Fix broken usb_init_serialnumber() linking after C++ compiler switch.

forderud · Sep 23, 2024 · c08fcb3 · c08fcb3
1 parent 6e7a16a
commit c08fcb3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/teensy4/usb_desc.cpp b/teensy4/usb_desc.cpp
@@ -2751,7 +2751,7 @@ PROGMEM const struct usb_string_descriptor_struct usb_string_mtp = {
 };
 #endif
 
-void usb_init_serialnumber(void)
+extern "C" void usb_init_serialnumber(void)
 {
 	char buf[11];
 	uint32_t i, num;