diff --git a/src/lib.rs b/src/lib.rs
index 94798c7..0eb832b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,6 +12,12 @@ struct MB85RC<T: I2c<SevenBitAddress>> {
     i2c: T,
 }
 
+enum i2c_frequency {
+    standard_mode = 100_000,
+    fast_mode = 400_000,
+    fast_mode_plus = 1_000_000,
+}
+
 impl<T: I2c> MB85RC<T> {
     pub fn new(i2c: T) -> Self {
         MB85RC { i2c }
@@ -27,3 +33,17 @@ impl<T: I2c> Read for MB85RC<T> {
         todo!()
     }
 }
+fn get_device_id() -> [u8; 3] { 
+ let mut id: [u8; 3] =  [1, 2, 3];
+
+ id
+}
+
+
+fn byte_write(write_address: u8, data: u8) -> u8 {
+
+    let mut read_byte: u8 = 0x00;
+
+    read_byte
+
+}