORT 0x378 /* lpt port. */

int main()
{
/* Getting accesss to io port. */
if (ioperm(BASEPORT, 3, 1) {perror("ioperm"); exit(1);}

again:
    outb(0, BASEPORT);
    sleep(1);
    outb(0xFF, BASEPORT);
    sleep(1);
    printf("Testing...\n");\
goto again;
}

What changes would be necessary for a simillar program to work with
FreeBSD?

email: blujazz@earthlink.net.

Thanks.



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