On 10/12/2010 12:30 PM, shivanth m p wrote: > > > On Tue, Oct 12, 2010 at 12:43 PM, Wouter Simons <lkml@xxxxxxxxxxxxxxxx > <mailto:lkml@xxxxxxxxxxxxxxxx>> wrote: > > On 10/11/2010 05:20 PM, shivanth m p wrote: > > I created a kernel module for the 2.6.33 kernel outside the kernel > > source directory . When i give the make command it says > > Nothing to be done for /root/mydrivers > > > > Here's my makefile > > > > obj-m +=mydiver.o > > modules : > > make -C ..kerndev/linux-2.6/ M=$(PWD) modules > Don't you mean ../kerndev instead of ..kerndev ;-) > > Wouter > > I'm pretty sure its not the typo thing . > Checked it a thousand times . > > when does make give nothing to be done for "directory" warning ? This > answer will help a lot I think the makefile you need should probably have something along these lines: all: obj-m += modname.o modname-y := mydriver.o make -C ../kerndev/linux-2.6/ M=$(PWD) modules clean: make -C ../kerndev/linux-2.6/ M=$(PWD) clean Make is not giving the error, I think it is the Kbuild system determining that there is nothing to be done for your files because there are no objects to be placed in your module. The documentation on making makefiles for your projects is in Documentation/kbuild HTH, Wouter PS: My makefiles are a bit different, because I check if I am in the kernel build system first. If so, the modules are specified, if not I invoke the make command with the right options. Have a look here for a more detailed explanation of setting up such a makefile: http://lwn.net/images/pdf/LDD3/ch02.pdf -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
