Report's answer comes as INTERRUPT, not as SET_REPORT response

[qodroi]

I couldn't get the idea of it. I intercept the Wireshark packets of hidpp20-call-function, while the binary returns back the correct data, Wireshark returns an empty SET_REPORT response and an INTERRUPT IN packet that contains the actual expected values.

How does hidpp20-call-function handles this behaviour?

Thanks!

[cvuchener]

Input and output reports are independent in HID protocol. The response is matched with the command by checking feature/function/softwareID from the HID++ data.