FE_DAC            486 drivers/scsi/ncr53c8xx.h #define FE_DAC	 	(1<<24)   /* Support DAC cycles (64 bit addressing) */
FE_DAC             74 drivers/scsi/sym53c8xx_2/sym_defs.h #define FE_DAC		(1<<29)	  /* Support PCI DAC (64 bit addressing) */