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Re: Intel Controller Hub 7
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Re: Intel Controller Hub 7



I found a utility called wpcredit which allows you to navigate to the bus -> dev -> function and change the values of the registers. This is exactly what I need but I need a command line util so I can automate it.

I think I found a win32 port for PCI Utils which include setpci, trying to compile and install this now.

I think the ideal would actually be if I can create an EFI application to change the register. That way you can ensure the setting is changed as early as possible if there were to be a power failure before the mac mini actually gets a chance to boot back into Windows and run the script.


On 09 Feb 2007, at 6:35 PM, William Reading wrote:

In principle, implementing something to just set the PCI register is pretty straightforward in Windows, but I believe you might actually have to write a driver (http://www.microsoft.com/whdc/ devtools/ddk/default.mspx) to access that memory space.

Your best bet if you just want to set that value is to see if someone's written something similar to setpci for windows that you can run on startup. I'm going to guess that there's not a way to make it preserved between boots if simply setting it on the Mac OS X side doesn't make it stick.

Also, what do you mean by, "Editing the PCI register for the ICH7 bus manually"? Are you using some tool specifically geared for editing the PCI space already?

--Bill

On Feb 9, 2007, at 7:29 AM, Nico Du Plessis wrote:

Right, so here is the deal.

I am trying to get a Mac Mini running Windows (Boot Camp) to start up automatically after a power failure. It is very easy to do this in Mac OS X from the preferences. The same goes for Linux. But in Windows there is no easy way to do this. The article on http:// www.mythic-beasts.com/support/macminicolo_howto.html describes how this can be achieved. It is easy to do this in Windows by editing the PCI register for the ICH7 bus manually but I have not found a way to automate this with each boot as settings are not preserved.

Is there anyone that knows how to configure a PCI through C++?

Any help would be appreciated
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References: 
 >Intel Controller Hub 7 (From: Nico Du Plessis <email@hidden>)
 >Re: Intel Controller Hub 7 (From: William Reading <email@hidden>)



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