linux-kernel - Re: [PATCH 1/2] ideapad: No hardware switch after 2016

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Message-ID: <56C20556.7040900@canonical.com>
Date:	Tue, 16 Feb 2016 01:05:26 +0800
From:	Ike Panhc <ike.pan@...onical.com>
To:	Bjørn Mork <bjorn@...k.no>
Cc:	Darren Hart <dvhart@...radead.org>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ideapad: No hardware switch after 2016

On 02/15/2016 08:08 PM, Bjørn Mork wrote:
> Ike Panhc <ike.pan@...onical.com> writes:
> 
>> There are complains on few ideapads that wireless is always hard
>> blocked but there is no physical radio switch. For now, we need
>> each user to report its dmi information and ignore hard blocks
>> on their ideapad. With more and more ideapads available in market
>> to maintain the dmi table becomes never-ended job.
>>
>> I've checked lenovo website and for recent design none of the
>> ideapads has radio switch. I do not believe there will be in the
>> future. Therefore to disable hard block according to BIOS date is
>> reasonable approach.
>>
>> This patch will disable rfkill hardblock if BIOS year > 2015.
> 
> Huh?  And what happens when a user upgrades the BIOS on older hardware?
> 

That's why I believe > 2015 is a better choice, not > 2014.

Ideapads in market now carries BIOS year 2015 and I found no radio switch
on them. And I don't believe anyone will receive or upgrade BIOS for more
then 1y old machine. In fact I haven't heard anyone upgrading BIOS for a
long time.

--
Ike Panhc