Re: [lwip-users] how lwip know internet cable is unplug

[Simon Goldschmidt]

address@hidden wrote:
> So protection around my calls it is, but I don't quite see how RX and TX 
> can be handled in the same thread since the TX-function is registered with
> lwip in the netif-structure and RX isn't. 

By using tcpip_input() as the input function. This passes received packets into 
the tcpip_thread before actually feeding them into the stack.

> OK I see now that there is an input-pointer in the netif-structure as well
> but it's not referenced in the driver-template (ethernetif.c) so I 
> invented something on my own...I'll have to dig through the examples one 
> more time and look how they have done it...

It *is*: it's not set there but it is used. The code that sets it is in netif.c 
(the function being set as netif->input has to be passed to netif_add()).

Simon
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