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From: Jeff Garzik <jgarzik@pobox.com>
To: Robert White <rwhite@casabyte.com>
Cc: Kumar Gala <kumar.gala@freescale.com>,
	Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: stupid SATA questions
Date: Wed, 08 Jun 2005 13:43:43 -0400	[thread overview]
Message-ID: <42A72E4F.4040700@pobox.com> (raw)
In-Reply-To: <42A711FE.2080004@casabyte.com>

Robert White wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> 
> 
> Since the title of the thread applies...
> 
> What command (or whatever) does one use to do things like set the power
> controls on a libata-controlled SATA drive?  hdparm doesn't seem to do
> anything but complain when I try to use the various features.

You need "ATA passthru" (SMART support) in order for hdparm to work.


> hdparm /dev/sda
> /dev/sda:
>  IO_support   =  0 (default 16-bit)
>  ...
> 
> Does the "16-bit" mean anything or is it just a bogon?

This is hardcoded.  I doubt you will ever be able to change this.

	Jeff



  reply	other threads:[~2005-06-08 17:44 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-07 14:43 stupid SATA questions Kumar Gala
2005-06-07 18:00 ` Jeff Garzik
2005-06-08 15:42   ` Robert White
2005-06-08 17:43     ` Jeff Garzik [this message]
2005-06-10 18:51       ` Robert White
2005-06-11 18:47         ` jgarzik
2005-06-12 13:56           ` Abhijit Bhopatkar
  -- strict thread matches above, loose matches on Subject: below --
2005-06-07 22:28 Aleksey Gorelov
2005-06-07 22:31 ` Jeff Garzik
2005-06-07 22:36 Aleksey Gorelov

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