Padding of transmitted isotp messages simplifies usage

[Frankyboy100880]

Many thanks for the great library, which saves us a lot of time.

During a proof of concept we stumbled upon a problem, which could be only resolved by changing the Curf.py a bit.

Can you please change the following line in Curf.py on line 213, so that messages not fitting an 8 Byte Can-Frame are automatically filled up with padding bytes:

self.isotp_stack = isotp.CanStack(
     bus=self.bus, 
     address=self.isotp_addr,  
     error_handler=self.curf_error_handler, 
     params = {"tx_padding":0x55}) 

[RomainNaour]

@Frankyboy100880

Can you send a Pull Request containing your patch ?

Best regards, Romain

[Frankyboy100880]

I'm unable to push a new branch to this repo. Am I allowed to do so? Can I create a branch here with the Web frontend of GitHub?

I tried it directly, but there are problems with my credentials:

$ git push --set-upstream origin Hotfix/AddPadding                                                                         
remote: Permission to Openwide-Ingenierie/robotframework-can-uds-library.git denied to Frankyboy100880.
fatal: unable to access 'https://github.com/Openwide-Ingenierie/robotframework-can-uds-library.git/': The requested URL returned error: 403

[RomainNaour]

@Frankyboy100880

The github process to send a Pull Request is:

• fork the upstream repository to your github account
• push your branch you want to contribute
• create a Pull Request from you account to the upstream repo.

https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request-from-a-fork

[Frankyboy100880]

Thanks for the help. I created a pull request for my issue.