int comedi_alloc_subdevices(struct comedi_device *, int);
+int comedi_request_region(struct comedi_device *,
+ unsigned long start, unsigned long len);
+
int comedi_auto_config(struct device *, struct comedi_driver *,
unsigned long context);
void comedi_auto_unconfig(struct device *);
pr_info(" %s\n", driv->driver_name);
}
+/**
+ * comedi_request_region() - Request an I/O reqion for a legacy driver.
+ * @dev: comedi_device struct
+ * @start: base address of the I/O reqion
+ * @len: length of the I/O region
+ */
+int comedi_request_region(struct comedi_device *dev,
+ unsigned long start, unsigned long len)
+{
+ if (!start) {
+ dev_warn(dev->class_dev,
+ "%s: a I/O base address must be specified\n",
+ dev->board_name);
+ return -EINVAL;
+ }
+
+ if (!request_region(start, len, dev->board_name)) {
+ dev_warn(dev->class_dev, "%s: I/O port conflict (%#lx,%lu)\n",
+ dev->board_name, start, len);
+ return -EIO;
+ }
+ dev->iobase = start;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(comedi_request_region);
+
int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
struct comedi_driver *driv;