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# Car rotary service
## Building
```
make CarRotaryController -j64
```
## Enable/disable RotaryService
To enable, run:
```
adb shell settings put secure enabled_accessibility_services com.android.car.rotary/com.android.car.rotary.RotaryService
```
To disable, run:
```
adb shell settings delete secure enabled_accessibility_services
```
## Inject events
### Inject RotaryEvent
To rotate the controller counter-clockwise, run:
```
adb shell cmd car_service inject-rotary
```
For clockwise, run:
```
adb shell cmd car_service inject-rotary -c true
```
To rotate the controller multiple times (100 ms ago and 50 ms ago), run:
```
adb shell cmd car_service inject-rotary -dt 100 50
```
### Inject KeyEvent
To nudge the controller up, run:
```
adb shell cmd car_service inject-key 280
```
Use KeyCode ```280``` for nudge up, ```281``` for nudge down,```282``` for nudge left,```283``` for
nudge right.
To click the controller center button, run:
```
adb shell cmd car_service inject-key 23
```
To long click the controller center button, send down and up action seperately. For example:
```
adb shell cmd car_service inject-key 23 -a down && sleep 2 && adb shell cmd car_service inject-key 23 -a up
```