This is the mail archive of the
ecos-discuss@sources.redhat.com
mailing list for the eCos project.
Re: Serial Port , Raw Mode using cyg_io_read
- From: aprakash at tataelxsi dot co dot in
- To: Andrew Lunn <andrew at lunn dot ch>
- Cc: ecos-discuss at sources dot redhat dot com
- Date: Wed, 06 Jul 2005 15:06:33 +0500
- Subject: Re: [ECOS] Serial Port , Raw Mode using cyg_io_read
Ok. Thanks andrew...
Is there any function or call to know, howmany bytes available to read in my serial buffer ?.
Thanks
Prakash
----- Original Message -----
From: Andrew Lunn <andrew@lunn.ch>
Date: Wednesday, July 6, 2005 3:00 pm
Subject: Re: [ECOS] Serial Port , Raw Mode using cyg_io_read
> On Wed, Jul 06, 2005 at 02:35:27PM +0530, Annamalai Prakash wrote:
> > On Wednesday 06 July 2005 02:32 pm, you wrote:
> > > Hi,
> > >
> > > Did you tried to open the /dev/ser0 , /dev/ser1 ? Something like:
> > >
> > > err = cyg_io_lookup( "/dev/ser1", &fd );
> >
> > yes, i tried to open ... it was opened...... but i want to make
> sure, whether
> > it is RAW Mode or TTY Mode.
>
> The device does not have modes like in unix. There are different
> devices for each mode. /dev/ser0 is the lowest level and gives you
> direct access to the serial driver. /dev/tty0 is the next level up and
> gives you a basic tty level similar to cooked mode. Then there is
> /dev/termios0 which is layed on top of /dev/tty0.
>
> Andrew
>
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss