problem with modules

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originally posted by repa@Jun 29 2006, 05:12 AM

(...)

"make menuconfig" it says i have to run "make dep" next, but when i do, it says that it's unnecessary now.

another problem: i can't find the module in uclinux, for some reason. what's the default location for it, if i've followed the instructions?

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In the 2.6 series the module dependencies are created when you run make modules_install. You probably shouldn&#39;t run that command (unless you know what you&#39;re doing).

If you followed the huide your module will be in drivers/misc/hello.ko

I don&#39;t want to question the way the examples works but I personally never write kernel modules INSIDE the kernel tree when developing them. I make a seperate directory with a makefile like:

 #  If KERNELRELEASE is defined, we've been invoked from the#  kernel build system and can use its language.
ifneq ($(KERNELRELEASE),)
    obj-m := hello.ko#  Otherwise we were called directly from the command#  line; invoke the kernel build system.
else
KERNELDIR = /usr/src/cross/linux-2.6.11
PWD := $(shell pwd)
default:
    $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
endif

I found this somewhere on the net so: credits to the guy who wrote this (I forgot where I found it).

You can make your module everywhere now.

You should replace KERNELDIR with the correct directory for you and add your object to the obj-m variable.

you can then build the code with:

ARCH=nios2nommu CROSS_COMPILE=nios2-linux-uclibc- make

or a similar command depending on your compiler.

Hope this helps you!