Fix printer handling

Author: MattyTheHacker

main.py

@@ -17,7 +17,10 @@
 logger = logging.getLogger('uvicorn.error')
 lock = threading.Lock()
 
-printer.init_printer(bytes.fromhex(config['printer']['maj']), bytes.fromhex(config['printer']['min']))
+printer.init_printer(
+    int(config['printer']['maj'], 16), 
+    int(config['printer']['min'], 16)
+)
 
 app = FastAPI()
 

printer.py

@@ -4,7 +4,7 @@
 
 p = Dummy()
 
-def init_printer(maj: bytes, min: bytes):
+def init_printer(maj: int, min: int):
     global p
     p = Usb(maj, min, 0, profile="TM-P80")