Can't insert the module

[musenwoody]

Hi.

For there is no headers armhf for 3.18.X, I used 3.12.35+:

I was able to install it without problems, but it couldn't be inserted:

and in dmesg:

I found in modinfo:

The vermagic was 3.12.35 but not 3.12.35+. At this point I am assuming it is because the module I got is 3.12.35 but my Rpi is running 3.12.35+?

I tried modprobe --force-vermagic and got the same error:

I tried the alternative option and get another error:

This is what in make.log:

Would anyone please point me in the right direction?

[digitalLumberjack]

Hi,

Ok i modified the make few days ago. This is what causes the compîlation error. I'm going to make so changes in paralel to the other bug.

I'll let you know

[musenwoody]

Hi.

Thank you for your reply.I will try to compile again when you update the make.

And I want to know that if the vermagic was wrong when I tried to insert module. How could I get the right vermagic matched my kernel?

Can you help me please?

Thanks in advance

[digitalLumberjack]

I think the only way to recompile the module without having headers available in apt, is to recompile the whole kernel, to have a Module.symvers created, and then recompile the module. Ugly.

You are 3.12.35+ check at http://www.niksula.hut.fi/~mhiienka/Rpi/linux-headers-rpi/ you headers are available.

[musenwoody]

Thank you for your reply.

I do have 3.12.35+ headers installed.

But After I installed the driver I still couldn't insert it because of the wrong vermagic in modinfo: 3.12.35

Is there something wrong with what I have done? How can I add a symbol "+" in the vermagic?

[digitalLumberjack]

Hi pal, i restore the first makefile, could you try to reclone the repository and try to make the module ?

[musenwoody]

Thank you!

I'll have a try right now

[musenwoody]

It seems that the Makefile works:

but...

and in dmesg:

modinfo:

[musenwoody]

Hi.

I think the problem is there is something wrong with the module i compiled.Because I only get the vermagic "3.12.35".

And vermagic of the other modules worked on the Rpi is "3.12.35+" For example:

Any opinions?

[digitalLumberjack]

I changed my kernel to 3.12.35+, installed corresponding headers, tried to build the module. I have the same error as you.

And i can't explain yet :(

[musenwoody]

Thank you for your help. Maybe I should try another kernel .

Which version of kernel do you suggest to compile the module?

BTW, I downloaded the new RetroPie image(ver :2.4.2 beta) today. And I found that the kernel is 3.12.35+ too ...

[digitalLumberjack]

i'm goning to try the 3.12.2X or something like that. This issue here is that i wrote the driver with my c c++ skills but when it comes to kernel revision version errors with the good kernel and the good headers, i'm not so good...

[digitalLumberjack]

I'll try to install db9 or gamecon from http://www.niksula.hut.fi/~mhiienka/Rpi/ . I based the installation script and package on thoses. If they work i'll be able to correct the error.

[musenwoody]

Hi pal, you have done a great job of course !

I hope I could help with your project.I'll let you know once I make further progress.

[digitalLumberjack]

Ok, it works really great with kernel and headers 3.12.28+

[digitalLumberjack]

I'm contacting marqs, the original author of db9 driver, he publishes the headers on http://www.niksula.hut.fi/~mhiienka/Rpi/linux-headers-rpi/ too.

Maybe he can explain.

[digitalLumberjack]

Just for info, by configuring the Makefile in /lib/modules/3.12.38+/build/Makefile to have the + beside the version, the vermagic is ok, but that doesn't change nothing, the module won't load.

[musenwoody]

Thank you for your reply!

I will try 3.12.28+ , and 3.12.38+ later.

[digitalLumberjack]

Tell me if it's ok with 3.12.28+ ;)

The second solution would be to compile your own kernel and install it. But on RPi, it would take about 12 hours.

[musenwoody]

I will reply ASAP :)

[musenwoody]

Hi pal.

I got the same error on 3.12.28+

I tried a fresh image of RetroPie 2.3.

$ sudo rpi-update de69b134dc6e4066fe70db29816d57895dffd9b9 $ sudo reboot . . . $ sudo sh ./install.sh

And would you please tell me which line you edited in /lib/modules/3.12.X/build/Makefile to get the matched vermagic?

I tried this:

But it didn't work.

[digitalLumberjack]

I released a 0.1.3 version.

marqs updated it's header generator script, where the Module.symvers fetched was not the good one.

Now it works with 3.18.X kernels

[digitalLumberjack]

I'll be glad if you can test and confirm that :)

[musenwoody]

Hi. Thank you for your update! I will test it wiith pleasure!

[musenwoody]

Finally it worked on 3.18.3+.

Thank you for your great work!

[digitalLumberjack]

Super good !