clean up project, switch to c2usb as zephyr module

.github/workflows/build.yml

@@ -11,13 +11,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, macos-13, macos-14, windows-2022]
+        os: [ubuntu-22.04]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          path: example-application
+          path: usb-keyboard
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -27,23 +27,18 @@ jobs:
       - name: Setup Zephyr project
         uses: zephyrproject-rtos/action-zephyr-setup@v1
         with:
-          app-path: example-application
+          app-path: usb-keyboard
           toolchains: arm-zephyr-eabi
 
       - name: Build firmware
-        working-directory: example-application
+        working-directory: usb-keyboard
         shell: bash
         run: |
-          if [ "${{ runner.os }}" = "Windows" ]; then
-            EXTRA_TWISTER_FLAGS="--short-build-path -O/tmp/twister-out"
-          fi
-          west twister -T app -v --inline-logs --integration $EXTRA_TWISTER_FLAGS
+          west build -b nrf52840dk/nrf52840 usb-keyboard
 
-      - name: Twister Tests
-        working-directory: example-application
-        shell: bash
-        run: |
-          if [ "${{ runner.os }}" = "Windows" ]; then
-            EXTRA_TWISTER_FLAGS="--short-build-path -O/tmp/twister-out"
-          fi
-          west twister -T tests -v --inline-logs --integration $EXTRA_TWISTER_FLAGS
+      - name: Archive firmware
+        uses: actions/upload-artifact@v4
+        with:
+          name: fw-nrf52840dk
+          path: |
+            build/zephyr/zephyr.hex

.gitignore

@@ -9,6 +9,7 @@
 # build
 /build*
 /twister-out*
+*/build
 
 __pycache__/
 

CMakeLists.txt

@@ -1,3 +1,2 @@
+# until https://github.com/zephyrproject-rtos/zephyr/pull/69490 is merged
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fpermissive")
-
-add_subdirectory(lib)

README.md

@@ -5,12 +5,12 @@ This repository contains a c2usb Zephyr example application.
 ## Initialization
 
 The first step is to initialize the workspace folder (``my-workspace``) where
-the ``example-application`` and all Zephyr modules will be cloned. Run the following
+the ``usb-keyboard`` and all Zephyr modules will be cloned. Run the following
 command:
 
 ```shell
-# initialize my-workspace for the example-application (main branch)
-west init -m https://github.com/IntergatedCircuits/c2usb-zephyr-examples.git my-workspace
+# initialize my-workspace for the usb-keyboard (main branch)
+west init -m https://github.com/IntergatedCircuits/c2usb-zephyr-examples my-workspace
 # update Zephyr modules
 cd my-workspace
 west update