warn if I2C bus not available

1 files changed, 2 insertions, 1 deletions

diff --git a/i2c.c b/i2c.c
index 84a9338..4f1e7cf 100644
--- a/i2c.c
+++ b/i2c.c
@@ -1,3 +1,4 @@
+#include "globals.h"
 #include <stdio.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -22,8 +23,8 @@ void I2C_Write(gulong address, guchar value)
 
 	int device = open(I2C_BUS, O_RDWR);
 
-	// FIXME?
 	if (device == -1) {
+		g_print_debug("ERROR: could not open I2C bus %s\n", I2C_BUS);
 		return;
 	}