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From: dg@wrs.UUCP (David Goodenough)
Newsgroups: comp.sys.ibm.pc
Subject: Re: floppy formats
Message-ID: <256@wrs.UUCP>
Date: Fri, 17-Jul-87 17:41:40 EDT
Article-I.D.: wrs.256
Posted: Fri Jul 17 17:41:40 1987
Date-Received: Sun, 19-Jul-87 01:19:08 EDT
References: <832@pedsgo.UUCP>
Reply-To: dg@wrs.UUCP (David Goodenough)
Distribution: na
Organization: Wind River Systems, Emeryville, CA
Lines: 19
Summary: Info wanted

I've been thrown in the deep end a bit: I need to write a driver in C that
will access MS-DOS V3.0 (360K) disks: reading, writing, subdirectories, the
whole enchilada. I would be most grateful if someone could email me any
information on how they work, (i.e. where the FAT's live, what is the
structure of directories, what does a directory entry look like, how
are subdirectories handled etc. etc. etc. etc. Work on the assumption
that I know what tracks, sectors, heads, etc. are, but have absolutely
NO knowledge of what stuff MS-DOS itself is writing on the disk in the
way of file structure. (I just know about FAT's because I heard someone
mention them, I'm not sure what they are, but they seem to be important.

Thanks in advance for your help,
--
		dg@wrs.UUCP - David Goodenough

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