linux-kernel - Re: [PATCH v3 7/7] [SCSI] sr: adds Zero-power ODD support

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Message-ID: <4F76E054.8010301@computer.org>
Date:	Sat, 31 Mar 2012 12:45:40 +0200
From:	Jan Ceuleers <jan.ceuleers@...puter.org>
To:	Aaron Lu <aaron.lu@....com>
CC:	Alan Stern <stern@...land.harvard.edu>,
	Lin Ming <ming.m.lin@...el.com>,
	Zhang Rui <rui.zhang@...el.com>,
	Jeff Garzik <jgarzik@...ox.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Tejun Heo <tj@...nel.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-acpi <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v3 7/7] [SCSI] sr: adds Zero-power ODD support

On 30/03/12 03:07, Aaron Lu wrote:
> When the ODD is put to zero power state, it will not be able to handle
> commands like CDROMEJECT. We have to power it up first and then handle
> the ioctl request. Currently, we only power back up the ODD when user
> press the eject button as explained above.

What about slot-loading optical drives, where the user does not first 
have to press a button to open the tray (due to a lack of tray)?

Jan
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