| lwIP
    2.0.3
    Lightweight IP stack | 
| Macros | |
| #define | SLIP_USE_RX_THREAD !NO_SYS | 
| #define | SLIP_RX_FROM_ISR 0 | 
| #define | SLIP_RX_QUEUE SLIP_RX_FROM_ISR | 
| Functions | |
| err_t | slipif_init (struct netif *netif) | 
| void | slipif_poll (struct netif *netif) | 
SLIP netif API
| #define SLIP_RX_FROM_ISR 0 | 
Set this to 1 to enable functions to pass in RX bytes from ISR context. If enabled, slipif_received_byte[s]() process incoming bytes and put assembled packets on a queue, which is fed into lwIP from slipif_poll(). If disabled, slipif_poll() polls the serial line (using sio_tryread()).
| #define SLIP_RX_QUEUE SLIP_RX_FROM_ISR | 
Set this to 1 (default for SLIP_RX_FROM_ISR) to queue incoming packets received by slipif_received_byte[s]() as long as PBUF_POOL pbufs are available. If disabled, packets will be dropped if more than one packet is received.
| #define SLIP_USE_RX_THREAD !NO_SYS | 
Set this to 1 to start a thread that blocks reading on the serial line (using sio_read()).
SLIP netif initialization
Call the arch specific sio_open and remember the opened device in the state field of the netif.
| netif | the lwip network interface structure for this slipif | 
| void slipif_poll | ( | struct netif * | netif | ) | 
Polls the serial device and feeds the IP layer with incoming packets.
| netif | The lwip network interface structure for this slipif |