struct pci_device_id {
	__u32 vendor, device;		/* 厂商和设备ID，Vendor and device ID or PCI_ANY_ID*/
	__u32 subvendor, subdevice;	/* 子系统和设备ID，Subsystem ID's or PCI_ANY_ID */
	__u32 class, class_mask;	/* 类、子类、prog-if三元组，(class,subclass,prog-if) triplet */
	kernel_ulong_t driver_data;	/* 驱动私有数据，Data private to the driver */
};