Re: Module link

[Dave C Boutcher]

On Fri, 7 Jul 2006 15:33:43 +1000 (EST), yh@xxxxxxxxxxxxxx said:
> 
> Thanks Randy. Let me clarify it.
> I have a driver module (NewSerialModule.ko) and I build it for module
> load. This driver module uses i2c functions. It was fine to init this
> module in kernel 2.4 as the i2c functions are exported in i2c Makefile.
> 
> In kernel 2.6, I loaded this module and got NULL point exception. I
> checked the module map, all i2c functions are not linked. I also checked
> i2c, there is no export for i2c in kernel 2.6. So, my question is how can
> I link the dirvers/i2c to my driver module in drivers/char directory? How
> to export a directory to be a library such as i2c? In general, how to link
> another directory functions by a module in kernel 2.6?

It is difficult for any of us to offer assistance unless you provide a
pointer to your source code.

However, I will point out that the i2c functions are exported from
drivers/i2c/i2c-core.c, so you should make sure you have that module
either built into your kernel or loaded.

Dave B
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