ioctl(TIOCMGET) on Lite5200

[saurosalomoni]

> In message
<HZ0056$6237825DE310949AB818EA81D16B09F0 at bol.com.br> you
wrote:
> >
> > I'm having a problem with a specific argument of the
> > ioctl function, which is ioctl(TIOCMGET).
> > I wrote a simple routine which just reads or writes the
> > RTS pin.
> > It worked OK on my Red Hat 9, under x86, but when I try
> > to run it on a Lite5200 using denx kernel 2.4-25, it
> > keeps saying "TIOCMGET failed: Invalid argument" and
>
> Well, that says it all: the TIOCMGET ioctl() is not
available for the
> 5200's PSC uart driver.
>
> Best regards,
>
> Wolfgang Denk

So, if the 5200 series don't support TIOCMGET and
TIOCMSET ioctl() (nor TIOCMBIS and TIOCMBIC, I've just
tried them), what could I possibly use to get/set the
control pin RTS in my Lite5200?...
Is there any other system call or function that
accomplishes that?

Thank you very much.


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