[Debian-eeepc-devel] Fix for 2.6.26 PCI hotplug error when enabling wireless

Damyan Ivanov dmn at debian.org
Sat Aug 30 15:04:58 UTC 2008

-=| oz, Sat, Aug 30, 2008 at 03:51:16PM +0200 |=-
> On Sat, 30 Aug 2008 13:17:44 +0100
> "Phil Endecott" <phil_dlhbb_endecott at chezphil.org> wrote:
> > Can anyone explain why the existing code is like it is?  Why do we need 
> > to remove and re-load the pciehp module at all?
> Good question. Pciehp (hotplug-module) seems to be unnecessary on the
> 901. I deleted those entries in the toggle-on section, and wireless.sh
> work as good as before for me and is pretty simple now:

I guess you mean that unloading/reloading pciehp is not necessary and 
I agree with that.

OTOH, I giess there was a reason for it to be that way. If 701 owners 
can test that the simplification below (or a subset of it) works for 
them, I'd be happy to change the code.

At least on 901, if the whole wireless-on section is replaced solely 
with the echo 1 > $wlan_control toggling wireless on works here (901, 
bios 1101).

Another point I want to make is that the script as it is now - with 
all modprobe, ifconfig etc works for me. The only change I did is to 
rt2860 -- I disabled  the "native" network maanger support as I use 
wpa_cupplicant and with the "native" thing it didn't work.

>     on|enable)
>         if [ $(cat $wlan_control) = 0 ]; then
>             echo 1 > $wlan_control
>         fi
>         ;;
>     off|disable)
>         if [ $(cat $wlan_control) = 1 ]; then
>             detect_wlan
>             ifdown --force $WLAN_IF
>             modprobe -r $WLAN_MOD
>             echo 0 > $wlan_control
I guess the same approach can be taken here - stop fiddling with 
modprobe and let pciehp handle the removal of the hardware via 

> Could you please check, if my further simplified version works for 
> you also?

Here it works (901, BIOS 1101)

> Do you use any kind of network-manager?

Yes, network-manager-gnome is installed and running, but the wireless 
is managed via an "allow-hotplug ra0" and a roaming wpa_supplicant 
configuration. In fact, network-manager does not show the wireless 
interface at all so I think it does not interfere.

dam            JabberID: dam at jabber.minus273.org
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