Re: [PATCH] x86: EuroBraille/Iris power off

From: H. Peter Anvin
Date: Wed Aug 25 2010 - 20:07:18 EST


On 08/25/2010 03:50 PM, Samuel Thibault wrote:
> H. Peter Anvin, le Wed 25 Aug 2010 14:19:55 -0700, a écrit :
>> At that point I'd almost prefer doing something like a BIOS signature
>> check if we can't do anything better.
>
> Well, there will be several versions of the BIOS signature, which the
> constructor is not likely to provide.
>

Then we'll gather them up, or something.

> Just to make sure there's no misunderstanding: it was never planned that
> this driver be loaded unless some manual intervention, like explicitly
> loadling the module or setting some parameter, so that if bad effects
> happen on the machine, the user can only get angry at himself for having
> loaded by hand a random module without reading the documentation that
> explicitly says (twice) it's only for a particular kind of hardware.
>
> I however now realize that I don't find a way to force a driver to be
> compiled only as a module. If there isn't, I guess we can just add
> a module parameter to enable/disable the driver, so that it won't be
> active by default even compiled-in?

There is, but that is hardly a reasonable solution.

What other forms of enumerable hardware is on this machine? PCI?

-hpa
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