Symbol: DTRACEIOC
usr/src/cmd/dtrace/test/cmd/badioctl/badioctl.c
37
#define DTRACEIOC (('d' << 24) | ('t' << 16) | ('r' << 8))
usr/src/uts/common/sys/dtrace.h
1256
#define DTRACEIOC (('d' << 24) | ('t' << 16) | ('r' << 8))