user space i/o to parallel port questions

[Bug Hunter]

    I'm running as root, trying to do i/o to one of the
parallel port areas using this program fragment:

main()
{

    iopl(2);

   outb(0,0x3bd);

}


    IOPL is successful.  However, I get a segmentation fault
at the outb() call.

    Can someone help me??

bug