+/* Sysfs Attributes */
+
+static ssize_t show_uart_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+
+ return sprintf(buf, "%d\n", edge_port->bUartMode);
+}
+
+static ssize_t store_uart_mode(struct device *dev,
+ struct device_attribute *attr, const char *valbuf, size_t count)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+ unsigned int v = simple_strtoul(valbuf, NULL, 0);
+
+ dbg("%s: setting uart_mode = %d", __FUNCTION__, v);
+
+ if (v < 256)
+ edge_port->bUartMode = v;
+ else
+ dev_err(dev, "%s - uart_mode %d is invalid\n", __FUNCTION__, v);
+
+ return count;
+}
+
+static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, store_uart_mode);
+
+static int edge_create_sysfs_attrs(struct usb_serial_port *port)
+{
+ return device_create_file(&port->dev, &dev_attr_uart_mode);
+}
+
+static int edge_remove_sysfs_attrs(struct usb_serial_port *port)
+{
+ device_remove_file(&port->dev, &dev_attr_uart_mode);
+ return 0;
+}
+
+