Index: uspace/drv/bus/usb/xhci/hw_struct/regs.h
===================================================================
--- uspace/drv/bus/usb/xhci/hw_struct/regs.h	(revision 2523293b752d16748545cd4afb421f6ef7e2cfa8)
+++ uspace/drv/bus/usb/xhci/hw_struct/regs.h	(revision 11d4c74790a59262e7cbf38a3e7529d4af5716c2)
@@ -196,7 +196,7 @@
 #define XHCI_CAP_IST          hcsparams2, 32, RANGE,  3,  0
 #define XHCI_CAP_ERST_MAX     hcsparams2, 32, RANGE,  7,  4
-#define XHCI_CAP_MAX_SPBUF_LO hcsparams2, 32, RANGE, 25,  4
+#define XHCI_CAP_MAX_SPBUF_HI hcsparams2, 32, RANGE, 25, 21
 #define XHCI_CAP_SPR          hcsparams2, 32,  FLAG, 26
-#define XHCI_CAP_MAX_SPBUF_HI hcsparams2, 32, RANGE, 31, 27
+#define XHCI_CAP_MAX_SPBUF_LO hcsparams2, 32, RANGE, 31, 27
 #define XHCI_CAP_U1EL         hcsparams3, 32, RANGE,  7,  0
 #define XHCI_CAP_U2EL         hcsparams3, 32, RANGE, 31, 16