This might help for the 2.6.20 kernel. For compiling you can use the autoconf.h instead of config.h (as listed in the acx100 documentation for the fedora distribution, this seems to be a pretty good solution, since I can compile the sources from acx100.sourceforge.net: it compiles well but I get a segmentation fault when inserting the module with insmod).
Create a link: ln -s /usr/src/linux-headers-`uname -r`/include/linux/autoconf.h /usr/src/linux-headers-`uname -r`/include/linux/config.h However now I get a segmentation fault during compiling: # Build modules /usr/bin/make -C "/lib/modules/2.6.21-1-k7/build" M="/usr/src/modules/acx100" make[2]: Entering directory `/usr/src/linux-headers-2.6.21-1-k7' LD /usr/src/modules/acx100/built-in.o CC [M] /usr/src/modules/acx100/wlan.o /bin/sh: line 1: 7487 Segmentation fault scripts/basic/fixdep /usr/src/modules/acx100/.wlan.o.d /usr/src/modules/acx100/wlan.o ' gc c-4.1 -m32 -Wp,-MD,/usr/src/modules/acx100/.wlan.o.d -nostdinc -isystem /usr/lib/gcc/i486-linux-gnu/4.1.3/include -D__KERNEL__ -Iinclude -include include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Os -pipe -msoft-f loat -mregparm=3 -freg-struct-return -mpreferred-stack-boundary=2 -march=athlon -ffreestanding -maccumulate-outgoing-args -DCONFIG_AS_CF I=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -Iinclude/asm-i386/mach-default -fomit-frame-pointer -fno-stack-protector -Wdeclaration-after-stateme nt -Wno-pointer-sign -DMODULE -D"KBUILD_STR(s)=\#s" -D"KBUILD_BASENAME=KBUILD_STR(wlan)" -D"KBUILD_MODNAME=KBUILD_STR(acx)" -c -o /usr /src/modules/acx100/.tmp_wlan.o /usr/src/modules/acx100/wlan.c' >/usr/src/modules/acx100/.wlan.o.tmp make[3]: *** [/usr/src/modules/acx100/wlan.o] Error 139 make[2]: *** [_module_/usr/src/modules/acx100] Error 2 make[2]: Leaving directory `/usr/src/linux-headers-2.6.21-1-k7' make[1]: *** [binary_modules] Error 2 make[1]: Leaving directory `/usr/src/modules/acx100' make: *** [kdist_build] Error 2 BUILD FAILED! -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]