main: small refactor

src/main.py

@@ -9,8 +9,10 @@ from trezor import workflow
 log.level = log.DEBUG
 
 # initialize the USB stack
+
+if True:
     usb_wire = io.HID(
-    iface_num=0x00,
+        iface_num=0,
         ep_in=0x81,
         ep_out=0x01,
         report_desc=bytes([
@@ -32,14 +34,14 @@ usb_wire = io.HID(
             0xc0,              # END_COLLECTION
         ]),
     )
-if __debug__:
-    usb_debug = io.HID(
-        iface_num=0x04,
-        ep_in=0x85,
-        ep_out=0x04,
+
+usb_u2f = io.HID(
+    iface_num=3,
+    ep_in=0x84,
+    ep_out=0x03,
     report_desc=bytes([
-            0x06, 0x01, 0xff,  # USAGE_PAGE (Vendor Defined)
-            0x09, 0x01,        # USAGE (1)
+        0x06, 0xd0, 0xf1,  # USAGE_PAGE (FIDO Alliance)
+        0x09, 0x01,        # USAGE (U2F HID Authenticator Device)
         0xa1, 0x01,        # COLLECTION (Application)
         0x09, 0x20,        # USAGE (Input Report Data)
         0x15, 0x00,        # LOGICAL_MINIMUM (0)
@@ -56,20 +58,16 @@ if __debug__:
         0xc0,              # END_COLLECTION
     ]),
 )
-usb_vcp = io.VCP(
-    iface_num=0x01,
-    data_iface_num=0x02,
-    ep_in=0x82,
-    ep_out=0x02,
-    ep_cmd=0x83,
-)
-usb_u2f = io.HID(
-    iface_num=0x03,
-    ep_in=0x84,
-    ep_out=0x03,
+
+if __debug__:
+    if True:
+        usb_debug = io.HID(
+            iface_num=4,
+            ep_in=0x85,
+            ep_out=0x04,
             report_desc=bytes([
-        0x06, 0xd0, 0xf1,  # USAGE_PAGE (FIDO Alliance)
-        0x09, 0x01,        # USAGE (U2F HID Authenticator Device)
+                0x06, 0x01, 0xff,  # USAGE_PAGE (Vendor Defined)
+                0x09, 0x01,        # USAGE (1)
                 0xa1, 0x01,        # COLLECTION (Application)
                 0x09, 0x20,        # USAGE (Input Report Data)
                 0x15, 0x00,        # LOGICAL_MINIMUM (0)
@@ -86,6 +84,14 @@ usb_u2f = io.HID(
                 0xc0,              # END_COLLECTION
             ]),
         )
+    usb_vcp = io.VCP(
+        iface_num=1,
+        data_iface_num=2,
+        ep_in=0x82,
+        ep_out=0x02,
+        ep_cmd=0x83,
+    )
+
 usb = io.USB(
     vendor_id=0x1209,
     product_id=0x53C1,
@@ -94,11 +100,12 @@ usb = io.USB(
     product="TREZOR",
     serial_number="000000000000000000000000",
 )
+
 usb.add(usb_wire)
+usb.add(usb_u2f)
 if __debug__:
     usb.add(usb_debug)
     usb.add(usb_vcp)
-usb.add(usb_u2f)
 
 # load applications
 if __debug__: