IOP_REG_DA0       860 drivers/scsi/advansys.c #define AscReadChipDA0(port)              (ushort)inpw((port)+IOP_REG_DA0)
IOP_REG_DA0       861 drivers/scsi/advansys.c #define AscWriteChipDA0(port)             outpw((port)+IOP_REG_DA0, data)