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Date: Fri, 08 Feb 2002 00:16:33 +0000
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
From: Anton Altaparmakov <aia21@cam.ac.uk>
Subject: Re: [PATCH] Fix floppy io ports reservation
Cc: dwguest@win.tue.nl (Guest section DW), linux-kernel@vger.kernel.org
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At 21:54 07/02/02, Alan Cox wrote:
> > > I asked a friend to check and on his Windows 2000 system the port
> > > reservation was 0x3f2-0x3f5 + 0x3f7, i.e. it just excludes ports
> > > 0x3f0-0x3f1, which are NOT used anywhere in the driver anyway.
> >
> > ports 0x3f0 and 0x3f1 are used on certain PS/2 systems
> > and on some very old AT clones
>
>The driver must only reserve those ports on machines which needed them and
>when it needs them (which it never actually does). The ports are used for
>other superio related things on newer machines

Indeed, I couldn't find any code making use of the 0x3f0 and 0x3f1 ports, 
hence why I put forward my patch... If someone would like to prove me wrong 
here, please do so. (-:

Best regards,

Anton


-- 
   "I've not lost my mind. It's backed up on tape somewhere." - Unknown
-- 
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Linux NTFS Maintainer / WWW: http://linux-ntfs.sf.net/
ICQ: 8561279 / WWW: http://www-stu.christs.cam.ac.uk/~aia21/

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