linux-kernel - Re: how to get serial_no from usb HD disk (HDIO_GET

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Message-ID: <3ae72650701060715q4f036274xb6f8b664ab3233c@mail.gmail.com>
Date:	Sat, 6 Jan 2007 16:15:34 +0100
From:	"Kay Sievers" <kay.sievers@...y.org>
To:	"Greg KH" <greg@...ah.com>
Cc:	"Yakov Lerner" <iler.ml@...il.com>,
	"Kernel Linux" <linux-kernel@...r.kernel.org>
Subject: Re: how to get serial_no from usb HD disk (HDIO_GET_IDENTITY ioctl, hdparm -i)

On 1/6/07, Greg KH <greg@...ah.com> wrote:
> On Fri, Jan 05, 2007 at 12:27:34AM +0200, Yakov Lerner wrote:
> > How can I get serial_no from usb-attached HD drive ?
>
> use the *_id programs that come with udev, they show you how to properly
> do that.

Only "advanced" ATA-USB bridges will offer you the serial number the
adapter reads from the disk on power-up. The usual id-tools will just
work fine on theses bridges.

There is no way to reach that information with most of the cheap USB
storage-adapters.

Kay
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