Adding a new subtype
To add a new subtype, you need to edit a few files. I'm listing them here for future convenience, as well as the function or type in the file that must be edited.
gnhast.h subtype enum device union
commands.h SC_COMMANDS enum
devices.c store_data_dev() get_data_dev()
netparser.c argtable[] find_arg_bydev()
collcmd.c cmd_update()
confparser.c conf_parse_subtype() conf_print_subtype()
cmdhandler.c cmd_update() cmd_change()