On Sun, 30 Dec 2007, Alan Cox wrote: > On Sun, 30 Dec 2007 12:53:02 -0800 > "H. Peter Anvin" <[EMAIL PROTECTED]> wrote: > > Bodo Eggert wrote:
> > > I've never seen code which would do that, and it was not suggested by any > > > tutorial I ever saw. I'd expect any machine to break on all kinds of > > > software > > > if it required this. The only thing I remember being warned about is > > > writing > > > the index and the data register at the same time using outw, because that > > > would write both registers at the same time on 16-bit-cards. > > > > > > > And we use that, and have been for 15 years. I haven't seen any screams > > of pain about it. > > Actually there were, and I sent numerous people patches for that back in > ISA days. Are you talking about VGA cards requiring a delay between outb index/outb data, VGA cards barfing on outw or systems barfing on outb(0x80,42)? -- Programming is an art form that fights back. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
