Index: uspace/lib/drv/include/usbhc_iface.h
===================================================================
--- uspace/lib/drv/include/usbhc_iface.h	(revision 65c059faef414c2c2e8542095e9f65eca6e83f08)
+++ uspace/lib/drv/include/usbhc_iface.h	(revision af16ebece2cb3bc7592cffdd6e1a6da6698dc8db)
@@ -116,5 +116,8 @@
 	usb_direction_t direction;
 
-	/** Maximum size of one transfer */
+	/**
+	 * Maximum size of one transfer. Non-periodic endpoints may handle
+	 * bigger transfers, but those can be split into multiple USB transfers.
+	 */
 	size_t max_transfer_size;