-- some extended capabilities are currently only partially decoded
-- finish PCI-X 2.0 capabilities
-- finish PCI Express support
-- reading of VPD
-- change machine-readable output?
-- "Class %04x" -> "%04x"
-- merge pcimodules?
+Capabilities with partial decoding:
+- PCIe 2nd set of control/status registers (have spec)
+- HyperTransport caps (have spec)
+
+Capabilities with no decoding:
+- VPD (have spec)
+- CompactPCI hot-swap
+- CompactPCI central resource control
+- AGP3
+- Secure device
+- SATA HBA (have spec)
+- Advanced features (have spec)
+- Advanced Error Reporting (ext'd)
+- Virtual Channel (ext'd)
+- Power Budgeting (ext'd)
+- Root Complex * (ext'd)
+- Multi-Function Virtual Channel (ext'd)
+- Root Bridge Control Block (ext'd)
+- Access Controls (ext'd)