usb: Fix error in ACM interface descriptor.

orbcode · Jan 13, 2024 · 5e55aef · 5e55aef
1 parent 2a8a2b7
commit 5e55aef
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/orbtrace/soc.py b/orbtrace/soc.py
@@ -583,7 +583,7 @@ def add_usb_uart(self, uart):
 
         # IAD descriptor needed on windows
         with self.usb_conf_desc.InterfaceAssociationDescriptor() as i:
-            i.bFirstInterface = 0
+            i.bFirstInterface = comm_if
             i.bInterfaceCount = 2
             i.bFunctionClass = 2 # CDC
             i.bFunctionSubclass = 2