diff --git a/.github/workflows/githubci.yml b/.github/workflows/githubci.yml
index 9145985..849c5af 100644
--- a/.github/workflows/githubci.yml
+++ b/.github/workflows/githubci.yml
@@ -15,18 +15,47 @@ jobs:
       with:
          repository: adafruit/ci-arduino
          path: ci
-
+    
     - name: pre-install
       run: bash ci/actions_install.sh
 
     - name: test platforms
       run: python3 ci/build_platform.py main_platforms
+  clang-format:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/setup-python@v1
+      with:
+        python-version: '3.x'
+    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2
+      with:
+         repository: adafruit/ci-arduino
+         path: ci
+    
+    - name: pre-install
+      run: bash ci/actions_install.sh
 
     - name: clang
       run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r . 
+  doxygen:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2
+      with:
+         repository: adafruit/ci-arduino
+         path: ci
+    
+    # The Adafruit doxygen setup is configured to only look for files in the root directory
+    - name: move src contents to root
+      run: mv -v src/* .
 
     - name: doxygen
       env:
         GH_REPO_TOKEN: ${{ secrets.GH_REPO_TOKEN }}
         PRETTYNAME : "Adafruit MCP23017 Library"
       run: bash ci/doxy_gen_and_deploy.sh
+
diff --git a/src/Adafruit_MCP23X08.cpp b/src/Adafruit_MCP23X08.cpp
index a4d2ebf..eed7f57 100644
--- a/src/Adafruit_MCP23X08.cpp
+++ b/src/Adafruit_MCP23X08.cpp
@@ -1,23 +1,5 @@
 /*!
  * @file Adafruit_MCP23X08.cpp
- *
- * @mainpage Adafruit MCP23X08/17 Library
- *
- * @section intro_sec Introduction
- *
- * This is a library for the MCP23008/17 I2C and MCP23S08/17 SPI port
- * expanders.
- * Adafruit invests time and resources providing this open source code,
- * please support Adafruit and open-source hardware by purchasing
- * products from Adafruit!
- *
- * @section author Author
- *
- * Written by Carter Nelson for Adafruit Industries.
- *
- * @section license License
- *
- * BSD license, all text above must be included in any redistribution
  */
 
 #include "Adafruit_MCP23X08.h"
diff --git a/src/Adafruit_MCP23X17.cpp b/src/Adafruit_MCP23X17.cpp
index ed19b1f..cbf8c17 100644
--- a/src/Adafruit_MCP23X17.cpp
+++ b/src/Adafruit_MCP23X17.cpp
@@ -1,23 +1,5 @@
 /*!
  * @file Adafruit_MCP23X17.cpp
- *
- * @mainpage Adafruit MCP23X08/17 Library
- *
- * @section intro_sec Introduction
- *
- * This is a library for the MCP23008/17 I2C and MCP23S08/17 SPI port
- * expanders.
- * Adafruit invests time and resources providing this open source code,
- * please support Adafruit and open-source hardware by purchasing
- * products from Adafruit!
- *
- * @section author Author
- *
- * Written by Carter Nelson for Adafruit Industries.
- *
- * @section license License
- *
- * BSD license, all text above must be included in any redistribution
  */
 
 #include "Adafruit_MCP23X17.h"
diff --git a/src/Adafruit_MCP23XXX.cpp b/src/Adafruit_MCP23XXX.cpp
index 39724cb..3c1d7e3 100644
--- a/src/Adafruit_MCP23XXX.cpp
+++ b/src/Adafruit_MCP23XXX.cpp
@@ -144,7 +144,7 @@ void Adafruit_MCP23XXX::writeGPIO(uint8_t value, uint8_t port) {
 /*!
   @brief Configure the interrupt system.
   @param mirroring true to OR both INTA and INTB pins.
-  @param open true for open drain output, false for active drive output.
+  @param openDrain true for open drain output, false for active drive output.
   @param polarity HIGH or LOW
 */
 /**************************************************************************/
@@ -247,6 +247,7 @@ uint8_t Adafruit_MCP23XXX::getLastInterruptPin() {
   @brief helper to get register address
   @param baseAddress base register address
   @param port 0 for A, 1 for B (MCP23X17 only)
+  @returns calculated register address
 */
 /**************************************************************************/
 uint16_t Adafruit_MCP23XXX::getRegister(uint8_t baseAddress, uint8_t port) {