Subject: Re: apm (Re: Anyone running NetBSD on an IBM ThinkPad [A|T]21?)
To: Ken Hornstein <kenh@cmf.nrl.navy.mil>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-i386
Date: 01/24/2001 21:52:00
On Tue, Jan 23, 2001 at 05:43:09PM -0500, Ken Hornstein wrote:
> >> if i "atactl wd0 setidle 0" the disk runs constantly and the 
> >> errors do not occur.
> >> 
> >> i was hoping Manuel might have some ideas about this?
> >
> >This is because there's no wau for the driver to know whenever the drive is
> >off or not, it has to try a command and wait for it to fail to reset the drive,
> >which will make it power up.
> 
> My reading of the ATA spec says that the IDLE state shouldn't require a
> reset to exit it; the drive should spin up for you.  It's been my

You're rigth; it's sleep mode that needs a reset.

--
Manuel Bouyer <bouyer@antioche.eu.org>
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