Re: [lwip-users] low_level_output question

[address@hidden]

John Kennedy wrote:
> Since pbuf_free decrements the pbuf reference count and only frees the pbuf 
> when the reference count goes to zero I assumed that by incrementing the 
> reference count in the Ethernet driver it would prevent the stack from freeing 
> or reusing the pbuf, and that the Ethernet driver should then call pbuf_free 
> when done with the pbuf.  My original question was to verify this assumption.
>   

Your assumtption is indeed correct, but it doesn't account for 
application buffers used with PBUF_REF/_ROM.

Simon