improve changelog, add entry

CHANGELOG.md

@@ -12,28 +12,43 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Changes
 
+
+- New CMake option `FSFW_HAL_LINUX_ADD_LIBGPIOD` to specifically exclude `gpiod` code.
+  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/572
+- HAL Devicehandlers: Periodic printout is run-time configurable now
+- `oneShotAction` flag in the `TestTask` class is not static anymore
+- IPC Message Queue Handling: Allow passing an optional `MqArgs` argument into the MessageQueue
+  creation call. It allows passing context information and an arbitrary user argument into
+  the message queue. Also streamlined and simplified `MessageQueue` implementation for all OSALs
+  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/583
+
+### HAL
+
 - HAL Linux SPI: Set the Clock Default State when setting new SPI speed
   and mode
   PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/573
 - GPIO HAL: `Direction`, `GpioOperation` and `Levels` are enum classes now, which prevents
   name clashes with Windows defines.
   PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/572
-- New CMake option `FSFW_HAL_LINUX_ADD_LIBGPIOD` to specifically exclude `gpiod` code.
-  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/572
-- HAL Devicehandlers: Periodic printout is run-time configurable now
-- `oneShotAction` flag in the `TestTask` class is not static anymore
 - HAL Linux Uart: Baudrate and bits per word are enums now, avoiding misconfigurations
   PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/585
-- IPC Message Queue Handling: Allow passing an optional `MqArgs` argument into the MessageQueue
+
-  creation call. It allows passing context information and an arbitrary user argument into
+### Time
-  the message queue. Also streamlined and simplified `MessageQueue` implementation for all OSALs
+
-  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/583
+- `timeval` to `TimeOfDay_t`
-- Clock: 
+- Added Mutex for gmtime calls: (compare http://www.opengate.at/blog/2020/01/timeless/)
-  - `timeval` to `TimeOfDay_t`
+- Moved the statics used by Clock in ClockCommon.cpp to this file
-  - Added Mutex for gmtime calls: (compare http://www.opengate.at/blog/2020/01/timeless/)
+- Better check for leap seconds
-  - Moved the statics used by Clock in ClockCommon.cpp to this file
+- Added Unittests for Clock (only getter)
-  - Better check for leap seconds
+
-  - Added Unittests for Clock (only getter)
+### Power 
+
+- `PowerSwitchIF`: Remove `const` specifier from `sendSwitchCommand` and `sendFuseOnCommand` and
+  also specify a `ReturnValue_t` return type
+  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
+- Extend `PowerSwitcher` module to optionally check current state when calling `turnOn` or
+  `turnOff`. Tis can be helpful to avoid commanding switches which do not need commanding
+  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
 
 ## Removed
 
@@ -49,6 +64,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/559
 - Added ETL dependency and improved library dependency management
   PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/592
+- Add a `DummyPowerSwitcher` module which can be useful for test setups when no PCDU is available
+  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
+- New typedef for switcher type
+  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/590
 
 ## Fixed