Subject: Re: UDMA downgrading
To: Thomas Hertz <>
From: Manuel Bouyer <>
List: current-users
Date: 10/15/2003 23:50:27
On Wed, Oct 15, 2003 at 09:38:11PM +0200, Thomas Hertz wrote:
> I couldn't agree more. One improvement would be to downgrade the
> transfer mode one step at a time (udma133->udma100->udma66->udma33). As
> it is now it jumps straight at udma33 as soon as it encounters one
> little error.

Yes, because it assumes a 40wire cable which was misdetected as 80 (with
some adapters we can't detect this properly in the driver).
It shouldn't downgrade at the first error, it should need several if
it has run several commands previsouly without errors.

Manuel Bouyer <>
     NetBSD: 24 ans d'experience feront toujours la difference