Moxa Technologies C360 Manual de usuario descargar pdf (Pagina 39)

For UNIX Users • • Chapter 4

33

int sio_flush(int port, int func)

return = 0 ok

-1 bad port

-2 time out

-5 port is not open

port = port number

func = flush function (clear the assigned queue)

0 for input queue

1 for output queue

2 for input & output queue

9. Read the length of data queued in Rx buffer.

long sio_iqueue(int port)

return = >0 input queue size(bytes)

-1 bad port

-2 time out

-5 port is not open

port = port number

10. Read the length of data queued in Tx buffer.

long sio_oqueue(int port)

return = >=0 length of transmitted data which still

queued in Tx buffer

-1 bad port

-2 time out

-5 port is not open

port = port number

11. Get modem line status.

int sio_lstatus(int port)

return = >0 line status : bit 0 -- S_CTS

bit 1 -- S_DSR

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 54 55

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