linux-kernel - Re: Regression in 2.6.27-rcX caused by commit bc19d6e0b74ef03a3baf035412c95192b54dfc6f

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Message-Id: <200809162018.28548.carlos@strangeworlds.co.uk>
Date:	Tue, 16 Sep 2008 20:18:27 +0100
From:	Carlos Corbacho <carlos@...angeworlds.co.uk>
To:	bcm43xx-dev@...ts.berlios.de
Cc:	Larry Finger <Larry.Finger@...inger.net>,
	Michael Buesch <mb@...sch.de>,
	Adel Gadllah <adel.gadllah@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	wireless <linux-wireless@...r.kernel.org>
Subject: Re: Regression in 2.6.27-rcX caused by commit bc19d6e0b74ef03a3baf035412c95192b54dfc6f

On Tuesday 16 September 2008 18:08:48 Larry Finger wrote:
> I agree with Michael. From what I know, the only possible reason for
> having [RFKILL_STATE_HARD_BLOCKED] would be if user space could
> somehow affect the state of the hardware switch.

When I disable the b43 device in my laptop via acer-wmi (which in turn, calls 
into the laptops firmware), b43 physically cannot re-enable it (a not 
uncommon case on a lot of laptops). In which case, as far as b43 is 
concerned, the wireless radio is then in RFKILL_STATE_HARD_BLOCKED, since b43 
is unable to re-enable the radio on the hardware.

So yes, it is quite possible for b43 to be in RFKILL_STATE_HARD_BLOCKED.

-Carlos
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