binaryboy

Hi guys,

I have a program that interfaces with a PCI card and it works fine, except that the needed PCI base address either has to be hard-coded or entered by the user. Ideally I would prefer for the app to automatically detect the base address of the PCI card.

Is there a way to do this?

Sebastiani

Well, first of all, if you plan to use the address directly, don't bother - Windows won't let you directly access it, and even so, it can remap those kinds of things dynamically, anyway, so a physical address is practically useless. That said, Windows does have a standard interface for accessing hardware via IOCTL commands, though I have no idea what exactly would be needed to get access to the PCI card and it's statistics. Good luck.

binaryboy

I'm not accessing it 'directly' as such, the drivers/code supplied do the hard work and all that is needed is for the user (or so far just me hard-coding) to supply the base address (by going to the Device Manager, clicking on the desired PCI card and getting the values under the Resources tab).

I know that the base address is prone to change. I'm sure that this value must be held somewhere and accessible so that upon start-up, the program would retrieve the address.

Thanks anyway.

Codeplug

You can either use WMI or the SetupAPI. Both are equally fun. However, there are more examples using SetupAPI on the net - http://www.codeproject.com/KB/system/SimpleSetup.aspx

gg

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binaryboy

Thanks, will definitely take a look.

Also for anyone interested, or in the same boat, I'm currently checking out devcon.