John Nemeth <jnemeth@victoria.tc.ca> wrote:
>      This is wrong.  ESDI drives respond to the IDENTIFY command, and
> possibly other "ATA" commands.  ESDI is a superset of the original
> WD1003 command set, and ATA is a superset of that.

I thought ESDI was an electrical interface between controller and
drive like ST506, not a controller command set like WD1003.

If something in an ESDI system responds to an ATA IDENTIFY command, 
it must be the controller, not the drive.
--
Andreas Gustafsson, gson@araneus.fi