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From: | Ahsan Qamar <ahsan_eng AT hotmail DOT com> |
To: | <cygwin AT cygwin DOT com> |
Subject: | Intrfacing USB-serial port |
Date: | Wed, 9 Apr 2008 15:24:45 +0500 |
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Hi I am trying to interface a Pan tilt camera which comunicates serially. however I had to use a USB-serial adaptor because of not having a built in serial port. According to my knowledge from Cygwin mailing list, USB-Serial COM2 should be accessed as /dev/ttyS1. I tried 1. echo test> /dev/ttyS1 and cat /dev/ttyS1 but it doesnt work (cat has to be interrupted) 2. echo test> /dev/ttyUSB1 and cat /dev/ttyUSB1 which works 3. I am not able to configure /dev/ttyUSB1 for baud rate etc I use a library which communicates with the camera serially, and the library is giving me error of not being able to open the port in the following function either way if(cam1->Open(1,"/dev/ttyUSB1") != 1) or if(cam1->Open(1,"/dev/ttyS1") != 1) How should I access the USB-Serial COM2 since I suspect the problem lies in port settings or configuration. Is it because of port number or port permissions? ------- Ahsan Qamar _________________________________________________________________ Connect to the next generation of MSN Messenger http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=wlmailtagline -- 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/
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