From 8a3e2ad91e4ae48476408c889e649db0426818a5 Mon Sep 17 00:00:00 2001
From: Gadi Rotenberg <gadi@vhop.io>
Date: Wed, 16 Jun 2021 12:33:38 +0300
Subject: [PATCH] Fixed buffer allocation

---
 apps/nametags/nameservice.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/apps/nametags/nameservice.py b/apps/nametags/nameservice.py
index eb35085..4a46aa4 100644
--- a/apps/nametags/nameservice.py
+++ b/apps/nametags/nameservice.py
@@ -19,7 +19,6 @@
 
 class NameService(Service):
     uuid = StandardUUID(0xfeef)
-    _disp_rx = StreamIn(uuid=StandardUUID(0xfeee), timeout=1.0, buffer_size=8192)
 
     def __init__(self):
         super().__init__()
@@ -30,8 +29,12 @@ def __init__(self):
         self._offset = 0
         self._bufsize = 0
         self._ledstate = False
+        self._disp_rx = None
      
     def update(self):
+        if self._disp_rx is None:
+            self._disp_rx = StreamIn(uuid=StandardUUID(0xfeee), timeout=1.0, buffer_size=8192)
+
         while self._disp_rx.in_waiting > 0:
             if self._bufsize == 0:
                 value = int.from_bytes(self._disp_rx.read(1), 'little')