Recognize interface in usb_hid_get_feature_report_start

[lam2398]

Hi,
I try to create 2 interfaces (to have 2 devices /dev/hiddraw... in linux) but i am struggling with the function usb_hid_get_feature_report_start. My idea is these 2 interfaces will send 2 different reports in this function before they get data from host. I don't know how to identify which interface is requested
My question: Is there any way to to identify first interface or second interface in usb_hid_get_feature_report_start function.

I have no knowledge about USB, just custom available examples in this repo to achieve my purpose of use. Please forgive me if my question sounds silly.