The Design and Implementation of laffer1

When I added PCIe extended config support, I never took into
consderation the userland access point of view.  Changing this
definition to 4096 might Just Work, and it might Not Work.  Dunno.
In the 18 months since I implemented it, no other person has asked
about userland access.  Other than the silly case of people trying
to write device drivers in PERL, I'm not sure how much value it
gives compared to the stability and security risk it imposes.

Scott