Hi Giovanni, Seems you do not support yet 2.6.36 kernel? Could you please have a look, maybe it needs a trivial change to compile under 2.6.36 ? root@lab3:/usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss# make make -C /lib/modules/2.6.36.4/build M=/usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss LDDINC=/usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss/../include modules make[1]: Entering directory `/usr/src/linux-headers-2.6.36.4' CC [M] /usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss/main.o /usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss/main.c:315: error: unknown field ‘ioctl’ specified in initializer /usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss/main.c:315: warning: initialization from incompatible pointer type make[2]: *** [/usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss/main.o] Error 1 make[1]: *** [_module_/usr/src/freeswitch/src/mod/endpoints/mod_skypopen/oss] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-2.6.36.4' make: *** [modules] Error 2 Sincerely, Anton.