Re: [PATCH, RFC] Driver for reading HP laptop LCD brightness

From: Matthew Garrett
Date: Sun Feb 05 2006 - 09:43:34 EST


On Sun, Feb 05, 2006 at 03:41:42PM +0100, Arjan van de Ven wrote:

> .. and just disabling interrupts isn't going to work? Ok sure there is
> an SMP issue, but a spinlock ought to be able to fix that properly,
> instead of something this evil....

How do we get the BIOS to respect kernel spinlocks? (On the other hand,
there ought to be a spinlock there to deal with concurrent access in any
case, I guess)
--
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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