From: Ben Greear <greearb@candelatech.com>
To: Peter Sandstrom <peter@zaphod.nu>
Cc: Robert Cantu <robert@tux.cs.ou.edu>, linux-kernel@vger.kernel.org
Subject: Re: Question: Etherenet Link Detection
Date: Wed, 26 Sep 2001 17:06:10 -0700 [thread overview]
Message-ID: <3BB26D72.69E02ED0@candelatech.com> (raw)
In-Reply-To: <CIEJKOKMAIAHDBBLFGFFEEOPCGAA.peter@zaphod.nu>
Peter Sandstrom wrote:
>
> I know for sure that the Intel 82559 Fast Ethernet embedded controller
> has a register where it's possible to read out if the link led is active
> or not. It seems quite likely that this would be available on other
> controllers as well.
>
> Is there any functionality in the current kernel that enables a userland
> program to read this? I mostly turn my machines on and and let them do
> their thing until the hardware fails :)
>
> /Peter
You can get this information out of any NIC that supports
the mii-diag protocols. The two I've used are the eepro100
and tulip drivers...
You can read Becker's mii-diag source for the gory details!
Ben
--
Ben Greear <greearb@candelatech.com> <Ben_Greear@excite.com>
President of Candela Technologies Inc http://www.candelatech.com
ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear
next prev parent reply other threads:[~2001-09-27 0:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-26 21:41 Question: Etherenet Link Detection Robert Cantu
2001-09-27 23:36 ` Peter Sandstrom
2001-09-26 23:39 ` Matthew Dharm
2001-09-26 23:49 ` Randy.Dunlap
2001-09-26 23:49 ` Tim Hockin
2001-09-27 0:10 ` Randy.Dunlap
2001-09-27 0:06 ` Ben Greear [this message]
2001-09-27 14:58 ` Robert Cantu
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