Index: uspace/drv/bus/usb/xhci/hw_struct/trb.h
===================================================================
--- uspace/drv/bus/usb/xhci/hw_struct/trb.h	(revision 60af4cdb1acd8703dcd25885a99082aecd43036f)
+++ uspace/drv/bus/usb/xhci/hw_struct/trb.h	(revision 2b6194515b4a1d9d4ac636869626fc887b61cc4f)
@@ -100,4 +100,5 @@
 #define TRB_CYCLE(trb)          XHCI_DWORD_EXTRACT((trb).control, 0, 0)
 #define TRB_LINK_TC(trb)        XHCI_DWORD_EXTRACT((trb).control, 1, 1)
+#define TRB_IOC(trb)            XHCI_DWORD_EXTRACT((trb).control, 5, 5)
 
 #define TRB_TRANSFER_LENGTH(trb)	XHCI_DWORD_EXTRACT((trb).status, 23, 0)