Register Mapping

The driver should map in its device's registers. The driver need to specify the following items:

• Register set index

• Data access characteristics of the device

• Size of the register to be mapped

ddi_device_acc_attr_t    dev_attributes;

     dev_attributes.devacc_attr_version = DDI_DEVICE_ATTR_V0;
     dev_attributes.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
     dev_attributes.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC;

     if (ddi_regs_map_setup(dip, 0, (caddr_t *)&isp->isp_reg,
     0, sizeof (struct ispregs), &dev_attributes,
     &isp->isp_acc_handle) != DDI_SUCCESS) {
        /* do error recovery */
        return (DDI_FAILURE);
     }