[karmic @ Sony Vaio with Intel Wireless WiFi Link 5100] No wlan interface after recent update

[Raphael Gradenwitz]

After update to Kernel 2.6.30-10-generic (AMD_64), I don't know what package caused this - I guess something with udev - no wlan interfaces are created.

I wrote some lines of code to make visible how it looks under the old Kernel where the interfaces are still created and how it looks now:
here the code:

 #!/bin/bash
 wlandevice="Wireless WiFi Link 5100"
 echo This shows the hal entries for \"$wlandevice\" device:
 echo
 echo -n "Used Kernel (uname -rvm): "
 uname -rvm
 echo

 find_dev_id () {
 pci_slot=`lspci -mm|grep -F \""$*"\"|sed -e "s/\( \)\{1\}.*$//"`
 echo "`lspci -s $pci_slot -n|\
       sed -e "s/^$pci_slot\( \)\{1\}\([0-9a-f]\)\{4\}:\( \)\{1\}/pci_/"\
           -e "y/:/_/" -e "s/\( \)\{1\}(rev.*$//"`"
 }

 wlancard=/org/freedesktop/Hal/devices/`find_dev_id $wlandevice`
 echo parent-device:
 echo ==============
 echo
 lshal -u $wlancard
 echo
 echo \'child\'-devices:
 echo ================

 for udi in `hal-find-by-property --key info.parent --string $wlancard`; do
     echo
     lshal -u $udi
 done

 # end of code

Here the two outputs:

1.)
This shows the hal entries for "Wireless WiFi Link 5100" device:

Used Kernel (uname -rvm): 2.6.30-9-generic #10-Ubuntu SMP Fri Jun 12 13:08:18 UTC 2009 x86_64

parent-device:
==============

udi = '/org/freedesktop/Hal/devices/pci_8086_4232'
  info.linux.driver = 'iwlagn' (string)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_2942' (string)
  info.product = 'Wireless WiFi Link 5100' (string)
  info.subsystem = 'pci' (string)
  info.udi = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.vendor = 'Intel Corporation' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'pci' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0' (string)
  pci.device_class = 2 (0x2) (int)
  pci.device_protocol = 0 (0x0) (int)
  pci.device_subclass = 128 (0x80) (int)
  pci.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0' (string)
  pci.product = 'Wireless WiFi Link 5100' (string)
  pci.product_id = 16946 (0x4232) (int)
  pci.subsys_product_id = 4865 (0x1301) (int)
  pci.subsys_vendor = 'Intel Corporation' (string)
  pci.subsys_vendor_id = 32902 (0x8086) (int)
  pci.vendor = 'Intel Corporation' (string)
  pci.vendor_id = 32902 (0x8086) (int)

'child'-devices:
================

udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_TX'
  info.addons.singleton = {'hald-addon-leds'} (string list)
  info.capabilities = {'leds'} (string list)
  info.category = 'leds' (string)
  info.interfaces = {'org.freedesktop.Hal.Device.Leds'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.subsystem = 'leds' (string)
  info.udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_TX' (string)
  leds.device_name = 'iwl-phy0' (string)
  leds.function = 'TX' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'leds' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0/leds/iwl-phy0::TX' (string)

udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_RX'
  info.addons.singleton = {'hald-addon-leds'} (string list)
  info.capabilities = {'leds'} (string list)
  info.category = 'leds' (string)
  info.interfaces = {'org.freedesktop.Hal.Device.Leds'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.subsystem = 'leds' (string)
  info.udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_RX' (string)
  leds.device_name = 'iwl-phy0' (string)
  leds.function = 'RX' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'leds' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0/leds/iwl-phy0::RX' (string)

udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_assoc'
  info.addons.singleton = {'hald-addon-leds'} (string list)
  info.capabilities = {'leds'} (string list)
  info.category = 'leds' (string)
  info.interfaces = {'org.freedesktop.Hal.Device.Leds'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.subsystem = 'leds' (string)
  info.udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_assoc' (string)
  leds.device_name = 'iwl-phy0' (string)
  leds.function = 'assoc' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'leds' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0/leds/iwl-phy0::assoc' (string)

udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_radio'
  info.addons.singleton = {'hald-addon-leds'} (string list)
  info.capabilities = {'leds'} (string list)
  info.category = 'leds' (string)
  info.interfaces = {'org.freedesktop.Hal.Device.Leds'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.subsystem = 'leds' (string)
  info.udi = '/org/freedesktop/Hal/devices/leds_iwl_phy0_radio' (string)
  leds.device_name = 'iwl-phy0' (string)
  leds.function = 'radio' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'leds' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0/leds/iwl-phy0::radio' (string)

udi = '/org/freedesktop/Hal/devices/pci_8086_4232_rfkill_5100AGN_wlan'
  info.addons.singleton = {'hald-addon-rfkill-killswitch'} (string list)
  info.capabilities = {'killswitch'} (string list)
  info.category = 'killswitch' (string)
  info.interfaces = {'org.freedesktop.Hal.Device.KillSwitch'} (string list)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.product = '5100AGN wlan Killswitch' (string)
  info.subsystem = 'rfkill' (string)
  info.udi = '/org/freedesktop/Hal/devices/pci_8086_4232_rfkill_5100AGN_wlan' (string)
  info.vendor = 'Intel Corporation' (string)
  killswitch.access_method = 'rfkill' (string)
  killswitch.name = '5100AGN' (string)
  killswitch.state = 1 (0x1) (int)
  killswitch.type = 'wlan' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'rfkill' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0/rfkill/rfkill2' (string)

udi = '/org/freedesktop/Hal/devices/net_00_21_5d_eb_8f_56_0'
  info.capabilities = {'net', 'net.80211control'} (string list)
  info.category = 'net.80211control' (string)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.product = 'Networking Wireless Control Interface' (string)
  info.subsystem = 'net' (string)
  info.udi = '/org/freedesktop/Hal/devices/net_00_21_5d_eb_8f_56_0' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'net' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0/net/wmaster0' (string)
  net.address = '00:21:5d:eb:8f:56' (string)
  net.arp_proto_hw_id = 801 (0x321) (int)
  net.interface = 'wmaster0' (string)
  net.linux.ifindex = 3 (0x3) (int)
  net.originating_device = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)

udi = '/org/freedesktop/Hal/devices/net_00_21_5d_eb_8f_56'
  info.capabilities = {'net', 'net.80211'} (string list)
  info.category = 'net.80211' (string)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.product = 'WLAN Interface' (string)
  info.subsystem = 'net' (string)
  info.udi = '/org/freedesktop/Hal/devices/net_00_21_5d_eb_8f_56' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'net' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0/net/wlan0' (string)
  net.80211.mac_address = 143309639510 (0x215deb8f56) (uint64)
  net.address = '00:21:5d:eb:8f:56' (string)
  net.arp_proto_hw_id = 1 (0x1) (int)
  net.interface = 'wlan0' (string)
  net.linux.ifindex = 4 (0x4) (int)
  net.originating_device = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)

2.)
This shows the hal entries for "Wireless WiFi Link 5100" device:

Used Kernel (uname -rvm): 2.6.30-10-generic #12-Ubuntu SMP Mon Jun 22 16:30:32 UTC 2009 x86_64

parent-device:
==============

udi = '/org/freedesktop/Hal/devices/pci_8086_4232'
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_2942' (string)
  info.product = 'Wireless WiFi Link 5100' (string)
  info.subsystem = 'pci' (string)
  info.udi = '/org/freedesktop/Hal/devices/pci_8086_4232' (string)
  info.vendor = 'Intel Corporation' (string)
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'pci' (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0' (string)
  pci.device_class = 2 (0x2) (int)
  pci.device_protocol = 0 (0x0) (int)
  pci.device_subclass = 128 (0x80) (int)
  pci.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.1/0000:06:00.0' (string)
  pci.product = 'Wireless WiFi Link 5100' (string)
  pci.product_id = 16946 (0x4232) (int)
  pci.subsys_product_id = 4865 (0x1301) (int)
  pci.subsys_vendor = 'Intel Corporation' (string)
  pci.subsys_vendor_id = 32902 (0x8086) (int)
  pci.vendor = 'Intel Corporation' (string)
  pci.vendor_id = 32902 (0x8086) (int)

'child'-devices:
================

(and here where I expect the interfaces there is .. nothing .. )

If one need more details, please ask me.

Raphael

[Raphael Gradenwitz (raphael-gradenwitz)]

OK, This can be closed. The reason (and the burg) was/is in the package
linux-backports-modules-2.6.30-10-generic
which I had inadvertently installed together with a bunch of updates.
After I completely removed the linux-backports-* it works again.

Raphael