unsigned int data1 = 0;
                                unsigned int data2 = 0;
 
-                               lo = &iobase->channel[subdev].program_lo[addr];
-                               hi = &iobase->channel[subdev].program_hi[addr];
+                               lo = &iobase->block[subdev].program_lo[addr];
+                               hi = &iobase->block[subdev].program_hi[addr];
 
                                more = more &&
                                       read_idm_word(data, size, &pos, &data1);
        if (!spriv)
                return NULL;
 
-       spriv->sensor = &iobase->channel[s->index].sensor;
+       spriv->sensor = &iobase->block[s->index].sensor;
 
        for (j = 0; j < 8; j++) {
                spriv->range[j].l.length = 1;
 static void jr3_pci_show_copyright(struct comedi_device *dev)
 {
        struct jr3_t __iomem *iobase = dev->mmio;
-       struct jr3_sensor __iomem *sensor0 = &iobase->channel[0].sensor;
+       struct jr3_sensor __iomem *sensor0 = &iobase->block[0].sensor;
        char copy[ARRAY_SIZE(sensor0->copyright) + 1];
        int i;
 
 
        /* Reset DSP card */
        for (i = 0; i < dev->n_subdevices; i++)
-               writel(0, &iobase->channel[i].reset);
+               writel(0, &iobase->block[i].reset);
 
        ret = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
                                   "comedi/jr3pci.idm",