Technical Document #23


Technical Document #23

Doc ID: 23
Product: WinDriver & KernelDriver
Version:  --

Can I use WinDriver or KernelDriver to access AGP devices?

Yes. AGP is a PCI bus, just 4 times faster than the standard PCI bus. It is used for display/video cards, but from a software point of view it looks just like PCI. AGP cards appear as PCI cards to WinDriver/KernelDriver, and you are able to perform all operations on them. However, please note that this does not necessarily mean that you will be able to utilize the advanced features of this bus (such as the increased transfer rates) when using WinDriver/KernelDriver, since these tools do not currently include any special support for this bus.
Use KernelDriver if you want to write kernel mode AGP display drivers. Otherwise, it is generally preferable to use WinDriver - see Technical Document #3.

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