Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Date: Tue, 23 Aug 2005 15:08:59 -0400 (EDT) From: Igor Pechtchanski Reply-To: cygwin@cygwin.com To: pppd cc: cygwin@cygwin.com Subject: Re: 1.5.18 ( 0.132/4/2 ) - read() - blocks ( serial programming ) In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: MULTIPART/Mixed; BOUNDARY="_=__=_XaM3_.1124818673.2A.73709.42.17028.52.42.007.2058218701" Content-ID: --_=__=_XaM3_.1124818673.2A.73709.42.17028.52.42.007.2058218701 Content-Type: TEXT/PLAIN; CHARSET=iso-8859-1 Content-Transfer-Encoding: 8BIT Content-ID: On Tue, 23 Aug 2005, pppd wrote: > Hello guys, > > I´m working to convert a Linux application to work with Windows > XP under Cygwin 1.5.18 ( 0.132/4/2 ). Ncurses package and parallel port > programming works without changes ( congratulations ). I have a problem > with serial programming. > > First, I did two C files: ( attached ) > > setcmc7.c - Sets serial configuration through Win32 API. ( Linux > termios settings/functions doesn't work for me :-( ). > cmc7.c - Read caracters from serial. > > After setting serial configuration by setcmc7.c I can read serial port > using cmc7. > > My doubt is: Why read() function blocks the terminal (keyboard) until > read a caracter ? At Linux it's work fine ( same code ). > > My application needs to read keyboard at the same time with serial. > I have tried some flags with open ( O_NONBLOCK, O_NDELAY .. ) > unfortunately doesn't work too. > > Does anybody can help me please? I doubt the same code works on Linux, since open("COM1") will fail there. You need to open something that Cygwin knows is a serial port, i.e., "/dev/ttyS0" (or "/dev/com1", but not "COM1"). Plus, you can probably write setcmc7.c using Cygwin calls as well (instead of Win32, that is). Igor -- http://cs.nyu.edu/~pechtcha/ |\ _,,,---,,_ pechtcha@cs.nyu.edu ZZZzz /,`.-'`' -. ;-;;,_ igor@watson.ibm.com |,4- ) )-,_. ,\ ( `'-' Igor Pechtchanski, Ph.D. '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow! If there's any real truth it's that the entire multidimensional infinity of the Universe is almost certainly being run by a bunch of maniacs. /DA --_=__=_XaM3_.1124818673.2A.73709.42.17028.52.42.007.2058218701 Content-Type: text/plain; charset=us-ascii -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ --_=__=_XaM3_.1124818673.2A.73709.42.17028.52.42.007.2058218701--