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I've been playing recently with the Android Car API using the available Android Automotive OS AVD images (Polestar 2 and Automotive). The AVD UI reveals some controls for HVAC as well (on the "Vhal properties" tab), but so far I wasn't able to access them because the system denies the PERMISSION_CONTROL_CAR_CLIMATE request. The other permissions like PERMISSION_SPEED, PERMISSION_POWERTRAIN and PERMISSION_ENERGY have been granted and I could access the related sensor data etc. (mostly on the "Car sensor data" tab of the machine UI).

Q: Has anybody succeeded in accessing the HVAC properties on the aforementioned AVDs through the Car API?

Dhaval Solanki
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Bronsky Bite
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  • Does work the feature via HVAC application? – Andrey Samoilov Jul 14 '20 at 16:50
  • PERMISSION_CONTROL_CAR_CLIMATE is not referenced in `developer API`. Also, IntelliSense in Android Studio 4.0 does not find it. https://developer.android.com/reference/android/car/Car However, AOSP does show some references in PropertyHalServiceIds.java. https://android.googlesource.com/platform/packages/services/Car/+/master/service/src/com/android/car/hal/PropertyHalServiceIds.java . May be the said permission is removed? – Coder Oct 07 '20 at 14:39

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Contrary to e.g. android.car.permission.CAR_SPEED, the android.car.permission.CONTROL_CAR_CLIMATE is defined in the Android sources with android:protectionLevel="signature|privileged" attribute, which means that no ordinary apps can access it.

Bronsky Bite
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