diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index eb640d0ab32d11f9a7a41b8e1005d8c6299574c2..5896f0588d4118393f60fcb3b609b4f2c9c634fe 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -29,7 +29,7 @@
 #define	PORT_RWC_BITS	(PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \
 			 PORT_RC | PORT_PLC | PORT_PE)
 
-/* usb 1.1 root hub device descriptor */
+/* USB 3.0 BOS descriptor and a capability descriptor, combined */
 static u8 usb_bos_descriptor [] = {
 	USB_DT_BOS_SIZE,		/*  __u8 bLength, 5 bytes */
 	USB_DT_BOS,			/*  __u8 bDescriptorType */