From: Bernd Petrovitsch <bernd@firmix.at>
To: Matt Domsch <Matt_Domsch@dell.com>
Cc: Theewara Vorakosit <thvo@hpcnc.cpe.ku.ac.th>,
linux-kernel@vger.kernel.org,
Stephen Hemminger <shemminger@linux-foundation.org>
Subject: Re: Get physical MAC address
Date: Wed, 02 Jan 2008 10:31:25 +0100 [thread overview]
Message-ID: <1199266285.30753.14.camel@tara.firmix.at> (raw)
In-Reply-To: <20080102045800.GC10762@auslistsprd01.us.dell.com>
On Die, 2008-01-01 at 22:58 -0600, Matt Domsch wrote:
> On Mon, Dec 31, 2007 at 12:39:11PM +0700, Theewara Vorakosit wrote:
> > Hello,
> >
> > I get MAC address from ioctl. However, ifconfig can change this MAC
> > address. Can I get a real physical MAC address of the NIC?
>
> yes. It's ETHTOOL_GPERMADDR to the ethtool ioctl.
>
> case ETHTOOL_GPERMADDR:
> rc = ethtool_get_perm_addr(dev, useraddr);
> break;
>
> When the driver is first loaded, before ifconfig can change the MAC
> address, the existing (permanent) MAC address is stored away, able to
> be retrieved via this ioctl. Jon Wetzel, a Dell intern of a few
> summers ago, wrote the code and was able to have it included.
I stand corrected.
Last time I looked for such a thing it didn't exist.
Bernd
--
Firmix Software GmbH http://www.firmix.at/
mobil: +43 664 4416156 fax: +43 1 7890849-55
Embedded Linux Development and Services
next prev parent reply other threads:[~2008-01-02 9:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-31 5:39 Theewara Vorakosit
2008-01-01 23:07 ` Bernd Petrovitsch
2008-01-02 2:12 ` Stephen Hemminger
2008-01-02 2:42 ` Jon Masters
2008-01-02 3:12 ` Kyle Moffett
2008-01-02 4:58 ` Matt Domsch
2008-01-02 9:31 ` Bernd Petrovitsch [this message]
[not found] <9Gmk2-1M1-5@gated-at.bofh.it>
2007-12-31 11:11 ` Bodo Eggert
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