As far as I can tell, the Cygwin 1.5+ releases has broken tcsetattr ().
It appears that tcgetattr () works OK, but tcsetattr () seems to have
no affect on the tty's settings. In addition, once I have manually
configured a port using either stty or the DOS mode command, my
routines see a lot of garbage in the tty input stream as well as some
indication of some extra characters. This may be related to the
tcflush () problem reported in
<[EMAIL PROTECTED]>.
Overall, what I'm seeing smells like a sizes of things problem due to
the 64 bit upgrade.
I have since reinstalled a 1.3.22 release I had archived and my serial
communications stuff now works as expected.
________________________________________________________________________
Craig A. Gullixson
Instrument Engineer INTERNET: [EMAIL PROTECTED]
National Solar Observatory/Sac. Peak PHONE: (505) 434-7065
Sunspot, NM 88349 USA FAX: (505) 434-7029
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