PCI_PRODUCT_INTEL_82820_MCH 349 arch/i386/pci/pchb.c case PCI_PRODUCT_INTEL_82820_MCH: PCI_PRODUCT_INTEL_82820_MCH 5591 dev/pci/pcidevs_data.h PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82820_MCH,