IOP_REG_AX        846 drivers/scsi/advansys.c #define AscReadChipAX(port)               (ushort)inpw((port)+IOP_REG_AX)
IOP_REG_AX        847 drivers/scsi/advansys.c #define AscWriteChipAX(port, data)        outpw((port)+IOP_REG_AX, data)