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AM2431: How to change the snd buf size in LWIP?

Qiao,Xue
Prodigy 210 points
Part Number: AM2431

Tool/software:

I am using SDK8.3.0 (It is currently difficult for us to upgrade to the latest SDK version.)

I want to change the SO_SNDBUF, but it is not implemented.

I'd like to confirm that:

To achieve the functionality of SO_SNDBUF, can modifying TCP_SND_BUF achieve the same effect?

if not, can you give some advice to achieve the same effect?

  • 0
    TI__Mastermind 27290 points

    Hi ,

    Thanks for your query.

    Will check on this and get back to you.

    Regards

    Ashwani

  • +1
    TI__Intellectual 2810 points

    Hi ,

    Yes, the SO_SNDBUF is not implemented in the LwIP as of now.
    You can set the value of TCP_SND_BUF to achieve similar results, but it is a compile time configuration, and this will be applicable globally. So, if any other applications have conflicting requirements, it has to be a trade-off. 

    Although, there are implementations of SO_SNDBUF available in LwIP forums if you are interested to give it a try. This has not been tested internally in TI. So, we don't have assurance about its stability.

    Best Regards,
    Teja.