On Tue, Sep 26, 2000 at 06:10:04PM +0300, Alexander Nazarenko wrote:

 > I have little programm for working with io :
 > #include <machine/types.h>
 > #include <machine/pio.h>
 > ...
 > 
 >  if (dummy=fopen("/dev/io", "r")) {
 >                  outb(port_addr, byte);
 >     fclose(dummy);
 >   }

This isn't how it works in NetBSD.  In NetBSD, do:

...
	i386_iopl(1);		/* enable I/O access */
	outb(port_addr, byte);
	i386_iopl(0);		/* disable I/O access */
...

Make sure you link with -li386.

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>