1 files changed, 11 insertions, 13 deletions

diff --git a/app/dfu.c b/app/dfu.c
index 08e3bf9..8e72e3f 100644
--- a/app/dfu.c
+++ b/app/dfu.c
@@ -36,7 +36,7 @@ const struct usb_iface_assoc_descriptor dfu_iface_assoc = {
 };
 
 
-static int
+static void
 dfu_detach_complete (usbd_device *usbd_dev, struct usb_setup_data *req)
 {
   (void) req;
@@ -48,23 +48,21 @@ dfu_detach_complete (usbd_device *usbd_dev, struct usb_setup_data *req)
   //SCB_AIRCR= SCB_AIRCR_SYSRESETREQ;
 
   scb_reset_core();
-  return 1;
 }
 
-int
+enum usbd_request_return_codes
 dfu_control_request (usbd_device *usbd_dev, struct usb_setup_data *req,
                      uint8_t **buf, uint16_t *len,
-                     usbd_control_complete_callback *complete)
-{
+                     usbd_control_complete_callback *complete) {
   (void) buf;
   (void) len;
   (void) usbd_dev;
 
-  if ((req->bmRequestType & 0x7F) != 0x21) {
-    return 0;  /* Only accept class request. */
-  }
+  if ((req->bmRequestType & 0x7F) != 0x21)
+    return USBD_REQ_NEXT_CALLBACK;
 
-  switch (req->bRequest) {
+  switch (req->bRequest)
+  {
   case DFU_GETSTATUS: {
     (*buf) [0] = DFU_STATUS_OK;
     (*buf) [1] = 0;
@@ -73,20 +71,20 @@ dfu_control_request (usbd_device *usbd_dev, struct usb_setup_data *req,
     (*buf) [4] = STATE_APP_IDLE;
     (*buf) [5] = 0;         /* iString not used here */
     *len = 6;
-    return 1;
+    return USBD_REQ_HANDLED;
   }
 
   case DFU_GETSTATE:
     /* Return state with no state transision. */
     *buf[0] = STATE_APP_IDLE;
     *len = 1;
-    return 1;
+    return USBD_REQ_HANDLED;
 
   case DFU_DETACH:
     *complete = dfu_detach_complete;
-    return 1;
+    return USBD_REQ_HANDLED;
   }
 
-  return 0;
+  return USBD_REQ_NEXT_CALLBACK;
 }