src/main: report device_id as usb serial number

src/apps/common/storage.py

@@ -16,10 +16,10 @@ _NEEDS_BACKUP   = const(0x07)  # 0x01 or empty
 
 
 def get_device_id() -> str:
-    dev_id = config.get(_APP, _DEVICE_ID).decode()
+    dev_id = config.get(_APP, _DEVICE_ID, True).decode()  # public
     if not dev_id:
         dev_id = new_device_id()
-        config.set(_APP, _DEVICE_ID, dev_id.encode())
+        config.set(_APP, _DEVICE_ID, dev_id.encode(), True)  # public
     return dev_id
 
 

src/main.py

@@ -6,6 +6,8 @@ from trezor import loop
 from trezor import wire
 from trezor import workflow
 
+from apps.common.storage import get_device_id
+
 log.level = log.DEBUG
 
 # initialize the USB stack
@@ -60,7 +62,7 @@ usb = io.USB(
     release_num=0x0200,
     manufacturer="SatoshiLabs",
     product="TREZOR",
-    serial_number="44DD6B2C788D760538A78ECA",
+    serial_number=get_device_id(),
     interface="TREZOR Interface",
 )