I2C/I2C.h: comments

diff --git a/I2C/I2C.h b/I2C/I2C.h
index 70c49c5..f9198a3 100644 (file)
--- a/I2C/I2C.h
+++ b/I2C/I2C.h
@@ -1,6 +1,12 @@
 // I2C routines
 
-static void I2C_start()
+// use:
+// void I2C_delay(void); // half-bit delay
+// void I2C_set(bool new_SDA_level, bool new_SCL_level);
+// uint8_t I2C_sda(void); // return SDA level
+// uint8_t I2C_scl(void); // return SCL level
+
+static void I2C_start(void)
 {
    I2C_set(1, 1); 
    I2C_delay();
@@ -10,7 +16,7 @@ static void I2C_start()
    I2C_delay();
 }
 
-static void I2C_stop()
+static void I2C_stop(void)
 {
    I2C_set(0, 0); 
    I2C_delay();