Unix Programming - serial monitoring with RTS/CTS

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Author serial monitoring with RTS/CTS
marco.guai@gmail.com

2007-11-22, 7:33 am

Hi all.
I have the Linux kernel 2.6

I need to use and monitoring a serial using HW control pins RTS/CTS.

I have tried to use: ioctl(fd, TIOCMBIS, TIOCM_RTS);
for set high the RTS pin.

but I have this error: -1.

someone can help me?

thanks in advance.
Marco Guai
Sergei Organov

2007-11-22, 1:23 pm

marco.guai@gmail.com writes:

> Hi all.
> I have the Linux kernel 2.6
>
> I need to use and monitoring a serial using HW control pins RTS/CTS.
>
> I have tried to use: ioctl(fd, TIOCMBIS, TIOCM_RTS);
> for set high the RTS pin.


Try:

int flags = TIOCM_RTS;
ioctl(fd, TIOCMBIS, &flags);

--
Sergei.
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