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

[sanmukh rao]

I am out of ideas.

I have Ubuntu 13.04 as the OS and the kernel version is 3.11.0-rc7 which I
compiled myself.

sanmukh at sanmukh-laptop:/config/usb_gadget/g1/strings$ insmod --version
kmod version 9

sanmukh at sanmukh-laptop:/config/usb_gadget/g1/strings$ lsb_release -a
No LSB modules are available.
Distributor ID:    Ubuntu
Description:    Ubuntu 13.04
Release:    13.04
Codename:    raring


Thanks,
Sanmukh


On Thu, Sep 5, 2013 at 10:42 PM, <binoy.jayan at wipro.com> wrote:

> HI Sanmukh,
>
> Thank you for testing the code. Yes I am using the same file and there is
> no typo. When I insert the module it inserts just fine.
>
> In this case mystring takes the default value "blah" as seen in log below.
>
> dmesg:
>
> [ 7907.858933] Demonstrating module parameters
> [ 7907.858937] ===============================
> [ 7907.858939] myshort is a short integer: 1
> [ 7907.858941] myint is an integer: 420
> [ 7907.858943] mylong is a long integer: 9999
> [ 7907.858945] mystring is a string: blah
> [ 7907.858947] myintArray[0] = -1
> [ 7907.858948] myintArray[1] = -1
> [ 7907.858950] got 0 arguments for myintArray.
>
>  I am wondering if there is an issue with the kernel version or the insmod
> utility.
>
> Could you tell me what version of operating system and insmod you are
> using? I am using a development branch of Ubuntu.
>
> $ lsb_release -a
> No LSB modules are available.
> Distributor ID:    Ubuntu
> Description:    Ubuntu Saucy Salamander (development branch)
> Release:    13.10
> Codename:    saucy
>
> $ insmod -V
> kmod version 9
>
>
> Thanks,
> Binoy
>
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> From: sanmukh rao [i.sanmukh at gmail.com]
>
> Sent: Friday, September 06, 2013 10:37 AM
>
> 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 kernel 3.11.0-rc7 and it seems to be working fine. Are you sure the
> file attached is the correct one or there is no typo? See the output which
> I got compiling your file and loading it as a module in the attachment.
>
>
>
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>
> Thanks,
>
> Sanmukh
>
>
>
>
>
>
> On Thu, Sep 5, 2013 at 9:52 PM, <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
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> Regards,
>
> Binoy Jayan
>
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