staging: comedi: dt2815: convert printk's in dt2815_attach()

These messages don't appear to be important enough to warrent KERN_INFO
and KERN_WARNING levels. Convert them dev_dbg().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/dt2815.c

@@ -202,12 +202,13 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			unsigned int program;
 			program = (it->options[4] & 0x3) << 3 | 0x7;
 			outb(program, dev->iobase + DT2815_DATA);
-			printk(KERN_INFO ", program: 0x%x (@t=%d)\n",
-			       program, i);
+			dev_dbg(dev->class_dev, "program: 0x%x (@t=%d)\n",
+				program, i);
 			break;
 		} else if (status != 0x00) {
-			printk(KERN_WARNING "dt2815: unexpected status 0x%x "
-			       "(@t=%d)\n", status, i);
+			dev_dbg(dev->class_dev,
+				"unexpected status 0x%x (@t=%d)\n",
+				status, i);
 			if (status & 0x60)
 				outb(0x00, dev->iobase + DT2815_STATUS);
 		}