111     class_code: u8,  in get_pci_device_structure_mut()
117         if (common_header.class_code == class_code) && (common_header.subclass == subclass) {  in get_pci_device_structure_mut()
130     class_code: u8,  in get_pci_device_structure()
136         if (common_header.class_code == class_code) && (common_header.subclass == subclass) {  in get_pci_device_structure()
353     pub class_code: u8, // 类代码，一个只读寄存器，指定设备执行的功能类型  field
664     let class_code = (result >> 24) as u8;  in pci_read_header()  localVariable
687         class_code,  in pci_read_header()
954     if (common_header.class_code == 0x06)  in pci_check_function()
1048 …ap_pointer={:#x}  vendor={:#x}, device id={:#x},bdf={}", common_header.class_code, common_header.s…  in pci_init()
1053                     common_header.class_code,  in pci_init()
1059 …ss code ={} subclass={} status={:#x} cap_pointer={:#x}", common_header.class_code, common_header.s…  in pci_init()
1064                     common_header.class_code,  in pci_init()
1072                     common_header.class_code,  in pci_init()