catch remote i/o error (refs #29)

rm-hull · Mar 7, 2017 · fb63197 · fb63197
1 parent 78675e0
commit fb63197
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/luma/core/serial.py b/luma/core/serial.py
@@ -63,6 +63,10 @@ def __init__(self, bus=None, port=1, address=0x3C):
                 # PermissionError
                 raise luma.core.error.DevicePermissionError(
                     'I2C device permission denied: {}'.format(e.filename))
+            elif e.errno == errno.EREMOTEIO:
+                # Remote I/O error
+                raise luma.core.error.DeviceNotFoundError(
+                    'I2C device not found on address: {}'.format(address))
             else:  # pragma: no cover
                 raise