ACPI_RDESC_TYPE_GENERAL_REGISTER is defined in aclocal.h, but doesn't seem to be parsed in rscalc.c. This means that devices with registers defined don't appear to show up acpi pnp dumps.
Will investigate
Please post an example if you have one.
Fixed in ACPICA version 20050916
ACPICA 20060127 shipped in Linux-2.6.16-rc1-git6 -- closing.