serial port and unwanted NL -> CR/LF tranlastion

[Andrej Borsenkow]

LF -> CR-LF translation is normal when you output to terminal and is done by
tty driver (onlcr mode). Is it possible that COM driver is actually tty in
disguise on Cygwin? In this case you could use termios functions to turn onlcr
off.

-andrej

> -----Original Message-----
> From: cygwin-owner@sources.redhat.com
> [ mailto:cygwin-owner@sources.redhat.com]On Behalf Of Bruce Edge
> Sent: Thursday, November 23, 2000 2:52 AM
> To: cygwin support
> Subject: Re: serial port and unwanted NL -> CR/LF tranlastion
>
>
> Hi Corinna, thanks for the prompt response.
>
> I tried this and it had no effect.
> I added the O_BINARY and linked with /lib/binmode.
>
> Is there some other library I should now exclude? I ask as since
> there were no
> unresolved symbols before I added /lib/binmode.o, the link is picking up
> whatever symbols are in binmode.o from somewhere else.
>
> -Bruce.
>
> Corinna Vinschen wrote:
> >
> > Bruce Edge wrote:
> > >
> > > I opened /dev/com1 using:
> > >         open( name, O_RDWR | O_NOCTTY | O_NONBLOCK )
> > > and when I write to it using:
> > >         write( fd, buf, len );
> > > any 0x0a bytes are getting translated into 0x0d 0x0a pairs.
> > >
> > > How can I stop this?
> >
> > Try
> >           open( name, O_RDWR | O_NOCTTY | O_NONBLOCK | O_BINARY)
> >
> > or link your application with /lib/binmode.o
>
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