diff --git a/drivers/comedi/drivers/dt2815.c b/drivers/comedi/drivers/dt2815.c
index 03ba2fd18a21..8e77c9851110 100644
--- a/drivers/comedi/drivers/dt2815.c
+++ b/drivers/comedi/drivers/dt2815.c
@@ -144,10 +144,15 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	const struct comedi_lrange *current_range_type, *voltage_range_type;
 	int ret;
 
+	printk(KERN_INFO "dt2815: it->options[0] = 0x%lx\n", it->options[0]);
+
 	ret = comedi_request_region(dev, it->options[0], 0x2);
 	if (ret)
 		return ret;
 
+	printk(KERN_INFO "dt2815: after comedi_request_region, dev->iobase = 0x%lx\n", dev->iobase);
+
+
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
 		return ret;
@@ -176,13 +181,18 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* Init the 2815 */
+	printk(KERN_INFO "dt2815: Before first outb, dev->iobase = 0x%lx\n", dev->iobase);
 	outb(0x00, dev->iobase + DT2815_STATUS);
+	printk(KERN_INFO "dt2815: After first outb\n");
+
 	for (i = 0; i < 100; i++) {
 		/* This is incredibly slow (approx 20 ms) */
 		unsigned int status;
 
 		usleep_range(1000, 3000);
+		printk(KERN_INFO "dt2815: Loop iteration %d, dev->iobase = 0x%lx\n", i, dev->iobase);
 		status = inb(dev->iobase + DT2815_STATUS);
+		printk(KERN_INFO "dt2815: status = 0x%x\n", status);
 		if (status == 4) {
 			unsigned int program;
 
@@ -195,8 +205,11 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			dev_dbg(dev->class_dev,
 				"unexpected status 0x%x (@t=%d)\n",
 				status, i);
-			if (status & 0x60)
+			if (status & 0x60) {
+				printk(KERN_INFO "dt2815: About to do second outb, dev = %px, dev->iobase = 0x%lx\n", dev, dev->iobase);
 				outb(0x00, dev->iobase + DT2815_STATUS);
+				printk(KERN_INFO "dt2815: After second outb\n");
+			}
 		}
 	}