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Date:      Mon, 03 Dec 2007 08:30:56 +0100
From:      Laurent LEVIER <llevier-lists@argosnet.com>
To:        "Kevin Oberman" <oberman@es.net>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: Power savings on USB Hard drives 
Message-ID:  <20071203073101.B517C267E14@mx.levier.org>
In-Reply-To: <20071203002752.ADB184500E@ptavv.es.net>
References:  <Your message of "Sun, 02 Dec 2007 16:15:05 PST." <47534A89.3010403@root.org> <20071203002752.ADB184500E@ptavv.es.net>

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Hi Kevin,

At 01:27 03/12/2007, Kevin Oberman wrote:
>Almost all external USB drives use umass and are not handled as ATA but
>as SCSI. As such, camcontrol is the tool that should probably be
>used, but I have no such devices and I don't know what the appropriate
>command might be.
In fact, this is more compatible with whatI read.
camcontrol is used to control some USB devices, but I did not saw 
some things about power management + camcontrol...

>Asking on usb@ might provide the needed information.
?

Thanks

Brgrds 




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