iMX8QM android auto : How to get Vehicle Sensor value in Android app

ts_ki — Fri, 24 Feb 2023 05:35:03 GMT

hello,

I'm trying to add and communicate new Car properties like sensors with RPMSG between Android app (A72) and M4 core
using Rear view camera sample source in iMX8Qm Anroid Auto.

I figured out how to send data from the M4 core to the A72 core through RPMSG,

(android_build\vendor\nxp\mcu-sdk-auto\SDK_MEK-MIMX8QM\boards\mekmimx8qm\demo_apps\rear_view_camera)

but I haven't yet found how to receive and process new data sent by the M4 core

at the Android App level.

I found that the already existing VEHICLE_GEAR was used in the cluster app, but the deeper part of getting data using the kernel driver was not found yet.

android_build\vendor\nxp-opensource\kernel_imx\drivers\mxc\vehicle

vehicle_dummy_hw.c, vehicle_rpmsg_m4.c, vehicle_core.c

It seems that the above source is used at the Linux device driver level.
I want to know the source code to access the driver from to communicate in the Android app
for adding new Car proerty value like sensors.

I guess somewhere in android_build\packages\services\Car

or is invisible because of moduled?

Can you tell me where the source code is?

Re: iMX8QM android auto : How to get Vehicle Sensor value in Android app

ts_ki — Mon, 27 Feb 2023 06:57:47 GMT

I found the source code thanks!

topic iMX8QM android auto : How to get Vehicle Sensor value in Android app in i.MX Processors

iMX8QM android auto : How to get Vehicle Sensor value in Android app

Re: iMX8QM android auto : How to get Vehicle Sensor value in Android app