Hi all, After reading the The Linux Kernel Module Programming Guide, I have written a very simple module that reads the value of variable xtime declared in time.h and displays the output in /proc/xtime_procfs - http://docs.google.com/Doc?id=dftrdgx_0hsjqkhfs Here is the Makefile- http://docs.google.com/Doc?id=dftrdgx_1dtb3fpg5 The problem is that xtime variable is not being resolved by the compiler- [root@localhost host-tests]# make make -C /lib/modules/2.6.27.19-78.2.30.fc9.i686/build M=/root/host-tests modules make[1]: Entering directory `/usr/src/kernels/2.6.27.19-78.2.30.fc9.i686' Building modules, stage 2. MODPOST 1 modules WARNING: "xtime" [/root/host-tests/xtime-mod.ko] undefined! make[1]: Leaving directory `/usr/src/kernels/2.6.27.19-78.2.30.fc9.i686' [root@localhost host-tests]# I have included the path to the correct sources in the Makefile and ensured that time.h is present here- /usr/src/kernels/2.6.27.19-78.2.30.fc9.i686/include I have also installed the kernel headers. Can someone please tell me what I'm missing ? Many thanks, Harsha -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ