open() function: different behaviours on WinNT ???
Philippe Noel
pnoel@socoint.com
Wed Aug 11 12:16:00 GMT 1999
Hi,
I currently have problems with the open() function under WinNT, when I try
to open a serial port. When the open function is called, the RTS line
raised ( contrary to Linux ). This behaviour is totally unacceptable for me
since I'm connecting a radio on the serial port, and the RTS line control
the TX carrier.
Here is the way I call the open function (very standard way to do this I
think):
const char* fname = "/dev/com1";
int fd = open( fname, O_RDWR | O_NDELAY );
if (fd != -1)
syslog( LOG_DEBUG, "Serial %s is open ok", fname );
else
syslog( LOG_ERR, "Can't open %s %m", fname );
Am I doing something wrong? Is there a way to solve this?
Please help, I'm really stuck.
P H I L I P P E N O E L
Socomar International (1995) inc.
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