HI,NXP:
我们在android auto 9的基线上插入USB HID touchscreen ,能识别USB HID PID,VID,但就是没有触摸事件通过USB传到SOC。这个USB HID touchscreen在WIN电脑与手机OTG上都能正常识别并使用触摸。
请帮忙看下是否基线的USB协议不完整或者有什么patch,或者需要哪个基线版本来验证?
Hi @MickyHe,
I hope you are doing well.
Thanks for the details.
->Please kindly check with the latest Android Auto OS-12.1.0_1.1.0, It is recommended to use it Because it's more feasible and reliable than the older one.
->One can check the difference between the 2 versions of the file with the below-given command.
git diff master..otherbranch > myDiffFile.diff
This will help you.
Thanks & Regards,
Dhruvit Vasavada
Hi @MickyHe,
I hope you are doing well.
Please make sure to run make menuconfig and have enabled USB Touch screen to rebuild the kernel.
Device Drivers -> HID Devices -> Special HID drivers -> HID Multitouch panels as an embedded driver (*) in Kernel configuration, and then add touchscreen's Vendor ID and Device/Product ID to kernel drivers table and rebuilt the Kernel.