DEV_ATTR_RO 700 drivers/net/can/softing/softing_main.c DEV_ATTR_RO(serial, id.serial); DEV_ATTR_RO 702 drivers/net/can/softing/softing_main.c DEV_ATTR_RO(firmware_version, id.fw_version); DEV_ATTR_RO 704 drivers/net/can/softing/softing_main.c DEV_ATTR_RO(hardware_version, id.hw_version); DEV_ATTR_RO 705 drivers/net/can/softing/softing_main.c DEV_ATTR_RO(license, id.license);