From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Lord <liml@rtr.ca>
Subject: Re: [PATCH/RFC]: recovery from power-up-in-standby feature
Date: Sun, 04 Mar 2007 22:55:12 -0500
Message-ID: <45EB94A0.4010603@rtr.ca>
References: <45EB2F6D.7050407@rtr.ca> <45EB5825.501@garzik.org>
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To: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>, IDE/ATA development list <linux-ide@vger.kernel.org>

Jeff wrote:
> I think we would want to test bit 6 of IDENTIFY DEVICE word 83, issue SET FEATURES - SPIN UP command if set,
> otherwise do a READ VERIFY or some other media access command

The word-2 signature values already give us that information,
and I'm not certain that we can rely upon word 83 even being
"present" when a drive has not spun up.  I see lots of zeros
in the upper words of the IDENTIFY info from drives in this state.

Cheers