QML Camera - setting WhiteBalance, Exposure, ISO doesn't work as expected

WhiteBalance

Tried setting WhiteBalance in Qt Declarative Camera Example, but nothing changed.

Found out that the Example App shows WhiteBalanceModes, but the Example App doesn't test the Modes with 

isWhiteBalanceModeSupported(WhiteBalanceMode mode)

Did the tests in my own QML Camera App: Auto is supported and getting false for all other WB Modes.

But the Camera from Android OS supports it. see screenshot

ExposureMode

There are also problems with ExposureMode / ManualExposureTime.

Cannot verify with Declarative Camera App because ExposureModes aren't part of the App.

In my App testing all the ExposureModes with 

isExposureModeSupported(ExposureMode mode)

 only Auto is true, all other modes are false. Tried setting manualExposureTime - also doesn't work.

Taking a look at Android OS Camera: setting ExposureTime works. see screenshot

IsoSensitivity

same problem with IsoSensitivity. Setting manualIsoSensitivity has no effect. Android OS Camera does this.