Proper use of reconfigure() function in device-service (C language)

[GabrielMonS]

Hello! I am developing an EdgeX device service in C language. So far I have managed to use most of the functions implemented in the device-example-c (get_handler, set_handler, create_addr, stop, ...) but I am having trouble understanding how to properly use the reconfigure() function.
Could you point out when this method will be called? For example, which REST command (if any) will trigger a call to it? The commentary above the function says that it will be called when "the driver configuration is updated", but I do not fully understand the situation where this will happen. Which 'driver configuration' does it refer to? And can it be be updated externally (e.g. from a POST/PATCH command) or only from within the service?
Thanks in advance for your time and efforts!
Kind regards from a fellow developer.