add better typing to I2C code, add I2C test routine in response.c

1 files changed, 4 insertions, 2 deletions

diff --git a/i2c.h b/i2c.h
index 5382c4e..6c0e5b9 100644
--- a/i2c.h
+++ b/i2c.h
@@ -1,2 +1,4 @@
-int I2C_Write(int address, int value);
-int I2C_Read(int address);
+#include <glib.h>
+
+int I2C_Write(gulong address, guchar value);
+guchar I2C_Read(gulong address);