PCI_MECH2_CONFIG_PORT
value = in8(PCI_MECH2_CONFIG_PORT(device, offset));
value = in16(PCI_MECH2_CONFIG_PORT(device, offset));
value = in32(PCI_MECH2_CONFIG_PORT(device, offset));
out8(value, PCI_MECH2_CONFIG_PORT(device, offset));
out16(value, PCI_MECH2_CONFIG_PORT(device, offset));
out32(value, PCI_MECH2_CONFIG_PORT(device, offset));