Modem control on 860/855

Hi everyone

Has anybody implemented modem control for the 860/855 SCC/SMC?  We need
to use the CTS/RTS for standard flow control and possibly DSR/DTR/DCD
lines as well.  If you could point me to existing source of offer any
suggestions it would be appreciated.

Then a question that is perhaps more related to standard Linux/UNIX
coding:
How does an application read the values of DCD and other inputs?

Thanks,
Coenraad

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