Hello everyone,
I'm developing a demo to create my own driver using DeviceTree. And I defined the device in the driver source files.
I called the driver API in the `main.c`. But when I added the driver files to my project, there is an error when linking.
The linker says: `undefined reference to `__device_dts_ord_14'`.
It means that the linker can't find the device structure defined by the driver source.
But when I change my CMakeLists.txt, from `zephyr_library_sources()` to `target_sources(app )`,it was successfully built.
See:
I want to know the difference between the 2 ways to add source files.
I learned the 1st way from the driver code in `zephyr/driver/`. So I think it's a right way to add driver code to a project.
I have no ideas about why my own driver code can only be added as application.