Loadable Module Compilation Options

["David Wooff" <David.Wooff@xxxxxxxxxx>]

Hello,

how do I establish what build options I need to compile a driver module for my ARM processor?

 

I currently have a working kernel (2.6.30) running on an Atmel AT91SAM9G20-EK and I'm able to compile a simple application in Eclipse simply by pointing the compiler and linker commands to the appropriate cross-compiler path with some very basic compiler options.  I can also download to the target and run.

 

However, when I come to try to build a simple loadable driver module (does nothing but print a kernel message), I get all sorts of build errors.  I believe I'm missing a lot of options - things like __KERNEL__ and __LINUX_ARM_ARCH__ etc.  There is a makefile in ~/linux-2.6.30/arch/arm but it's geared towards building the kernel (I think) and it is extremely hard to pick out exactly what I need.

 

Dave W.

 

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