2013-05-28 15:07:52

by Ulf Samuelsson

Subject: ath6kl_sdio blocked by RFKILL

Have built the ath6kl_sdio driver for an Cortex-A5 chip using the
linux-3.6.9 kernel
File system built using Yocto and Busybox RF-Kill.

Kernel Config contains:

CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set

When I do

# ifconfig wlan0 up.

I get the error message:

ifconfig: SIOCSIFFLAGS: Operation not possible due to RF-kill

If I run "rfkill list" I get

1: phy1: wlan
Soft blocked: yes
Hard blocked: no


If I try to unblock using "rfkill unblock all" or "wifi" or "wlan", the
soft block remains.

Any clues?

Looking through the Busybox rfkill code, this seems to generate an event.
What is supposed to react to this?
Could there be a rule, which is missing?

BR
Ulf Samuelsson

2013-06-01 12:34:27

by Kalle Valo

Subject: Re: ath6kl_sdio blocked by RFKILL

Ulf Samuelsson <[email protected]> writes:

> Have built the ath6kl_sdio driver for an Cortex-A5 chip using the
> linux-3.6.9 kernel
> File system built using Yocto and Busybox RF-Kill.
>
> Kernel Config contains:
>
> CONFIG_RFKILL=m
> CONFIG_RFKILL_LEDS=y
> CONFIG_RFKILL_INPUT=y
> # CONFIG_RFKILL_GPIO is not set
>
> When I do
>
> # ifconfig wlan0 up.
>
> I get the error message:
>
> ifconfig: SIOCSIFFLAGS: Operation not possible due to RF-kill
>
> If I run "rfkill list" I get
>
> 1: phy1: wlan
> Soft blocked: yes
> Hard blocked: no
>
>
> If I try to unblock using "rfkill unblock all" or "wifi" or "wlan",
> the soft block remains.

Have you tried "rfkill unblock 1"?

--
Kalle Valo

2013-06-05 11:24:26

by Ulf Samuelsson

Subject: Re: ath6kl_sdio blocked by RFKILL

On 2013-06-01 14:34, Kalle Valo wrote:
> Ulf Samuelsson <[email protected]> writes:
>
>> Have built the ath6kl_sdio driver for an Cortex-A5 chip using the
>> linux-3.6.9 kernel
>> File system built using Yocto and Busybox RF-Kill.
>>
>> Kernel Config contains:
>>
>> CONFIG_RFKILL=m
>> CONFIG_RFKILL_LEDS=y
>> CONFIG_RFKILL_INPUT=y
>> # CONFIG_RFKILL_GPIO is not set
>>
>> When I do
>>
>> # ifconfig wlan0 up.
>>
>> I get the error message:
>>
>> ifconfig: SIOCSIFFLAGS: Operation not possible due to RF-kill
>>
>> If I run "rfkill list" I get
>>
>> 1: phy1: wlan
>> Soft blocked: yes
>> Hard blocked: no
>>
>>
>> If I try to unblock using "rfkill unblock all" or "wifi" or "wlan",
>> the soft block remains.
> Have you tried "rfkill unblock 1"?
>

Yes, I have now been able to reproduce on another board.

The System has an MMC connector, and if I boot with my SD51 SDIO card in
the connector, then

"rfkill unblock <x>"

won't work, with x = {all,wifi,1 ...}

If I boot without the SD51 card beeing inserted, and then insert if
after theboot has been completed,
then rfkill works as expected.

The MMC host driver is built as a module, maybe it shouldn't.

BR
Ulf Samuelsson