Wireless LED always on

[Gordian Klein <gordian.klein@googlemail.com>]

Hello,

i have a Sony Vaio SVS1511V9EB with an Intel(R) Centrino(R) Advanced-N
6235 AGN wireless card. The card is working fine, but the wireless LED
on my laptop is always on. No matter if i disable the wifi device via
NetworkManager or "rfkill block all". I set the iwlwifi led_mode
parameter to 1 (and to 2 for testing), but this didnt do anything to the
LED, it was constantly on. Id like it to be off when the wifi device is
disabled.
This is a log of dmesg:

# dmesg | grep iwl[    3.955915] iwlwifi 0000:02:00.0: irq 46 for MSI/MSI-X
[    3.965170] iwlwifi 0000:02:00.0: loaded firmware version 18.168.6.1
[    3.972206] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEBUG enabled
[    3.972211] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[    3.972213] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[    3.972216] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
[    3.972218] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_P2P disabled
[    3.972221] iwlwifi 0000:02:00.0: Detected Intel(R) Centrino(R)
Advanced-N 6235 AGN, REV=0xB0
[    3.972302] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    3.992851] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[    4.977782] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    4.985059] iwlwifi 0000:02:00.0: Radio type=0x2-0x1-0x0
[    5.359698] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    5.366473] iwlwifi 0000:02:00.0: Radio type=0x2-0x1-0x0

I verified the led_mode parameter is set correctly with :

# cat /sys/module/iwlwifi/parameters/led_mode
1

I am running openSuse 12.2 x64 with Kernel 3.9.3-10.g06ad9d8-desktop.

Thanks for any hint.

Gordian