How to get USB HID log in kernel ?

[robinsingh]

Hi All,

I am using IMX8M with yocto BSP.  My kernel is providing USB HID device feature (also UAC2).

We are using libusbgx APIs  in user space for configuring the kernel. And  I would like to get the log (raw data in bytes ) for USB HID in KERNEL. Can someone point me to the right CONFIG in  kernel ,which i need to enable or any additional log i need to add and where (file name etc.) ? 

Thanks

Robin 

[Zhiming_Liu]

Hi @robinsingh 

You may need enable USB gadget configfs feature.

Also you can see this link:

https://developer.toradex.com/knowledge-base/usb-device-mode-linux

Regards

Zhiming