On Fri, 22 Feb 2002, Michael Cardenas wrote: > Is DTR flow control supported?
I am not at all sure, because I don't know what it is. Hardware flow control as understood by the Linux C library is rts/cts flow control. > > There's a comment in comm.c in SetCommState that says it's not, but > EscapeCommFunction has a SETDTR case and a CLRDTR case. > No necessary connection. The app can manipulate those signals itself. Flow control as I understand it is done by the modem and the OS to prevent overrun of the FIFO and the OS's buffers, behind the app's back, so to speak. > Below are the lines I'm talking about. > > I'm working on an app that asks for DTR flow control and uses overlapped > IO when using a modem. It establishes a modem connection, but then it > can't send any data over the connection. I'm using an external modem on > a serial port. > Probably a logfile from wine --debugmsg +file,+comm yourapp.exe 2>&1 | tee logfile would mean more to me than excerpts from code I help maintain. +relay never hurts, except it takes so much space, but traces gzip pretty well. I expect Mike McCormack, the other person who is willing to touch Wine serial comms, will be along presently. Lawson ---oof--- ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/.
