#ifndef _USB_CDC_H_\r
#define _USB_CDC_H_\r
\r
-#include <common.h>\r
+#include "common.h"\r
\r
void usb_disable();\r
void usb_enable();\r
bool usb_check();\r
bool usb_poll();\r
+bool usb_poll_validate_length();\r
uint32_t usb_read(byte_t* data, size_t len);\r
uint32_t usb_write(const byte_t* data, const size_t len);\r
\r