module_param does not work in Ubuntu 13.10 - Kernel 3.10.0-4

[binoy.jayan at wipro.com]

Hi Srinivas,

Thank you for the inputs. The modules works fine with the kernels that come with Ubuntu 10.04, 11.04, 12.04 and 12.10.
But, we are supporting a product for every latest Ubuntu versions. So, I need to make it work with the kernel which comes with the distro alone.
So I cannot use a custom kernel from kernel.org.


Regards,
Binoy Jayan

________________________________
From: Srinivas Ganji [srinivasganji.kernel at gmail.com]
Sent: Friday, September 06, 2013 4:34 PM
To: Binoy Jayan (WT01 - Manufacturing & Hi Tech)
Cc: kernelnewbies at kernelnewbies.org
Subject: Re: module_param does not work in Ubuntu 13.10 - Kernel 3.10.0-4

I have also tested, build KO file using your C file, on my kernel and it is working fine. The kernel version is 3.2.11

Why don't you try any other kernel version and see whether you are getting same error or not? I guess, it works.

Regards,
Srinivas G


On Fri, Sep 6, 2013 at 10:22 AM, <binoy.jayan at wipro.com<mailto:binoy.jayan at wipro.com>> wrote:
Hi all,

I use the kernel version "3.10.0-4" that came with Ubuntu distribution.
When I compile the example module I got from LKMPG (hello-5.c) and try to load the driver by passing the module with the following command, it gives the following error:

# insmod parameter.ko mystring="bebop"
Error: could not insert module parameter.ko: Unknown symbol in module

Error in dmesg:

[ 3687.132110] parameter: Unknown parameter `mystring'

However, if I insert the module without any parameters, it gets inserted just fine.

# insmod parameter.ko

I am attaching the source code for reference. Kindly let me know what could be done.

Thanks,
Binoy















Regards,
Binoy Jayan
WIPRO TECHNOLOGIES
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Bangalore
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