diff --git a/arch/arm/src/lpc17xx/lpc17_usbhost.c b/arch/arm/src/lpc17xx/lpc17_usbhost.c
index 230037fddca741ebb7083d38cef7918ffda45ea9..158369b74b2a8f0ac3805badd8c96fbb70f9ab0d 100755
--- a/arch/arm/src/lpc17xx/lpc17_usbhost.c
+++ b/arch/arm/src/lpc17xx/lpc17_usbhost.c
@@ -69,7 +69,10 @@
  * Definitions
  *******************************************************************************/
 
-/* Configuration ***************************************************************/
+/* Frame Interval */
+
+#define  FI                     (12000-1) /* 12000 bits per frame (-1) */
+#define  DEFAULT_FMINTERVAL     ((((6 * (FI - 210)) / 7) << 16) | FI)
 
 /* CLKCTRL enable bits */
 
@@ -443,6 +446,10 @@ void up_usbhostinitialize(void)
   regval |= OHCI_CTRL_HCFS_OPER;
   lpc17_putreg(regval, LPC17_USBHOST_CTRL);
 
+  /* Set global power */
+
+  lpc17_putreg(OHCI_RHSTATUS_LPS, LPC17_USBHOST_RHSTATUS);
+
   /* Set HCCA base address */
 
   lpc17_putreg((uint32_t)Hcca, LPC17_USBHOST_HCCA);
diff --git a/include/nuttx/usb/ohci.h b/include/nuttx/usb/ohci.h
index cb1abb67a22e4bb50a34151c0163895127d61e4f..dd714c7c1c2d8e9e3a20c22c9deb2ff2ebff2ab0 100755
--- a/include/nuttx/usb/ohci.h
+++ b/include/nuttx/usb/ohci.h
@@ -226,7 +226,6 @@
 
 /* HcRhStatus: Root hub status (7.4.3) */
 
-#define OHCI_RHSTATUS_
 #define OHCI_RHSTATUS_LPS          (1 << 0)   /* Bit 0:  Local power status */
 #define OHCI_RHSTATUS_OCI          (1 << 1)   /* Bit 1:  Over current indicator */
                                               /* Bits 2-14: Reserved */