cfctrl            118 include/net/caif/cfctrl.h void cfctrl_enum_req(struct cflayer *cfctrl, u8 physlinkid);
cfctrl            119 include/net/caif/cfctrl.h int cfctrl_linkup_request(struct cflayer *cfctrl,
cfctrl            122 include/net/caif/cfctrl.h int  cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid,