linux-kernel - Re: Generic Disk Driver in Linux

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Message-ID: <20060824165401.GB19881@linux-mips.org>
Date:	Thu, 24 Aug 2006 17:54:01 +0100
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Daniel Rodrick <daniel.rodrick@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	kernelnewbies <kernelnewbies@...linux.org>,
	linux-newbie@...t.kernel.org, satinder.jeet@...il.com
Subject: Re: Generic Disk Driver in Linux

On Thu, Aug 24, 2006 at 06:17:59PM +0530, Daniel Rodrick wrote:

> I was curious that can we develop a generic disk driver that could
> handle all the kinds of hard drives - IDE, SCSI, RAID et al?
> 
> I thought we could use the BIOS interrupt 13H for this purpose, but
> ran into a LOT of real mode / protected mode issues.

A BIOS only contains a better than nothing quality driver, take the VESA
VLB driver as an example.  And lacks portability, upgrading is a pain.

  Ralf
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