Messages in this thread | | | Date | Fri, 7 Aug 2009 22:32:26 +0200 | From | Johannes Stezenbach <> | Subject | Re: iwlwifi (4965) regression since 2.6.30 |
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On Thu, Aug 06, 2009 at 08:07:04PM -0300, Henrique de Moraes Holschuh wrote: > On Fri, 07 Aug 2009, Lukas Hejtmanek wrote: > > 0x0004 = 238 # KEY_WLAN > > This means any rfkill input handler (be it in kernel or userspace) will > toggle your WLAN cards when fn+f5 is pressed. You can just assign a > different keycode to it (use KEY_RESERVED or KEY_UNKNOWN if you don't want > the key to do anything). > > If you unmask the key on hotkey_mask, it will revert to BIOS actions, which > depending on the thinkpad, might cause it to operate on bluetooth, wwan, > etc...
I have a related question, sorry if I hijack the thread...
When thinkpad-acpi grew rfkill support a few kernel versions back it forced Bluetooth on at boot time. Since I almost never use Bluetooth I want it off to save power. The workaround I came up with was to enable CONFIG_RFKILL and add rfkill.default_state=0 to the kernel cmdline. Now this workaround also disables WLAN :-( My workaround for my workaround (heh!) was to add pre-up echo 1 > `ls /sys/class/ieee80211/phy0/rfkill*/state` in /etc/network/interfaces. It would be nice to have a better way to select boot-up defaults.
In Documentation/laptops/thinkpad-acpi.txt there is this comment for FN+F5:
Should be used to turn on/off all radios (Bluetooth+W-WAN+WLAN), really.
I disagree. Why would anyone turn off all radios at once? What I want is to disable the radios I don't need to save power, so IMHO there should be different keys for Bluetooth and WLAN (and W-WAN where present).
The BIOS does the right thing for me, it disables Bluetoth by default until enabled with Fn-F5, and WLAN is always enabled. For me the rfkill support is a regression, not progress.
Johannes
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