1 files changed, 9 insertions, 4 deletions
diff --git a/supervisor/shared/usb/usb.c b/supervisor/shared/usb/usb.c
index af34f2598..9cbb295c8 100644
--- a/supervisor/shared/usb/usb.c
+++ b/supervisor/shared/usb/usb.c
@@ -93,16 +93,21 @@ void usb_background(void) {
     }
 }
 
-/*static*/ background_callback_t usb_callback;
-/*static*/ void usb_background_do(void* unused) {
+static background_callback_t usb_callback;
+static void usb_background_do(void* unused) {
     usb_background();
 }
 
-void usb_irq_handler(void) {
-    tud_int_handler(0); \
+void usb_background_schedule(void)
+{
     background_callback_add(&usb_callback, usb_background_do, NULL);
 }
 
+void usb_irq_handler(void) {
+    tud_int_handler(0);
+    usb_background_schedule();
+}
+
 //--------------------------------------------------------------------+
 // tinyusb callbacks
 //--------------------------------------------------------------------+