From 09a4248c50708c1e54d32b3a260112d29ea268c1 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sun, 14 Feb 2021 10:18:08 +0100
Subject: bme680-max44009-logger: improve resilience against bad wiring

---
 src/driver/max44009.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/driver/max44009.cc')

diff --git a/src/driver/max44009.cc b/src/driver/max44009.cc
index d09188c..e124787 100644
--- a/src/driver/max44009.cc
+++ b/src/driver/max44009.cc
@@ -19,7 +19,9 @@ float MAX44009::getLux()
 	txbuf[0] = 0x03;
 	txbuf[1] = 0x04;
 
-	i2c.xmit(address, 2, txbuf, 2, rxbuf);
+	if (i2c.xmit(address, 2, txbuf, 2, rxbuf) != 0) {
+		return -1;
+	}
 
 	luxHigh = rxbuf[0];
 	luxLow = rxbuf[1];
-- 
cgit v1.2.3