[Bug 25083] HyperTerminal unable to loop back on COM1 (RS-232)

http://bugs.winehq.org/show_bug.cgi?id=25083

--- Comment #6 from Graham Inggs  2010-11-12 07:27:46 CST ---
The attachments 'Terminal PortMon Log' and 'HyperTerminal PortMon Log' were
captured using the program PortMon (
http://technet.microsoft.com/en-us/sysinternals/bb896644.aspx ) running on
native Windows XP.

In each case I waited approximately 5 seconds before sending the string
'12345'.
Notice how Terminal continually attempts to read from the serial0, which times
out after 2ms, then checks the modem status lines.
Compare this to how HyperTerminal's read from serial0 does not time out, it
completes after 5.5s when the first character is echoed back.