1 files changed, 20 insertions, 1 deletions
diff --git a/testhal/STM32/STM32F3xx/USB_CDC_IAD/usbcfg.c b/testhal/STM32/STM32F3xx/USB_CDC_IAD/usbcfg.c
index 70e55dbba..e7029ade4 100644
--- a/testhal/STM32/STM32F3xx/USB_CDC_IAD/usbcfg.c
+++ b/testhal/STM32/STM32F3xx/USB_CDC_IAD/usbcfg.c
@@ -16,6 +16,12 @@
 
 #include "hal.h"
 
+/*
+ * Virtual serial ports over USB.
+ */
+SerialUSBDriver SDU1;
+SerialUSBDriver SDU2;
+
 #define USB_DEVICE_VID                  0xF055  /* You MUST change this.*/
 #define USB_DEVICE_PID                  0xE063  /* You MUST change this.*/
 
@@ -425,13 +431,26 @@ static bool requests_hook(USBDriver *usbp) {
 }
 
 /*
+ * Handles the USB driver global events.
+ */
+static void sof_handler(USBDriver *usbp) {
+
+  (void)usbp;
+
+  osalSysLockFromISR();
+  sduSOFHookI(&SDU1);
+  sduSOFHookI(&SDU2);
+  osalSysUnlockFromISR();
+}
+
+/*
  * USB driver configuration.
  */
 const USBConfig usbcfg = {
   usb_event,
   get_descriptor,
   requests_hook,
-  NULL
+  sof_handler
 };
 
 /*