sonet_stats        27 include/linux/sonet.h #define SONET_GETSTAT	_IOR('a',ATMIOC_PHYTYP,struct sonet_stats)
sonet_stats        29 include/linux/sonet.h #define SONET_GETSTATZ	_IOR('a',ATMIOC_PHYTYP+1,struct sonet_stats)