diff --git a/bsp/imx6sx/iMX6_Platform_SDK/sdk/common/usb_stack/Device/source/driver/mx6x/usb_ch9.h b/bsp/imx6sx/iMX6_Platform_SDK/sdk/common/usb_stack/Device/source/driver/mx6x/usb_ch9.h
index c7efae18234151cc2460e7fe6dea9ab879267f01..8feda063c0e4a3aa8226f1d7c4e1b3e3973f2ae6 100755
--- a/bsp/imx6sx/iMX6_Platform_SDK/sdk/common/usb_stack/Device/source/driver/mx6x/usb_ch9.h
+++ b/bsp/imx6sx/iMX6_Platform_SDK/sdk/common/usb_stack/Device/source/driver/mx6x/usb_ch9.h
@@ -169,5 +169,5 @@ typedef struct usb_string_descriptor 
 {
     
unsigned char bDescriptorType; /*STRING Descriptor Type, must be 0x3 */
     
unsigned char *pString;    /*pointer to the start address of the string, the string lenth is (bLength-2) */
 
} usb_string_descriptor_t;
-
+
 #endif  /*USB_CH9_H_*/