From mboxrd@z Thu Jan  1 00:00:00 1970
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
In-reply-to: Your message of "Fri, 04 Jan 2013 14:44:43 EST."
	<7521b5d1fdc0098bceb82c83660444bf@ladd.quanstro.net>
References: <20130104194803.02fa087b@zinc.9fans.fr>
	<6e680bde0bcfb96fa20d42f2371e075f@hamnavoe.com>
	<20130104202252.0b9bec10@zinc.9fans.fr>
	<7521b5d1fdc0098bceb82c83660444bf@ladd.quanstro.net>
Date: Fri,  4 Jan 2013 12:27:10 -0800
From: Bakul Shah <bakul@bitblocks.com>
Message-Id: <20130104202710.86B51B834@mail.bitblocks.com>
Subject: Re: [9fans] 9atom
Topicbox-Message-UUID: fe3624d0-ead7-11e9-9d60-3106f5b1d025

On Fri, 04 Jan 2013 14:44:43 EST erik quanstrom <quanstro@quanstro.net> wrote:
>
> it's a pretty consistent mistake in plan 9 (and elsewhere)=20
> that ide is confused with ata or sata.  these the are all
> on different levels.  "Disable DMA on IDE controllers."
>
> ide	device register set (analogue FIS)
> sata	on-the-wire protocol (analogue pata)
> ata	abstract command set.

Wikipedia says:

    The terms "integrated drive electronics" (IDE), "enhanced
    IDE" and "EIDE" have come to be used interchangeably with
    ATA (now Parallel ATA, or PATA).

This matches my understanding. Recall that IDE was essentially
ST-506 with all the analog bits done on the drive itself
(hence the name Integrated Drive Electronics).