Hi! After the recent changes, I can no longer compile for Kernel 3.13 BR, Jasmin Here the build Log: Kernel build directory is /lib/modules/3.13.0-117-generic/build make -C ../linux apply_patches make[2]: Entering directory '/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/linux' Patches for 3.13.0-117-generic already applied. make[2]: Leaving directory '/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/linux' make -C /lib/modules/3.13.0-117-generic/build SUBDIRS=/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l modules make[2]: Entering directory '/mnt/home_hdd/jasmin/vdr/dd_driver/linux-headers-3.13.0-117-generic' CC [M] /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-lpt.o CC [M] /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-jtag.o CC [M] /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-comp.o In file included from <command-line>:0:0: /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/compat.h: In function 'dev_fwnode': /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/compat.h:2017:12: error: 'struct device' has no member named 'fwnode' return dev->fwnode; ^ /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-lpt.c: At top level: cc1: warning: unrecognized command line option '-Wno-implicit-fallthrough' cc1: warning: unrecognized command line option '-Wno-unused-const-variable' scripts/Makefile.build:308: recipe for target '/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-lpt.o' failed make[3]: *** [/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-lpt.o] Error 1 make[3]: *** Waiting for unfinished jobs.... In file included from <command-line>:0:0: /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/compat.h: In function 'dev_fwnode': /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/compat.h:2017:12: error: 'struct device' has no member named 'fwnode' return dev->fwnode; ^ /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-comp.c: At top level: cc1: warning: unrecognized command line option '-Wno-implicit-fallthrough' cc1: warning: unrecognized command line option '-Wno-unused-const-variable' scripts/Makefile.build:308: recipe for target '/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-comp.o' failed make[3]: *** [/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-comp.o] Error 1 In file included from <command-line>:0:0: /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/compat.h: In function 'dev_fwnode': /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/compat.h:2017:12: error: 'struct device' has no member named 'fwnode' return dev->fwnode; ^ /mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-jtag.c: At top level: cc1: warning: unrecognized command line option '-Wno-implicit-fallthrough' cc1: warning: unrecognized command line option '-Wno-unused-const-variable' scripts/Makefile.build:308: recipe for target '/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-jtag.o' failed make[3]: *** [/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l/altera-jtag.o] Error 1 Makefile:1279: recipe for target '_module_/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l' failed make[2]: *** [_module_/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l] Error 2 make[2]: Leaving directory '/mnt/home_hdd/jasmin/vdr/dd_driver/linux-headers-3.13.0-117-generic' Makefile:51: recipe for target 'default' failed make[1]: *** [default] Error 2 make[1]: Leaving directory '/mnt/home_hdd/jasmin/vdr/dd_driver/git/media_build/v4l' Makefile:26: recipe for target 'all' failed