I'm trying to pull data from the serial port using a C++ program in Cygwin, but can't find the answers on how the data comes through. My programming is a bit rusty, so please go easy on me... :)
I have a device that puts out a constant stream of data to the serial port and I always want to access the latest byte of data. I don't want any of the data to be stored in a buffer, I always want to read the current byte being transmitted. I found some code online that pulls in the data from the serial port with readfile, but I'm not sure if readfile pulls in the data the way that I want. Does anyone know if readfile always pulls the latest byte when accessing the serial port or if there is a buffer of some sort? Thanks! -- View this message in context: http://www.nabble.com/Using-Readfile-to-get-serial-port-data-with-Cygwin...-tp18573752p18573752.html Sent from the Cygwin list mailing list archive at Nabble.com. -- 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/
