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 NXP:
. config file and PID, VID is OK, SOC recognizes USB HID PID, VID, but there is no touch event passed to the SOC via USB.
Is there any other modification or other information required by us?
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.