From mboxrd@z Thu Jan  1 00:00:00 1970
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Subject: Re: Do we need to implement sr START/STOP management
Date: Tue, 01 Nov 2011 09:53:32 +0400
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To: JiSheng Zhang <jszhang3@gmail.com>
Cc: linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org

On Tue, 2011-11-01 at 13:31 +0800, JiSheng Zhang wrote:
> Currently, there's no start/stop management in scsi cdrom driver to
> spin up/down the motor do we need to implement it?

Say more ... like what you think it buys.  The auto spin down of a CD
tends to be the best power control we have and it's not even clear that
manufacturers have implemented any other useful power states.

James