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# Usage
## 1) Add app-controller-submodule as a submodule to include in your project
```bash
git submodule add https://gerrit.automotivelinux.org/gerrit/apps/app-controller-submodule
```
## 2) Add app-controller-submodule as a static library to your binding
```cmake
# Library dependencies (include updates automatically)
TARGET_LINK_LIBRARIES(${TARGET_NAME}
ctl-utilities
... other dependencies ....
)
```
## 3) Declare your controller config section in your binding
```C
// CtlSectionT syntax:
// key: "section name in config file"
// loadCB: callback to process section
// handle: a void* pass to callback when processing section
static CtlSectionT ctlSections[]= {
{.key="plugins" , .loadCB= PluginConfig, .handle= &halCallbacks},
{.key="onload" , .loadCB= OnloadConfig},
{.key="halmap" , .loadCB= MapConfigLoad},
{.key=NULL}
};
```
## 4) Do the controller config parsing at binding pre-init
```C
// check if config file exist
const char *dirList= getenv("CTL_CONFIG_PATH");
if (!dirList) dirList=CONTROL_CONFIG_PATH;
const char *configPath = CtlConfigSearch(apiHandle, dirList, "prefix");
if(!confiPath) return -1;
ctlConfig = CtlConfigLoad(dirList, ctlSections);
if (!ctlConfig) return -1;
```
## 5) Execute the controller config during binding init
```C
int err = CtlConfigExec (ctlConfig);
```
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