From 558051272225b5df9fa28ba6f454219f1d93bcdc Mon Sep 17 00:00:00 2001
From: Raghav Sharma <156632806+RaghavSharma7255@users.noreply.github.com>
Date: Mon, 10 Feb 2025 17:40:39 -0500
Subject: [PATCH] Fix bus reliability issue in update_fifo method

Wrapped the update_fifo method in a try-except block to handle potential I/O errors on the Raspberry Pi's I2C bus. This improves reliability by preventing crashes due to transient communication failures.
---
 qwiic_keypad.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/qwiic_keypad.py b/qwiic_keypad.py
index e8d0da3..339d402 100644
--- a/qwiic_keypad.py
+++ b/qwiic_keypad.py
@@ -217,4 +217,10 @@ def update_fifo(self):
         @return No return value
         """
         # set bit0, commanding keypad to update fifo
-        self._i2c.writeByte(self.address, KEYPAD_UPDATE_FIFO, 0x01)
+        # Wrap in try-catch to fix issues in the bus on Raspberry Pi  
+        # and to ensure its reliability
+        try:              
+            self._i2c.writeByte(self.address, KEYPAD_UPDATE_FIFO, 0x01)
+        except IOError:
+            pass
+