lsusb lists my scanner: Bus 001 Device 002: ID 04a9:190f Canon, Inc. CanoScan LiDE 220 kernel 4.9.14: sane-find-scanner or scanimage -L does not detect the scanner. lsusb still shows the above line. kernel 4.9.12: with the same .config compiled worked as expected, scanner is detected and works. -- Joachim Schwender