[lwip-users] lwip's lowest level read routine?

[Chen]

Hi there,

My application requires to tag a small codes to the lowest level of read
routine to monitor a private non-standard packet as soon as it arrives (I
am using lwip+FreeRTOS+AVR32). preferable at the interrupt that retrieves
the data from the PHY: cature the special packet and perform action
immediately, but remove it from the queque so that lwip will not waste
time on it.

Any pointer to such path? Thanks