The main target is additive fabrication using FFF processes. The config files are loaded when the phosphor-fan-control application starts.This page tries to describe the flavour of G-codes that the RepRap firmwares use and how they work. If a config file exists in the override directory, it will continue to be used as the fan presence configuration instead of the config file located under the appropriate location within the supported directory. The override directory will not be modified by a firmware update.
#FANCONTROL CONFIG FILE UPDATE#
When a new firmware image is installed on the BMC, it will update the config file in the standard directory. The phosphor-fan-control application will search for each config file at the directory locations in the following order: Mkdir -p /etc/phosphor-fan-presence/control Search Order The override directory may not exist on the BMC, therefore to be able to use any number of overriding config files it must be created using the following command:
#FANCONTROL CONFIG FILE INSTALL#
This avoids the need to build and install a new firmware image on the BMC when changing any part of the configuration, such as for testing purposes. Override DirectoryĪ different version of each of the config files can be loaded by placing it into this writable directory location.
If any required config file is not found and the machine is powered on, an error is logged and phosphor-fan-control application terminates preventing the machine from successfully powering on. The phosphor-fan-control application then traverses the supported directory, appending each compatible system type entry as a sub-directory from most specific to most general on each config file until it is found. The Names property contains a list of one or more compatible system types, ordered from most specific to the most general. This is necessary where more than one type of machine is supported in a single BMC firmware image and those system types can not share any one common config file.Ī system type sub-directory can be obtained from the IBMCompatibleSystem D-Bus interface's Names property. The config files location can also be based on a system type. usr/share/phosphor-fan-presence/control/events.json Compatible System Type Location usr/share/phosphor-fan-presence/control/groups.json usr/share/phosphor-fan-presence/control/zones.json usr/share/phosphor-fan-presence/control/fans.json usr/share/phosphor-fan-presence/control/profiles.json usr/share/phosphor-fan-presence/control/manager.json Where a single set of config files for 1-or-more system types can be used, the config files can be located at the base of the supported directory. This is where the config files will be loaded from when no corresponding override config file exists.
The supported version of the config files are installed under this read-only directory location as part of the firmware image install. usr/share/phosphor-fan-presence/control/ The config file is written using the JSON (JavaScript Object Notation) data format and can be created using a text editor. The phosphor-fan-control application is comprised of as set of configuration files (config files) that constructs the algorithm in which fans are controlled within a machine. Fan Control Configuration File Table of Contents
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