Problem in First-Patch-Tutorial

[SIMRAN SINGHAL]

On Sun, Mar 12, 2017 at 5:55 PM, Lino Sanfilippo <LinoSanfilippo at gmx.de> wrote:
> Hi,
>
> On 12.03.2017 13:15, SIMRAN SINGHAL wrote:
>> On Sun, Mar 12, 2017 at 4:04 PM, Varsha Rao <rvarsha016 at gmail.com> wrote:
>>> Hello Simran,
>>>
>>>> In Reloading Modules I tried the first command it works fine for me.
>>>>
>>>> git/kernels/staging$ ls drivers/iio/dummy/*.ko
>>>> drivers/iio/dummy/iio_dummy_evgen.ko  drivers/iio/dummy/iio_dummy.ko
>>>>
>>>> Then I tried to run second-command
>>>>
>>>> git/kernels/staging$ sudo modprobe -r iio_dummy_evgen
>>>>
>>>> I got the following error:-
>>>> modprobe: FATAL: Module iio_dummy_evgen not found.
>>>
>>>   Maybe as iio_dummy_evgen is not loaded it causes this error.
>>>
>>>> I am not getting what is wrong with this.
>>>
>>> You need to execute commands in following order
>>>
>>> make drivers/iio/dummy/iio_dummy_evgen.ko
>>> make drivers/iio/dummy/iio_dummy.ko
>>>
>>> sudo modprobe iio_dummy_evgen
>>> sudo modprobe iio_dummy
>>>
>>> Check if they are loaded successfully with lsmod | grep "iio".
>>>
>>> Thanks,
>>> Varsha
>>
>> This is also not working. I am getting this error now:
>> modprobe: FATAL: Module iio_dummy_evgen not found in directory
>> /lib/modules/4.10.0-rc3+
>>
>> I am basically trying to do the Task1 of IIO. Here is the link:-
>> https://kernelnewbies.org/IIO_tasks
>>
>> In this task they have asked to use this:
>> $ insmod iio_dummy_evgen.ko
>>
>> As this was not working, so I tried modprobe.
>>
>
>
> modprobe is just a wrapper around insmod. So if insmod does not work, modprobe wont either.
> Could it be that the kernel you build the module for is not the kernel that you are currently
> running?
>
> Regards,
> Lino
>
Thanks Lino,
My kernel is up-to-date.

>
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