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Date: Fri, 04 Sep 2009 22:41:28 +0300
From: Alexander Motin <mav@FreeBSD.org>
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To: Eric Masson <emss@free.fr>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org
Subject: Re: svn commit: r196831 - head/sbin/camcontrol
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Eric Masson wrote:
> Alexander Motin <mav@FreeBSD.org> writes:
>> Author: mav
>> Date: Fri Sep  4 18:21:40 2009
>> New Revision: 196831
>> URL: http://svn.freebsd.org/changeset/base/196831
>>
>> Log:
>>   Add to `camcontrol cmd` support for sending arbitrary ATA commands.
>>   
>>   It could be used for broad range of tasks, such as configuring drive
>>   power management modes, caching, security and any other features and tasks,
>>   not supported by existing drivers.
> 
> Like controlling speed of DVD drives like this linux code snippet
> (speedcontrol.c) seems to be able to :
> http://ubuntuforums.org/archive/index.php/t-592513.html

It looks like using SCSI/ATAPI command, not an ATA. So it is supported
for long time. But the idea is right, it should be possible to control
it from command line.

-- 
Alexander Motin