DSPDATACTL 6607 drivers/scsi/aic7xxx/aic79xx_core.c ahd_outb(ahd, DSPDATACTL, ahd_inb(ahd, DSPDATACTL) DSPDATACTL 6635 drivers/scsi/aic7xxx/aic79xx_core.c ahd_outb(ahd, DSPDATACTL, DSPDATACTL 6636 drivers/scsi/aic7xxx/aic79xx_core.c ahd_inb(ahd, DSPDATACTL) & ~BYPASSENAB);