From owner-freebsd-hackers@FreeBSD.ORG Sat Oct 25 15:00:38 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 65AB41065679 for ; Sat, 25 Oct 2008 15:00:38 +0000 (UTC) (envelope-from en0f@bokey.mine.nu) Received: from mine.nu (60-242-68-238.static.tpgi.com.au [60.242.68.238]) by mx1.freebsd.org (Postfix) with ESMTP id 14BA68FC12 for ; Sat, 25 Oct 2008 15:00:37 +0000 (UTC) (envelope-from en0f@bokey.mine.nu) Received: by mine.nu (Postfix, from userid 1007) id 65FE4EBBB4; Sun, 26 Oct 2008 01:30:33 +1030 (CST) X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on machapuchre.volcano.com X-Spam-Level: X-Spam-Status: No, score=-1.4 required=2.0 tests=ALL_TRUSTED autolearn=ham version=3.2.5 Received: from machapuchre.volcano.com (localhost.localdomain [127.0.0.1]) by mine.nu (Postfix) with ESMTPSA id AA1E5EBBB3 for ; Sun, 26 Oct 2008 01:30:21 +1030 (CST) Message-ID: <49033485.5000105@bokey.mine.nu> Date: Sun, 26 Oct 2008 01:30:21 +1030 From: en0f User-Agent: Mozilla-Thunderbird 2.0.0.16 (X11/20080724) MIME-Version: 1.0 To: freebsd-hackers References: <539c60b90810241534l6bedc5e3s1c2e3162c2a7ff38@mail.gmail.com> <4902CC86.8030408@bokey.mine.nu> <20081025075648.GB55339@icarus.home.lan> <4902D1FA.3070003@bokey.mine.nu> <20081025081305.GA55683@icarus.home.lan> <20081025092157.GB86967@oberon.njm.f2s.com> In-Reply-To: <20081025092157.GB86967@oberon.njm.f2s.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: neophyte: tcsetattr() gives 22 error in i386, not in amd64? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Oct 2008 15:00:38 -0000 N.J. Mann wrote: > In message <20081025081305.GA55683@icarus.home.lan>, > Jeremy Chadwick (koitsu@FreeBSD.org) wrote: >> On Sat, Oct 25, 2008 at 06:29:54PM +1030, en0f wrote: >>> Jeremy Chadwick wrote: >>>> On Sat, Oct 25, 2008 at 06:06:38PM +1030, en0f wrote: >>>>> Nate Eldredge wrote: >>>>>> On Fri, 24 Oct 2008, Steve Franks wrote: >>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> I'm getting a 22 errno from tcsetattr() on 7-STABLE i386 in code which >>>>>>> was working under 7-STABLE amd64. Serial device is a ucom (silabs >>>>>>> cp2103). Permissions on /dev/cuaU0 look fine. Cutecom/Minicom >>>>>>> appears to open the port without error... >>>>>> I don't see anything obviously wrong, but I'd bet a bug related to >>>>>> 32/64-bit types. Can you post a complete piece of code that can be >>>>>> compiled and run and demonstrates the problem? Also, try compiling with >>>>>> -Wall -W and investigate any warnings that are produced. >>>>>> >>>>>> By the way, errno 22 is EINVAL, "Invalid argument". perror() is your >>>>>> friend. >>>>> Strange freebsd doesnt document error numbers. On POSIX, errno 22 is >>>>> EINVAL as well (documented in errno(3)). Is this applicable to freebsd? >>>> /usr/include/errno.h isn't documentation of error numbers? >>> Gahhhhh! But Jeremy, I dont have magic brains to work me way out of >>> source code :) >> You're confusing me. :P The errors in errno.h are commented, and it's >> quite readable. Of course, it matches what's in errno(3). > > Just in case someone actually goes looking for errno(3)... It is > actually errno(2), but I'm sure you knew that. :-) Was a good discussion :) Jeremy, not everyone's going to madly grep the fbsd source are they? :P Nick, I was actually reading some non-authoritative manpage online[1] so did not find one so got quite a bit excited! Found it now ;) Thanks for the pointer. I mainly subscribe to fbsd-hackers because of the pool of knowledge people have & share on the list. :) [1] !http://www.freebsd.org/cgi/man.cgi -- en0f