writing drivers for xfree86 v4.x

[Nikhil Subhash Tiwari <nst8@columbia.edu>]

I see that you can basically allow fbScreenInit to handle setting the
pScreen fn pointers mostly to those defined in the fb/ folder, from
withing your xyzScreenInit.

But, I see that a lot of functions fb/ appear only to be stubs (i.e., they
trivially return TRUE) -- how then does the server actually take care of
hadnling these various requests from the client.  For example,

Bool
fbUnmapWindow(WindowPtr pWindow)
{
    return TRUE;
}

Thanks!

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