X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=1.6 required=5.0 tests=AWL,BAYES_20,FREEMAIL_FROM,KAM_THEBAT,KHOP_THREADED,SPF_SOFTFAIL X-Spam-Check-By: sourceware.org Date: Mon, 11 Feb 2013 07:43:02 +0400 From: Andrey Repin Reply-To: Andrey Repin Message-ID: <52811835.20130211074302@mtu-net.ru> To: Norman Shapiro , cygwin@cygwin.com Subject: Re: Accessing a printer port In-Reply-To: <201302101548.r1AFmnYw039876@shell0.rawbw.com> References: <201302101548.r1AFmnYw039876@shell0.rawbw.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 Greetings, Norman Shapiro! > Here is my problem. There is an old laptop running Windows XP. It has a > female "printer port", which I understand is also known as a "parallel > port". Yup. > There is a male 25 pin to female 9 pin adapter that fits the female port. Nop. This is likely a SERIAL (Also known as "COM") PORT 9<->25 pin adapter. > The 9 pin end will eventually be connected to a serial device. You can't connect serial devices to a printer port. Unless you want to damage either, or both of them. > I want to send characters to the serial device, from a C program. > Can I just open("/cygdrive/c/prn", ...)? First off, why you're trying to open "prn" file from C: drive? > Can I use tcsetattr on the resulting file descriptor? -- WBR, Andrey Repin (anrdaemon@freemail.ru) 11.02.2013, <07:40> Sorry for my terrible english... -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple