Connman uses configuration files to provision existing services. Connman will
be looking for its configuration files at STORAGEDIR which by default points
-to /var/lib/connman/. Configuration file names should follow the *.config
-pattern.
+to /var/lib/connman/. Configuration file names must not include other
+characters than letters or numbers and must have a .config suffix.
Those configuration files are text files with a simple format and we typically
have one file per provisioned network.