[Bug 10056] False error on serial port read

http://bugs.winehq.org/show_bug.cgi?id=10056

--- Comment #1 from Alexandre Julliard   2007-10-16 09:27:02 ---
The right way would be to have read() return EAGAIN in that case, so that we
can do the async I/O or timeout handling manually. You could try to set VMIN to
1 and VTIME to 0, though I'm not sure this would do the right thing on all
platforms.