From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Glen Wernersbach <glen@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Linux Serial Does not work with CONFIG_XENO_OPT_PERVASIVE enabled
Date: Tue, 20 Mar 2012 16:24:35 +0100 [thread overview]
Message-ID: <4F68A133.5090801@domain.hid> (raw)
In-Reply-To: <CB8E17BE.1EE36%glen@domain.hid>
On 03/20/2012 04:17 PM, Glen Wernersbach wrote:
> Don't have a full dev enviroment on my embedded arm. Here is the program.
> Very very basic:
> close(fd);
>
>
>
>
>
>
> fd = open("/dev/ttyS4", O_RDWR | O_NOCTTY | O_NDELAY);
Why closing and reopening? Are you sure this does not reset configuration?
> if (fd == -1) {
> printf("open /dev/ttyS0 Failed, errno: %d\r\n", errno);
> return 0;
> }
>
>
> //write the data to my device which echos them back
> write(fd, buf, sizeof(buf)-1);
missing return value check.
>
--
Gilles.
next prev parent reply other threads:[~2012-03-20 15:24 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-20 13:28 [Xenomai-help] Linux Serial Does not work with CONFIG_XENO_OPT_PERVASIVE enabled Glen Wernersbach
2012-03-20 13:44 ` Philippe Gerum
2012-03-20 13:48 ` Glen Wernersbach
2012-03-20 13:57 ` Philippe Gerum
2012-03-20 14:07 ` Glen Wernersbach
2012-03-20 14:14 ` Philippe Gerum
2012-03-20 14:17 ` Philippe Gerum
2012-03-20 14:31 ` Philippe Gerum
2012-03-20 14:34 ` Glen Wernersbach
2012-03-20 14:47 ` Philippe Gerum
2012-03-20 14:53 ` Glen Wernersbach
2012-03-20 15:06 ` Philippe Gerum
2012-03-20 15:17 ` Glen Wernersbach
2012-03-20 15:24 ` Gilles Chanteperdrix [this message]
2012-03-20 15:27 ` Philippe Gerum
2012-03-20 16:09 ` Glen Wernersbach
2012-03-20 15:12 ` Gilles Chanteperdrix
2012-03-20 15:22 ` Glen Wernersbach
2012-03-20 15:26 ` Gilles Chanteperdrix
2012-03-20 16:40 ` Glen Wernersbach
2012-03-20 19:38 ` Gilles Chanteperdrix
2012-03-20 20:19 ` Glen Wernersbach
2012-03-20 20:35 ` Gilles Chanteperdrix
2012-03-20 21:20 ` Glen Wernersbach
2012-03-20 21:41 ` Philippe Gerum
2012-03-21 4:46 ` Glen Wernersbach
2012-03-21 7:43 ` Gilles Chanteperdrix
2012-03-21 13:21 ` Glen Wernersbach
2012-03-26 5:27 ` Glen Wernersbach
2012-03-21 8:38 ` Philippe Gerum
2012-03-21 14:41 ` Glen Wernersbach
2012-03-21 15:07 ` Philippe Gerum
2012-03-21 16:53 ` Glen Wernersbach
2012-03-20 16:22 ` Philippe Gerum
2012-03-20 16:32 ` Glen Wernersbach
2012-03-20 16:42 ` Gilles Chanteperdrix
2012-03-20 16:48 ` Glen Wernersbach
2012-03-20 14:50 ` Gilles Chanteperdrix
2012-03-20 14:59 ` Glen Wernersbach
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