Re: Dell Media Direct button

[Robert Millan]

On Thu, Aug 21, 2008 at 02:13:05PM +0200, Stefan Reinauer wrote:
> 
> The sequence of writing to port 0x70 / reading from port 0x71 reflects
> reading from the computer's "cmos" nvram memory.
> bit 7 of 0x70 is reserved for disabling NMIs, so the actual information
> is stored in byte 0x79[8] in the cmos.
> 
> To allow full flexibility, there should just be a module that allows
> reading / writing the cmos values (could also be useful for other
> things, such as reading a boot order set by the bios).

Ah, good catch.  For the record, we already have code that accesses cmos,
in the date handling functions recently added by Bean.

-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."