Re: Question: Etherenet Link Detection

Ben Greear (greearb@candelatech.com)
Wed, 26 Sep 2001 17:06:10 -0700

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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/