Dan Williams <d...@redhat.com> writes:
>> State: LowPowerMode
>> LPM force flags - W_DISABLE:0, User:0, Temp:0, Volt:0, BIOS:1, GOBIIM:0
>> W_DISABLE: 0
>> Poweroff mode: 0
>> LPM Persistent: 0
>
> This says that it's BIOS that is forcing the device to be in low power
> mode. That means that the kernel rfkill drivers don't know how to
> handle WWAN rfkill on this laptop, and until that gets fixed you won't
> be able to use the card from coldboot under Linux :(
You wouldn't happen to know exactly what rfkill mechanism the modem
firmware means by 'BIOS'? And what about 'GOBIIM'?
As your example shows, 'W_DISABLE' was the only external LPM input of
the older 77xx modules ('User', 'Temp' and 'Volt' are all modem firmware
internal). And 'W_DISABLE' is simply pin 20 on the mini-PCIe connector,
usually controlled by the laptop rfkill circuitry. You can override
that with a piece of tape if necessarry.
I assume the new signals must be software interfaces, maybe some magic
shared config register or some sort of USB control message? But that
should also be documented in a spec somewhere. It is part of the
mini-PCIe host/device interface even if it is software based.
Bjørn
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