Doubt regarding iio task 01

Doubt regarding iio task 01

[sayli karnik]

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Hello,

I ran the following compilation command:
make drivers/iio/dummy/iio_dummy_evgen.ko

The following is the error encountered:
https://www.irccloud.com/pastebin/aO6XB4Le

I have enabled the config options required:
 #
 # IIO dummy driver
 #
 CONFIG_IIO_DUMMY_EVGEN=m
 CONFIG_IIO_SIMPLE_DUMMY=m
 CONFIG_IIO_SIMPLE_DUMMY_EVENTS=y
 CONFIG_IIO_SIMPLE_DUMMY_BUFFER=y

Could you point me towards a solution to this?

Thanks!

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Re: [Outreachy kernel] Doubt regarding iio task 01

[Julia Lawall]

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On Sat, 24 Sep 2016, sayli karnik wrote:

> Hello,
>
> I ran the following compilation command:
> make drivers/iio/dummy/iio_dummy_evgen.ko
>
> The following is the error encountered:
> https://www.irccloud.com/pastebin/aO6XB4Le
>
> I have enabled the config options required:
>  #
>  # IIO dummy driver
>  #
>  CONFIG_IIO_DUMMY_EVGEN=m
>  CONFIG_IIO_SIMPLE_DUMMY=m
>  CONFIG_IIO_SIMPLE_DUMMY_EVENTS=y
>  CONFIG_IIO_SIMPLE_DUMMY_BUFFER=y
>
> Could you point me towards a solution to this?

I don't know anything about this case specifically, but maybe it would
help to do make clean, make allmodconfig, then check on the above
configuration variables, and then make.

If you already this, ie started your kernel compile from scratch, then you
will have to wait for Alison or Daniel :)

julia


>
> Thanks!
>
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Re: Doubt regarding iio task 01

[Alison Schofield]

On Sat, Sep 24, 2016 at 07:11:23PM +0530, sayli karnik wrote:
> Hello,
> 
> I ran the following compilation command:
> make drivers/iio/dummy/iio_dummy_evgen.ko
> 
> The following is the error encountered:
> https://www.irccloud.com/pastebin/aO6XB4Le
> 
> I have enabled the config options required:
>  #
>  # IIO dummy driver
>  #
>  CONFIG_IIO_DUMMY_EVGEN=m
>  CONFIG_IIO_SIMPLE_DUMMY=m
>  CONFIG_IIO_SIMPLE_DUMMY_EVENTS=y
>  CONFIG_IIO_SIMPLE_DUMMY_BUFFER=y
> 
> Could you point me towards a solution to this?
> 
> Thanks!
Hi Sayli,

Hope this helps...ask more if you get stuck.

git grep those undefined labels and you'll find you need industrialio.ko

To use insmod you'll need to insmod the dependencies. 

insmod industrialio.ko
insmod iio_dummy_evgen.ko
insmod kfifo_buf.ko
insmod iio_dummy.ko

Your end result will satisfy these dependencies..

$ lsmod | grep dummy
iio_dummy              16384  0
kfifo_buf              16384  1 iio_dummy
iio_dummy_evgen        16384  2 iio_dummy
industrialio           61440  3 iio_dummy,kfifo_buf,iio_dummy_evgen

alisons