Problem in First-Patch-Tutorial

SIMRAN SINGHAL singhalsimran0 at gmail.com
Sun Mar 12 08:28:20 EDT 2017


On Sun, Mar 12, 2017 at 5:57 PM, SIMRAN SINGHAL
<singhalsimran0 at gmail.com> wrote:
> 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.
>

But its still not working.

>>
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