Cannot get callback between components (IPC) to work properly

[BCUbing]

Thanks for the response jyijyi!
I got the callback working based on your application.

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The reference code (as seen here) is not correct, the following line:

tempSensor_ChangeHandlerRef_t clientHandlerFunc = secondLayerHandlerFunc;

has to be:

tempSensor_ChangeHandlerFunc_t clientHandlerFunc = secondLayerHandlerFunc;

Thanks again