From: Tony Vroon <tony@vroon.org>
To: "Toralf Förster" <toralf.foerster@gmx.de>
Cc: linux-acpi@vger.kernel.org, ibm-acpi-devel@lists.sourceforge.net
Subject: Re: Bluetooth driver vs RFKILL state LED
Date: Sun, 28 Dec 2008 13:43:03 +0000 [thread overview]
Message-ID: <49578267.6020401@vroon.org> (raw)
In-Reply-To: <200812281224.41223.toralf.foerster@gmx.de>
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Toralf Förster wrote:
> I'm wondering why at my ThinkPad T41 the bluetooth LED is on even if I did not
> compiled bluetooth support into the kernel nor as module.
That LED indicates whether the Bluetooth radio is enabled (powered up,
it is a USB device). Consider it like a light socket. You don't have a
working bulb in there, but you can still switch the socket on & off.
You see the results of your switching the moment you screw in a working
lightbulb (load your Bluetooth driver).
It would in fact be a layering violation to care about whether or not a
Bluetooth driver is loaded when switching the radio on & off. If you
want your Bluetooth to start out off and remain off, you should set your
BIOS up accordingly.
Regards,
Tony V.
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prev parent reply other threads:[~2008-12-28 13:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-28 11:24 (unknown) Toralf Förster
2008-12-28 13:43 ` Tony Vroon [this message]
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