http://bugs.winehq.org/show_bug.cgi?id=7526
--- Comment #5 from Aleksandr Yakimov aleks@spamtest.ru 2008-01-16 10:04:21 --- (In reply to comment #4)
And have found this bug continues to hinder only my USB to Serial device using the mct_u232 driver.
I can use a regular DB9 cable connecting to the serial ports.
USB-serial problem discussed in bug 8783.