Drivers/modules uClinux on STM3210E_EVAL

[hervieux]

Posted on March 15, 2010 at 11:17

Drivers/modules uClinux on STM3210E_EVAL

[hervieux]

Posted on May 17, 2011 at 13:43

Hi,

I managed to compile my module ( ''hello_world''), but when I do I try the command ''insmod'', I get the following error:

''mydriver: unknown relocation: 10''

''insmod: can not insert` `mydriver.ko: invalid module format''

Yet, when I command ''modinf mydriver.ko'' I have the following message:

filename: mydriver.ko

License: GPL

author: Cedric Hervieux, RFID

Description: mydriver2

Depends:

vermagic: 2.6.26-UC0 ARMv7

parm: major: Static Major number (none = Dynamic) (int)

And so my ''vermagic'' corresponds with the version of my uClinux!

Someone would have an idea?

Thank you very much

Cédric

[eagles8601]

Posted on May 17, 2011 at 13:43

Hello Cédric,

Your driver should be build as a static module (compiled within the kernel) module loader doesn't support thumb relocation. You can put your driver under ''drivers/xxxx/yourmodule.c'' where xxxx is the driver sub category, and yourmodule.c is your driver module. Under drivers/xxxx/ update ''Makefile''/''Kconfig'' files to compile the new module. /*******************************************************/ in Kconfig : config XXXX_MY_DRIVER        bool ''Select my driver to be compiled or not''         depends on XXX_OTHER_MODULE_IF_IT_DEPENDS_ON        help          Your module description ...... /*******************************************************/ in Makefile : obj-$(CONFIG_XXXX_MY_DRIVER)                +=  yourmodule.o /*******************************************************/ From the kernel configuration menu you can now select your driver to be compiled. Rebuild the kernel and run it. Good luck.

[hervieux]

Posted on May 17, 2011 at 13:43

Hi,

Thank you very much for your help, I have now managed to insert my module.

Small remark, so I used the command ''mknod ...''

to create the special file ( ''/ dev / mydriver''), only I had the following error:

''read only file system''.

So I create the special file on my PC with ubuntu HOST in the directory ''romfs'' and I do a ''make image''.

Looks like it worked, thank you again for your help!

Cédric