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Werner Motz wrote:
tcpip_callback(tcp_write(pcb, ucrecBuff, supersize, TCP_WRITE_FLAG_COPY),NULL);
tcpip_callback(tcp_output(pcb), NULL);
Ouch! tcpip_callback() takes a void pointer as first argument. You
are *first* calling tcp_write with the parameters supplied, then
passing the return valud of tcp_write to tcpip_callback. Here, an
'err_t' type is implicitly interpreted as a void pointer.
Seriously, learn C and learn to set up your compiler to warn about
such erroneous code!
If and when you have truly lwIP related questions, feel welcome here
to get them answered!
Simon
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