config NUT_SERVER depends on PACKAGE_nut bool "Include server components (upsd)" help upsd is responsible for serving the data from the drivers to the clients. It connects to each driver and maintains a local cache of the current state. Queries from the clients are served from this cache, so delays are minimal. This program is essential, and must be running at all times to actually make any use out of the drivers and clients. default y config NUT_CLIENTS_UPSC depends on PACKAGE_nut bool "Include command line client (upsc)" help upsc is provided as a quick way to poll the status of a UPS server. It can be used inside shell scripts and other programs that need UPS data but don't want to include the full interface. default y config NUT_CLIENTS_UPSLOG depends on PACKAGE_nut bool "Include logging client (upslog)" help upslog is a daemon that will poll a UPS at periodic intervals, fetch the variables that interest you, format them, and write them to a file. default n config NUT_CLIENTS_UPSCMD depends on PACKAGE_nut bool "Include UPS controller (upscmd)" help upscmd allows you to invoke "instant commands" in your UPS hardware. Not all hardware supports this, so check the list with -l to see if anything will work on your equipment. On hardware that supports it, you can use this program to start and stop battery tests, invoke a front panel test (beep!), turn the load on or off, and more. default n config NUT_CLIENTS_UPSRW depends on PACKAGE_nut bool "Include UPS variable editor (upsrw)" help upsrw allows you to view and change the read/write variables inside your UPS. It sends commands via the upsd to your driver, which configures the hardware for you. The list of variables that allow you to change their values is based on the capabilities of your UPS equipment. Not all models support this feature. Typically, cheaper hardware does not support any of them. default n config NUT_CLIENTS_UPSMON depends on PACKAGE_nut bool "Include monitor and shutdown controller (upsmon)" help upsmon is the client process that is responsible for the most important part of UPS monitoring--shutting down the system when the power goes out. It can call out to other helper programs for notification purposes during power events. upsmon can monitor multiple systems using a single process. Every UPS that is defined in the upsmon.conf configuration file is assigned a power value and a type (slave or master). default y config NUT_CLIENTS_UPSSCHED depends on NUT_CLIENTS_UPSMON bool "Include helper for triggering events from upsmon (upssched)" help upssched was created to allow users to execute programs at times relative to events being monitored by upsmon. The original purpose was to allow for a shutdown to occur after some fixed period on battery, but there are other uses that are possible. You can alternatively write your own script and save some space. default n config NUT_SSL depends on PACKAGE_nut bool "Build with support for OpenSSL" help SSL allows sessions between upsd and clients to be encrypted and can also be used to authenticate servers. This means that stealing port 3493 from upsd will no longer net you interesting passwords. SSL is available via OpenSSL on OpenWRT (NSS doesn't seem to work). If you are happy with using passwords to authenticate clients, you can save some space and build NUT without SSL support. default n config NUT_DRIVER_USB depends on PACKAGE_nut bool "Build with support for USB drivers" help If you have a UPS connected via USB, select this. default y config NUT_DRIVER_SNMP depends on PACKAGE_nut bool "Build with support for SNMP drivers" help If you have a UPS you can connect to via SNMP, select this. default n