http://bugs.winehq.org/show_bug.cgi?id=11811
--- Comment #6 from RBEmerson n5470@pinefields.com 2008-03-03 05:42:08 --- (In reply to comment #5)
Can you make sure the device works properly under Linux first, and make sure the serial port works under wine? AFAIK most GPS devices with a serial interface are very easy to talk to with just a terminal program.
The GPS receiver I used is essentially a 4800 baud ASCII source. It transmits ASCII sentences blindly (no handshaking, no RTS/CTS exchange, etc.). In fact, this particular combination (GPS receiver and laptop) were used together for two or three years, running CE under Windows on my boat. I tried the receiver on the outside chance that the app was actually seeing the ports but not reporting them because of no data on any port. For several reasons, I doubted that would work but it'd be silly not to try it.
However, my thinking is still centered on the fact CE sees no ports at all, not the default COM1-4, or the added COM5 (/dev/ttyUSB0). To that end, please recommend a Windows app (HyperTerminal???) known to work reliably as a COM port test tool. I can handle reading the ports on the Linux side, to verify they're working.