Hello
I need to work out some parallel port output signals.
I found a short program to test bits on that port.
It tells I need to set the permission with ioperm() as this:
Code:
#include <asm/io.h>
#include <iostream>
#include <cstdlib>
#include <unistd.h>
#define base 0x378 /* printer port base address */
#define value 255 /* numeric value to send to printer port */
using namespace std;
main(int argc, char **argv)
{
if (ioperm(base,1,1))
fprintf(stderr, "Couldn't get the port at %x\n", base), exit(1);
outb(value, base);
}
but when i try to compile it reports error:
`ioperm' undeclared (first use this function)
help pls.
