[Wine] Serial port problem and strange solution (Fujitsu MCU development under wine)

[Gabriele Oberhammer]

Hi to everyone, this is my first post to the list.
I'm developing an application for a Fujitsu MCU (90364 series) using 
Fujitsu Softune6 Workbench in linux under wine.
Everithing works well exept for the firmware serial uploader.
It starts and sends some commands to the MCU but hangs with a timeout 
error (obviously I've correctly simlinked and chmodded the appropriate 
ttyS*).
To investigate, I started the program again with the option 
WINDEBUG=+comm and ... incredible as it seems, the program worked 
*perfectly*.
So, is there any technical reason why a serial communication program 
works well with wine in debug mode but does not work in normal mode? The 
only explanations that came to my mind is that the huge amount of debug 
informations which are dumped to the console slows down the program and 
prevents the timeouts...
Anyone with similar experiences?

By the way, I'm planning to add Fujitsu Development Tools to the wine 
AppDb as soon as I've sorted this out.

Tnx in advance, bye :-)