Re: 8250 serial console fixes -- issue

[Krzysztof Halasa]

Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> writes:

> CRTSCTS is to enable RTS/CTS hardware handshaking for the tty, which
> is what the modem wants if it is doing hardware handshaking.

Yes. But a Hayes modem wants a bit more than just RTS/CTS handshaking.

> Why
> should we invent a non-standard option to enable RTS/CTS hardware
> handshaking when CRTSCTS is already defined to do this?

That's not my idea.

If we want to support modems (Hayes-compatible) we need to make sure,
in addition to CRTSCTS, that we don't send anything when DCD (or DSR)
is down - and then we probably need another option.

BTW I think you know all of this very well for years.
-- 
Krzysztof Halasa
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