Resending with correct subject: Adding support for an FPGA device (revision id 1) and came across a problem where FPGA sriov fails because the class id is 120001 versus 120000. BUT the '1' is the revision ID. That is: grep PCI_DEVICE_CLASS_FPGA ./sysinv/sysinv/sysinv/common/device.py PCI_DEVICE_CLASS_FPGA = '120000' But from here: https://wiki.osdev.org/PCI The PCI_DEVICE_CLASS_FPGA contains: class code, subclass, ProgIF, and Revision ID. Has anyone else seen this problem and is there a reason to include both ProgIF and Revision ID?