Subject: Re: cardbus and power
To: Wolfgang Rupprecht <wolfgang@wsrcc.com>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: current-users
Date: 12/16/1999 15:23:48
On 16 Dec 1999 14:06:00 -0800
Wolfgang Rupprecht <wolfgang@wsrcc.com> 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 <thorpej@nas.nasa.gov>