Index: uspace/lib/usb/include/usb/classes/hub.h
===================================================================
--- uspace/lib/usb/include/usb/classes/hub.h	(revision 02fc5c403d52648f5ee6dcf5158ad19197c73795)
+++ uspace/lib/usb/include/usb/classes/hub.h	(revision b25199bc69eed1b4bd7db431c481b362c5b8fef7)
@@ -84,7 +84,8 @@
 
 /**
- *	@brief usb hub descriptor
- *
- *	For more information see Universal Serial Bus Specification Revision 1.1 chapter 11.16.2
+ * @brief usb hub descriptor
+ *
+ * For more information see Universal Serial Bus Specification Revision 1.1
+ * chapter 11.16.2
  */
 typedef struct usb_hub_descriptor_type {
Index: uspace/lib/usb/src/usb.c
===================================================================
--- uspace/lib/usb/src/usb.c	(revision 02fc5c403d52648f5ee6dcf5158ad19197c73795)
+++ uspace/lib/usb/src/usb.c	(revision b25199bc69eed1b4bd7db431c481b362c5b8fef7)
@@ -39,27 +39,27 @@
 
 static const char *str_speed[] = {
-	"low",
-	"full",
-	"high"
+	[USB_SPEED_LOW] = "low",
+	[USB_SPEED_FULL] = "full",
+	[USB_SPEED_HIGH] = "high",
 };
 
 static const char *str_transfer_type[] = {
-	"control",
-	"isochronous",
-	"bulk",
-	"interrupt"
+	[USB_TRANSFER_CONTROL] = "control",
+	[USB_TRANSFER_ISOCHRONOUS] = "isochronous",
+	[USB_TRANSFER_BULK] = "bulk",
+	[USB_TRANSFER_INTERRUPT] = "interrupt",
 };
 
 static const char *str_transfer_type_short[] = {
-	"ctrl",
-	"iso",
-	"bulk",
-	"intr"
+	[USB_TRANSFER_CONTROL] = "ctrl",
+	[USB_TRANSFER_ISOCHRONOUS] = "iso",
+	[USB_TRANSFER_BULK] = "bulk",
+	[USB_TRANSFER_INTERRUPT] = "intr",
 };
 
 static const char *str_direction[] = {
-	"in",
-	"out",
-	"both"
+	[USB_DIRECTION_IN] = "in",
+	[USB_DIRECTION_OUT] = "out",
+	[USB_DIRECTION_BOTH] = "both",
 };