HW_CUSTOM_INPUT
What it is
Defines a custom OEM partner input event.
This input event must be used by OEM partners who wish to propagate events not supported by Android. It is composed by an array of int32 values only.
The Android properties are:
int32Values[0] : Input code identifying the function representing this event. Valid event types are defined by CustomInputType.CUSTOM_EVENT_F1 up to CustomInputType.CUSTOM_EVENT_F10. They represent the custom event to be defined by OEM partners. int32Values[1] : target display type defined in VehicleDisplay. Events not tied to specific display must be sent to VehicleDisplay#MAIN. int32Values[2] : repeat counter, if 0 then event is not repeated. Values 1 or above means how many times this event repeated.
How the ID is built
A property ID is a 32-bit value packing four fields. Reading 0x11410000 apart:
| Field | Mask | Value | Means |
|---|---|---|---|
| Group | 0xf0000000 | 0x10000000 | SYSTEM |
| Area | 0x0f000000 | 0x01000000 | GLOBAL |
| Type | 0x00ff0000 | 0x00410000 | INT32_VEC |
| Ordinal | 0x0000ffff | 0x00000000 | 0x0 |
Reading it from an app
This property is defined in the HAL but is not exposed as a constant in android.car.VehiclePropertyIds, so it is not reachable through CarPropertyManager from an ordinary app. It is used by the platform, or by vendor code running with system privileges.