Re: [lwip-users] netconn_new (NETCONN_TCP) returns NULL

[Kieran Mansley]

On Tue, 2011-05-31 at 18:00 +0100, MaX wrote:
> thank you very much for the replay. The return value of
> TCPIP_APIMSG(&msg)
> is -6.

If you look in include/lwip/err.h you can see that -6 is ERR_VAL.  The
most likely reason I can see for the netconn_new() code path to return
ERR_VAL is if you've given a type that it doesn't recognise: see
pcb_new() 

It would be worth adding some more verbose checking in that function to
see if it is returning ERR_VAL, or something else is the problem.  

Kieran