From b38d01148ee48a8dda628859627237f91a0cfe41 Mon Sep 17 00:00:00 2001
From: James Bowman <jamesb@excamera.com>
Date: Sat, 25 Jan 2020 18:51:29 -0800
Subject: [PATCH] Proper busy bus expection

---
 python/i2cdriver.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/i2cdriver.py b/python/i2cdriver.py
index 9306fb7..fec3ebf 100644
--- a/python/i2cdriver.py
+++ b/python/i2cdriver.py
@@ -110,7 +110,7 @@ class I2CDriver:
             return
         if reset or (self.scl, self.sda) != (1, 1):
             if self.reset() != 3:
-                assert 0, "I2C bus is busy"
+                raise I2CTimeout("Bus failed to reset - check connected devices")
             self.getstatus()
         self.setspeed(100)