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udp_pcb Struct Reference
the UDP protocol control block More...
#include <udp.h>
Data Fields | |
| IP_PCB | |
| Common members of all PCB types. | |
| u16_t | local_port |
| ports are in host byte order | |
| ip_addr_t | multicast_ip |
| outgoing network interface for multicast packets | |
| u8_t | mcast_ttl |
| TTL for outgoing multicast packets. | |
| u16_t | chksum_len_rx |
| used for UDP_LITE only | |
| udp_recv_fn | recv |
| receive callback function | |
| void * | recv_arg |
| user-supplied argument for the recv callback | |
Detailed Description
the UDP protocol control block
Definition at line 98 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
Field Documentation
| u16_t chksum_len_rx |
used for UDP_LITE only
Definition at line 119 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
Common members of all PCB types.
Definition at line 100 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
| u16_t local_port |
ports are in host byte order
Definition at line 108 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
| u8_t mcast_ttl |
TTL for outgoing multicast packets.
Definition at line 114 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
outgoing network interface for multicast packets
Definition at line 112 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
receive callback function
Definition at line 123 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
| void * recv_arg |
user-supplied argument for the recv callback
Definition at line 125 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/udp.h.
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