Bjoern, After a successful $ make modules in /usr/src/linux-source-2.6.27 There is the failure below in agrsm compile. Any ideas? MarvS /usr/src/modules/agrsm-20080808$ make module make -C /usr/src/linux-source-2.6.27/ SUBDIRS=/usr/src/modules/agrsm-20080808 modules make[1]: Entering directory `/usr/src/linux-source-2.6.27' CC [M] /usr/src/modules/agrsm-20080808/agrsoftmodem.o /usr/src/modules/agrsm-20080808/agrsoftmodem.c: In function 'kill_proc_wrap': /usr/src/modules/agrsm-20080808/agrsoftmodem.c:319: error: implicit declaration of function 'kill_proc' /usr/src/modules/agrsm-20080808/agrsoftmodem.c: In function 'x_task_queue_init': /usr/src/modules/agrsm-20080808/agrsoftmodem.c:450: warning: assignment from incompatible pointer type /usr/src/modules/agrsm-20080808/agrsoftmodem.c: In function 'x_task_queue_init_usb': /usr/src/modules/agrsm-20080808/agrsoftmodem.c:462: warning: assignment from incompatible pointer type /usr/src/modules/agrsm-20080808/agrsoftmodem.c: At top level: /usr/src/modules/agrsm-20080808/agrsoftmodem.c:489: warning: function declaration isn't a prototype /usr/src/modules/agrsm-20080808/agrsoftmodem.c:515: warning: function declaration isn't a prototype /usr/src/modules/agrsm-20080808/agrsoftmodem.c:525: warning: function declaration isn't a prototype /usr/src/modules/agrsm-20080808/agrsoftmodem.c:532: warning: function declaration isn't a prototype make[2]: *** [/usr/src/modules/agrsm-20080808/agrsoftmodem.o] Error 1 make[1]: *** [_module_/usr/src/modules/agrsm-20080808] Error 2 make[1]: Leaving directory `/usr/src/linux-source-2.6.27' make: *** [module] Error 2