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SubjectRe: ttyS1 hangs, cua1 works fine
On Mar 30, Gert Doering wrote:

> Harald Koenig wrote:
>
> >> -parenb -parodd cs8 hupcl -cstopb cread -clocal crtscts
> > ^^^^^^^
> >clocal is set, that's needed to get hardware handshake (crtscts).
>
> You're sure? I thought it was only necessary [on Linux!] to enable SIGHUP
> when DCD drops, unlike SCO, where CRTSFL only works if CLOCAL is clear.

I only know it from RTFM: `man 1 stty' :

[-]clocal
Disable modem control signals.

haven't checked the kernel source details. maybe the FM is wrong ?!

or are RTS/CTS (hardware handshake) no modem _control_ signals?


Harald
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