From: Adam Goldberg (adam@microware.com)
Date: 07/21/92


From: adam@microware.com (Adam Goldberg)
Subject: Re: Query: Drivers for AHA >1522< ?
Date: 21 Jul 1992 13:36:59 GMT

chip@tct.com (Chip Salzenberg) writes:

>And, just to make followups more likely, (3) what is the difference
>between the 1542 and the 1522? Perspiring minds want to know!

The 1542 is a bus-mastering controller. This 1522 is not. That makes
the 1542 much faster (at least in a protected-mode OS like Linux, with
properly written drivers).

Given this difference, my inclination is that modifying the 1542 driver
to work with the 1522 *could* be significant work. (Or not, depending
on how far-sighted Adaptec is).

-- 
Adam G.
adamg@microware.com, or ...!uunet!mcrware!adamg
The above is not to be construed in any way as the official or unofficial
statements of Microware, or any of it's employees.