RE: PCMCIA Power management

Familiar 0.4 comes with version 20 of wireless-tools. I built and ipkg'd
version 21 and put it in our demo feed:
ftp://lorien.handhelds.org/pub/linux/feeds/demo/ -- maybe it should be added
to the unstable feed.

Jamey

> -----Original Message-----
> From: Ross J. Reedstrom [mailto:reedstrm@rice.edu]
> Sent: Thursday, July 19, 2001 12:51 PM
> To: familiar@handhelds.org
> Subject: Re: [Familiar] PCMCIA Power management
>
>
> On Thu, Jul 19, 2001 at 04:26:49PM +0100, Will Stephenson wrote:
> > On Thursday 19 July 2001 2:48 pm, James ''Wez'' Weatherall wrote:
> > > Does anyone know how difficult it is to put a WaveLAN
> card into sleep mode
> > > from user space?
> > >
> > > Obviously, I could just use "cardctl eject" to do it, but
> that's rather
> > > heavyweight when all I really want to do is switch the
> card off for a short
> > > period to save power, without tearing down DHCP and so on.
> >
> > I'm experimenting myself, but do you think the various
> 'iwconfig eth0
> > power....' options might be useful here?
>
> Hmm, interesting. It seems the version of iwconfig on my ipaq
> is different
> than on my laptop, since the manpage on my laptop gives a
> power option that
> is not recognized (timeout) or, perhaps, not supported by the card.
> However, using:
>
> iwconfig eth0 power on
>
> Has some affect. On a relatively busy wireless network (university
> office/clasroom building) I get a barely visible, flickering
> power led,
> but the network stays up, and functional. When I browse slashdot.org
> with dillo, for example, the light comes on solid while loading.
>
> I'll try it in the other building, where there's a lot less wireless
> traffic. I'm guessing it'll go to sleep, and stay that way.
>
> Sounds like what James is looking for, perhaps?
>
> Ross
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Received on Thu Jul 19 11:40:57 2001