Okay
in this thread:
https://community.onion.io/topic/1134/guide-to-cross-compilation-for-omega2/7
I read that it is the LEDE Toolchain with musl that I have to use to cross-compile sources

I also found this link with a tutorial on how to cross-compile custom images:
https://wiki.onion.io/Tutorials/Cross-Compile

With the new Toolchain I have managed to cross compile the OpenCV sources for the Omega2

But I still have no idea how to cross compile the kernel modules
or even where I can find the kernel sources

Ok thank you

(Binary worked :3 now I can do pretty awesom stuff :D)

Morning everyone,

does anyone of you know where I can buy these femal USB A Ports from
the Mini Doc?
And where I can find a Eagle Lib for it?

Thanks in advance.

Okay good to know that thanks for the Information.
Going to play around and learn about this custom image stuff with my second om2
I guess.

As far as I know you can find a sdk
with omega2 and omega2+ configuration files on onions git hub

When configuring with "make menuconfig"
you will see sub options for omega2 and omega2+ if you select the mt7688 as target. Thats what I used for my images.

I never tested them cause atm I don't need them but as soon as I need custom kernel mods I will give them a try.

I remember that on Omega2 stock os your not able to install custom kernel mods.
At least it didn't work when I tried to install my "HelloWorld" kernel mod
I have accomplished to successfully comile :D.

When building the image with the build options from the onion sources I mentioned above will I then be able to install custom kernels?

Did work for me too (b152)

Also have 8Gb via SD now

Ok thank you

(Binary worked :3 now I can do pretty awesom stuff :D)

Ohh my gosh
I think it finally worked
At least I have an binary now :dancer_tone3:

open_world

was the rigth name.

Thank you so much really you saved my almost ended day

Now I only need to test it on the omega

Before I end this
do you have furth information about this compiling system
like good websites or anything else so that I can read myselfe into this whole stuff.

I ve found quiet a lot myself but I more is always better

Could you give an example for

-lwhatever

Ive tried it like this with no success

So I think this is not the right way.

I know that this is a very complex thing and all but for linux beginners
The whole stuff with the make system and the compiler system under linux with the trillions of parameters and stuff that have to be set.

Thats why im asking here cause I was not able to get it working after about 5 hours of research and hundrets of failed attempts.

Before this linking problem I had the problem that the system was not able to locate the headers but at least that I was able to fix

Had the same problem after sysupgradeing to firmware image 1.9 b1.52

Since I was able to connect via ssh I just changed the SSID
and in the consoles the Name

Good Evening,

How can I link against dynamic libs when cross compiling programs for the Omega2+?
Is there some guide on how I can do it?

I managed to compile the opencv sources using the toolchain
and copied the generated lib files (shared .so) into the /usr/lib directory of the Omega2+.
It seems to work since I can run the create_samples and create_traincasscade binarys to
produce the casscade detecting files used to detect objects on pictures.

At the moment I am trying to cross compile a simple sample program that only opens an image for processing it but I am not able to build the binary because there seems to be an error when linking everything together.

I tried building it using this command:

mipsel-openwrt-linux-musl-g++ -Wall -I/home/test/omega2 -L$LD_LIBRARY_PATH -o test Test1.cpp

LD_LIBRARY_PATH is set to the folder where I have put the cross compiled library files of opencv
and
/home/test/omega2 is the path where the headers are.

Executing it will generate these errors:

I dont really know what to do

Thanks for any help / guid / lecture ...

Thank you from me too.

After upgradeing the Omega2p to the new firmware yesterday
I somehow ran into a bootloop (can't imagine what happened
everything went fine and after the installation it rebooted into this bootloop)

This thread help me to fix it without having to build arround

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