SEAT_FOOTWELL_LIGHTS_SWITCH
What it is
Represents property for the seat footwell lights switch.
SEAT_FOOTWELL_LIGHTS_SWITCH represents the position of the switch controlling the lights. This is different from the function of SEAT_FOOTWELL_LIGHTS_STATE which reflects the current state of the lights at any point in time. Therefore, SEAT_FOOTWELL_LIGHTS_SWITCH may not match the value of SEAT_FOOTWELL_LIGHTS_STATE (e.g. SEAT_FOOTWELL_LIGHTS_SWITCH=AUTOMATIC and SEAT_FOOTWELL_LIGHTS_STATE=ON).
This property should only be implemented if SEAT_FOOTWELL_LIGHTS_SWITCH's value may be different from that of CABIN_LIGHTS_SWITCH.
For each supported area ID, the VehicleAreaConfig#supportedEnumValues must be defined unless all enum values of VehicleLightSwitch are supported.
This property is defined as VehiclePropertyAccess.READ_WRITE, but OEMs have the option to implement it as VehiclePropertyAccess.READ only.
How the ID is built
A property ID is a 32-bit value packing four fields. Reading 0x15400b9c apart:
| Field | Mask | Value | Means |
|---|---|---|---|
| Group | 0xf0000000 | 0x10000000 | SYSTEM |
| Area | 0x0f000000 | 0x05000000 | SEAT |
| Type | 0x00ff0000 | 0x00400000 | INT32 |
| Ordinal | 0x0000ffff | 0x00000b9c | 0xb9c |
Reading it from an app
CarPropertyManager mgr = (CarPropertyManager)
car.getCarManager(Car.PROPERTY_SERVICE);
int value =
mgr.getIntProperty(VehiclePropertyIds.SEAT_FOOTWELL_LIGHTS_SWITCH, areaId);This property can be read and written, though an OEM may implement it as read-only. It fires a callback whenever the value changes.