diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..eba1110
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+# Auto detect text files and perform LF normalization
+* text=auto
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..737bcf8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+# VSCode directories
+.vscode
+
diff --git a/src/sfeTkArdI2C.cpp b/src/sfeTkArdI2C.cpp
index 34127c1..880afb4 100644
--- a/src/sfeTkArdI2C.cpp
+++ b/src/sfeTkArdI2C.cpp
@@ -220,6 +220,10 @@ sfeTkError_t sfeTkArdI2C::readRegisterRegion(uint8_t devReg, uint8_t *data, size
     if (!_i2cPort)
         return kSTkErrBusNotInit;
 
+    // Buffer valid?
+    if (!data)
+        return kSTkErrBusNullBuffer;
+  
     readBytes = 0;
 
     uint16_t nOrig = numBytes; // original number of bytes.
@@ -261,7 +265,7 @@ sfeTkError_t sfeTkArdI2C::readRegisterRegion(uint8_t devReg, uint8_t *data, size
 
     } // end while
 
-    readBytes = nOrig - numBytes;
+    readBytes = nOrig - numBytes; // Bytes read.
 
-    return kSTkErrOk;
+    return (readBytes == nOrig) ? kSTkErrOk : kSTkErrBusUnderRead; // Success
 }
diff --git a/src/sfeTkArdI2C.h b/src/sfeTkArdI2C.h
index 85a74da..69e488d 100644
--- a/src/sfeTkArdI2C.h
+++ b/src/sfeTkArdI2C.h
@@ -168,11 +168,12 @@ class sfeTkArdI2C : public sfeTkII2C
         @note This method is virtual to allow it to be overridden to support a device that requires a unique impl
 
         @param devReg The device's register's address.
-        @param data Data to write.
-        @param numBytes - length of data
+        @param data Data being read.
+        @param numBytes Number of bytes to read.
         @param[out] readBytes - Number of bytes read
 
-        @retval kStkErrOk on success
+
+        @retval kSTkErrOk on success
     */
     sfeTkError_t readRegisterRegion(uint8_t devReg, uint8_t *data, size_t numBytes, size_t &readBytes);