I have been using today my guitar in the line in jack of my Zoom H2N (TS from guitar -> adapter to minijack TRS -> line in, and edited the files
Rocksmith.ini
Win32UltralowLatency = 1 (otherwise Rocksmith sound will not start)
Latency Buffer =2 (less than that provides crackling slowed sound)
RSASIO.ini to the appropriate driver (ZOOM H and S ASIO)
I have been using today my guitar in the line in jack of my Zoom H2N (TS from guitar -> adapter to minijack TRS -> line in, and edited the files Rocksmith.ini