fix various warnings

1 files changed, 3 insertions, 2 deletions

diff --git a/i2c.c b/i2c.c
index fc9d48a..4c1499d 100644
--- a/i2c.c
+++ b/i2c.c
@@ -10,7 +10,7 @@
 #define I2C_BUS "/dev/i2c-3"
 
 
-int I2C_Write(gulong address, guchar value) {
+void I2C_Write(gulong address, guchar value) {
 
 	struct i2c_smbus_ioctl_data argswrite;
 
@@ -21,7 +21,8 @@ int I2C_Write(gulong address, guchar value) {
 
 	int device = open(I2C_BUS, O_RDWR);
 
-	if (device == -1) return device;
+	// FIXME?
+	if (device == -1) return;
 
 	ioctl(device, I2C_SLAVE, address);
 	ioctl(device, I2C_SMBUS, &argswrite);