Subject: Re: ATA/ATAPI kernel redesign
To: David Laight <>
From: Manuel Bouyer <>
List: tech-kern
Date: 02/26/2002 20:16:45
On Mon, Feb 25, 2002 at 07:56:26PM +0000, David Laight wrote:
> Ah - but you could cable up lots of drives on your home system...
> The one I'm talking about can only ever access the 4 disks
> (if you want a CDROM you have to use an external SCSI one....)
> IIRC a big problem is detecting slave only configurations.
> The 30sec timeout is actually waiting for the master device
> to determine whether a slave is present.  I suspect 30 secs
> is allowing time for the slave to access its media in
> order to find out whether it is there or not.

It's 30s because the ATA draft says it must be 30s.

Manuel Bouyer, LIP6, Universite Paris VI.