linux-kernel - Re: floppy question of the hour

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Message-ID: <20080528195947.GQ16162@csclub.uwaterloo.ca>
Date:	Wed, 28 May 2008 15:59:47 -0400
From:	lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
To:	Phillip Susi <psusi@....rr.com>
Cc:	Gene Heskett <gene.heskett@...il.com>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	linux-kernel@...r.kernel.org, Jens Axboe <axboe@...nel.dk>
Subject: Re: floppy question of the hour

On Wed, May 28, 2008 at 03:38:05PM -0400, Phillip Susi wrote:
> Lennart Sorensen wrote:
> >Just do what the Amiga did:  Read the entire track into a buffer in
> >memory, then deal with the sectors, and write the entire track back. :)
> 
> IIRC, there is no way to detect the interleave factor that the media has 
> been formatted with, unless you maybe try several and see which one 
> reads fastest.

Yeah, the Amiga trick wouldn't work.  The Amiga had no interleave.  It
didn't even have sector gaps.  Just 11 consequtive sectors worth of data
per track and one gap at the end of the track.  I really doubt any other
system could emulate that floppy access method without extra hardware.

-- 
Len Sorensen
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