On Sat, 13 Sep 2008 22:57:56 +0100 "Phil Endecott" <[EMAIL PROTECTED]> wrote:
> Dear All, > > I just tried to toggle my wifi and it didn't work, despite me having > claimed that I had it working smoothly with a very minimal script in > wireless.sh. > > The problem is this: the pciehp wasn't loaded, so the driver just > crashed when the hardware went away rather than being unloaded by the > kernel. I suspect that when I was testing it before the module had > been loaded by the earler more complex script and I had never unloaded > it during testing. > > I have now put pciehp in my /etc/modules along with options > pciehp_force=1 pciehp_slot_with_bus=1. Now I think it really does work > with this minimal wireless.sh script: > > wlan_control=/sys/devices/platform/eeepc/wlan > > case $1 in > on|enable) > echo 1 > $wlan_control > ;; > off|disable) > echo 0 > $wlan_control > ;; > *) > echo "Usage: $0 [on|off]" > exit 1 > ;; > esac > > > I have also tracked down exactly what happens after you write 1 or 0 to > $wlan_control. The chip is "unplugged" or "plugged" in to the bus, > which is detected by the pciehp module, and uevents are generated. You > can see these by running "udevadm monitor". The uevent goes to udevd > which has a rule in /etc/udev/rules.d/80-drivers.rules that invokes > /lib/udev/net.agent. For add, this calls "ifup --allow=hotplug ra0". > So, as long as you have a line in /etc/network/interfaces saying > "allow-hotplug ra0", it will try to bring up the interface. Similarly, > removing it will run ifdown. > > Most of you probably already understood all that, but I had never put > all the pieces together. > > Phil. Hi, thanks for putting the pieces together. I think, Damyan integrated the minimal settings for the 901 in his eeepc-acpi-scripts since 1.0.6 (which I used since then). But instead of 'allow-hotplug ra0', I have 'auto ra0' in my /etc/network/interfaces - and it works also perfectly (?!). I decided to choose 'auto ra0', because I use network-manager and this is written in its /usr/share/doc/network-manager/README.Debian: "Only devices that are *not* listed in /etc/network/interfaces or which have been configured "auto" and "dhcp" (with no other options) are managed by NM." After reading your mail, Phil, I'm unsure now, which allow-class should be preferred. oz _______________________________________________ Debian-eeepc-devel mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/debian-eeepc-devel
