From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <584d4c782bb352ee1d75be20ea93fbf6@quanstro.net>
From: erik quanstrom <quanstro@quanstro.net>
Date: Mon, 26 Nov 2007 07:48:16 -0500
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Tip of the day...
In-Reply-To: <b3e8b81b2deb32f1d8c4186ea01e4239@proxima.alt.za>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Topicbox-Message-UUID: 0bd3a78e-ead3-11e9-9d60-3106f5b1d025

how about
	
	#!/bin/rc
	# turn dma on with abandon

	# only sdata drives do this dma thing.
	# only tweek drives on this system (hence #S).
	d=`{awk '$2 == "ata" {print $1}'<'#S/sdctl'}

	for(i in '#S'/^$d^*/ctl)
		awk '$6 > 0 && $8 == 0 {print "echo dma on > " ENVIRON["i"]}'<$i |
		sed 's/#/''#''/g' |
		rc

- erik