[lwip-users] Understanding pbuf's

[Martin Osterloh]

Hi all,

I was reading about LwIPs allocation of pbufs recently but I am not sure if I understood the concept completely. 

My NIC driver provides an interrupt function that is called every time a frame is received. 

My intuition tells me that I have to allocate a pbuf now (of the frame's length).

But how do i actually fill in the blanks in the pbufs (in case there is a chain).

Can anyone clarify this? I'd appreciate it very much.

Thanks,

-Martin