Subject: Re: cardbus and power
To: Wolfgang Rupprecht <>
From: Jason Thorpe <>
List: current-users
Date: 12/16/1999 15:23:48
On 16 Dec 1999 14:06:00 -0800 
 Wolfgang Rupprecht <> wrote:

 > One difference I now see between an ep0 on the pcic0 and tlp0 on cbb0
 > is that the ep used to turn off it's transceiver led (and I assume
 > power) with an "ifconfig ep0 down".  This left the machine in a nice
 > tidy state for 'zzz' and coasting on batteries.  On the cardbus/tlp
 > I'm seeing the power stay on after an "ifconfig tlp0 down".  In fact,
 > I even see the led on after a "zzz" and after the machine has
 > suspended itself.  I'm not complaining about the fine work folks have
 > done to put cardbus into the kernel, but I obviously can't really
 > leave it suspended with the card's power on.  This isn't going to be
 > good for the battery lifetime.

I plan on adding power management support to `tlp' and `ex' pretty soon.

        -- Jason R. Thorpe <>