Index: uspace/lib/usb/include/usb/ddfiface.h
===================================================================
--- uspace/lib/usb/include/usb/ddfiface.h	(revision 6df220289417a3a5f0a319426564833d6f527370)
+++ uspace/lib/usb/include/usb/ddfiface.h	(revision e1e419242301f0e2f9fde5702b684ea76aedd876)
@@ -33,4 +33,5 @@
  * Implementations of DDF interfaces functions.
  */
+
 #ifndef LIBUSB_DDFIFACE_H_
 #define LIBUSB_DDFIFACE_H_
@@ -39,14 +40,15 @@
 #include <usb_iface.h>
 
-int usb_iface_get_hc_handle_device_impl(ddf_fun_t *, devman_handle_t *);
-int usb_iface_get_my_address_forward_impl(ddf_fun_t *, usb_address_t *);
+extern int usb_iface_get_hc_handle_device_impl(ddf_fun_t *, devman_handle_t *);
+extern int usb_iface_get_my_address_forward_impl(ddf_fun_t *, usb_address_t *);
 extern usb_iface_t usb_iface_hub_impl;
 
-int usb_iface_get_my_address_from_device_data(ddf_fun_t *, usb_address_t *);
+extern int usb_iface_get_my_address_from_device_data(ddf_fun_t *, usb_address_t *);
 extern usb_iface_t usb_iface_hub_child_impl;
 
-int usb_iface_get_hc_handle_hc_impl(ddf_fun_t *, devman_handle_t *);
+extern int usb_iface_get_hc_handle_hc_impl(ddf_fun_t *, devman_handle_t *);
 
 #endif
+
 /**
  * @}
Index: uspace/lib/usb/include/usb/debug.h
===================================================================
--- uspace/lib/usb/include/usb/debug.h	(revision 6df220289417a3a5f0a319426564833d6f527370)
+++ uspace/lib/usb/include/usb/debug.h	(revision e1e419242301f0e2f9fde5702b684ea76aedd876)
@@ -82,7 +82,7 @@
 /** Default log level. */
 #ifdef CONFIG_USB_VERBOSE
-#  define USB_LOG_LEVEL_DEFAULT USB_LOG_LEVEL_DEBUG
+	#define USB_LOG_LEVEL_DEFAULT USB_LOG_LEVEL_DEBUG
 #else
-#  define USB_LOG_LEVEL_DEFAULT USB_LOG_LEVEL_INFO
+	#define USB_LOG_LEVEL_DEFAULT USB_LOG_LEVEL_INFO
 #endif
 
Index: uspace/lib/usb/src/ddfiface.c
===================================================================
--- uspace/lib/usb/src/ddfiface.c	(revision 6df220289417a3a5f0a319426564833d6f527370)
+++ uspace/lib/usb/src/ddfiface.c	(revision e1e419242301f0e2f9fde5702b684ea76aedd876)
@@ -33,4 +33,5 @@
  * Implementations of DDF interfaces functions (actual implementation).
  */
+
 #include <devman.h>
 #include <async.h>
Index: uspace/lib/usb/src/hc.c
===================================================================
--- uspace/lib/usb/src/hc.c	(revision 6df220289417a3a5f0a319426564833d6f527370)
+++ uspace/lib/usb/src/hc.c	(revision e1e419242301f0e2f9fde5702b684ea76aedd876)
@@ -27,4 +27,5 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
 /** @addtogroup libusb
  * @{
@@ -33,4 +34,5 @@
  * General communication with host controller driver (implementation).
  */
+
 #include <usb/debug.h>
 
@@ -44,4 +46,5 @@
 {
 	assert(connection);
+	
 	fibril_mutex_lock(&connection->guard);
 	if (connection->ref_count == 0) {
@@ -55,12 +58,14 @@
 		}
 	}
+	
 	++connection->ref_count;
 	fibril_mutex_unlock(&connection->guard);
 	return EOK;
 }
-/*----------------------------------------------------------------------------*/
+
 static int usb_hc_connection_del_ref(usb_hc_connection_t *connection)
 {
 	assert(connection);
+	
 	fibril_mutex_lock(&connection->guard);
 	if (connection->ref_count == 0) {
@@ -70,4 +75,5 @@
 		return EOK;
 	}
+	
 	--connection->ref_count;
 	int ret = EOK;
@@ -125,5 +131,5 @@
 	return rc;
 }
-/*----------------------------------------------------------------------------*/
+
 void usb_hc_connection_deinitialize(usb_hc_connection_t *connection)
 {
@@ -140,5 +146,5 @@
 	fibril_mutex_unlock(&connection->guard);
 }
-/*----------------------------------------------------------------------------*/
+
 /** Open connection to host controller.
  *
@@ -150,5 +156,5 @@
 	return usb_hc_connection_add_ref(connection);
 }
-/*----------------------------------------------------------------------------*/
+
 /** Close connection to the host controller.
  *
@@ -160,5 +166,5 @@
 	return usb_hc_connection_del_ref(connection);
 }
-/*----------------------------------------------------------------------------*/
+
 /** Ask host controller for free address assignment.
  *
@@ -182,5 +188,5 @@
 	return ret == EOK ? address : ret;
 }
-/*----------------------------------------------------------------------------*/
+
 int usb_hc_bind_address(usb_hc_connection_t * connection,
     usb_address_t address, devman_handle_t handle)
@@ -194,5 +200,5 @@
 	return ret;
 }
-/*----------------------------------------------------------------------------*/
+
 /** Get handle of USB device with given address.
  *
@@ -213,5 +219,5 @@
 	return ret;
 }
-/*----------------------------------------------------------------------------*/
+
 int usb_hc_release_address(usb_hc_connection_t *connection,
     usb_address_t address)
@@ -225,5 +231,5 @@
 	return ret;
 }
-/*----------------------------------------------------------------------------*/
+
 int usb_hc_register_endpoint(usb_hc_connection_t *connection,
     usb_address_t address, usb_endpoint_t endpoint, usb_transfer_type_t type,
@@ -239,5 +245,5 @@
 	return ret;
 }
-/*----------------------------------------------------------------------------*/
+
 int usb_hc_unregister_endpoint(usb_hc_connection_t *connection,
     usb_address_t address, usb_endpoint_t endpoint, usb_direction_t direction)
@@ -252,5 +258,5 @@
 	return ret;
 }
-/*----------------------------------------------------------------------------*/
+
 int usb_hc_read(usb_hc_connection_t *connection, usb_address_t address,
     usb_endpoint_t endpoint, uint64_t setup, void *data, size_t size,
@@ -266,5 +272,5 @@
 	return ret;
 }
-/*----------------------------------------------------------------------------*/
+
 int usb_hc_write(usb_hc_connection_t *connection, usb_address_t address,
     usb_endpoint_t endpoint, uint64_t setup, const void *data, size_t size)